CA2646439A1 - System, method, and computer program product for controlling stereo glasses shutters - Google Patents
System, method, and computer program product for controlling stereo glasses shutters Download PDFInfo
- Publication number
- CA2646439A1 CA2646439A1 CA002646439A CA2646439A CA2646439A1 CA 2646439 A1 CA2646439 A1 CA 2646439A1 CA 002646439 A CA002646439 A CA 002646439A CA 2646439 A CA2646439 A CA 2646439A CA 2646439 A1 CA2646439 A1 CA 2646439A1
- Authority
- CA
- Canada
- Prior art keywords
- eye shutter
- display
- recited
- right eye
- vertical blanking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
- G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/144—Processing image signals for flicker reduction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
- H04N13/341—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/398—Synchronisation thereof; Control thereof
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
- G02B2027/0134—Head-up displays characterised by optical features comprising binocular systems of stereoscopic type
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2213/00—Details of stereoscopic systems
- H04N2213/002—Eyestrain reduction by processing stereoscopic signals or controlling stereoscopic devices
Abstract
A system, method, and computer program product are provided for controlling stereo glasses shutters. In use, a right eye shutter of stereo glasses is controlled to switch between a closed orientation and an open orientation, by utilizing a right eye control signal (206). Further, a left eye shutter of the stereo glasses is controlled to switch between the closed orientation and the open orientation, by utilizing a left eye control signal (208). To this end, the right eye shutter and the left eye shutter of the stereo glasses may be controlled such that the right eye shutter and the left eye shutter simultaneously remain in the closed orientation for a predetermined amount of time (209).
Description
SYSTEM, METHOD, AND COMPUTER PROGRAM
PRODUCT FOR CONTROLLING STEREO GLASSES
SHUTTERS
FIELD OF THE INVENTION
The present invention relates to video displays, and more particularly to viewing stereo video and graphics images utilizing stereo shutter glasses.
BACKGROUND
Various display devices are equipped for both mono and stereo viewing. Unlike mono viewing, stereo viewing involves the display of separate content for the right and left human eye. Specifically, such stereo viewing requires the presentation of a separate image to the left and right human eye. In one particular type of stereo viewing, namely time sequential stereo, such left and right images are presented in an alternating manner.
To ensure a proper stereo viewing experience, alternating shutter glasses are also typically used which make the left image visible to the left eye and the right image to the right eye at the appropriate time.
In the past, time sequential stereo viewing has worked well on CRTs and related displays [e.g. high frame rate (DLP) projectors, etc.]. However, time sequential stereo viewing has not shown promise with liquid=crystal displays (LCDs), whether flat-panel or in the form of a projector, due to several issues. For example, a slow response time of pixels in LCD environments causes 'ghosting' of the left image in the right view, and visa versa. Still yet, the nature of the LCD update process unfortunately results in only short periods of time when the right image and left image may be present in their entirety, as will now be described in more detail.
Figure 1A illustrates hypothetical shortcomings that would exist if stereo viewing were attempted utilizing an LCD. As shown in the present hypothetical example, the LCD would receive pixels in raster scan order (i.e. left to right, line by line from top to bottom, etc.) over a cable 10, such as a digital video interface (DVI) or video graphics array (VGA) cable. A first left image Li intended for viewing by a left eye is sent over the cable 10 first. Thereafter, there is a pause in transmission called the vertical blanking interval VBI. Next, a first right image R1 intended for the right eye is sent, and so forth.
Unlike CRTs and other related displays, LCD pixels have individual capacitive storage elements that cause each pixel to retain its color and intensity until it is updated by LCD driver-related electronics, which addresses pixels in raster order.
Thus, at time T1, when part of the first right image RI has been sent, the actual image emitted from the LCD screen includes the `not yet overwritten' (e.g. red) part of first left image Ll at the bottom, and the newly written (e.g. green) part'of the first right image R1. Further, at T2, and, in fact, for the entire vertical blanking interval VBI starting at time T2, the display includes only the first right image R1. At time T3, the first right image RI has been partially overwritten by a second left image L2, in the manner shown. To this end, if the display content at time TI and T3 were shown to the left or right eye, such eye would unfortunately receive content, at least in part, not intended for such eye.
As mentioned earlier, stereo glasses equipped with right and left eye shutters are often employed to ensure that the proper eye views the appropriate image, during stereo viewing. As shown, in the present hypothetical example, after the first left image L1 is displayed, a left eye shutter control 20 switches the left shutter to an open orientation (during which a right shutter is maintained in a closed orientation).
Similarly, after the first right image Rl is displayed, a right eye shutter contro130 switches the right shutter to an open orientation (at which time the left shutter toggles to and is maintained in a closed orientation).
Again, each eye unfortunately, receives content, at least in part, not intended for such eye for a sizeable portion of the duration in which the associated shutter is in the open orientation, resulting in unacceptable stereo viewing. There is thus a need for overcoming these and/or other problems associated with the prior art.
PRODUCT FOR CONTROLLING STEREO GLASSES
SHUTTERS
FIELD OF THE INVENTION
The present invention relates to video displays, and more particularly to viewing stereo video and graphics images utilizing stereo shutter glasses.
BACKGROUND
Various display devices are equipped for both mono and stereo viewing. Unlike mono viewing, stereo viewing involves the display of separate content for the right and left human eye. Specifically, such stereo viewing requires the presentation of a separate image to the left and right human eye. In one particular type of stereo viewing, namely time sequential stereo, such left and right images are presented in an alternating manner.
To ensure a proper stereo viewing experience, alternating shutter glasses are also typically used which make the left image visible to the left eye and the right image to the right eye at the appropriate time.
In the past, time sequential stereo viewing has worked well on CRTs and related displays [e.g. high frame rate (DLP) projectors, etc.]. However, time sequential stereo viewing has not shown promise with liquid=crystal displays (LCDs), whether flat-panel or in the form of a projector, due to several issues. For example, a slow response time of pixels in LCD environments causes 'ghosting' of the left image in the right view, and visa versa. Still yet, the nature of the LCD update process unfortunately results in only short periods of time when the right image and left image may be present in their entirety, as will now be described in more detail.
Figure 1A illustrates hypothetical shortcomings that would exist if stereo viewing were attempted utilizing an LCD. As shown in the present hypothetical example, the LCD would receive pixels in raster scan order (i.e. left to right, line by line from top to bottom, etc.) over a cable 10, such as a digital video interface (DVI) or video graphics array (VGA) cable. A first left image Li intended for viewing by a left eye is sent over the cable 10 first. Thereafter, there is a pause in transmission called the vertical blanking interval VBI. Next, a first right image R1 intended for the right eye is sent, and so forth.
Unlike CRTs and other related displays, LCD pixels have individual capacitive storage elements that cause each pixel to retain its color and intensity until it is updated by LCD driver-related electronics, which addresses pixels in raster order.
Thus, at time T1, when part of the first right image RI has been sent, the actual image emitted from the LCD screen includes the `not yet overwritten' (e.g. red) part of first left image Ll at the bottom, and the newly written (e.g. green) part'of the first right image R1. Further, at T2, and, in fact, for the entire vertical blanking interval VBI starting at time T2, the display includes only the first right image R1. At time T3, the first right image RI has been partially overwritten by a second left image L2, in the manner shown. To this end, if the display content at time TI and T3 were shown to the left or right eye, such eye would unfortunately receive content, at least in part, not intended for such eye.
As mentioned earlier, stereo glasses equipped with right and left eye shutters are often employed to ensure that the proper eye views the appropriate image, during stereo viewing. As shown, in the present hypothetical example, after the first left image L1 is displayed, a left eye shutter control 20 switches the left shutter to an open orientation (during which a right shutter is maintained in a closed orientation).
Similarly, after the first right image Rl is displayed, a right eye shutter contro130 switches the right shutter to an open orientation (at which time the left shutter toggles to and is maintained in a closed orientation).
Again, each eye unfortunately, receives content, at least in part, not intended for such eye for a sizeable portion of the duration in which the associated shutter is in the open orientation, resulting in unacceptable stereo viewing. There is thus a need for overcoming these and/or other problems associated with the prior art.
SUMMARY
A system, method, and computer program product are provided for controlling stereo glasses shutters. In use, a right eye shutter of stereo glasses is controlled to switch between a closed orientation and an open orientation. Further, a left eye shutter of the stereo glasses is controlled to also switch between the closed orientation and the open orientation. In use, the right eye shutter and the left eye shutter of the stereo glasses may be controlled such that the right eye shutter and the left eye shutter simultaneously remain in the closed orientation for a predetermined amount of time.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1A illustrates hypothetical shortcomings that would exist if stereo 5 viewing were attempted utilizing a liquid crystal display (LCD).
Figure IB illustrates an exemplary computer system in which the various architecture and/or functionality of various embodiments may be implemented.
Figure 2 shows an exemplary timing for enhancing a viewing experience when display content is viewed utilizing stereo glasses, in accordance with one embodiment.
Figure 3 shows a method for increasing a vertical blanking interval for enhancing a viewing experience when display content is viewed utilizing stereo glasses, in accordance with one embodiment.
Figure 4 shows a method for increasing a vertical blanking interval for enhancing a viewing experience when display content is viewed utilizing stereo glasses, in accordance with another embodiment.
Figure 5 shows an exemplary timing for use when display content is viewed utilizing stereo glasses and an LCD or the like, in accordance with yet another embodiment.
A system, method, and computer program product are provided for controlling stereo glasses shutters. In use, a right eye shutter of stereo glasses is controlled to switch between a closed orientation and an open orientation. Further, a left eye shutter of the stereo glasses is controlled to also switch between the closed orientation and the open orientation. In use, the right eye shutter and the left eye shutter of the stereo glasses may be controlled such that the right eye shutter and the left eye shutter simultaneously remain in the closed orientation for a predetermined amount of time.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1A illustrates hypothetical shortcomings that would exist if stereo 5 viewing were attempted utilizing a liquid crystal display (LCD).
Figure IB illustrates an exemplary computer system in which the various architecture and/or functionality of various embodiments may be implemented.
Figure 2 shows an exemplary timing for enhancing a viewing experience when display content is viewed utilizing stereo glasses, in accordance with one embodiment.
