CN100529924C - Electro-optical device and electronic apparatus including the same - Google Patents
Electro-optical device and electronic apparatus including the same Download PDFInfo
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- CN100529924C CN100529924C CNB2006101150622A CN200610115062A CN100529924C CN 100529924 C CN100529924 C CN 100529924C CN B2006101150622 A CNB2006101150622 A CN B2006101150622A CN 200610115062 A CN200610115062 A CN 200610115062A CN 100529924 C CN100529924 C CN 100529924C
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Abstract
The present invention provides an electro-optical device such as a liquid crystal device etc, wherein the signals in the controlling scanning direction are stably supplied to the scan line driver circuit to prevent the miss work of the scan line driver circuit. The electro-optical device is provided, on the substrate, with: a plurality of pixel portions, a plurality of scanning lines and a plurality of data lines disposed in the pixel area, for supplying the scanning signals to the scanning line drive circuit driving the plurality of scanning lines. The electro-optical device is further provided with a forward-direction control signal for controlling the scanning line drive circuit to supply the scanning signals to the plurality of scanning lines in a first order, a reverse-direction control signal for controlling the scanning line drive circuit to supply the scanning signals to the plurality of scanning lines in a second order, which is the reverse of the first order; wherein the forward-direction control signal and the reverse-direction control signal are supplied to a reverse-direction control signal generating circuit of the scanning line drive circuit.
Description
Technical field
The present invention relates to electro-optical device such as liquid-crystal apparatus for example and possess this electro-optical device, for example the technical field of electronic equipment such as liquid crystal projector.
Background technology
This electro-optical device in the occasion that is encased in liquid crystal projector for example etc. etc., requires to form the image that for example spins upside down sometimes according to the position relation of optical system, up and down or the image that aboutly overturns etc.For example, be in three compound plate formula color projectors that form of light valve combination with the liquid-crystal apparatus, white light is from the light source outgoing, modulated by the light valve of usefulness of all kinds after look separates up to temporarily pressing via semi-transparent semi-reflecting lens, catoptron, prism etc., and then synthesizing once more between a kind of light thereafter, exist by the order of reflection of semi-transparent semi-reflecting mirror reflection be even number look light and be the light of the look of odd number.Thereby for example the light valve of the G in the middle of the light valve of RGB etc. produces the necessity that makes the image upset with regard to the light of any look.And then, no matter compound plate formula or one-board are if can show the image that for example spins upside down, then for example liquid crystal projector, even be the ground putting type that is arranged at ground commonly, the suspension type that is provided with as being installed on ceiling on the contrary also can be used.
In order to carry out this flip displays, display device of operative orientation that can the switched scan line drive circuit etc. by the application's applicant, is for example disclosing in the patent documentation 1.In patent documentation 1 in the disclosed technology, in the shift register that constitutes scan line drive circuit with device that can two-way operation, bidirectional shift register just, by the switched scan direction, the switching standards image shows with flipped image and shows.
Patent documentation 1: the spy opens the 2004-139111 communique
But, in above-mentioned technology, be necessary that separating supply from the external circuit and the control signal of reference direction is used for making the anti-phase control signal in direction of scanning.Therefore, exist have to the control signal of for example reference direction dividually, the external circuit-connecting terminal of the control signal that is used for supplying with anti-phase direction is set, from the such technical matters of wiring of the special use of its extension.And then, because it is very long to the routing path of the supply usefulness of the control signal of scan line drive circuit from for example external circuit-connecting terminal, be subjected to possibility so exist control signal, also exist and between the control signal of the control signal of reference direction and anti-phase direction, may produce phase place, amplitude, waveform etc. and depart from such technical matters from the The noise of other circuit.
Summary of the invention
The present invention forms in view of for example the problems referred to above, purpose be to provide a kind of can the signal stabilization of gated sweep direction supply to scan line drive circuit, can prevent the electro-optical device that delays work in the scan line drive circuit.
Electro-optical device of the present invention in order to address the above problem, possesses on substrate: a plurality of pixel portions; Be routed at multi-strip scanning line and many data lines of the pixel region that this a plurality of pixel portions arranges; Sweep signal is supplied to the scan line drive circuit of aforementioned sweep trace; And anti-phase direction control signal generative circuit, it is the positive direction control signal of the 1st order based on being used for controlling aforementioned scan line drive circuit so that make the order that aforementioned multi-strip scanning line is supplied with aforementioned sweep signal, generation be used for controlling aforementioned scan line drive circuit in case make it into the anti-phase direction control signal of anti-phase the 2nd order of aforementioned the 1st order, aforementioned positive direction control signal and aforementioned anti-phase direction control signal are supplied to aforementioned scan line drive circuit.
According to electro-optical device of the present invention, then when its work, picture signal supplies to pixel portions by for example data line drive circuit via data line, and by scan line drive circuit, sweep trace is selected successively.That is to say that sweep signal supplies to pixel portions successively via sweep trace.And for example,, pixel portions is supplied with picture signal via data line by being parallel to the supply of this sweep signal, and for example drive the electro-optical substance of the liquid crystal that is held between pixel electrode and counter electrode etc. in each pixel portions, carry out driven with active matrix thus.That is to say, locate to carry out the image demonstration in pixel region or pixel array region (perhaps being called " image display area ") that pixel portions is arranged.
