CN104503195A - Device used for whole row scanning type laser projection display and synchronization control method thereof - Google Patents
Device used for whole row scanning type laser projection display and synchronization control method thereof Download PDFInfo
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- CN104503195A CN104503195A CN201410724582.8A CN201410724582A CN104503195A CN 104503195 A CN104503195 A CN 104503195A CN 201410724582 A CN201410724582 A CN 201410724582A CN 104503195 A CN104503195 A CN 104503195A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2066—Reflectors in illumination beam
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/105—Scanning systems with one or more pivoting mirrors or galvano-mirrors
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
Abstract
The invention provides a device used for whole row scanning type laser display and a synchronization control method thereof. The device used for display comprises a light source assembly, a one-dimensional imaging device, a scanning device, a projection lens, a video decoding device, a light source drive control device and a photoelectric sensor. The light source assembly comprises plural laser generator module groups. The one-dimensional imaging device comprises plural light guide devices. The scanning device is arranged in the light path of laser emergent from a light emergent end and used for reflecting emergent light of the light emergent end of the guide light devices to the projection lens. The photoelectric sensor is used for detecting a single-frame scanned initial laser signal. The light source drive control device is used for outputting drive control signals to the light source assembly in a spacing way according to one-dimensional video signals decoded by the video decoding device. When the scanning device rotates around the rotating shaft of the scanning device, the projected one-dimensional emergent light of a first direction can be scanned along a second direction vertical to the first direction.
Description
Technical field
The application relates to technical field of laser display, is specifically related to a kind of for the device of full line scanning type laser Projection Display and the method for its synchro control.
Background technology
The quantity of information of the mankind 83% is obtained by vision, and only account for 27%, it can thus be appreciated that display device is for the significance of mankind's obtaining information by the quantity of information sum that the sense of hearing, sense of smell, the sense of taste and sense of touch obtain.Within 1897, Braun has invented CRT (Cathode-Ray-Tube, cathode-ray tube (CRT)), and the mankind enter the electronical display epoch since then.In more than the 100 year time afterwards, the mankind have invented various Display in succession, develop miscellaneous display device.Display device roughly can be divided into three kinds: a kind of is light emitting-type display, comprise CRT, LED (Light Emitting Diode, light emitting diode) display screen, OLED (Organic LightEmitting Diode, Organic Light Emitting Diode) display screen, PDP (Plasma Display Panel, plasma display panel) etc.; Another kind of is the display of backlight type, comprises LCD (Liquid Crystal Display, liquid crystal display); The third is projector.
CRT technology, in television receiver and tabletop display market, is replaced by LCD technology because its volume is too large; In large screen projection market, because its output light flux is not enough, replaced by LCD and DLP projector.At the initial stage that LCD TV and PDP TV are competed in domestic TV market and CRT TV, PDP once had half share with LCD with the advantage (color domain coverage ratio 38%) that its color is good; But along with the raising of LCD refreshing frequency and the progress of back light source technique, LCD TV has occupied most shares of TV market.Significantly improve although the LCD TV of LED backlight and the color representation power of display have had, its color domain coverage ratio still only has about 33%.The color domain coverage ratio of bulb projector is less than 30%.
The index passing judgment on display device performance quality mainly contains picture dimension, resolution, brightness, contrast, color representation power etc.Current flourish laser display technology, is expected to the performance index (as picture dimension, resolution, brightness and color representation power etc.) comprehensively surmounting display device in the past.
Laser display technology can be divided into several kinds.Wherein one is called LPD (Laser PhosphorDisplay, laser fluorescence powder show), its structure and CRT similar, but laser beam instead of electron beam; The blue laser beam that Several problems of evaluating laser beam quality of unstable sends, be irradiated to scribble fluorescent powder screen on excitated fluorescent powder luminous, control laser beam two-dimensional scan by vision signal and realize image display.The same with CRT, LPD is difficult to accomplish to resemble LCD thin, and picture dimension is also little, is that the mode of splicing realizes large screen display.The second is the Projection Display using LASER Excited Fluorescence powder light source, and do not re-use Gas lamp bubble, eliminate the maintenance work in the past frequently more changed the bulb, image quality also makes moderate progress simultaneously.The Projection Display of LASER Excited Fluorescence powder light source, not only color coverage rate does not have revolutionary breakthrough, and output light flux is by the restriction of the anti-laser intensity of fluorescent powder, is difficult to accomplish more than 10,000 lumens.The third laser display technology is the Projection Display using red-green-blue LASER Light Source, because mostly adopting DMD (Digital Micromirror Device) light valve, so there is people to be referred to as meaning laser DLP (Digital Light Processing), but also can adopt LCD light valve or LCOS (Liquid Crystal on Silicon, reflection-type liquid crystal light valve) etc.Compared with the Projection Display of LASER Excited Fluorescence powder light source, higher luminous flux and larger color domain coverage ratio can be obtained, but needing to eliminate laser speckle just can obtain desirable image quality.The resolution of laser DLP limits by light valve, and when large screen display, because its number of pixels is limited, although brightness can be very high, color is fine, and pixel is comparatively large, and image frame is visually fine and smooth not.4th kind is laser point by point scanning projection imaging technology, as shown in figure 11, red, green, blue three beams of laser, scans a point (a corresponding pixel) on screen simultaneously, controlled the power of three beams of laser by vision signal, carry out two-dimensional scan to realize coloured image display; Screen is projector's curtain (or rear projection screen) used, instead of the glass plate scribbling fluorescent powder as LPD or CRT.Laser point by point scanning projection imaging technology, resolution can be very high, but laser beam power is very high, stops scanning motionless, be easy to breaking out of fire, burn human eye or skin once light beam; Two-dimensional scan device is also comparatively complicated.