Figure 3 shows a method for increasing a vertical blanking interval for enhancing a viewing experience when display content is viewed utilizing stereo glasses, in accordance with one embodiment.
Figure 4 shows a method for increasing a vertical blanking interval for enhancing a viewing experience when display content is viewed utilizing stereo glasses, in accordance with another embodiment.
Figure 5 shows an exemplary timing for use when display content is viewed utilizing stereo glasses and an LCD or the like, in accordance with yet another embodiment.
DETAILED DESCRIPTION
Figure 1 illustrates an exemplary computer system 100 in which the various architecture and/or functionality of different embodiments may be implemented.
As shown, a computer system 100 is provided including at least one host processor which is connected to a communication bus 102. The computer system 100 also includes a main memory 104. Control logic (software) and data are stored in the main memory 104 which may take the form of random access memory (RAM).
The computer system 100 also includes a graphics processor 106 and a display 108 in the form of a liquid crystal display (LCD), digital light processing (DLP) display, liquid crystal on silicon (LCOS) display, plasma display, or other similar display. In one embodiment, the graphics processor 106 may include a plurality of shader modules, a rasterization module, etc. Each of the foregoing modules may even be situated on a single semiconductor platform to form a graphics processing unit (GPU).
In the present description, a single semiconductor platform may refer to a sole unitary semiconductor-based integrated circuit or chip. It should be noted that the term single semiconductor platform may also refer to multi-chip modules with increased connectivity which simulate on-chip operation, and make substantial improvements over utilizing a conventional central processing unit (CPU) and bus implementation. Of course, the various modules may also be situated separately or in various combinations of semiconductor platforms per the desires of the user.
The computer system 100 may also include a secondary storage 110. The secondary storage 110 includes, for example, a hard disk drive and/or a removable storage drive, representing a floppy disk drive, a magnetic tape drive, a compact disk drive, etc. The removable storage drive reads from and/or writes to a removable storage unit in a well known manner.
Computer programs, or computer control logic algorithms, may be stored in the main memory 104 and/or the secondary storage 110. Such computer programs, when executed, enable the computer system 100 to perform various functions.
Memory 104, storage 110 and/or any other storage are possible examples of computer-readable media.
Further included is a pair of stereo glasses 111 capable of being worn on a face of a user. While the stereo glasses 111 are shown to include two elongated members for supporting the same on the face of the user, it should be noted that other constructions (e.g. member-less design, head strap, helmet, etc.) may be used to provide similar or any other type of support. As further shown, the stereo glasses 111 also include a right eye shutter 114 and a left eye shutter 113.
Both the right eye shutter 114 and left eye shutter 113 are capable of both an open orientation and a closed orientation. In use, the open orientation allows more light therethrough with respect to the closed orientation. Of course, such orientations may be achieved by any desired mechanical, electrical, optical, and/or any other mechanism capable of carrying out the above functionality.
For control purposes, the stereo glasses 111 may be coupled to a stereo controller 119 via a cable 118 (or without the cable 118 in a wireless environment). The stereo controller 119 is, in turn, coupled between the graphics processor 106 and the display 108 for carrying out the functionality to be set forth hereinafter.
While the stereo controller 119 is shown to reside between the graphics processor 106 and the display 108, it should be noted that the stereo controller 119 may reside in any location associated with the computer system 100, the stereo glasses 111, and/or even in a separate module, particularly (but not necessarily) in an embodiment where the graphics processor 106 is attached to a separate interface [e.g. universal serial bus (USB), etc.] on the computer system 100_ In one embodiment, the display 108 may be directly connected to the computer system 100, and the stereo controller 119 may further be directly connected to the computer system 100 via a USB interface. Still yet, the stereo controller 119 may comprise any hardware and/or software capable of the providing the desired functionality.
Specifically, in some embodiments, the right eye shutter 114 and left eye shutter 113 are controlled to switch between the closed orientation and the open orientation.
For reasons that will be apparent hereinafter, the right eye shutter 114 and left eye shutter 113 of the stereo glasses 111 may be controlled such that the right eye shutter 114 and leii', eye shutter 113 simultaneously remain in the closed orientation for a predetermined amount of time. In particular, as will soon become apparent, such technique reduces a duration in which each eye receives content, at least in part, not intended for such eye, resulting in enhanced stereo viewing of content on the display 108.
In addition to and/or instead of the foregoing technique, the stereo controller 119, the display 108, and/or any other appropriate hardware/software associated with the computer system 10.0 may be equipped with functionality for adapting the display 108 in a way that enhances a viewing experience when display content is viewed utilizing the stereo glasses 111. Specifically, a duration of a vertical blanking interval associated with received display content may be increased for enhancing a viewing experience when the display content is viewed utilizing the stereo glasses 111.
Figure 1 illustrates an exemplary computer system 100 in which the various architecture and/or functionality of different embodiments may be implemented.
As shown, a computer system 100 is provided including at least one host processor which is connected to a communication bus 102. The computer system 100 also includes a main memory 104. Control logic (software) and data are stored in the main memory 104 which may take the form of random access memory (RAM).
The computer system 100 also includes a graphics processor 106 and a display 108 in the form of a liquid crystal display (LCD), digital light processing (DLP) display, liquid crystal on silicon (LCOS) display, plasma display, or other similar display. In one embodiment, the graphics processor 106 may include a plurality of shader modules, a rasterization module, etc. Each of the foregoing modules may even be situated on a single semiconductor platform to form a graphics processing unit (GPU).
In the present description, a single semiconductor platform may refer to a sole unitary semiconductor-based integrated circuit or chip. It should be noted that the term single semiconductor platform may also refer to multi-chip modules with increased connectivity which simulate on-chip operation, and make substantial improvements over utilizing a conventional central processing unit (CPU) and bus implementation. Of course, the various modules may also be situated separately or in various combinations of semiconductor platforms per the desires of the user.
The computer system 100 may also include a secondary storage 110. The secondary storage 110 includes, for example, a hard disk drive and/or a removable storage drive, representing a floppy disk drive, a magnetic tape drive, a compact disk drive, etc. The removable storage drive reads from and/or writes to a removable storage unit in a well known manner.
Computer programs, or computer control logic algorithms, may be stored in the main memory 104 and/or the secondary storage 110. Such computer programs, when executed, enable the computer system 100 to perform various functions.
Memory 104, storage 110 and/or any other storage are possible examples of computer-readable media.
Further included is a pair of stereo glasses 111 capable of being worn on a face of a user. While the stereo glasses 111 are shown to include two elongated members for supporting the same on the face of the user, it should be noted that other constructions (e.g. member-less design, head strap, helmet, etc.) may be used to provide similar or any other type of support. As further shown, the stereo glasses 111 also include a right eye shutter 114 and a left eye shutter 113.
Both the right eye shutter 114 and left eye shutter 113 are capable of both an open orientation and a closed orientation. In use, the open orientation allows more light therethrough with respect to the closed orientation. Of course, such orientations may be achieved by any desired mechanical, electrical, optical, and/or any other mechanism capable of carrying out the above functionality.
For control purposes, the stereo glasses 111 may be coupled to a stereo controller 119 via a cable 118 (or without the cable 118 in a wireless environment). The stereo controller 119 is, in turn, coupled between the graphics processor 106 and the display 108 for carrying out the functionality to be set forth hereinafter.
While the stereo controller 119 is shown to reside between the graphics processor 106 and the display 108, it should be noted that the stereo controller 119 may reside in any location associated with the computer system 100, the stereo glasses 111, and/or even in a separate module, particularly (but not necessarily) in an embodiment where the graphics processor 106 is attached to a separate interface [e.g. universal serial bus (USB), etc.] on the computer system 100_ In one embodiment, the display 108 may be directly connected to the computer system 100, and the stereo controller 119 may further be directly connected to the computer system 100 via a USB interface. Still yet, the stereo controller 119 may comprise any hardware and/or software capable of the providing the desired functionality.
Specifically, in some embodiments, the right eye shutter 114 and left eye shutter 113 are controlled to switch between the closed orientation and the open orientation.
For reasons that will be apparent hereinafter, the right eye shutter 114 and left eye shutter 113 of the stereo glasses 111 may be controlled such that the right eye shutter 114 and leii', eye shutter 113 simultaneously remain in the closed orientation for a predetermined amount of time. In particular, as will soon become apparent, such technique reduces a duration in which each eye receives content, at least in part, not intended for such eye, resulting in enhanced stereo viewing of content on the display 108.
In addition to and/or instead of the foregoing technique, the stereo controller 119, the display 108, and/or any other appropriate hardware/software associated with the computer system 10.0 may be equipped with functionality for adapting the display 108 in a way that enhances a viewing experience when display content is viewed utilizing the stereo glasses 111. Specifically, a duration of a vertical blanking interval associated with received display content may be increased for enhancing a viewing experience when the display content is viewed utilizing the stereo glasses 111.
In the context of the present description, the vertical blanking interval may refer to any time duration between the display of content intended for viewing by a right eye and a left eye. In one optional embodiment, such vertical blanking interval may refer to a time duration in which blank lines (and/or other information) are sent across an interface to the display 108. Still yet, in another embodiment, the vertical blanking interval may refer to a time when the content is held on the display 108 and no update occurs. By enlarging the vertical blanking interval (e.g. by sending more blank lines across the aforementioned interface, etc.), the content may be displayed longer for allowing the stereo glasses 111 to remain open longer, thus increasing the apparent brightness to the user, in accordance with one optional embodiment.
More illustrative information will now be set forth regarding various optional architectures and features with which the foregoing functionality may or may not be implemented, per the desires of the user. It should be strongly noted that the following information is set forth for illustrative purposes and should not be construed as limiting in any manner. Any of the following features may be optionally incorporated with or without the exclusion of other features described.
For example, in one embodiment, the architecture and/or functionality of the various following figures may be implemented in the context of the host processor 101, graphics processor 106, a chipset (i.e. a group of integrated circuits designed to work and sold as a unit for performing related functions, etc.), and/or any other integrated circuit for that matter. Still yet, the architecture and/or functionality of the various following figures may be implemented in the context of a general computer system, a circuit board system, a game console system dedicated for entertainment purposes, an application-specific system, and/or any other desired system.