In the present invention particularly, on substrate, possesses anti-phase direction control signal generative circuit.Anti-phase direction control signal generative circuit based on be used for the gated sweep line drive circuit so that making the order that the multi-strip scanning line is supplied with sweep signal is the positive direction control signal of the 1st order, generate being used for the gated sweep line drive circuit in case make it into the anti-phase direction control signal of anti-phase the 2nd order of the 1st order.The positive direction control signal is supplied with via external circuit-connecting terminal from for example external circuit.The positive direction control signal be the gated sweep line drive circuit in case as the 1st order for for example with the signal of the sequentially feeding sweep signal of the top-down direction of pixel region, anti-phase direction control signal is the gated sweep line drive circuit so as the 2nd anti-phase order for for example with the signal of the sequentially feeding sweep signal of the direction from bottom to top of pixel region.That is to say that scan line drive circuit is in occasion that drives based on the positive direction control signal and the occasion that drives based on anti-phase direction control signal, shown image becomes mutual upset on pixel region.Moreover the upset that this image shows is the function that necessitates especially in the occasion that electro-optical device is applied to projector etc.
And then anti-phase direction control signal generative circuit supplies to scan line drive circuit to positive direction control signal and anti-phase direction control signal.Thus, scan line drive circuit can supply to sweep trace to sweep signal with the 1st order or with anti-phase the 2nd order of the 1st order successively based on the some of positive direction control signal and anti-phase direction control signal.Thereby, for example can select whether to make image to show upset by user's selection.
In addition, in the present invention particularly, by be located on the substrate, just the anti-phase direction control signal generative circuit of substrate internally-arranged type generates anti-phase direction control signal on substrate.Thus, there is no need to be provided with and be used for supplying with the external circuit-connecting terminal of anti-phase direction control signal from external circuit.Thereby, there is no need to be provided with the external circuit-connecting terminal that is used for supplying with anti-phase direction control signal, from the wiring of the special use of its extension, correspondingly can effectively utilize the space on the substrate, perhaps, can be in order to replace anti-phase direction control signal to supply with other control signals etc. and use external circuit-connecting terminal.And then, can be reduced in also between positive direction control signal and the anti-phase direction control signal that The noise etc. produces because of being subjected to different mutually degree from other wirings, circuit, the departing from of phase place, amplitude, waveform etc.
As above explanation, according to electro-optical device of the present invention, then can supply to scan line drive circuit to positive direction control signal and anti-phase direction control signal reliably, can for example select whether to make image to show upset by user's selection.
In a form of electro-optical device of the present invention, two aforementioned scan line drive circuits and aforementioned anti-phase direction control signal generative circuit are respectively arranged, aforementioned two scan line drive circuits dispose along a pair of the 1st limit of aforesaid base plate respectively in the neighboring area of the periphery that is positioned at the plain zone of said image respectively, aforementioned two anti-phase direction control signal generative circuits correspond respectively to each of aforementioned two scan line drive circuits, are located at aforementioned neighboring area.
According to this form, then anti-phase direction control signal generative circuit is: corresponding to each of two scan line drive circuits, and two set anti-phase direction control signal generative circuits of the various piece in the middle of the neighboring area preferably along the 1st limit.Thus, the occasion that only is provided with anti-phase direction control signal generative circuit is compared, and can supply with stable positive direction control signal and anti-phase direction control signal.For example, by the distance between anti-phase direction control signal generative circuit and the corresponding scanning line driving circuit is close to: make noise from other circuit, wiring not enter the degree that the degree of positive direction control signal and anti-phase direction control signal or positive direction control signal and anti-phase direction control signal do not decay because of cloth line resistance etc., can supply with more stable positive direction control signal and anti-phase direction control signal.Thereby, can prevent delaying work of scan line drive circuit, final, can carry out high-grade image and show.
In another form of electro-optical device of the present invention, two aforementioned scan line drive circuits are arranged, aforementioned two scan line drive circuits dispose along a pair of the 1st limit of aforesaid base plate respectively in the neighboring area of the periphery that is positioned at the plain zone of said image respectively, and aforementioned anti-phase direction control signal generative circuit is disposed between aforementioned a pair of the 1st limit in aforementioned neighboring area.
According to this form, then anti-phase direction control signal generative circuit is disposed between a pair of the 1st limit in the neighboring area, in other words, near a certain side's on 2nd limit adjacent central authorities, just compare position configuration near the central authorities on this side's limit with the two ends on this side's limit with the 1st limit.Thus, to identical positive direction control signal and anti-phase direction control signal on can supplying with almost or put into practice along each of two scan line drive circuits that each disposed on a pair of the 1st limit of substrate at place, the neighboring area of the periphery that is positioned at pixel region.Thereby, can be almost or practice on eliminate the difference of two work between scan line drive circuit fully.
In another form of electro-optical device of the present invention, on aforesaid base plate, also possesses the external circuit-connecting terminal that is used for supplying with aforementioned positive direction control signal, aforementioned anti-phase direction control signal generative circuit is disposed at a side of comparing close aforementioned scan line drive circuit with the said external circuit connecting terminals the routing path from aforementioned external circuit-connecting terminal to aforementioned scan line drive circuit.