Summary of the invention
The application provides a kind of device for the display of full line scanning type laser.To solve the problems referred to above of existing laser display apparatus.The application also provides a kind of synchronisation control means of the device for described full line scanning type laser display.
A kind of device for the display of full line scanning type laser that the application provides, comprising:
Light source assembly, one-dimensional image device, scanister, projection lens, video decoder, light source drive control device and photoelectric sensor;
Described light source assembly comprises a plurality of laser generator module, and each laser generator module is for generation of the corresponding laser of single pixel;
Described one-dimensional image device comprises a plurality of leaded light device and is arranged at the laser generator module laser coupled mouthpiece of leaded light device coupled end described in each; The bright dipping end of described leaded light device is along first direction one dimensional arrangement;
Scanister is provided with at least one reflecting surface, and described scanister is arranged at described bright dipping and brings out in the light path of the laser penetrated, and the emergent light for the bright dipping end by described leaded light device reflexes to described projection lens;
Described projection lens, is imaged onto on screen by the bright dipping end along first direction one dimensional arrangement;
Described photoelectric sensor is connected with described light source drive control device, and is arranged in the scanning initial light path of described scanister reflecting surface emergent light, for detecting the initial laser signal of single frames scanning;
Described light source drive control device is connected with described video decoder, for after the initial laser signal receiving photoelectric sensor detection, exports drive control signal according to the decoded dimensional video signal interval of video decoder to light source assembly;
Wherein, described scanister is provided with the turning axle parallel with described first direction, and when described scanister rotates around its turning axle, the one dimension emergent light that can realize the first direction be projected scans along the second direction perpendicular to described first direction.
Optionally, described laser generator module comprises the laser instrument producing red, green, blue tricolor laser, and is arranged at the collimating element in the emitting light path of each laser instrument;
Each leaded light device described includes three light transmitting fibers that should arrange with the laser relative of described generation red, green, blue tricolor laser, and the fibre-optic coupled end of each root is provided with coupling as described laser coupled mouthpiece; Described coupling is arranged in the light path after collimating of the laser instrument corresponding with this light transmitting fiber, and towards carrying out light direction, for receiving the laser beam that corresponding laser instrument sends; All light transmitting fibers of each leaded light device described form a pixel.
Optionally, described laser generator module comprises the blue laser of red laser and two the generation blue lasers producing red laser; And the collimating element be arranged in the emitting light path of each laser instrument;
Each leaded light device described includes three light transmitting fibers with the corresponding setting one by one of the laser instrument of each laser generator module, and the fibre-optic coupled end of each root is provided with coupling as described laser coupled mouthpiece; Described coupling is arranged in the light path after collimating of the laser instrument corresponding with this light transmitting fiber, and towards carrying out light direction, for receiving the laser beam that corresponding laser instrument sends; All light transmitting fibers of each leaded light device described form a pixel;
Wherein, the fibre-optic light output end corresponding with a wherein blue laser is provided with fluorescent coating, and described fluorescent coating is used for exciting lower generation green glow at blue laser.
Optionally, the concordant setting of all light transmitting fiber bright dipping end end faces of each leaded light device described, and bright dipping end is bonded as one; The concordant setting of bright dipping end end face of all leaded light devices.
Optionally, described laser generator module comprises the laser instrument producing red, green, blue tricolor laser, two two-phase look mirrors and two right-angle prisms;
In the light path of three look laser instruments described in described two-phase look mirror and two right-angle prisms, and the laser beam of all laser emittings of each light source assembly is spatially overlapped, and propagate in the same direction;
Each leaded light device described comprises a light transmitting fiber with the corresponding setting of each laser instrument module, and described fibre-optic coupled end is provided with coupling as described laser coupled mouthpiece; Described coupling is arranged in the light path after collimating of the laser instrument module corresponding with this light transmitting fiber, and towards carrying out light direction, receive the redgreenblue laser beam spatially overlapped, each fibre-optic bright dipping end forms a pixel; The concordant setting of all fibre-optic bright dipping end end faces, and be in line along described first direction, and all fibre-optic bright dipping ends are bonded as one.
Optionally, described scanister comprises rotating multisurface prism or scanning pendulum len.
Optionally, also projection display equipment is comprised.
The application also provides a kind of for above-mentioned arbitrary described synchronisation control means for full line scanning type laser display device, comprising:
Obtain the laser initializing signal of described full line scanning type laser display device;
Start timing from this initializing signal obtained temporarily, after postponing the first special time, the control signal of the first column or row pixel of a frame signal is transferred to light source assembly;
When described delay first special time cut-off, start timing, every the second special time, successively the control signal of next column or row pixel is transferred to light source assembly, till last column or row pixel of this frame signal;
Come at next frame signal interim, repeat above-mentioned steps.
Optionally, also comprise before the laser initializing signal of described acquisition described full line scanning type laser display device: judge whether the rotating speed of the scanister of described full line scanning type laser display device is stablized, after stabilization of speed, perform the step of the laser initializing signal of described acquisition described full line scanning type laser display device again.