Figure 2 shows an exemplary timing 200 for enhancing a viewing experience when display content is viewed utilizing stereo glasses, in accordance with one embodiment. As an option, the present timing 200 may be implemented in the context of the computer system 100 of Figure 1B. Of course, however, the timing 200 may be used in any desired 5 environment. Still yet, the above definitions apply during the following description.
As shown, a display (e.g. display 108 of Figure 1, etc.) receives display content over a communication medium 201, such as a digital video interface (DVI) or video graphics array (VGA) cable, or any other medium capable of communicating the display 10 content, for that matter. In the context of the present description, such display content may include pixel-related information, image(s), and/or any other content or component thereof at any stage of processing capable of being displayed. In Figure2, a first left image Ll intended for viewing only by a left eye is shown to be sent over the communication medium 201 first. Thereafter, there is a pause in transmission, namely the vertical blanking interval'VBI. Next, a first right image Rl intended for only the right eye is then sent, and so forth.
As further shown, a right eye shutter and left eye shutter of stereo glasses (e.g.
stereo glasses 111, etc.) are controlled independently. In one embodiment, this may be accomplished utilizing a right eye control signal 206 for controlling the right eye shutter and a left control signal 208 for controlling the left eye shutter.
Specifically, the left eye shutter of the stereo glasses may be controlled such that the left eye shutter is in an open orientation at least for the duration of a first set of vertical blanking intervals 210, which follow receipt of display content intended for a left eye. In a similar manner, the right eye shutter of the stereo glasses may be controlled such that the right eye shutter is in the open orientation at least for the duration of a second set of vertical blanking intervals 213, which follow receipt of display content intended for a right eye. As shown, the first set of vertical blanking intervals 210 altemate with the second set of vertical blanking intervals 213, and they both occur between periods during which right eye content or left eye content is received from a content source.
In other embodiments (e.g. particularly in the case of wireless stereo glasses, etc.), the right eye shutter and the left eye shutter of the stereo glasses may be controlled utilizing a plurality of signals (e.g. codes, etc.). In such embodiments, one of such signals may be specifically allocated to cause the right eye shutter and the left eye shutter to simultaneously transition to and remain in the closed orientation.
Of course, separate signals may be used to close only the right eye shutter, the left eye shutter, etc.
To this end, a right eye shutter and left eye shutter of the stereo glasses may be controlled such that the right eye shutter and left eye shutter simultaneously remain in the closed orientation for a predetermined amount of time 209. As shown, such predetermined amount of time 209 represents a time during which the first left image Li has been partially overwritten by the first right image Rl. Thus, by ensuring that both the right eye shutter and left eye shutter of the stereo glasses simultaneously remain in the closed orientation during such time, the right eye content is prevented from reaching the left eye and the left eye content is prevented from reaching the right eye.
In the embodiment illustrated in Figure 2, the left eye shutter of the stereo glasses may be controlled such that the left eye shutter is in the open orientation only for the duration of the first set of vertical blanking intervals 210 (i.e. when only left eye content is being displayed, etc.). Further, the right eye shutter of the stereo glasses may be controlled such that the right eye shutter is in the open orientation only for the duration of the second set of vertical blanking intervals 213 (i.e. when only right eye content is being displayed, etc.). Thus, such predetermined amount of time 209 represents an entire time frame in which the first left image Li has been partially overwritten by the first right image Rl, and so on.
In other embodiments, however, the right eye shutter and the left eye shutter of the stereo glasses may be controlled such that the shutters each remain in the open orientation for an adjustable time period (with the predetermined amount of time 209 being decreased) to permit additional light through each respective shutter.
See time period 210, for example. To this end, the eyes of the user may be subjected to more light, thereby enhancing a perceived brightness of an image.
In other words, the left eye shutter of the stereo glasses may be controlled such that the left eye shutter is in the open orientation for a period that exceeds the duration of the first set of vertical blanking intervals 210. Similarly, the right eye shutter of the stereo glasses may be controlled such that the right eye shutter is in the open orientation for a period that exceeds the duration of the second set of vertical blanking intervals 213. Of course, one trade off associated with such option involves increasing the duration in which each eye receives content, at least in part, not intended for such eye.
Specifically, at least a portion of left eye content may be displayed when the right eye shutter is in the open orientation, and visa-versa.
As set forth during reference to Figure 1B, the duration of the vertical blanking interval VBI associated with received display content may be increased for enhancing a viewing experience when the display content is viewed utilizing the stereo glasses. By increasing the duration of the vertical blanking interval VBI, the time period is increased during which each eye receives content wholly intended for such eye, resulting in enhanced stereo viewing of content on the display.
More illustrative information will now be set forth regarding various optional architectures and features with which the foregoing functionality may or may not be implemented, per the desires of the user. It should be strongly noted that the following information is set forth for illustrative purposes and should not be construed as limiting in any manner. Any of the following features may be optionally incorporated with or without the exclusion of other features described.
For example, in one embodiment, the architecture and/or functionality of the various following figures may be implemented in the context of the host processor 101, graphics processor 106, a chipset (i.e. a group of integrated circuits designed to work and sold as a unit for performing related functions, etc.), and/or any other integrated circuit for that matter. Still yet, the architecture and/or functionality of the various following figures may be implemented in the context of a general computer system, a circuit board system, a game console system dedicated for entertainment purposes, an application-specific system, and/or any other desired system.
Figure 2 shows an exemplary timing 200 for enhancing a viewing experience when display content is viewed utilizing stereo glasses, in accordance with one embodiment. As an option, the present timing 200 may be implemented in the context of the computer system 100 of Figure 1B. Of course, however, the timing 200 may be used in any desired 5 environment. Still yet, the above definitions apply during the following description.
As shown, a display (e.g. display 108 of Figure 1, etc.) receives display content over a communication medium 201, such as a digital video interface (DVI) or video graphics array (VGA) cable, or any other medium capable of communicating the display 10 content, for that matter. In the context of the present description, such display content may include pixel-related information, image(s), and/or any other content or component thereof at any stage of processing capable of being displayed. In Figure2, a first left image Ll intended for viewing only by a left eye is shown to be sent over the communication medium 201 first. Thereafter, there is a pause in transmission, namely the vertical blanking interval'VBI. Next, a first right image Rl intended for only the right eye is then sent, and so forth.
As further shown, a right eye shutter and left eye shutter of stereo glasses (e.g.
stereo glasses 111, etc.) are controlled independently. In one embodiment, this may be accomplished utilizing a right eye control signal 206 for controlling the right eye shutter and a left control signal 208 for controlling the left eye shutter.
Specifically, the left eye shutter of the stereo glasses may be controlled such that the left eye shutter is in an open orientation at least for the duration of a first set of vertical blanking intervals 210, which follow receipt of display content intended for a left eye. In a similar manner, the right eye shutter of the stereo glasses may be controlled such that the right eye shutter is in the open orientation at least for the duration of a second set of vertical blanking intervals 213, which follow receipt of display content intended for a right eye. As shown, the first set of vertical blanking intervals 210 altemate with the second set of vertical blanking intervals 213, and they both occur between periods during which right eye content or left eye content is received from a content source.
In other embodiments (e.g. particularly in the case of wireless stereo glasses, etc.), the right eye shutter and the left eye shutter of the stereo glasses may be controlled utilizing a plurality of signals (e.g. codes, etc.). In such embodiments, one of such signals may be specifically allocated to cause the right eye shutter and the left eye shutter to simultaneously transition to and remain in the closed orientation.
Of course, separate signals may be used to close only the right eye shutter, the left eye shutter, etc.
To this end, a right eye shutter and left eye shutter of the stereo glasses may be controlled such that the right eye shutter and left eye shutter simultaneously remain in the closed orientation for a predetermined amount of time 209. As shown, such predetermined amount of time 209 represents a time during which the first left image Li has been partially overwritten by the first right image Rl. Thus, by ensuring that both the right eye shutter and left eye shutter of the stereo glasses simultaneously remain in the closed orientation during such time, the right eye content is prevented from reaching the left eye and the left eye content is prevented from reaching the right eye.
In the embodiment illustrated in Figure 2, the left eye shutter of the stereo glasses may be controlled such that the left eye shutter is in the open orientation only for the duration of the first set of vertical blanking intervals 210 (i.e. when only left eye content is being displayed, etc.). Further, the right eye shutter of the stereo glasses may be controlled such that the right eye shutter is in the open orientation only for the duration of the second set of vertical blanking intervals 213 (i.e. when only right eye content is being displayed, etc.). Thus, such predetermined amount of time 209 represents an entire time frame in which the first left image Li has been partially overwritten by the first right image Rl, and so on.
In other embodiments, however, the right eye shutter and the left eye shutter of the stereo glasses may be controlled such that the shutters each remain in the open orientation for an adjustable time period (with the predetermined amount of time 209 being decreased) to permit additional light through each respective shutter.
See time period 210, for example. To this end, the eyes of the user may be subjected to more light, thereby enhancing a perceived brightness of an image.
In other words, the left eye shutter of the stereo glasses may be controlled such that the left eye shutter is in the open orientation for a period that exceeds the duration of the first set of vertical blanking intervals 210. Similarly, the right eye shutter of the stereo glasses may be controlled such that the right eye shutter is in the open orientation for a period that exceeds the duration of the second set of vertical blanking intervals 213. Of course, one trade off associated with such option involves increasing the duration in which each eye receives content, at least in part, not intended for such eye.
Specifically, at least a portion of left eye content may be displayed when the right eye shutter is in the open orientation, and visa-versa.
As set forth during reference to Figure 1B, the duration of the vertical blanking interval VBI associated with received display content may be increased for enhancing a viewing experience when the display content is viewed utilizing the stereo glasses. By increasing the duration of the vertical blanking interval VBI, the time period is increased during which each eye receives content wholly intended for such eye, resulting in enhanced stereo viewing of content on the display.
It should be noted that the vertical blanking interval VBI may be increased in any desired manner. For example, before a content source sends data to the display, appropriate display timing specifications may be consulted. This may be accomplished using any desired interface [e.g. extended display data channel/extended display identification data (E-DDC/EDID), video electronics standards organization (VESA) interface, etc.] using the cornrnunication medium 201. To this end, the content source may choose one of many established/standard timings and/or tailored timings to send the content, where such timing allows for vertical blanking interval VBI
augmentation.