According to this form, then anti-phase direction control signal generative circuit is disposed at external circuit-connecting terminal and compares near scan line drive circuit one side in the routing path from the external circuit-connecting terminal to the scan line drive circuit.That is to say that look from anti-phase direction control signal generative circuit, external circuit-connecting terminal is far away than scan line drive circuit.Thus, be disposed at compared with anti-phase directional control circuit by the formed cloth line resistance of the wiring from external circuit-connecting terminal to anti-phase directional control circuit or wiring capacitance and compare the occasion of comparing splicing ear one side near external circuit with scan line drive circuit and want big.Thereby, even in the mill or make the back and put on the occasion of external circuit-connecting terminal, also can reduce or prevent the generation of the electrostatic breakdown of anti-phase direction control signal generative circuit at unexpected static.
In the form that also possesses the said external circuit connecting terminals, aforementioned anti-phase direction control signal generative circuit is disposed at the neighboring area of the periphery that is arranged in aforementioned pixel region, and aforementioned relatively pixel region is positioned at the zone with a regional opposite side that disposes the said external circuit connecting terminals.
In this occasion, in few zone, zone that the external circuit-connecting terminal that for example is used for supplying with picture signal, various control signals, wiring geometric ratio dispose external circuit-connecting terminal, the anti-phase direction control signal generative circuit of (dead space) configuration in other words in the dead space.Thus, do not increase the area on the substrate, perhaps, carry out the design alteration of other circuit or wiring etc. hardly and promptly can dispose anti-phase direction control signal generative circuit.
In another form of electro-optical device of the present invention, also possesses subtend substrate with the configuration of aforesaid base plate subtend, seal with bonding aforesaid base plate and aforementioned subtend substrate, aforementioned anti-phase direction control signal generative circuit, the plane is seen on aforesaid base plate, is disposed at aforementioned pixel region and forms between the sealing area of aforementioned seal in the formed zone.
According to this form, then substrate and subtend substrate come bonding by the seal that for example light-cured resin etc. forms.Form the sealing area of seal, be positioned at surround pixel region around the position, for example be positioned at the determined pixel zone around the outer rim of frame region with at a distance and have a square shape.
Particularly, anti-phase direction control signal generative circuit is disposed between pixel region and sealing area in the formed zone in this form.Thus, after with substrate and subtend substrate bonding, can reduce electricity or physical property influence from the outside to anti-phase direction control signal generative circuit.That is to say, can protect anti-phase direction control signal generative circuit.
In another form of electro-optical device of the present invention, also possess the frame photomask on every side of the aforementioned pixel region of regulation, aforementioned anti-phase direction control signal generative circuit is disposed in the frame region that is formed with aforementioned frame photomask.
According to this form, then anti-phase direction control signal generative circuit is disposed in the frame region.Frame region for example, is the occasion of rectangle at pixel region, is to have the zone that predetermined width is given the deburring on every side of this rectangle.Thereby, frame region for example, plane earth is looked on substrate, has square shape.Thus, can show almost or put into practice have the anti-phase direction control signal generative circuit of harmful effect ground configuration fully to image.And then, also there is no need to strengthen substrate size.Moreover this frame region both can be for being positioned at the zone between pixel region and the neighboring area, also can be the part of joining with pixel region of neighboring area.No matter any, the edge of pixel region is stipulated by the frame photomask.
In another form of electro-optical device of the present invention, aforementioned scan line drive circuit comprises shift register, it is from the supply transmission signal regularly of the aforementioned sweep signal of the controls of output successively at different levels, and this driving at different levels order can be anti-phase based on aforementioned positive direction control signal and aforementioned anti-phase direction control signal.
According to this form, the driving direction positive of the shift register by making scan line drive circuit based on positive direction control signal or anti-phase direction control signal or anti-phase then can be realized the direction of the supply anti-phase of sweep signal.That is to say that shift register is so-called " bidirectional shift register ".If control is built in the driving direction of the shift register of scan line drive circuit like this, then can carry out the control of direction of scanning fairly simplely.
Electronic equipment of the present invention is in order to address the above problem the electro-optical device that possesses the invention described above.
According to electronic equipment of the present invention, then owing to possess the electro-optical device of the invention described above, so can realize can high-grade ground show various electronic equipments such as the video tape recorder of projection display device, pocket telephone, electronic documentation, word processor, find a view type or monitor type directly perceived, workstation, video telephone set, POS terminal, touch panel.In addition, as electronic equipment of the present invention, can also realize for example electrophoretic apparatus such as electronics page etc.
Description of drawings
Fig. 1 is the planimetric map of expression according to the overall formation of the liquid-crystal apparatus of the 1st example.
Fig. 2 is the cut-open view of the H-H ' of Fig. 1.
Fig. 3 is the block diagram of expression according to the formation of the major part of the liquid-crystal apparatus of the 1st example.
Fig. 4 is the block diagram of expression according to the electricity formation of the pixel portions of the liquid-crystal apparatus of the 1st example.
Fig. 5 is the circuit diagram according to the anti-phase direction control signal generative circuit of the liquid-crystal apparatus of the 1st example.