Optionally, whether the described rotating speed judging the scanister of described full line scanning type laser display device is stable comprises:
Obtain laser initializing signal continuous three times;
Judge that whether the time interval of double laser initializing signal is identical, if identical, be then considered as scanister rotating speed and stablize.
Optionally, angle Ω in a described two field picture between the beam direction of the first column or row and the beam direction of last column or row is less than 180* [(n-4)/n], and described first special time is { 180* [(n-4)/n]-Ω }/ω;
Described second special time is Ω/A
Wherein, described n is scanister when being polygon prism, and corner angle face number, ω is that corner angle are reported, and A is the number of the column or row of direction of scanning.
Compared with prior art, the application has the following advantages:
One of them aspect of the application discloses a kind of line scanning formula laser display apparatus, it can produce one dimensional image by light source assembly and one-dimensional image device, in this one-dimensional image device, the bright dipping end one-dimensional array arrangement of a plurality of leaded light device, each bright dipping end forms a pixel, all bright dipping ends are fixing along a line bonding, and one-row pixels can form one dimensional image.Described one dimensional image is projected on the scanister of such as rotating multisurface prism, at the one dimension scanning direction perpendicular to described one dimensional image, and in scanning process, synchronously change the output intensity of one dimensional image, can realize forming two dimensional image.The device of the present embodiment, only needs one of them dimension of two dimensional image wherein scans, greatly reduces sweep time, thus can significantly improve the refreshing frequency of screen picture; In the scheme of the application, take full advantage of the feature of laser as pointolite, the brightness of image making to utilize the device of the application to be formed is very high; In equal luminous flux output situation, light beam beam intensity ratio point by point scanning mode is wanted much weak (1/1000 order of magnitude), so security is higher; In addition, the scheme of the application does not re-use light valve, and resolution can more than 4K (i.e. the pixel resolution of 4096 × 2160); The scheme optical texture of the application succinctly makes the efficiency of light energy utilization higher; Red-green-blue laser is adopted to ensure that very high color coverage rate; Number of lasers is relevant to number of pixels, can export higher luminous flux; Can obtain over-large screen display system without connecting method, and pixel is very little, picture is very fine and smooth, bright, gorgeous;
The application provides that a kind of brightness is the highest, resolution is higher, the better projector of color representation power.
Accompanying drawing explanation
Fig. 1 is for the wherein pixel in full line scanning type laser display device first embodiment of the application forms the schematic diagram of light path;
Fig. 2 is light source assembly in the first embodiment of the full line scanning type laser display device of the application and the interconnective schematic diagram of one-dimensional image device;
The partial enlarged drawing of one-dimensional pixel array in the first embodiment has been shown in Fig. 3;
Fig. 4 is the first example structure schematic diagram of the scanning type laser display device of the application;
Fig. 5 is the schematic diagram that the single pixel color of scanning type laser display device first embodiment of the application controls;
Fig. 6, it is the formation light path schematic diagram of single pixel in the second embodiment of the scanning type laser display device of the application;
Fig. 7 be Fig. 6 along AA to view;
Fig. 8 is the schematic diagram of the pel array that in the second embodiment of the scanning type laser display device of the application, multiple pixel is formed;
Fig. 9 is the schematic diagram that the single pixel color of scanning type laser display device second embodiment of the application controls;
Figure 10 is the formation light path schematic diagram of single pixel in the 3rd embodiment of the scanning type laser display device of the application;
Figure 11 is the structural representation of existing a kind of laser point by point scanning projection imaging device;
Figure 12 arranges scanning optical path schematic diagram after photoelectric sensor in the embodiment of the scanning type laser display device of the application;
Figure 13 is the synchronous principle schematic of the video decoder of the embodiment of the scanning type laser display device of the application and light source drived control achieve frame.
Embodiment
Set forth a lot of detail in the following description so that fully understand the application.But the application can be much different from alternate manner described here to implement, those skilled in the art can when doing similar popularization without prejudice to when the application's intension, and therefore the application is by the restriction of following public concrete enforcement.
In the embodiment of the application, disclose a kind of device for the display of full line scanning type laser.
Described device comprises for generation of the light source assembly of laser, for realizing at the one-dimensional image device of one-dimensional square to imaging, the one dimensional image to described one-dimensional image device at the scanister of its vertical scan direction, projection lens, video decoder, light source drive control device and photoelectric sensor.Wherein, described light source assembly comprises a plurality of laser generator module, and each laser generator module is for generation of the corresponding laser of single pixel; Described one-dimensional image device comprises a plurality of leaded light device and is arranged at the laser generator module laser coupled mouthpiece of leaded light device coupled end described in each; The bright dipping end of described leaded light device, along first direction one dimensional arrangement, forms one-row pixels; Scanister is provided with at least one reflecting surface, and described scanister is arranged at described bright dipping and brings out in the light path of the laser penetrated; Emergent light for the bright dipping end by described leaded light device reflexes to projection lens, and projection lens is by bright dipping end imaging on screen of described leaded light device;
Described photoelectric sensor is connected with described light source drive control device, and is arranged in the scanning initial light path of described scanister reflecting surface emergent light, for detecting the initial laser signal of single frames scanning; For detecting frame synchronization initializing signal during scanning;
Described light source drive control device is connected with described video decoder, for after the initial laser signal receiving photoelectric sensor detection, exports drive control signal according to the decoded dimensional video signal interval of video decoder to light source assembly; Described control signal comprises carrier chrominance signal and luminance signal, for the red, green, blue laser that controls each laser generator module outgoing of described light source assembly in not light intensity in the same time; Wherein, described scanister is provided with the turning axle parallel with described first direction, and when described scanister rotates around its turning axle, the one dimension emergent light that can realize the first direction be projected scans along the second direction perpendicular to described first direction.Being combined with leaded light device by LASER Light Source realizes at one-dimensional square to the one dimensional image arranged, and can form a frame two dimensional image to described one dimensional image at the second dimension scanning direction.