Such timings may further be provided/maintained by the manufacturer of the stereo glasses, graphics processor that drives the images using configuration files, etc. More information regarding various exemplary techniques that may be specifically used to increase the duration of the vertical blanking interval VBI in such manner will be set forth in greater detail during reference to subsequent figures.
Figure 3 shows a method 300 for increasing a vertical blanking interval for enhancing a viewing experience when display content is viewed utilizing stereo glasses, in accordance with one embodiment. As an option, the present method 300 may be carried out in the context of the computer system 100 of Figure 1B and/or the timing 200 of Figure 2.
Of course, however, the method 300 may be implemented in any desired environment.
Again, the definitions introduced hereinabove apply during the following description.
As shown, a display (e.g. display 108 of Figure 1, etc.) is driven at a native resolution. See operation 303. Such native resolution may refer to the resolution at which the display is designed to display content without conversion. The native resolution is typically based on an actual number of cells in the display.
Next, a rate at which pixels are sent to the display is increased, utilizing a pixel clock. Specifically, in one embodiment, pixels may be transmitted for display purposes using a highest possible pixel clock. See operation 304. In one exemplary embodiment, such maximum pixel clock may include that which a standard governing a connection cable supports (e.g. 165 Mpix/s for a single link DVI cable, 330 Mpix/s for a dual link DVI cable, etc.). In another embodiment, the foregoing highest possible pixel clock may include a pixel clock limit indicated by the display in related EDID
information.
Such limit may be the same as, or lower than a DVI cable clock limit.
Still yet, a horizontal blanking interval associated with the display is decreased, as indicated in operation 306. In the context of the present description, the horizontal blanking interval refers to an interval during which processing of successive lines returns from right to left. In one embodiment, the horizontal blanking interval may be chosen to be as small as possible. By maximizing the pixel clock and minimizing the horizontal blanking interval in the foregoing manner, the vertical blanking interval duration may be maximized. The manner in which this is accomplished will become more readily apparent during the description of an example to be set forth later.
An alternate technique for increasing the vertical blanking interval (besides increasing the pixel clock, etc.) may involve the reduction of a display refresh rate. For example, a display designed for a 100 Hz refresh rate with a low vertical blanking interval may be used at 85 Hz with a 19% vertical blanking interval, in one illustrative embodiment.
In various embodiments, the display may be specifically equipped with a plurality of additional timings for increasing the duration of the vertical blanking interval. While the display may be equipped with the additional timings in any one of a variety of ways, it may be accomplished, in one embodiment, by including the same in software stored in memory of the display. In use, such additional timings may each be adapted for either decreasing a horizontal blanking interval associated with the display and/or increasing a rate at which pixels are sent to the display.
Table 1 illustrates one exemplary timing that may be added in the foregoing 5 manner. Of course, such timing is set forth for illustrative purposes only and should not be construed as limiting in any manner. For example, in a VGA environment, such a table may be updated in association with a display while, in a DVI
environment, no such change may be necessary.
10 Table I
. _............ _Tuns~gName 1280x1024 75S _ CoYY -3ted; - ...__.._.--=_____ _ _. -~
~
___..........._............__........_,_...._.................. _-........
...... ....... _....__., ..._...... ................ .
Hor Pixels 1280 _.__.-_...._........._.._.._______._....---.--..._____.___~ ~.-...._._._ Ver Pixels ~_ 1024 _ Hor Frequency ~ 105.00 kHz Ver Frequency 75.00 14z Pixel Clock 139.44 NIHz ........ ....... .._.....___ HBlank 3.6% ofHtotal VB)ank^ 26.9% of Vtotal Hor Total Time 1328 Pixels Hor Addr Time 1280 Pixels _..
_ ........_..._.._......,__... _..__._ _... _ .- ..._.._............
Hor Blank Start { 1280 PixeLs Hor Blank Turie f ~~ 48 PbceLs ...._..._...-.......____..,..._. ...__...._._....__.......__..._._.....
..._..,-._......._...._.........
Hor Sync...._.... Tmze ~ 16 Pixels Hor Sync Start ~ 1288 PixeLs ._..______._.v....._..._..._...__.__._...._.,._..__._......_ .....
.........__.._._..._..._ H Right Border 0 Pixels H Front Porch Pixels ..._ _ _ ~.. _ ........-.........._ _ _ _ ._ _ _.____.... ._.._..___ _..
Hor Sync Time 16 Pixels H Back Porch 24 Pixels H Left Border 0 Pixels _._..__...._......._............-..._._............_.,._......_......_._........._...._._ ........
Ver Total T"mie 1400 Lines ._ _____...~ . ..__---__......_._..._.__....____.
Ver Addr Time 1024 Lines .........._...._...._._...___ ............._._ .._____..r_..._.._..._..
_........ ........_................_.
Ver Blank Start 1024 Lines Ver Blank T'mm 376 Lines Ver Sync Start 1040 Lines ..........................
V Bottom Bord 0 Lines V Front Porch 16 Lsnes _.. -...__..___..-__._.._.___ _._.,._.__,..._....____......___. ....___ .................__....
Ver Sync Time ~ 1 12 Lines V Back Porch 248 L'snes ............._..,....._____._.__,_.._...___..__.._..__..,....._..~..__ -__.._.,....-.........._._ V Top Border 0 Lines It should be noted that the aforementioned horizontal blanking interval is less important in the context of LCD, DLP-type displays, etc., thereby providing an opportunity for sacrificing the same to extend the vertical blanking interval.
In particular, in CRT-type displays, such horizontal blanking is typically augmented (e.g.
in the range of 15-25%, etc.) to allow re-tracing to a beginning of a particular scan line.
For example, a CRT-type display may display a first line of X number of pixels after which a horizontal blanking interval may be used to provide time for the display to re-trace to the beginning of the scan line so that another line of X number of pixels may be displayed, and so forth.
Equation 41 illustrates the interrelationship between the horizontal blanking interval and the vertical blanking interval.
Equation #1 fpiX = (pixel sX-direction + HBI) * (pixels_Y-direction + VBI) * fõ
where fpiX = pixel rate HBI =# of pixels in horizontal blanking interval pixels_X-direction =# of pixels in X-direction for predetermined resolution VBI = # of pixels associated in vertical blanking interval pixels Y-direction = # of pixels in Y-direction for predetermined resolution fV = refresh rate As shown, a horizontal blanking interval may be sacrificed for an extended vertical blanking interval (particularly with LCD, DLP-type displays, etc.), without necessarily affecting the pixel rate and the refresh rate.
Thus, in one embodiment, the foregoing timing of Table 1 may provide an alternate 1280x1024 75Hz stereo compatible timing specification that may co-exist with existing VESA 1280x1024 75Hz timing specifications. In such exemplary embodiment, the existing 1280x1024 75Hz VESA timing employs 24.2% of available time for horizontal blanking and 3.9% for vertical blanking, whereas the stereo compatible timing employs close to 27% of available time for vertical blanking and less than 4% for horizontal blanking.
Figure 4 shows a method 400 for increasing a vertical blanking interval for enhancing a viewing experience when display content is viewed utilizing stereo glasses, in accordance with another embodiment. As an option, the present method 400 may be carried out in the context of the computer system 100 of Figure 1B and/or the timing 200 of Figure 2. Of course, however, the method 400 may be implemented in any desired environment.
Yet again, the definitions introduced hereinabove apply during the following description.
As shown, a display (e.g. display 108 of Figure 1, etc.) may be set at a lower resolution during use. See operation 402. Still yet, the display may be run at a predetermined speed for extending the vertical blanking interval. Note operation 404.
An example of such technique is set forth below.
Specifically, in one optional embodiment, a display may be provided that is designed for a 1600x1200 resolution, but is used at a lower resolution such as 1024x768. If such display supports the 1600x1200 resolution at 60 Hz (in accordance with the VESA standard), it is likely capable of 162 Mpix/s (in any resolution). Thus, by sending the display 1024*768 pixels with a 162 MHz pixel clock, an entire image (assuming 100 pixel horizontal blanking) may be sent in 5.33 ms (1144*768*6.173e-9).
Since images at 60 Hz are received every 16.66 msec, the vertical blanking interval may thus be extended to 11.33 msec (16.66 - 5.33). To this end, each shutter of a pair of stereo glasses (e.g. stereo glasses 111 of Figure 1, etc.) may remain in an open orientation for 11.33 msec out of every 33.33 msec, thereby providing a duty cycle of 34% (out of a theoretical maximum of 50%).
In one embodiment, the foregoing functionality of Figures 3-4 may optionally be provided by utilizing a controller (e.g. stereo controller 119 of Figure 1, etc.) coupled to the display. In the context of the present embodiment, such controller may be employed for tapping signals in a cable feeding the display to retrieve triggering information for the glasses (e.g. stereo glasses 111 of Figure 1, etc.). Such triggering infornnation may be derived from a vertical synchronization in the cable, along with left/right eye shutter identifying information associated with the content (e.g. white line codes, etc.) or software-provided control signals (e.g. DDC signal, etc.).
In another embodiment, the method 300 of Figure 3 and the method 400 of Figure 4 may be provided by interrupting two I2CO interface wires that typically carry EDID standard information. In an embodiment where the controller takes the form of a microcontroller, such hardware may read original display EDID information and present modified EDID information to the associated computer system. In such embodiment, drivers that use the EDID information to compute timing settings need not necessarily be modified.
Figure 5 shows an exemplary timing 500 for use when display content is viewed utilizing stereo glasses and an LCD or the like, in accordance with yet another embodiment. As an option, the present timing 500 may be implemented in the context of the computer system 100 of Figure 1B and/or the timing 200 of Figure 2. Of course, however, the timing 500 may be used in any desired environment.
In the present embodiment, display content sent to a display (e.g. display 108 of Figure 1, etc.) in operation 502 may, in turn, be received and buffered in the manner shown in operation 504. As an option, such buffering may be carried out utilizing buffer memory (e.g. DRAM, etc.) resident in the display or in any other location, for that matter.
Once the display content for a particular eye is received and buffered in operation 504, it may be sent from the buffer to the display, as further indicated in operation 504. To this end, the display may paint the particular display content currently being sent from the buffer. Note operation 506. Note that, after the display content for a particular eye has been sent and painted, such display content may be held in the manner shown.