Fig. 6 be in the 2nd example with the block diagram of Fig. 3 with content.
Fig. 7 is the planimetric map of expression as the formation of the projector of one of electronic equipment that uses electro-optical device example.
Fig. 8 is the skeleton view of expression as the formation of the personal computer of one of electronic equipment that uses electro-optical device example.
Fig. 9 is the skeleton view of expression as the formation of the pocket telephone of one of electronic equipment that uses electro-optical device example.
The explanation of label
6a ... data line, 7 ... sample circuit, 9a ... pixel electrode, 10 ... tft array substrate, 10a ... image display area, 11a ... sweep trace, 20 ... the subtend substrate, 21 ... counter electrode, 23 ... photomask, 50 ... liquid crystal layer, 52 ... seal, 52a ... sealing area, 53 ... the frame photomask, 53a ... frame region, 80 ... anti-phase direction control signal generative circuit, 101 ... data line drive circuit, 102 ... external circuit-connecting terminal, 104 ... scan line drive circuit, DIRY ... the positive direction control signal, DIRYB ... anti-phase direction control signal, G1, Gm ... sweep signal
Embodiment
Below, describe with reference to accompanying drawing with regard to example of the present invention.In following example, be example with liquid-crystal apparatus as the tft active matrix type of drive of the driving circuit internally-arranged type of one of electro-optical device of the present invention example.
＜the 1 example 〉
Liquid-crystal apparatus to the 1st example describes referring to figs. 1 through Fig. 5.
At first, see figures.1.and.2, just, describe according to the overall formation of the liquid-crystal apparatus of this example.Here Fig. 1 is the planimetric map of expression according to the formation of the liquid-crystal apparatus of this example, and Fig. 2 is the cut-open view at the H-H ' line place of Fig. 1.
In Fig. 1 and Fig. 2, in liquid-crystal apparatus according to this example, tft array substrate 10 and the configuration of subtend substrate 20 subtends.Enclose liquid crystal layer 50 between tft array substrate 10 and subtend substrate 20, tft array substrate 10 and subtend substrate 20 are by being positioned at as bonding mutually according to the set seal 52 that is made of for example light-cured resin of the sealing area 52a around image display area 10a of one of " pixel region " of the present invention example.As shown in fig. 1, sealing area 52a, look in the plane on tft array substrate 10, is positioned at the position on every side that surrounds image display area 10a, has essentially rectangular shaped as frame shape.
In Fig. 1, be parallel to the inboard of the sealing area 52a that disposes seal 52, be provided with the frame photomask 53 of the light-proofness on every side of specified image viewing area 10a in subtend substrate 20 sides.Be formed with the frame region 53a of frame photomask 53, plane earth is looked on tft array substrate 10, has the rectangle frame shape.
In the middle of the neighboring area, be positioned at the zone in the outside of the sealing area 52a that disposes seal 52, one side be provided with data line drive circuit 101 and external circuit-connecting terminal 102 along tft array substrate 10.Be positioned at inboard frame region 53a than the sealing area 52a along this one side, sample circuit 7 is arranged to be covered by frame photomask 53.And then, though do not draw here, between two scan line drive circuits 104 that connect the both sides that are located at image display area 10a like this, along remaining one side of tft array substrate 10, and, be provided with a plurality of wirings 105 (with reference to Fig. 3) by frame photomask 53 mulched grounds.In addition, scan line drive circuit 104 is at the frame region 53a along the inboard of the sealing area 52a on adjacent on one side therewith both sides, by the 53 mulched ground settings of frame photomask.In addition, anti-phase direction control signal generative circuit 80 described later corresponding to two scan line drive circuits 104 separately, is arranged at the various piece along this one side among the frame region 53a respectively.In addition, on tft array substrate 10, with the zone of four bight subtends of subtend substrate 20, disposing and be used for the Lead-through terminal up and down 106 that connects between two substrates with conduction element 107 up and down.Whereby, between tft array substrate 10 and subtend substrate 20, can be taken as and conduct.
On tft array substrate 10, form and to be used for being electrically connected external circuit-connecting terminal 102, with data line drive circuit 101, scan line drive circuit 104, Lead-through terminal 106 etc. draws around wiring up and down.
In Fig. 2, on tft array substrate 10, form the rhythmo structure of wirings such as being incorporated with the TFT (thin film transistor (TFT)) that uses as the pixel switch of driving element, sweep trace, data line.At image display area 10a, be provided with pixel electrode 9a with the upper strata of wirings such as TFT, sweep trace, data line at pixel switch.On the other hand, on subtend substrate 20 and faces tft array substrate 10 subtends, form photomask 23.And, on photomask 23, form the counter electrode 21 that constitutes by transparent materials such as ITO with a plurality of pixel electrode 9a subtends ground.In addition, liquid crystal layer 50 is made of for example liquid crystal a kind of or that mix multiple nematic liquid crystal, between this a pair of alignment films, is taken as predetermined state of orientation.
Moreover, though do not draw here, but also can be on tft array substrate 10, except data line drive circuit 101, scan line drive circuit 104, form and be used for checking that manufacturing is or the check circuit of the quality of this liquid-crystal apparatus when dispatching from the factory, defective etc., check with figure etc. midway.