Be described in detail below in conjunction with the embodiment of accompanying drawing to the device for the display of full line scanning type laser of the application.The various piece and the mutual relationship thereof that just form the full line scanning type laser projection display equipment of the present embodiment below are respectively described in detail.
Please refer to Fig. 2, it is light source assembly in the embodiment of the full line scanning type laser projection display equipment of the application and the interconnective schematic diagram of one-dimensional image device.In the present embodiment, light source assembly comprises a plurality of laser generator module 100.Each laser generator module corresponds to a pixel, and its color is realized by the light intensity of the red, green, blue three look laser controlling the transmitting of this laser generator module.Can realize the control to shoot laser intensity by the drive current controlling laser instrument in this laser generator module, and drive current can be modulated by vision signal.Laser generator module is connected with the leaded light device of one-dimensional image device, the red, green, blue three look laser coupled of being launched by laser instrument is to described leaded light device, and via the other end outgoing of leaded light device, this exit end just forms a colour element (certainly, as required, include monochrome pixels can be formed).The bright dipping end of all leaded light devices is in line, and forms the wherein one dimension of a frame two dimensional image.Illustrate for one of them pixel below.
First embodiment
Please refer to Fig. 1, it is the schematic diagram of a wherein pixel formation light path of the full line scanning type laser display device of the application.As shown in Figure 1, laser generator module 100 comprises red laser 102c, green (light) laser 102b and blue laser 102a, the first dichroic mirror 106 and the second dichroic mirror 208, first right angle corner angle 204 and the second right angle corner angle 202.The arrangement of above-mentioned optical device as shown in Figure 1.
The red laser beam that red laser 102c sends is reflected by the first right-angle prism 204, turns back after 90 ° and be irradiated on the first dichroic mirror 106 in the direction of propagation; First dichroic mirror 106 transmit green reflect red; Careful adjustment first right angle corner angle 204 are apart from the distance (namely mobile first right angle corner angle 204 in horizontal direction) of red laser, and rotate the first right angle corner angle 204 along the direction of vertical paper, necessarily can make transmitted through the first dichroic mirror 106 green laser bundle with reflected by the first dichroic mirror 106 after red laser bundle spatially overlap.
The blue laser beam of blue laser 102a is reflected by the second right-angle prism 202, turns back after 90 ° and be irradiated on the second dichroic mirror 208 in the direction of propagation; Second dichroic mirror 208 transmit green and ruddiness and reflect blue; Careful adjustment second right-angle prism 202 is apart from the distance (namely mobile second right-angle prism 202 in horizontal direction) of blue laser, and rotate the second right-angle prism 202 along the direction of vertical paper, necessarily can make transmitted through the second dichroic mirror 208 red-green glow laser beam with reflected by the second dichroic mirror 208 after blue laser beam spatially overlap, form white light laser beam.
White light laser beam is after the first coupled lens 210 and the second coupled lens 212, by coupled laser coupling interface part SMA905 interface or FC interface, enter in a light transmitting fiber (abbreviation optical fiber) 216 and propagate, the output terminal 218 of optical fiber forms a colour element (single pixel).
By described single colour element along one-dimensional square to arrangement, and be bonded together, namely formed as the one-dimensional pixel array 200c in Fig. 2 and Fig. 3.Wherein, the partial enlarged drawing of one-dimensional pixel array 200c has been shown in Fig. 3, single pixel 218a is array structure along one dimensional arrangement, and the bright dipping end of described leaded light device is bonded as one, and the concordant setting of bright dipping end end face.The number of described single pixel can determine according to pixel count to be shown.Can be such as 768 or 1024 or 2048.For each pixel, all need three laser instruments, namely above-mentioned red laser 102c, green (light) laser 102b and blue laser 102a.Wherein, red laser and blue laser can adopt semiconductor laser tube, and green (light) laser can be all solid state laser or Green-emitting semiconductor laser tube.
Please refer to Fig. 4, it is the example structure schematic diagram of the full line scanning type laser display device of the application, wherein, in the diagram, eliminates display module.Please refer to Fig. 4, except above-mentioned display module and one-dimensional image device, collimation lens 300a, post lens 300b in the light path also comprise scanister 300, being arranged between described one-dimensional image device 200b and scanister 300 and be arranged at the projecting lens 400 of exiting side of scanister 300.
In the present embodiment, described scanister 300 is turnable multi-arris mirror, and the present embodiment is specially eight prisms.Described eight prisms have eight mirrored sides, described positive eight prisms 300 (actual be not limited to positive eight prisms) are arranged in the bright dipping light path of described one-dimensional image device 200b, the light that described one-dimensional image device 200b sends is by after collimation lens and post lens 300b, converge in a wherein mirrored sides of described eight prisms 300, and be radiated on projection screen 500 after projecting lens 400 via after mirrored sides reflection.Eight prisms described in the present embodiment have turning axle (and central shaft), its turning axle is arranged along the one-dimensional array direction being parallel to described one-dimensional image device, if rotate described eight prisms along the turning axle of described eight prisms, namely can realize being projeced into one dimensional image on described projection screen 500 at the scanning direction perpendicular to described one dimensional image, form Two-dimensional Color Image.