By this design, the left and right eye shutter of a pair of stereo glasses (e.g. stereo glasses 111 of Figure 1, etc.) may be opened during the time period when the corresponding display content is being held. Note operations 508 and 510, respectively.
By buffering the display content in operation 504 in the foregoing manner, any lengthy time necessary for the display content to cross the cable to the buffer is available, thus keeping the pixel clock low. Further, when the display content is buffered and ready for display, the display content may be transferred rapidly to the display, so that it may be held and displayed to a respective eye for a longer time. Thus, a stable time of the display content may be increased by buffering the display content in the foregoing manner, while avoiding a need to increase the vertical blanking interval on a display interface cable, etc.
In summary, display content received from a content source may be buffered for a predetermined eye until a full image of display content for such eye is available.
While such buffering is taking place, previous display content for the other eye may be displayed. When such buffering is complete and the image is stable, the full image of 5 display content for such eye may be transferred from the buffer to the display for the duration of the vertical blanking interval or longer. Further, such transfer may be carried out at a maximum pixel rate that the display is capable of handling internally so that the vertical blanking interval is capable of being maximized. If such interval is too short, additional buffering that can temporarily receive and store the next incoming 10 image may be employed. To this end, a duration in which the eye shutters may be maintained in the open orientation may be extended (and hence maximize screen brightness, etc.).
Strictly as an option, a backlight of the display may be activated only when at 15 least one of the shutters is in theopen orientation. This feature may be applied in the context of flashing or scrolling backlights. In the case of a flashing backlight, the backlight may be flashed for 30% of the time (for example), but may also use a light with triple the magnitude, in order to provide normal light output. To this end, the present feature may be used to avoid wasting light (and associated power) when the 20 shutters are closed, and further avoid excessive heat.
While various embodiments have been described above, it should be understood that they have been presented by way of example only, and not limitation. For example, any of the network elements may employ any of the desired functionality set forth hereinabove. Thus, the breadth and scope of a preferred embodiment should not be limited by any of the above-described exemplary embodiments, but should be defined only in accordance with the following claims and their equivalents.
augmentation.
Such timings may further be provided/maintained by the manufacturer of the stereo glasses, graphics processor that drives the images using configuration files, etc. More information regarding various exemplary techniques that may be specifically used to increase the duration of the vertical blanking interval VBI in such manner will be set forth in greater detail during reference to subsequent figures.
Figure 3 shows a method 300 for increasing a vertical blanking interval for enhancing a viewing experience when display content is viewed utilizing stereo glasses, in accordance with one embodiment. As an option, the present method 300 may be carried out in the context of the computer system 100 of Figure 1B and/or the timing 200 of Figure 2.
Of course, however, the method 300 may be implemented in any desired environment.
Again, the definitions introduced hereinabove apply during the following description.
As shown, a display (e.g. display 108 of Figure 1, etc.) is driven at a native resolution. See operation 303. Such native resolution may refer to the resolution at which the display is designed to display content without conversion. The native resolution is typically based on an actual number of cells in the display.
Next, a rate at which pixels are sent to the display is increased, utilizing a pixel clock. Specifically, in one embodiment, pixels may be transmitted for display purposes using a highest possible pixel clock. See operation 304. In one exemplary embodiment, such maximum pixel clock may include that which a standard governing a connection cable supports (e.g. 165 Mpix/s for a single link DVI cable, 330 Mpix/s for a dual link DVI cable, etc.). In another embodiment, the foregoing highest possible pixel clock may include a pixel clock limit indicated by the display in related EDID
information.
Such limit may be the same as, or lower than a DVI cable clock limit.
Still yet, a horizontal blanking interval associated with the display is decreased, as indicated in operation 306. In the context of the present description, the horizontal blanking interval refers to an interval during which processing of successive lines returns from right to left. In one embodiment, the horizontal blanking interval may be chosen to be as small as possible. By maximizing the pixel clock and minimizing the horizontal blanking interval in the foregoing manner, the vertical blanking interval duration may be maximized. The manner in which this is accomplished will become more readily apparent during the description of an example to be set forth later.
An alternate technique for increasing the vertical blanking interval (besides increasing the pixel clock, etc.) may involve the reduction of a display refresh rate. For example, a display designed for a 100 Hz refresh rate with a low vertical blanking interval may be used at 85 Hz with a 19% vertical blanking interval, in one illustrative embodiment.
In various embodiments, the display may be specifically equipped with a plurality of additional timings for increasing the duration of the vertical blanking interval. While the display may be equipped with the additional timings in any one of a variety of ways, it may be accomplished, in one embodiment, by including the same in software stored in memory of the display. In use, such additional timings may each be adapted for either decreasing a horizontal blanking interval associated with the display and/or increasing a rate at which pixels are sent to the display.
Table 1 illustrates one exemplary timing that may be added in the foregoing 5 manner. Of course, such timing is set forth for illustrative purposes only and should not be construed as limiting in any manner. For example, in a VGA environment, such a table may be updated in association with a display while, in a DVI
environment, no such change may be necessary.
10 Table I
. _............ _Tuns~gName 1280x1024 75S _ CoYY -3ted; - ...__.._.--=_____ _ _. -~
~
___..........._............__........_,_...._.................. _-........
...... ....... _....__., ..._...... ................ .
Hor Pixels 1280 _.__.-_...._........._.._.._______._....---.--..._____.___~ ~.-...._._._ Ver Pixels ~_ 1024 _ Hor Frequency ~ 105.00 kHz Ver Frequency 75.00 14z Pixel Clock 139.44 NIHz ........ ....... .._.....___ HBlank 3.6% ofHtotal VB)ank^ 26.9% of Vtotal Hor Total Time 1328 Pixels Hor Addr Time 1280 Pixels _..
_ ........_..._.._......,__... _..__._ _... _ .- ..._.._............
Hor Blank Start { 1280 PixeLs Hor Blank Turie f ~~ 48 PbceLs ...._..._...-.......____..,..._. ...__...._._....__.......__..._._.....
..._..,-._......._...._.........
Hor Sync...._.... Tmze ~ 16 Pixels Hor Sync Start ~ 1288 PixeLs ._..______._.v....._..._..._...__.__._...._.,._..__._......_ .....
.........__.._._..._..._ H Right Border 0 Pixels H Front Porch Pixels ..._ _ _ ~.. _ ........-.........._ _ _ _ ._ _ _.____.... ._.._..___ _..
Hor Sync Time 16 Pixels H Back Porch 24 Pixels H Left Border 0 Pixels _._..__...._......._............-..._._............_.,._......_......_._........._...._._ ........
Ver Total T"mie 1400 Lines ._ _____...~ . ..__---__......_._..._.__....____.
Ver Addr Time 1024 Lines .........._...._...._._...___ ............._._ .._____..r_..._.._..._..
_........ ........_................_.
Ver Blank Start 1024 Lines Ver Blank T'mm 376 Lines Ver Sync Start 1040 Lines ..........................
V Bottom Bord 0 Lines V Front Porch 16 Lsnes _.. -...__..___..-__._.._.___ _._.,._.__,..._....____......___. ....___ .................__....
Ver Sync Time ~ 1 12 Lines V Back Porch 248 L'snes ............._..,....._____._.__,_.._...___..__.._..__..,....._..~..__ -__.._.,....-.........._._ V Top Border 0 Lines It should be noted that the aforementioned horizontal blanking interval is less important in the context of LCD, DLP-type displays, etc., thereby providing an opportunity for sacrificing the same to extend the vertical blanking interval.
In particular, in CRT-type displays, such horizontal blanking is typically augmented (e.g.
in the range of 15-25%, etc.) to allow re-tracing to a beginning of a particular scan line.
For example, a CRT-type display may display a first line of X number of pixels after which a horizontal blanking interval may be used to provide time for the display to re-trace to the beginning of the scan line so that another line of X number of pixels may be displayed, and so forth.
Equation 41 illustrates the interrelationship between the horizontal blanking interval and the vertical blanking interval.
Equation #1 fpiX = (pixel sX-direction + HBI) * (pixels_Y-direction + VBI) * fõ
where fpiX = pixel rate HBI =# of pixels in horizontal blanking interval pixels_X-direction =# of pixels in X-direction for predetermined resolution VBI = # of pixels associated in vertical blanking interval pixels Y-direction = # of pixels in Y-direction for predetermined resolution fV = refresh rate As shown, a horizontal blanking interval may be sacrificed for an extended vertical blanking interval (particularly with LCD, DLP-type displays, etc.), without necessarily affecting the pixel rate and the refresh rate.
Thus, in one embodiment, the foregoing timing of Table 1 may provide an alternate 1280x1024 75Hz stereo compatible timing specification that may co-exist with existing VESA 1280x1024 75Hz timing specifications. In such exemplary embodiment, the existing 1280x1024 75Hz VESA timing employs 24.2% of available time for horizontal blanking and 3.9% for vertical blanking, whereas the stereo compatible timing employs close to 27% of available time for vertical blanking and less than 4% for horizontal blanking.
Figure 4 shows a method 400 for increasing a vertical blanking interval for enhancing a viewing experience when display content is viewed utilizing stereo glasses, in accordance with another embodiment. As an option, the present method 400 may be carried out in the context of the computer system 100 of Figure 1B and/or the timing 200 of Figure 2. Of course, however, the method 400 may be implemented in any desired environment.
Yet again, the definitions introduced hereinabove apply during the following description.
As shown, a display (e.g. display 108 of Figure 1, etc.) may be set at a lower resolution during use. See operation 402. Still yet, the display may be run at a predetermined speed for extending the vertical blanking interval. Note operation 404.
An example of such technique is set forth below.
Specifically, in one optional embodiment, a display may be provided that is designed for a 1600x1200 resolution, but is used at a lower resolution such as 1024x768. If such display supports the 1600x1200 resolution at 60 Hz (in accordance with the VESA standard), it is likely capable of 162 Mpix/s (in any resolution). Thus, by sending the display 1024*768 pixels with a 162 MHz pixel clock, an entire image (assuming 100 pixel horizontal blanking) may be sent in 5.33 ms (1144*768*6.173e-9).