Next, with reference to Fig. 3 and Fig. 4, the main composition of a liquid-crystal apparatus describes at this point.Here Fig. 3 is the block diagram of expression according to the formation of the major part of the liquid-crystal apparatus of this example.Fig. 4 is the block diagram that the electricity of remarked pixel portion constitutes.
In Fig. 3,,, form driving circuits such as scan line drive circuit 104, data line drive circuit 101, sample circuit 7 in the neighboring area of the periphery that is positioned at the image display area 10a on its tft array substrate 10 according to the liquid-crystal apparatus of this example.
As shown in Figure 3, Y clock signal C LY (with anti-phase Y clock signal C LYB), Y start dialing signal DY supply to scan line drive circuit 104 from external circuit via external circuit-connecting terminal 102.And then as shown in Figure 4, positive direction control signal DIRY and anti-phase direction control signal DIRYB supply to scan line drive circuit from anti-phase direction control signal generative circuit 80 described later.As described later, scan line drive circuit 104 based on these signals by sweep signal G1 ..., Gm this one the order or by therewith one the order anti-phase order generate these signals successively, with its output.
In Fig. 3, X clock signal C LX (with anti-phase X clock signal C LXB) and X start dialing signal DX supply to data line drive circuit 101 from external circuit via external circuit-connecting terminal 102.Data line drive circuit 101, if X start dialing signal DX input, then by based on the X clock signal C LX timing of (with anti-phase X clock signal XCLXB), generate successively and export sampled signal S1 ..., Sn.
In Fig. 3, in the liquid-crystal apparatus according to this example, and then the image display area 10a in the central authorities that occupy this tft array substrate is provided with and is arranged in the rectangular a plurality of pixel portions that possess pixel electrode 9a respectively.
As shown in Figure 4, form pixel electrode 9a respectively and switch is controlled the TFT 30 that corresponding pixel electrode 9a uses in a plurality of pixel portions, supply with picture signal VS1, VS2 ..., VSn data line 6a be electrically connected on the source of this TFT 30.Be written into data line 6a picture signal VS1, VS2 ..., VSn can be according to this an order press the line sequentially feeding, also can be each other to adjacent many data lines 3, by the group supply.Moreover, as shown in Figure 3, in this example, constitute: picture signal VS1, VS2 ..., VSn corresponds respectively to each of picture signal VID1～VID6 that serial-to-parallel is launched into 6 phases, to the group of 6 data line 6a by every group of supply.About the phase demodulation number of picture signal (just, the serial number of the picture signal that serial-to-parallel launches), be not limited to 6 phases, for example, also can constitute: be launched into the picture signal of 9 phases, 12 phases, 24 equal a plurality of phases, with number being the group supply of one group data line 6a corresponding to this expansion number.
In Fig. 4, gate electrode 3a is electrically connected on the grid of TFT 30, constitute as hereinafter describing in detail from scan line drive circuit 104 with predetermined timing, pulsedly by sweep signal G1, G2 ..., Gm this one the order or therewith one the order anti-phase order these signals are put on sweep trace 11a and gate electrode 3a successively by line.Pixel electrode 9a is electrically connected on the leakage of TFT 30, to as the TFT30 of on-off element by during certain by closed its switch, the picture signal VS1, the VS2 that are supplied with from data line 6a ..., VSn writes with predetermined timing.
Via pixel electrode 9a be written to the predetermined level of liquid crystal picture signal VS1, VS2 ..., VSn and keeping between the formed counter electrode of subtend substrate certain during.Liquid crystal changes by orientation or the order that makes elements collection because of the voltage level that is applied, and light is modulated, and realized that gray shade scale shows.If normal white mode, then corresponding to each pixel being the voltage that applied of unit and the transmissivity of incident light is reduced, if often black pattern, then corresponding to each pixel being the voltage that applied of unit and the transmissivity of incident light is increased, as totally having light corresponding to the contrast of picture signal from the electro-optical device outgoing.
And then, the picture signal leakage loss that keeps in order to prevent, and between pixel electrode 9a and counter electrode formed liquid crystal capacitance extra storage electric capacity 70 in parallel.
Next, with reference to Fig. 1 and Fig. 3 to Fig. 5, just the anti-phase direction control signal generative circuit according to this example describes.Here Fig. 5 is the circuit diagram of the electricity formation of the anti-phase direction control signal generative circuit of expression.
In Fig. 3 and Fig. 4, in the liquid-crystal apparatus of this example, particularly, on tft array substrate 10, possesses anti-phase direction control signal generative circuit 80.Anti-phase direction control signal generative circuit 80, based on make the sweep signal G1 that supplies with multi-strip scanning line 11a ..., Gm order be among a Fig. 3 order, for example image display area 10a for top-down direction sequentially, the positive direction control signal DIRY of gated sweep line drive circuit 104 usefulness, generation make it into another order of a reversed in order, for example among Fig. 3 of image display area 10a be from bottom to top direction sequentially, the anti-phase direction control signal of gated sweep line drive circuit 104 usefulness.Scan line drive circuit 104 based on the driven occasion of positive direction control signal DIRY with based on the driven occasion of anti-phase direction control signal DIRYB, the shown image of image display area 10a overturns mutually.Moreover the turn over function that this image shows is necessary especially in the occasion that liquid-crystal apparatus is applied to projector etc.