Produce the image of 1024 × 768 resolution for screen, if one-dimensional image device launches 768 column of colours, after collimation lens and cylindrical lens, be irradiated on a face of positive eight prisms 300; Positive eight prisms 300 are with angular velocity omega around its central shaft uniform rotation, and folded light beam is with 2 ω angular velocity uniform rotation, and the rotational angle maximum magnitude of folded light beam is 90 °.Folded light beam is through projection lens projects on screen 500, and when polygon prism is static, folded light beam forms a line (or row) colour element (having 768 pixels in this example) on screen; When polygon prism with ω angular velocity around its central shaft uniform rotation time, folded light beam is with 2 ω angular velocity uniform speed scanning screens; Once, the color of each pixel, a scan period inner conversion 1024 times, screen just can produce folded light beam scanning screen the Two-dimensional Color Image of 1024 × 768 resolution; If color transformed 2048 times of each pixel, screen just produces the image of 2048 × 768 resolution.
Wherein, described scanister can also be other optical element, such as face, plural face mirror reflective surface facing outward and side end to end and the face mirror combination that formed or scanning pendulum len.Wherein, the axis of swing of scanning pendulum len is turning axle described in the application, it should be noted that, adopts scanning pendulum len in this application, then the image formed alternately scans screen in direction in opposite directions.
Please refer to Fig. 5, it is the schematic diagram of the single pixel color control of the present embodiment.
As shown in Figure 5, each laser instrument is all connected with Laser Driven control device 20, and Laser Driven control device 20 is all connected with video decoder 10, photoelectric sensor 12.Vision signal is after video interface circuit and the process of video decoding circuit plate, and the carrier chrominance signal of each pixel and luminance signal are transferred to driver 20.Carrier chrominance signal determines the relative size of red, green, blue laser instrument 102c, 102b and 102c drive current in laser generator module, just determines the driving current value of red, green, blue laser instrument 102c, 102b and 102c according to luminance signal.Photoelectric sensor 12 detects the initializing signal of each two field picture, synchronous between the every one dimension pel array realizing Laser Driven control device on each frame and different frame frame and prism scan and report, can be described in detail in following step to this synchronization implementation.
In the above-described embodiment, disclose a kind of full line scanning type laser display device, one dimensional image can be produced by light source assembly and one-dimensional image device, in this one-dimensional image device, the bright dipping end one-dimensional array arrangement of multiple leaded light device, one dimensional image is made spatially to spread out and be formed, described one dimensional image is projected on the scanister of such as eight prisms, at the one dimension scanning direction perpendicular to described one dimensional image, and in scanning process, synchronously change the output intensity of one dimensional image, just two dimensional image can be formed, described eight prisms of continuous rotation, video playback can be realized.The device of the present embodiment, only needs one of them dimensional searches of two dimensional image wherein, substantially reduces cycle sweep time, thus can significantly improve the refreshing frequency of screen picture.In addition, in the scheme of the application, take full advantage of the feature of laser as pointolite, the brightness of image making to utilize the device of the application to be formed is high, color is good, in equal luminous flux output situation, the scheme light beam beam intensity ratio point by point scanning mode of the present embodiment is wanted much weak (1/1000 order of magnitude), so security is higher; In addition, the scheme of the application does not re-use light valve, and resolution can more than 4K (i.e. the pixel resolution of 4096 × 2160); The scheme optical texture of the application succinctly makes the efficiency of light energy utilization higher; Red-green-blue laser is adopted to ensure that very high color coverage rate; Number of lasers is relevant to number of pixels, can export higher luminous flux; Can obtain over-large screen display system without connecting method, and pixel is very little, picture is very fine and smooth, bright, gorgeous;
Second embodiment
In the present embodiment, scanister is same as the previously described embodiments, and difference is the mode difference forming single pixel.Please refer to Fig. 6, it is the formation light path schematic diagram of single pixel in the second embodiment of the scanning type laser display device of the application.In the present embodiment, laser generator module comprises red, green, blue three look laser instrument (102c, 102b, 102a), and is arranged at collimating element (210a, 210b, the 210c in the emitting light path of each laser instrument; 212a, 212b, 212c);
Described leaded light device comprises the light transmitting fiber that should arrange with each laser relative, and each fibre-optic coupled end is provided with coupling SMA905 or FC joint as described laser coupled mouthpiece; Described coupling is arranged in the light path after collimating of the laser instrument corresponding with this light transmitting fiber, and towards carrying out light direction, for receiving the laser beam that corresponding laser instrument sends; The concordant setting of all fibre-optic bright dipping end end face of each leaded light device, and bright dipping end is bonded as one.All light transmitting fibers of each leaded light device described form a pixel.
Each leaded light device described includes three light transmitting fibers that should arrange with the laser relative of described generation red, green, blue tricolor laser, and each fibre-optic coupled end is provided with coupling as described laser coupled interface; Described coupling is arranged in the light path after collimating of the laser instrument corresponding with this light transmitting fiber, and towards carrying out light direction, for receiving the laser beam that corresponding laser instrument sends; The concordant setting of end face of all fibre-optic bright dipping end 219 of each leaded light device, and bright dipping end is bonded as one; Form the colour element that a RGB three points of pixels do not overlap, as shown in Figure 7.Fig. 7 be Fig. 6 along AA to view, single pixel comprises three points of pixels spatially do not overlapped: red pixel 219a, blue pixel 219c and green pixel 219b.The pel array that multiple pixel is formed as shown in Figure 8.The Color control of single pixel as shown in Figure 9, repeats no more here.