Since images at 60 Hz are received every 16.66 msec, the vertical blanking interval may thus be extended to 11.33 msec (16.66 - 5.33). To this end, each shutter of a pair of stereo glasses (e.g. stereo glasses 111 of Figure 1, etc.) may remain in an open orientation for 11.33 msec out of every 33.33 msec, thereby providing a duty cycle of 34% (out of a theoretical maximum of 50%).
In one embodiment, the foregoing functionality of Figures 3-4 may optionally be provided by utilizing a controller (e.g. stereo controller 119 of Figure 1, etc.) coupled to the display. In the context of the present embodiment, such controller may be employed for tapping signals in a cable feeding the display to retrieve triggering information for the glasses (e.g. stereo glasses 111 of Figure 1, etc.). Such triggering infornnation may be derived from a vertical synchronization in the cable, along with left/right eye shutter identifying information associated with the content (e.g. white line codes, etc.) or software-provided control signals (e.g. DDC signal, etc.).
In another embodiment, the method 300 of Figure 3 and the method 400 of Figure 4 may be provided by interrupting two I2CO interface wires that typically carry EDID standard information. In an embodiment where the controller takes the form of a microcontroller, such hardware may read original display EDID information and present modified EDID information to the associated computer system. In such embodiment, drivers that use the EDID information to compute timing settings need not necessarily be modified.
Figure 5 shows an exemplary timing 500 for use when display content is viewed utilizing stereo glasses and an LCD or the like, in accordance with yet another embodiment. As an option, the present timing 500 may be implemented in the context of the computer system 100 of Figure 1B and/or the timing 200 of Figure 2. Of course, however, the timing 500 may be used in any desired environment.
In the present embodiment, display content sent to a display (e.g. display 108 of Figure 1, etc.) in operation 502 may, in turn, be received and buffered in the manner shown in operation 504. As an option, such buffering may be carried out utilizing buffer memory (e.g. DRAM, etc.) resident in the display or in any other location, for that matter.
Once the display content for a particular eye is received and buffered in operation 504, it may be sent from the buffer to the display, as further indicated in operation 504. To this end, the display may paint the particular display content currently being sent from the buffer. Note operation 506. Note that, after the display content for a particular eye has been sent and painted, such display content may be held in the manner shown.
By this design, the left and right eye shutter of a pair of stereo glasses (e.g. stereo glasses 111 of Figure 1, etc.) may be opened during the time period when the corresponding display content is being held. Note operations 508 and 510, respectively.
By buffering the display content in operation 504 in the foregoing manner, any lengthy time necessary for the display content to cross the cable to the buffer is available, thus keeping the pixel clock low. Further, when the display content is buffered and ready for display, the display content may be transferred rapidly to the display, so that it may be held and displayed to a respective eye for a longer time. Thus, a stable time of the display content may be increased by buffering the display content in the foregoing manner, while avoiding a need to increase the vertical blanking interval on a display interface cable, etc.
In summary, display content received from a content source may be buffered for a predetermined eye until a full image of display content for such eye is available.
While such buffering is taking place, previous display content for the other eye may be displayed. When such buffering is complete and the image is stable, the full image of 5 display content for such eye may be transferred from the buffer to the display for the duration of the vertical blanking interval or longer. Further, such transfer may be carried out at a maximum pixel rate that the display is capable of handling internally so that the vertical blanking interval is capable of being maximized. If such interval is too short, additional buffering that can temporarily receive and store the next incoming 10 image may be employed. To this end, a duration in which the eye shutters may be maintained in the open orientation may be extended (and hence maximize screen brightness, etc.).
Strictly as an option, a backlight of the display may be activated only when at 15 least one of the shutters is in theopen orientation. This feature may be applied in the context of flashing or scrolling backlights. In the case of a flashing backlight, the backlight may be flashed for 30% of the time (for example), but may also use a light with triple the magnitude, in order to provide normal light output. To this end, the present feature may be used to avoid wasting light (and associated power) when the 20 shutters are closed, and further avoid excessive heat.
While various embodiments have been described above, it should be understood that they have been presented by way of example only, and not limitation. For example, any of the network elements may employ any of the desired functionality set forth hereinabove. Thus, the breadth and scope of a preferred embodiment should not be limited by any of the above-described exemplary embodiments, but should be defined only in accordance with the following claims and their equivalents.
Claims (40)
1. A method, comprising:
controlling a right eye shutter of stereo glasses to switch between a closed orientation and an open orientation; and controlling a left eye shutter of the stereo glasses to switch between the closed orientation and the open orientation;
wherein the right eye shutter and the left eye shutter of the stereo glasses are controlled such that the right eye shutter and the left eye shutter simultaneously remain in the closed orientation for a predetermined amount of time.
controlling a right eye shutter of stereo glasses to switch between a closed orientation and an open orientation; and controlling a left eye shutter of the stereo glasses to switch between the closed orientation and the open orientation;
wherein the right eye shutter and the left eye shutter of the stereo glasses are controlled such that the right eye shutter and the left eye shutter simultaneously remain in the closed orientation for a predetermined amount of time.
2. The method as recited in claim 1, wherein the right eye shutter and the left eye shutter of the stereo glasses are controlled independently.
3. The method as recited in claim 2, wherein the right eye shutter and the left eye shutter of the stereo glasses are controlled independently utilizing a first control signal for controlling the right eye shutter and a second control signal for controlling the left eye shutter.
4. The method as recited in claim 1, wherein the right eye shutter and the left eye shutter of the stereo glasses are controlled utilizing a plurality of signals, one of which causes the right eye shutter and the left eye shutter to simultaneously transition to and remain in the closed orientation.
5. The method as recited in claim 1, wherein the right eye shutter and the left eye shutter of the stereo glasses are controlled to permit stereo viewing of content on a display.
6. The method as recited in claim 5, wherein the display includes a liquid crystal display.
7. The method as recited in claim 1, wherein the right eye shutter of the stereo glasses is controlled such that the right eye shutter is in the open orientation at least for the duration of a first set of vertical blanking intervals, and the left eye shutter of the stereo glasses is controlled such that the left eye shutter is in the open orientation at least for the duration of a second set of vertical blanking intervals.
8. The method as recited in claim 7, wherein the right eye shutter of the stereo glasses is controlled such that the right eye shutter is in the open orientation for a period that exceeds the duration of the first set of vertical blanking intervals, and the left eye shutter of the stereo glasses is controlled such that the left eye shutter is in the open orientation for a period that exceeds the duration of the second set of vertical blanking intervals.
9. The method as recited in claim 7, wherein the right eye shutter of the stereo glasses is controlled such that the right eye shutter is in the open orientation only for the duration of the first set of vertical blanking intervals, and the left eye shutter of the stereo glasses is controlled such that the left eye shutter is in the open orientation only for the duration of the second set of vertical blanking intervals.
10. The method as recited in claim 7, wherein the first set of vertical blanking intervals alternate with the second set of vertical blanking intervals.
11. The method as recited in claim 7, wherein the first set of vertical blanking intervals and the second set of vertical blanking intervals occur between periods during which right eye content or left eye content is received from a content source.
12. The method as recited in claim 1, wherein a duration of the first set of vertical blanking intervals and the second set of vertical blanking intervals is increased.
13. The method as recited in claim 1, wherein the right eye shutter of the stereo glasses is controlled such that the right eye shutter is in the open orientation when only right eye content is being displayed, and the left eye shutter of the stereo glasses is controlled such that the left eye shutter is in the open orientation when only left eye content is being displayed.
14. The method as recited in claim 1, wherein the right eye shutter and the left eye shutter of the stereo glasses are controlled such that the right eye shutter and the left eye shutter each remain in the open orientation for an adjustable time period.
15. The method as recited in claim 14, wherein the adjustable time period is adjusted to permit additional light through the right eye shutter and the left eye shutter.
16. The method as recited in claim 1, wherein the controlling is performed utilizing a controller connected to a computer system via a universal serial bus interface.
17. The method as recited in claim 1, wherein a backlight of the display is activated only when one of the shutters is in the open orientation
18. A computer program product embodied on a computer readable medium, comprising:
computer code for controlling a right eye shutter of stereo glasses to switch between a closed orientation and an open orientation; and computer code for controlling a left eye shutter of the stereo glasses to switch between the closed orientation and the open orientation;
wherein the right eye shutter and the left eye shutter of the stereo glasses are controlled such that the right eye shutter and the left eye shutter simultaneously remain in the closed orientation for a predetermined amount of time.
computer code for controlling a right eye shutter of stereo glasses to switch between a closed orientation and an open orientation; and computer code for controlling a left eye shutter of the stereo glasses to switch between the closed orientation and the open orientation;
wherein the right eye shutter and the left eye shutter of the stereo glasses are controlled such that the right eye shutter and the left eye shutter simultaneously remain in the closed orientation for a predetermined amount of time.
19. A system, comprising a graphics processor; and a controller in communication with the graphics processor, the controller for controlling a right eye shutter and a left eye shutter of stereo glasses to switch between a closed orientation and an open orientation;
wherein the right eye shutter and the left eye shutter of the stereo glasses are controlled such that the right eye shutter and the left eye shutter simultaneously remain in the closed orientation for a predetermined amount of time.
wherein the right eye shutter and the left eye shutter of the stereo glasses are controlled such that the right eye shutter and the left eye shutter simultaneously remain in the closed orientation for a predetermined amount of time.
20. The system as recited in claim 19, wherein the graphics processor is in communication with a display and a central processing unit via a bus.
21. A method, comprising:
receiving display content for being outputted utilizing a display; and increasing a duration of a vertical blanking interval associated with the display content for enhancing a viewing experience when the display content is viewed utilizing stereo glasses.
receiving display content for being outputted utilizing a display; and increasing a duration of a vertical blanking interval associated with the display content for enhancing a viewing experience when the display content is viewed utilizing stereo glasses.
22. The method as recited in claim 21, wherein the duration of the vertical blanking interval is increased by decreasing a horizontal blanking interval associated with the display.
23. The method as recited in claim 21, wherein the duration of the vertical blanking interval is increased by increasing a rate at which pixels are sent to the display.
24. The method as recited in claim 21, wherein the duration of the vertical blanking interval is increased by reducing a refresh rate of the display.
25. The method as recited in claim 21, wherein the display is driven at a native resolution.
26. The method as recited in claim 21, wherein the display is equipped with a plurality of additional timings for increasing the duration of the vertical blanking interval.