And then in Fig. 4, particularly, anti-phase direction control signal generative circuit 80 supplies to scan line drive circuit 104 to positive direction control signal DIRY and anti-phase direction control signal DIRYB in this example.Thus, scan line drive circuit 104 based on positive direction control signal DIRY and anti-phase direction control signal DIRYB certain with an order or with anti-phase another order of order sweep signal G1 ..., Gn supplies to sweep trace 11a successively.Thereby, can select whether to make the image of image display area 10a to show upset by for example user's selection.
In addition, in Fig. 3, particularly, by being arranged on the tft array substrate 10, just the anti-phase direction control signal generative circuit 80 of substrate internally-arranged type generates anti-phase direction control signal DIRYB on FTF array base palte 10 in this example.Thus, there is no need to be provided with and be used for supplying with the external circuit-connecting terminal 102 of anti-phase direction control signal DIRYB from external circuit.Thereby, can unnecessary setting be used for supplying with the external circuit-connecting terminal 102 of anti-phase direction control signal DIRYB, correspondingly can effectively utilize the space on the tft array substrate 10, perhaps, supply with other control signals etc. in order to replace anti-phase direction control signal DIRYB and can utilize external circuit-connecting terminal 102.
Here, with reference to Fig. 5, describe with regard to the concrete formation of anti-phase direction control signal generative circuit 80.As shown in Figure 5, anti-phase direction control signal generative circuit 80 is made of a plurality of phase inverters 180.If positive direction control signal DIRY is input to anti-phase direction control signal generative circuit 80, then via four phase inverters output positive direction control signal DIRY as buffer circuit, and via as three phase inverters outputs of negative circuit and buffering circuit with the current potential of positive direction control signal DIRY with respect to reference potential anti-phase anti-phase direction control signal DIRYB.Moreover the formation of anti-phase direction control signal generative circuit 80 is not limited to the formation shown in Fig. 5, for example, also can increase and decrease the connection progression of phase inverter.If constitute anti-phase direction control signal generative circuit 80 like this, then can almost there be the positive direction control signal DIRY and the anti-phase direction control signal DIRYB that generate outgoing side of phase place, amplitude, waveform etc. mutually with departing from.In other words, if, even at the positive direction control signal DIRY of input side, and produce departing from of phase place, amplitude, waveform etc. between the anti-phase direction control signal DIRYB of outgoing side, there is not any problem yet.
In Fig. 3, particularly, anti-phase direction control signal generative circuit 80 corresponding to two scan line drive circuits 104 each, in the central various piece along the 1st limit of frame region 53a (with reference to Fig. 1), respectively is provided with one in this example once more.In other words, plane earth is looked on tft array substrate 10, respectively is provided with one in each the zone of upside that is positioned at two scan line drive circuits 104.Thus, compare with the occasion that only is provided with an anti-phase direction control signal generative circuit 80 and can supply with stable positive direction control signal DIRY and anti-phase direction control signal DIRYB.And then, as shown in Figure 3, the distance between anti-phase direction control signal generative circuit 80 and the corresponding scanning line driving circuit 104 is close to noise from other circuit or wiring and does not enter the degree that the degree of positive direction control signal DIRY and anti-phase direction control signal DIRYB or positive direction control signal DIRY and anti-phase direction control signal DIRYB do not decay because of cloth line resistance etc.Thus, can supply to scan line drive circuit 104 to more stable positive direction control signal DIRY and anti-phase direction control signal DIRYB by anti-phase direction control signal generative circuit 80.Thereby, can prevent delaying work of scan line drive circuit 104.In addition, can be reduced between positive direction control signal DIRY and anti-phase direction control signal DIRYB because of be subjected to The noise etc. with different degree mutually issuable, the departing from of phase place, amplitude, waveform etc.That is to say, with the display characteristic when the positive direction control signal DIRY and with the display characteristic when the anti-phase direction control signal DIRYB, except overturning, can be almost equal.
And then, in Fig. 3, particularly, anti-phase direction control signal generative circuit 80 is disposed at external circuit-connecting terminal 102 and compares near scan line drive circuit 104 1 sides 104 the routing path from external circuit-connecting terminal 102 to scan line drive circuit in this example.That is to say that look from anti-phase direction control signal generative circuit 80, external circuit-connecting terminal 102 is far away than scan line drive circuit 104.Thus, by formed cloth line resistance or wiring capacitance are disposed to compare with scan line drive circuit 104 near the occasion of external circuit-connecting terminal 102 1 sides compared with anti-phase directional control circuit 80 and want big from external circuit-connecting terminal 102 to the wiring of anti-phase directional control circuit 80.Thereby, even in the mill or make the occasion that the unexpected static in back puts on external circuit-connecting terminal 102, also can reduce or prevent the electrostatic breakdown of anti-phase direction control signal generative circuit 80.