The other side of the present embodiment can be identical with the first above-mentioned embodiment, repeats no more here.
3rd embodiment
In the present embodiment, the implementation of include monochrome pixels is substantially identical with above-mentioned second embodiment, difference is that the fibre-optic light output end corresponding with a wherein blue laser 103b is provided with fluorescent coating, and described as shown in Figure 10 fluorescent coating is used for exciting lower generation green glow at blue laser.The present embodiment other side is identical with the second above-mentioned embodiment.The advantage of the present embodiment is that image speckle is very weak.
As mentioned above, a plurality of (as 768) column of colour is launched by one-dimensional image device or device, after collimation lens and cylindrical lens, be irradiated on a face of exposure subsystem (be positive eight prisms in above-described embodiment of the application, be not limited in actual use be not limited to positive eight prisms); Exposure subsystem with ω angular velocity around its central shaft uniform rotation, folded light beam is then with 2 ω angular velocity uniform rotation, the rotational angle maximum magnitude of folded light beam be 90 ° (now, light beam irradiation makes this light beam parallel with the adjacent next sensitive surface of exposure subsystem to the angle in one of them face).Folded light beam is through projection lens projects on screen, and when polygon prism is static, folded light beam forms a line (or row) colour element (having 768 pixels in the present embodiment) on screen; When polygon prism with ω angular velocity around its central shaft uniform rotation time, folded light beam is with 2 ω angular velocity uniform speed scanning screens; Once, color transformed 1024 times of each pixel, screen just produce folded light beam scanning screen the image of 1024 × 768 resolution; If color transformed 2048 times of each pixel, screen just produces the image of 2048 × 768 resolution.For realizing light source drive control device for the signal transacting of different battle array frame and scanister rotational speed matches, with synchronous between the different frame realizing screen display, the device for the display of full line scanning type laser of the application is also provided with photoelectric sensor 12, as shown in figure 12, the reflecting surface that described photoelectric sensor is arranged at described scanister (is the working reflex face of eight prisms in the application, namely in running order reflecting surface) emergent light scanning initial light path in, now, should be the light path of single frames initial sweep, for when single frames initial sweep, this scan light signal can be caught.What this photoelectric sensor 12 both can be arranged at projection lens comes light side, also can be set to light emission side.
When achieve frame is synchronous, please refer to Figure 13, first, obtain the laser initializing signal of described full line scanning type laser display device; Then, start timing from this initializing signal obtained temporarily, after postponing the first special time, the control signal of the first column or row pixel of a frame signal is transferred to light source assembly; Then, when described delay first special time cut-off, start timing, every the second special time, successively the control signal of next column or row pixel is transferred to light source assembly, till last column or row pixel of this frame signal; Again then, come at next frame signal interim, repeat above-mentioned steps.In above-mentioned method, by before the arriving of each frame or when arriving, obtain initializing signal, as the initial sweep signal of present frame, make the sweep signal of each frame synchronous with the frame process of light source drive control device.Ensure that the normal work of scanning type laser display device.
In the present embodiment, also comprise before the laser initializing signal of described acquisition described full line scanning type laser display device: judge whether the rotating speed of the scanister of described full line scanning type laser display device is stablized, the step of the laser initializing signal of described acquisition described full line scanning type laser display device is performed again after stabilization of speed, wherein, whether the described rotating speed judging the scanister of described full line scanning type laser display device is stable realizes by such as under type: obtain laser initializing signals continuous three times; Judge that whether the time interval of double laser initializing signal is identical, if identical, be then considered as scanister rotating speed and stablize.
In addition, described first special time is determined by the relation between the angle Ω between the beam direction of the first column or row in a described two field picture and the beam direction of last column or row and the maximum angle M of beam flying.When the angle Ω between the beam direction and the beam direction of last column or row of the first column or row in a described two field picture is M=180* [(n-4)/n], then described first special time is zero, but due to scanning initial row or column (and last row or column) block by above-mentioned photoelectric sensor (or thinking pel array bright dipping end), cannot imaging on screen.The video frequency signal processing of first or last row or column can be the monochromator array not carrying video image by technological means by those skilled in the art, and only uses mid scan region.
When angle Ω in a described frame signal between the beam direction of the first column or row and the beam direction of last column or row is less than 180* [(n-4)/n], described first special time equals: { 180* [(n-4)/n]-Ω }/ω;
Angle Ω between the beam direction of described second special time and the first column or row in a two field picture and the beam direction of last column or row and the line number of scanning or columns relevant.Described second special time is Ω/A
Wherein, described n is scanister when being polygon prism, and corner angle face number, ω is that corner angle are reported, and A is the number of the column or row of direction of scanning.
Below for single frames 1024*768 pixel and the specific implementation step of line scanning to frame synchronization be described in detail.Please refer to above-mentioned accompanying drawing 12, when screen refresh rate is 120Hz, need the rotational speed omega=30 π/s of polygon prism, namely rotating speed is 900 turns per minute.In one frame signal the beam direction of first row (or the first row) pixel and last row (or last column) pixel beam direction between angle be Ω, if the number of column or row is A (in this example A=1024), the first special time T1=(pi/2-Ω)/ω; Second special time Δ T2=Ω/A.