27. The method as recited in claim 26, wherein the additional timings are each adapted for decreasing a horizontal blanking interval associated with the display.
28. The method as recited in claim 26, wherein the additional timings are each adapted for increasing a rate at which pixels are sent to the display.
29. The method as recited in claim 26, wherein the additional timings are each adapted for reducing a refresh rate of the display.
30. The method as recited in claim 26, wherein the display is equipped with a plurality of additional timings by including the additional timings in software stored in memory of the display.
31. The method as recited in claim 21, wherein the duration of the vertical blanking interval is increased by decreasing a resolution associated with the display.
32. The method as recited in claim 31, wherein a stable time of the display content is increased by buffering the display content, while avoiding a need to increase the vertical blanking interval on a display interface cable.
33. The method as recited in claim 32, wherein the display content associated with a predetermined eye is buffered until a full image of display content for the predetermined eye is buffered, after which the full image of display content for the predetermined eye is then transmitted to the display at a maximum pixel rate that the display is capable of handling internally so that the vertical blanking interval is capable of being maximized.
34. The method as recited in claim 32, wherein dynamic random access memory is utilized for the buffering.
35. The method as recited in claim 32, wherein the display content for the predetermined eye is buffered while previous display content for another predetermined eye is displayed.
36. The method as recited in claim 21, wherein the display includes a liquid crystal display, and a backlight of the liquid crystal display is activated during the vertical blanking interval.
37. The method as recited in claim 21, wherein the duration of the vertical blanking interval is increased utilizing a control component in communication with a graphics processor and the stereo glasses.
38. A computer program product embodied on a computer readable medium, comprising:
computer code for receiving display content for being outputted utilizing a display; and computer code for increasing a duration of a vertical blanking interval associated with the display content for enhancing a viewing experience when the display content is viewed utilizing stereo glasses.
computer code for receiving display content for being outputted utilizing a display; and computer code for increasing a duration of a vertical blanking interval associated with the display content for enhancing a viewing experience when the display content is viewed utilizing stereo glasses.
39. A system, comprising a display;
a graphics processor; and a control component in communication with at least one of the graphics processor and the display, the control component for increasing a duration of a vertical blanking interval associated with display content for enhancing a viewing experience when the display content is viewed utilizing stereo glasses.
a graphics processor; and a control component in communication with at least one of the graphics processor and the display, the control component for increasing a duration of a vertical blanking interval associated with display content for enhancing a viewing experience when the display content is viewed utilizing stereo glasses.
40. The system as recited in claim 39, wherein the graphics processor is in communication with a central processing unit via a bus.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US78773006P | 2006-03-29 | 2006-03-29 | |
US60/787,730 | 2006-03-29 | ||
US11/462,535 US8169467B2 (en) | 2006-03-29 | 2006-08-04 | System, method, and computer program product for increasing an LCD display vertical blanking interval |
US11/462,535 | 2006-08-04 | ||
US11/462,529 US7724211B2 (en) | 2006-03-29 | 2006-08-04 | System, method, and computer program product for controlling stereo glasses shutters |
US11/462,529 | 2006-08-04 | ||
PCT/US2007/007702 WO2007126904A2 (en) | 2006-03-29 | 2007-03-29 | System, method, and computer program product for controlling stereo glasses shutters |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2646439A1 true CA2646439A1 (en) | 2007-11-08 |
Family
ID=38656050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002646439A Abandoned CA2646439A1 (en) | 2006-03-29 | 2007-03-29 | System, method, and computer program product for controlling stereo glasses shutters |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1999740A4 (en) |
JP (1) | JP4846020B2 (en) |
CN (2) | CN101371292B (en) |
CA (1) | CA2646439A1 (en) |
TW (2) | TWI366679B (en) |
WO (1) | WO2007126904A2 (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD646451S1 (en) | 2009-03-30 | 2011-10-04 | X6D Limited | Cart for 3D glasses |
USD650003S1 (en) | 2008-10-20 | 2011-12-06 | X6D Limited | 3D glasses |
USD650956S1 (en) | 2009-05-13 | 2011-12-20 | X6D Limited | Cart for 3D glasses |
USD652860S1 (en) | 2008-10-20 | 2012-01-24 | X6D Limited | 3D glasses |
USD662965S1 (en) | 2010-02-04 | 2012-07-03 | X6D Limited | 3D glasses |
USD664183S1 (en) | 2010-08-27 | 2012-07-24 | X6D Limited | 3D glasses |
US8233103B2 (en) | 2008-11-17 | 2012-07-31 | X6D Limited | System for controlling the operation of a pair of 3D glasses having left and right liquid crystal viewing shutters |
USD666663S1 (en) | 2008-10-20 | 2012-09-04 | X6D Limited | 3D glasses |
USD669522S1 (en) | 2010-08-27 | 2012-10-23 | X6D Limited | 3D glasses |
USD671590S1 (en) | 2010-09-10 | 2012-11-27 | X6D Limited | 3D glasses |
USD672804S1 (en) | 2009-05-13 | 2012-12-18 | X6D Limited | 3D glasses |
US8339441B2 (en) | 2008-12-26 | 2012-12-25 | Kabushiki Kaisha Toshiba | Frame processing device, television receiving apparatus and frame processing method |
US8542326B2 (en) | 2008-11-17 | 2013-09-24 | X6D Limited | 3D shutter glasses for use with LCD displays |
USD692941S1 (en) | 2009-11-16 | 2013-11-05 | X6D Limited | 3D glasses |
USD711959S1 (en) | 2012-08-10 | 2014-08-26 | X6D Limited | Glasses for amblyopia treatment |
USRE45394E1 (en) | 2008-10-20 | 2015-03-03 | X6D Limited | 3D glasses |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8169467B2 (en) | 2006-03-29 | 2012-05-01 | Nvidia Corporation | System, method, and computer program product for increasing an LCD display vertical blanking interval |
US8872754B2 (en) | 2006-03-29 | 2014-10-28 | Nvidia Corporation | System, method, and computer program product for controlling stereo glasses shutters |
JP5309488B2 (en) * | 2007-07-18 | 2013-10-09 | セイコーエプソン株式会社 | Electro-optical device and electronic apparatus |
US8482511B2 (en) | 2007-11-28 | 2013-07-09 | Koninklijke Philips Electronics N.F. | Stereocopic visualisation |
HUP0800501A2 (en) * | 2008-08-07 | 2010-04-28 | 3D For All Szamitastechnikai F | Device, methods and 3d spectacles for producing stereoscopic sight |
USD613328S1 (en) | 2009-05-13 | 2010-04-06 | X6D Ltd. | 3D glasses |
US8773518B2 (en) | 2009-01-19 | 2014-07-08 | Panasonic Corporation | Image display apparatus and image display method |
JP5619365B2 (en) * | 2009-03-13 | 2014-11-05 | ソニー株式会社 | Image display device, image display observation system, and image display method |
JP4775464B2 (en) * | 2009-03-13 | 2011-09-21 | ソニー株式会社 | Image display device, image display observation system, and image display method |
RU2508607C2 (en) * | 2009-04-14 | 2014-02-27 | Панасоник Корпорэйшн | Video display device, video viewing glasses and system having display device and glasses |
JP2010286587A (en) * | 2009-06-10 | 2010-12-24 | Sony Corp | Image display apparatus, image display observation system, image display method, and program |
US8643707B2 (en) * | 2009-09-07 | 2014-02-04 | Panasonic Corporation | Image signal processing apparatus, image signal processing method, recording medium, and integrated circuit |
WO2011034497A2 (en) * | 2009-09-16 | 2011-03-24 | Tcl Thomson Electronics Singapore Pte Ltd | Shutter glass controller, shutter glass apparatus and display apparatus |
KR101274712B1 (en) * | 2009-11-05 | 2013-06-12 | 네스트리 주식회사 | Stereoscopic Display Device |
WO2011074228A1 (en) * | 2009-12-14 | 2011-06-23 | パナソニック株式会社 | Plasma display device, plasma display system, and method of controlling shutter glass for plasma display device |
KR101591446B1 (en) | 2009-12-22 | 2016-02-04 | 삼성전자주식회사 | 3 3 3d display driving method and apparatus using the same |
KR101651270B1 (en) | 2009-12-24 | 2016-08-29 | 삼성디스플레이 주식회사 | 3 dimensional image display device and method of driving the same |
JP4982553B2 (en) * | 2009-12-24 | 2012-07-25 | 株式会社東芝 | Frame processing apparatus, television receiving apparatus and frame processing method |
JP2011166285A (en) * | 2010-02-05 | 2011-08-25 | Sony Corp | Image display device, image display viewing system and image display method |
CN101866055B (en) * | 2010-03-05 | 2012-05-02 | 华映视讯(吴江)有限公司 | Stereoscopic display and displaying method thereof |
WO2011108287A1 (en) * | 2010-03-05 | 2011-09-09 | パナソニック株式会社 | Illumination control device, illumination device and illumination system using illumination control device, and display device and eyeglass device used together with the illumination control device |
JP2011205241A (en) * | 2010-03-24 | 2011-10-13 | Sony Corp | Shutter glasses and method of obtaining shutter control signal of shutter glasses |
CN102201208B (en) * | 2010-03-25 | 2013-03-20 | 宏碁股份有限公司 | Liquid crystal display and control method thereof |
WO2011122299A1 (en) | 2010-03-31 | 2011-10-06 | Semiconductor Energy Laboratory Co., Ltd. | Driving method of liquid crystal display device |