In addition, in Fig. 3, anti-phase direction control signal generative circuit 80 is disposed at the neighboring area of the periphery that is arranged in image display area 10a, and image display area 10a is positioned at and the zone that disposes the regional opposition side of external circuit-connecting terminal 102 relatively.That is to say that anti-phase direction control signal generative circuit 80 is disposed to draw around wiring wiring geometric ratios such as 90 and disposes the zone that the zone of external circuit-connecting terminal 102 will be lacked, and in other words is disposed at the dead space.Thus, do not increase the area on the tft array substrate 10, perhaps carry out the design alteration of other circuit or wiring etc. hardly and just can dispose anti-phase direction control signal generative circuit 80.
In Fig. 1, particularly, as mentioned above, anti-phase direction control signal generative circuit 80 is disposed in the frame region 53a in this example.Thus, demonstration almost or in the practice does not have harmful effect fully to image.And then, in order to dispose anti-phase direction control signal generative circuit 80, also there is no need to strengthen the size of tft array substrate 10.And then anti-phase direction control signal generative circuit 80 is disposed between image display area 10a and sealing area 52a in the formed zone.Thus, by after bonding, can reduce electricity or physical property influence at tft array substrate 10 and subtend substrate 20 from the outside to anti-phase direction control signal generative circuit 80.That is to say, can protect anti-phase direction control signal generative circuit 80.
Next, with reference to Fig. 4, describe with regard to the formation of scan line drive circuit.
In Fig. 4, in this example particularly, scan line drive circuit 104 comprises shift register 104A, its from different levels export successively gated sweep signal G1 ..., Gm supply transmission signal regularly, and should driving at different levels in proper order can be anti-phase based on positive direction control signal DIRY and anti-phase direction control signal DIRYB.That is to say that scan line drive circuit 104 comprises the shift register 104A as so-called " bidirectional shift register ".Thus, the driving direction positive of the shift register 104A by making scanning line driving portion 104 based on positive direction control signal DIRY or anti-phase direction control signal DIRYB or anti-phase can carry out the direction of the supply anti-phase of sweep signal.Thereby, by controlling the driving direction of the shift register 104A that is built in scan line drive circuit 104 like this, can carry out the control of direction of scanning fairly simplely.
As above explanation, liquid-crystal apparatus according to this example, then can supply to scan line drive circuit 102 to direction control signal DIRY and anti-phase control signal DIRYB reliably, can select whether to make image to show upset by for example user's selection.
＜the 2 example 〉
Electro-optical device to according to the 2nd example describes with reference to Fig. 6.Here Fig. 6 be in the 2nd example with the block diagram of Fig. 3 with content.Moreover, in Fig. 6,, suitably omit their explanation to giving samely with reference to label with the same inscape of the inscape shown in Fig. 3 according to the 1st example.
In Fig. 6, in this example particularly, anti-phase direction control signal generative circuit 80 is disposed at the 1st limit with image display area 10a (just among Fig. 6, the limit in left side and the limit on right side) adjacent the 2nd limit is (just among Fig. 6, the limit of upside and the limit of downside) in the middle of upside the limit by central authorities, just be disposed at the position of comparing with the two ends on the limit of upside near the central authorities on the limit of upside.Thus, can to the neighboring area of the periphery that is positioned at image display area 10a along a pair of the 1st limit of tft array substrate 10 each disposed, in other words to be disposed at image display area 10a about each of two scan line drive circuits 104 supply with almost or preferably identical positive direction control signal DIRY and anti-phase direction control signal DIRYB.Thereby, can be almost or preferably eliminate the difference of the work of 104 of two scan line drive circuits fully, can prevent delaying work of electro-optical device.
In addition, because by forming anti-phase direction control signal generative circuit 80 at frame region 53a, can only draw around the zone of wiring always expeditiously circuit is set, so very big effect is also arranged in the miniaturization of electro-optical device.
(electronic equipment)
Next, the occasion that just above-mentioned liquid-crystal apparatus as electro-optical device is applied to various electronic equipments describes.
At first, just the projector of this liquid-crystal apparatus as light valve described.Fig. 7 is the planimetric map of the configuration example of expression projector.Shown in Fig. 7 like this,, be provided with the lamp unit 1102 that constitutes by white light sources such as Halogen lamp LEDs in projector 1100 inside.From then on the emitted projected light in a lamp unit 1102 is by being disposed at four catoptron 1106 and two dichronic mirror 1108 three primary colors that are separated into RGB of photoconduction in member 1104, is incident in as liquid crystal panel 1110R, 1110B and 1110G corresponding to the light valve of each primary colors.
The formation of liquid crystal panel 1110R, 1110B and 1110G is identical with above-mentioned liquid-crystal apparatus, is driven respectively by the primary signal of the R that supplies with from imaging signal processing circuit, G, B.And the light of being modulated by these liquid crystal panels is incident in colour splitting prism 1112 from three directions.In this colour splitting prism 1112,90 ° of R and B anaclasis, G light directly advances on the other hand.Thereby image of all kinds is synthesized, and the result is via projecting lens 1114, and colour image projection is to screen etc.
Here, if be conceived to the demonstration picture of each liquid crystal panel 1110R, 1110B and 1110G, then the demonstration picture of liquid crystal panel 1110G just need overturn about the demonstration picture of relative liquid crystal panel 1110R, 1110B.
Moreover, because by dichronic mirror 1108, be incident in liquid crystal panel 1110R, 1110B and 1110G corresponding to the light of R, G, each primary colors of B, so there is no need to be provided with color filter.