Although the application with preferred embodiment openly as above; but it is not for limiting the application; any those skilled in the art are not departing from the spirit and scope of the application; can make possible variation and amendment, the scope that therefore protection domain of the application should define with the application's claim is as the criterion.
Claims (11)
1., for a device for full line scanning type laser display, it is characterized in that comprising:
Light source assembly, one-dimensional image device, scanister, projection lens, video decoder, light source drive control device and photoelectric sensor;
Described light source assembly comprises a plurality of laser generator module, and each laser generator module is for generation of the corresponding laser of single pixel;
Described one-dimensional image device comprises a plurality of leaded light device and is arranged at the laser generator module laser coupled mouthpiece of leaded light device coupled end described in each; The bright dipping end of described leaded light device is along first direction one dimensional arrangement;
Scanister is provided with at least one reflecting surface, and described scanister is arranged at described bright dipping and brings out in the light path of the laser penetrated, and the emergent light for the bright dipping end by described leaded light device reflexes to described projection lens;
Described projection lens, is imaged onto on screen by the bright dipping end along first direction one dimensional arrangement;
Described photoelectric sensor is connected with described light source drive control device, and is arranged in the scanning initial light path of described scanister reflecting surface emergent light, for detecting the initial laser signal of single frames scanning;
Described light source drive control device is connected with described video decoder, for after the initial laser signal receiving photoelectric sensor detection, exports drive control signal according to the decoded dimensional video signal interval of video decoder to light source assembly;
Wherein, described scanister is provided with the turning axle parallel with described first direction, and when described scanister rotates around its turning axle, the one dimension emergent light that can realize the first direction be projected scans along the second direction perpendicular to described first direction.
2. full line scanning type laser display device according to claim 1, is characterized in that: described laser generator module comprises the laser instrument producing red, green, blue tricolor laser, and is arranged at the collimating element in the emitting light path of each laser instrument;
Each leaded light device described includes three light transmitting fibers that should arrange with the laser relative of described generation red, green, blue tricolor laser, and the fibre-optic coupled end of each root is provided with coupling as described laser coupled mouthpiece; Described coupling is arranged in the light path after collimating of the laser instrument corresponding with this light transmitting fiber, and towards carrying out light direction, for receiving the laser beam that corresponding laser instrument sends; All light transmitting fibers of each leaded light device described form a pixel.
3. full line scanning type laser display device according to claim 1, is characterized in that, described laser generator module comprises the blue laser of red laser and two the generation blue lasers producing red laser; And the collimating element be arranged in the emitting light path of each laser instrument;
Each leaded light device described includes three light transmitting fibers with the corresponding setting one by one of the laser instrument of each laser generator module, and the fibre-optic coupled end of each root is provided with coupling as described laser coupled mouthpiece; Described coupling is arranged in the light path after collimating of the laser instrument corresponding with this light transmitting fiber, and towards carrying out light direction, for receiving the laser beam that corresponding laser instrument sends; All light transmitting fibers of each leaded light device described form a pixel;
Wherein, the fibre-optic light output end corresponding with a wherein blue laser is provided with fluorescent coating, and described fluorescent coating is used for exciting lower generation green glow at blue laser.
4. the full line scanning type laser display device according to Claims 2 or 3, is characterized in that, the concordant setting of all light transmitting fiber bright dipping end end faces of each leaded light device described, and bright dipping end is bonded as one; The concordant setting of bright dipping end end face of all leaded light devices.
5. full line scanning type laser display device according to claim 1, is characterized in that:
Described laser generator module comprises the laser instrument producing red, green, blue tricolor laser, two two-phase look mirrors and two right-angle prisms;
Described two-phase look mirror and two right-angle prisms are arranged in the light path of described three look laser instruments, and the laser beam of all laser emittings of each light source assembly is spatially overlapped, and propagate in the same direction;
Each leaded light device described comprises a light transmitting fiber with the corresponding setting of each laser instrument module, and described fibre-optic coupled end is provided with coupling as described laser coupled mouthpiece; Described coupling is arranged in the light path after collimating of the laser instrument module corresponding with this light transmitting fiber, and towards carrying out light direction, receive the redgreenblue laser beam spatially overlapped, each fibre-optic bright dipping end forms a pixel; The concordant setting of all fibre-optic bright dipping end end faces, and be in line along described first direction, and all fibre-optic bright dipping ends are bonded as one.
6. full line scanning type laser display device according to claim 1, it is characterized in that, described scanister comprises rotating multisurface prism or scanning pendulum len.
7. full line scanning type laser display device according to claim 1, is characterized in that, also comprise projection display equipment.
8., for the arbitrary described synchronisation control means for full line scanning type laser display device of the claims 1 to 7, it is characterized in that, comprising:
Obtain the laser initializing signal of described full line scanning type laser display device;
Start timing from this initializing signal obtained temporarily, after postponing the first special time, the control signal of the first column or row pixel of a frame signal is transferred to light source assembly;
When described delay first special time cut-off, start timing, every the second special time, successively the control signal of next column or row pixel is transferred to light source assembly, till last column or row pixel of this frame signal;
Come at next frame signal interim, repeat above-mentioned steps.