CN102823262B (en) * | 2010-03-31 | 2014-09-03 | 松下电器产业株式会社 | Three-dimensional display device and method of driving same |
KR20110129329A (en) * | 2010-05-25 | 2011-12-01 | 삼성전자주식회사 | Stereoscopic display apparatus and method of driving the same |
JP5545060B2 (en) * | 2010-06-18 | 2014-07-09 | ソニー株式会社 | Video display system, shutter glasses, and display device |
CN102340680B (en) * | 2010-07-16 | 2014-12-03 | 晨星软件研发(深圳)有限公司 | Image playing system, correlated apparatus thereof and methods thereof |
TWI419549B (en) * | 2010-07-23 | 2013-12-11 | Acer Inc | Shutter glasses and method for controlling shutter glasses |
CN102348122A (en) * | 2010-08-02 | 2012-02-08 | 冠捷投资有限公司 | Active shutter type stereoscopic image display system, device, glasses and control method |
TWI466533B (en) * | 2010-08-06 | 2014-12-21 | Acer Inc | Shutter glasses, and associated control system, control method and emitter |
TWI419550B (en) * | 2010-08-06 | 2013-12-11 | Acer Inc | Shutter glasses and method for controlling shutter glasses |
US20120038624A1 (en) * | 2010-08-10 | 2012-02-16 | Nvidia Corporation | System, method, and computer program product for activating a backlight of a display device displaying stereoscopic display content |
CN102375244A (en) * | 2010-08-24 | 2012-03-14 | 宏碁股份有限公司 | Shutter glasses and method for controlling shutter glasses |
CN102378017A (en) * | 2010-08-24 | 2012-03-14 | 宏碁股份有限公司 | Shutter glasses and method for controlling same |
JP5241788B2 (en) | 2010-09-01 | 2013-07-17 | シャープ株式会社 | Stereoscopic glasses and electronic equipment |
TWI423654B (en) * | 2010-09-16 | 2014-01-11 | Acer Inc | Method for controlling ambient brightness perceived via three-dimensional glasses, three-dimensional glasses, and video display device thereof |
US9094676B1 (en) | 2010-09-29 | 2015-07-28 | Nvidia Corporation | System, method, and computer program product for applying a setting based on a determined phase of a frame |
US9094678B1 (en) | 2010-09-29 | 2015-07-28 | Nvidia Corporation | System, method, and computer program product for inverting a polarity of each cell of a display device |
TWI404002B (en) * | 2010-10-08 | 2013-08-01 | Acer Inc | 3d display and adjustment method for vertical refresh rate thereof |
TWI408949B (en) * | 2010-10-11 | 2013-09-11 | Danic Ind Co Ltd | A video system for displaying 2d&3d images |
KR101689253B1 (en) * | 2010-11-18 | 2016-12-26 | 삼성디스플레이 주식회사 | Three dimensional image display device and method of driving the same |
US8553072B2 (en) * | 2010-11-23 | 2013-10-08 | Circa3D, Llc | Blanking inter-frame transitions of a 3D signal |
JP5117641B2 (en) | 2011-02-04 | 2013-01-16 | パナソニック株式会社 | Display device for displaying video, spectacle device for assisting video viewing, display device, video system including spectacle device, and control method of video system |
JP5821259B2 (en) | 2011-04-22 | 2015-11-24 | セイコーエプソン株式会社 | Image display system, image display device, 3D glasses, and image display method |
CN102810297B (en) * | 2011-05-31 | 2014-10-08 | 宏碁股份有限公司 | Liquid crystal display device and backlight adjusting method thereof |
TWI479880B (en) * | 2011-11-10 | 2015-04-01 | Chicony Electronic Co Ltd | Shutter release time adjustment device and adjustment method thereof |
JP2012044718A (en) * | 2011-11-28 | 2012-03-01 | Toshiba Corp | Frame processing device, television receiving device, and frame processing method |
US9164288B2 (en) | 2012-04-11 | 2015-10-20 | Nvidia Corporation | System, method, and computer program product for presenting stereoscopic display content for viewing with passive stereoscopic glasses |
JP5686162B2 (en) * | 2013-07-03 | 2015-03-18 | セイコーエプソン株式会社 | Electro-optical device and electronic apparatus |
TWI508050B (en) * | 2013-08-15 | 2015-11-11 | Benq Corp | Displaying method and displaying apparatus |
JP6020613B2 (en) * | 2015-01-21 | 2016-11-02 | セイコーエプソン株式会社 | Electro-optical device and electronic apparatus |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6473892A (en) * | 1987-09-14 | 1989-03-20 | Sharp Kk | Reproducing device for stereoscopic image |
US5796373A (en) * | 1996-10-10 | 1998-08-18 | Artificial Parallax Electronics Corp. | Computerized stereoscopic image system and method of using two-dimensional image for providing a view having visual depth |
JP2000004451A (en) * | 1998-06-15 | 2000-01-07 | Idemitsu Kosan Co Ltd | Method and device for displaying stereoscopic picture |
CN1290344C (en) * | 1998-12-14 | 2006-12-13 | 天津三维显示技术有限公司 | Technology for making 100HZ field frequency color TV set have stereogram function |
JP2001045524A (en) * | 1999-01-26 | 2001-02-16 | Denso Corp | Stereoscopic display device |
JP2000284224A (en) * | 1999-03-30 | 2000-10-13 | Idemitsu Kosan Co Ltd | Stereoscopic image display system |
JP2001154640A (en) * | 1999-11-29 | 2001-06-08 | Idemitsu Kosan Co Ltd | Stereoscopic display device and stereoscopic display method |
US6529175B2 (en) * | 2000-01-27 | 2003-03-04 | Vrex, Inc. | Stereoscopic LCD shutter glass driver system |
US6532008B1 (en) * | 2000-03-13 | 2003-03-11 | Recherches Point Lab Inc. | Method and apparatus for eliminating steroscopic cross images |
EP1271965A1 (en) * | 2001-06-23 | 2003-01-02 | Deutsche Thomson-Brandt Gmbh | Method and device for processing video frames for stereoscopic display |
SG119186A1 (en) * | 2002-05-17 | 2006-02-28 | Semiconductor Energy Lab | Display apparatus and driving method thereof |
CN1677166A (en) * | 2004-03-29 | 2005-10-05 | 宋柏君 | 3-D image displaying method |
JP4637068B2 (en) * | 2005-09-14 | 2011-02-23 | オリンパスビジュアルコミュニケーションズ株式会社 | 3D image display method and 3D image display system |
-
2007
- 2007-03-29 TW TW096111054A patent/TWI366679B/en active
- 2007-03-29 CN CN2007800016296A patent/CN101371292B/en active Active
- 2007-03-29 TW TW101105435A patent/TW201229565A/en unknown
- 2007-03-29 CA CA002646439A patent/CA2646439A1/en not_active Abandoned
- 2007-03-29 WO PCT/US2007/007702 patent/WO2007126904A2/en active Application Filing
- 2007-03-29 EP EP07754251A patent/EP1999740A4/en not_active Withdrawn
- 2007-03-29 CN CN2010105224509A patent/CN101982978B/en active Active
- 2007-03-29 JP JP2009502980A patent/JP4846020B2/en active Active
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD650003S1 (en) | 2008-10-20 | 2011-12-06 | X6D Limited | 3D glasses |
USD652860S1 (en) | 2008-10-20 | 2012-01-24 | X6D Limited | 3D glasses |
USRE45394E1 (en) | 2008-10-20 | 2015-03-03 | X6D Limited | 3D glasses |
USD666663S1 (en) | 2008-10-20 | 2012-09-04 | X6D Limited | 3D glasses |
US8233103B2 (en) | 2008-11-17 | 2012-07-31 | X6D Limited | System for controlling the operation of a pair of 3D glasses having left and right liquid crystal viewing shutters |
US8542326B2 (en) | 2008-11-17 | 2013-09-24 | X6D Limited | 3D shutter glasses for use with LCD displays |
US8339441B2 (en) | 2008-12-26 | 2012-12-25 | Kabushiki Kaisha Toshiba | Frame processing device, television receiving apparatus and frame processing method |
USD646451S1 (en) | 2009-03-30 | 2011-10-04 | X6D Limited | Cart for 3D glasses |
USD650956S1 (en) | 2009-05-13 | 2011-12-20 | X6D Limited | Cart for 3D glasses |
USD672804S1 (en) | 2009-05-13 | 2012-12-18 | X6D Limited | 3D glasses |
USD692941S1 (en) | 2009-11-16 | 2013-11-05 | X6D Limited | 3D glasses |
USD662965S1 (en) | 2010-02-04 | 2012-07-03 | X6D Limited | 3D glasses |
USD669522S1 (en) | 2010-08-27 | 2012-10-23 | X6D Limited | 3D glasses |
USD664183S1 (en) | 2010-08-27 | 2012-07-24 | X6D Limited | 3D glasses |
USD671590S1 (en) | 2010-09-10 | 2012-11-27 | X6D Limited | 3D glasses |
USD711959S1 (en) | 2012-08-10 | 2014-08-26 | X6D Limited | Glasses for amblyopia treatment |
Also Published As
Publication number | Publication date |
---|---|
TWI366679B (en) | 2012-06-21 |
JP2009531979A (en) | 2009-09-03 |
EP1999740A2 (en) | 2008-12-10 |
CN101371292B (en) | 2010-12-22 |
TW201229565A (en) | 2012-07-16 |
TW200819788A (en) | 2008-05-01 |
CN101371292A (en) | 2009-02-18 |
WO2007126904A3 (en) | 2008-08-28 |
EP1999740A4 (en) | 2009-11-11 |
WO2007126904A2 (en) | 2007-11-08 |
CN101982978B (en) | 2012-09-19 |
CN101982978A (en) | 2011-03-02 |
JP4846020B2 (en) | 2011-12-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8878904B2 (en) | System, method, and computer program product for increasing an LCD display vertical blanking interval | |
US8576208B2 (en) | System, method, and computer program product for controlling stereo glasses shutters | |
US8872754B2 (en) | System, method, and computer program product for controlling stereo glasses shutters | |
CA2646439A1 (en) | System, method, and computer program product for controlling stereo glasses shutters | |
KR100922667B1 (en) | System, method, and computer program product for compensating for crosstalk during the display of stereo content | |
KR101033406B1 (en) | Method and apparatus for synchronizing display streams | |
US20110157202A1 (en) | Techniques for aligning frame data | |
US8350780B1 (en) | System, method and computer program product for controlling stereoscopic glasses | |
KR20140110242A (en) | Display Drive IC and Image Display System | |
US20120038624A1 (en) | System, method, and computer program product for activating a backlight of a display device displaying stereoscopic display content | |
EP1484737A1 (en) | Display controller | |
TWI436345B (en) | Image display method and image display system | |
US10930194B2 (en) | Display method and display system for reducing image delay by adjusting an image data clock signal | |
JP2011075668A (en) | Image display device and method for driving the same | |
WO2022236601A1 (en) | Image data transmission method and apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
FZDE | Dead |
Effective date: 20130402 |