9. the synchronisation control means for full line scanning type laser display device according to claim 8, it is characterized in that, also comprise before the laser initializing signal of described acquisition described full line scanning type laser display device: judge whether the rotating speed of the scanister of described full line scanning type laser display device is stablized, after stabilization of speed, perform the step of the laser initializing signal of described acquisition described full line scanning type laser display device again.
10. the synchronisation control means for full line scanning type laser display device according to claim 9, is characterized in that, whether the described rotating speed judging the scanister of described full line scanning type laser display device is stable comprises:
Obtain laser initializing signal continuous three times;
Judge that whether the time interval of double laser initializing signal is identical, if identical, be then considered as scanister rotating speed and stablize.
11. synchronisation control meanss for full line scanning type laser display device according to claim 8, is characterized in that,
Angle Ω in a described two field picture between the beam direction of the first column or row and the beam direction of last column or row is less than 180* [(n-4)/n], and described first special time is { 180* [(n-4)/n]-Ω }/ω;
Described second special time is Ω/A
Wherein, described n is scanister when being polygon prism, and corner angle face number, ω is that corner angle are reported, and A is the number of the column or row of direction of scanning.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106406004A (en) * | 2016-12-12 | 2017-02-15 | 广景视睿科技（深圳）有限公司 | Curved-surface wavelength conversion system |
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| CN109788264A (en) * | 2018-12-20 | 2019-05-21 | 歌尔股份有限公司 | Frame synchronizing signal generation method and projection device |
| WO2019242260A1 (en) * | 2018-06-22 | 2019-12-26 | 深圳市润沃自动化工程有限公司 | Laser reflection imaging apparatus |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6018408A (en) * | 1999-03-26 | 2000-01-25 | Samsung Electronics Co., Ltd. | Laser projection display apparatus |
| CN1257214A (en) * | 1998-12-14 | 2000-06-21 | 三星电子株式会社 | Large size image projector |
| US6154259A (en) * | 1996-11-27 | 2000-11-28 | Photera Technologies, Inc. | Multi-beam laser scanning display system with speckle elimination |
| CN1322307A (en) * | 1998-10-08 | 2001-11-14 | 先进激光技术公司 | Light beam display |
| CN101060636A (en) * | 2006-04-21 | 2007-10-24 | Hb电子株式会社 | Laser display apparatus |
| CN102289072A (en) * | 2010-06-07 | 2011-12-21 | 普雷斯姆股份有限公司 | Calibrating a laser based display |
-
2014
- 2014-12-03 CN CN201410724582.8A patent/CN104503195B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6154259A (en) * | 1996-11-27 | 2000-11-28 | Photera Technologies, Inc. | Multi-beam laser scanning display system with speckle elimination |
| CN1322307A (en) * | 1998-10-08 | 2001-11-14 | 先进激光技术公司 | Light beam display |
| CN1257214A (en) * | 1998-12-14 | 2000-06-21 | 三星电子株式会社 | Large size image projector |
| US6018408A (en) * | 1999-03-26 | 2000-01-25 | Samsung Electronics Co., Ltd. | Laser projection display apparatus |
| CN101060636A (en) * | 2006-04-21 | 2007-10-24 | Hb电子株式会社 | Laser display apparatus |
| CN102289072A (en) * | 2010-06-07 | 2011-12-21 | 普雷斯姆股份有限公司 | Calibrating a laser based display |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106406004A (en) * | 2016-12-12 | 2017-02-15 | 广景视睿科技（深圳）有限公司 | Curved-surface wavelength conversion system |
| CN106406004B (en) * | 2016-12-12 | 2018-02-09 | 广景视睿科技（深圳）有限公司 | A kind of curved surface Wavelength conversion system |
| US10481389B2 (en) | 2016-12-12 | 2019-11-19 | Iview Displays (Shenzhen) Company Ltd. | Curved-surface apparatus for wavelength converting |
| WO2019242260A1 (en) * | 2018-06-22 | 2019-12-26 | 深圳市润沃自动化工程有限公司 | Laser reflection imaging apparatus |
| CN109525827A (en) * | 2018-10-16 | 2019-03-26 | 歌尔股份有限公司 | Image processing method, device and equipment |
| CN109788264A (en) * | 2018-12-20 | 2019-05-21 | 歌尔股份有限公司 | Frame synchronizing signal generation method and projection device |
| CN109788264B (en) * | 2018-12-20 | 2021-04-20 | 歌尔光学科技有限公司 | Frame synchronization signal generation method and projection equipment |
| CN111866477A (en) * | 2019-04-30 | 2020-10-30 | 深圳光峰科技股份有限公司 | Image forming apparatus and method |
| CN112118430A (en) * | 2019-06-20 | 2020-12-22 | 青岛海信激光显示股份有限公司 | Laser projection device |
| US11831126B2 (en) | 2019-06-20 | 2023-11-28 | Hisense Laser Display Co., Ltd | Laser projection device |
| CN111474705A (en) * | 2020-05-13 | 2020-07-31 | 苏州路之遥科技股份有限公司 | Single-week display device and display method thereof |
| CN111474706A (en) * | 2020-05-13 | 2020-07-31 | 苏州路之遥科技股份有限公司 | Rotating curved surface reflection graph display method |
| CN111474706B (en) * | 2020-05-13 | 2022-05-17 | 苏州路之遥科技股份有限公司 | Rotating curved surface reflection graph display method |
| CN111474705B (en) * | 2020-05-13 | 2022-08-09 | 苏州路之遥科技股份有限公司 | Single-week display device and display method thereof |
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