Next, the example that just liquid-crystal apparatus is applied to the movable-type personal computer describes.Fig. 8 is the skeleton view of the formation of this personal computer of expression.In Fig. 8, computing machine 1200 is made of with liquid crystal display 1206 main part 1204 that possesses keyboard 1202.This liquid crystal display 1206 constitutes by the additional backlight in the back side of described liquid-crystal apparatus 1005 in front.
And then just the example that liquid-crystal apparatus is applied to pocket telephone describes.Fig. 9 is the skeleton view of the formation of this pocket telephone of expression.In Fig. 9, pocket telephone 1300 also possesses the liquid-crystal apparatus 1005 of reflection-type except that a plurality of action buttons 1302.Liquid-crystal apparatus 1005 in this reflection-type is provided with front light-source in its front as required.
Moreover, except the electronic equipment of reference Fig. 7 to Fig. 9 explanation, can also enumerate liquid crystal TV set, or the video tape recorder of the type of finding a view, monitor type directly perceived, automobile navigation apparatus, beeper, electronic documentation, desk-top calculator, word processor, workstation, video telephone set, the POS terminal possesses the device of touch panel etc.And can apply to these various electronic equipments much less be.
In addition the liquid-crystal apparatus that the present invention illustrates in above-mentioned example, can also apply on silicon substrate, form the reflective liquid crystal device (LCOS) of element, plasma scope (PDP), field emission display (FED, SED), OLED display etc.
The invention is not restricted to above-mentioned example, can not break away from suitably change in the scope of the purport of technical scheme and the overall invention of reading of instructions or design, the electronic equipment of following the electro-optical device of this change and possessing this electro-optical device also belongs to technical scope of the present invention.
Claims (6)
1. electro-optical device is characterized in that possessing on substrate:
A plurality of pixel portions,
Be routed at multi-strip scanning line and many data lines of the pixel region that is arranged with these a plurality of pixel portions,
Sweep signal is supplied with the scan line drive circuit of aforementioned sweep trace, and
Anti-phase direction control signal generative circuit, its based on being used for controlling aforementioned scan line drive circuit so that the order that aforementioned multi-strip scanning line is supplied with aforementioned sweep signal is the positive direction control signal of the 1st order, generation be used for controlling aforementioned scan line drive circuit so that this order for the anti-phase direction control signal of anti-phase the 2nd order of aforementioned the 1st order, aforementioned positive direction control signal and aforementioned anti-phase direction control signal are supplied with aforementioned scan line drive circuit
Two aforementioned scan line drive circuits and aforementioned anti-phase direction control signal generative circuit are respectively arranged,
Aforementioned two scan line drive circuits are respectively in the neighboring area of the periphery that is positioned at the plain zone of said image, and a pair of the 1st limit along aforesaid base plate disposes respectively,
Aforementioned two anti-phase direction control signal generative circuits correspond respectively to each of aforementioned two scan line drive circuits, are arranged at aforementioned neighboring area.
2. electro-optical device as claimed in claim 1 is characterized in that,
On aforesaid base plate, also possess the external circuit-connecting terminal that is used for supplying with aforementioned positive direction control signal,
Aforementioned anti-phase direction control signal generative circuit at the routing path from aforementioned external circuit-connecting terminal to aforementioned scan line drive circuit, is disposed at the said external circuit connecting terminals and compares near aforementioned scan line drive circuit one side.
3. electro-optical device as claimed in claim 1 is characterized in that,
Also possess:
With the subtend substrate of aforesaid base plate subtend configuration and
The seal of bonding aforesaid base plate and aforementioned subtend substrate,
Aforementioned anti-phase direction control signal generative circuit, the plane is seen on aforesaid base plate, is disposed at aforementioned pixel region and forms between the sealing area of aforementioned seal in the formed zone.
4. electro-optical device as claimed in claim 1 is characterized in that,
The frame photomask on every side that also possesses the aforementioned pixel region of regulation,
Aforementioned anti-phase direction control signal generative circuit is disposed in the frame region that is formed with aforementioned frame photomask.
5. electro-optical device as claimed in claim 1 is characterized in that,
Aforementioned scan line drive circuit comprises shift register, this shift register is controlled the supply transmission signal regularly of aforementioned sweep signal from outputs successively at different levels, and can make this driving at different levels order anti-phase based on aforementioned positive direction control signal and aforementioned anti-phase direction control signal.
6. electronic equipment, it possesses electro-optical device as claimed in claim 1.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP242595/2005 | 2005-08-24 | ||
| JP2005242595 | 2005-08-24 | ||
| JP171358/2006 | 2006-06-21 |
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| CN1920648A CN1920648A (en) | 2007-02-28 |
| CN100529924C true CN100529924C (en) | 2009-08-19 |
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| CNB2006101150622A Active CN100529924C (en) | 2005-08-24 | 2006-08-23 | Electro-optical device and electronic apparatus including the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4466710B2 (en) * | 2007-10-04 | 2010-05-26 | エプソンイメージングデバイス株式会社 | Electro-optical device and electronic apparatus |
| JP5798585B2 (en) * | 2013-03-14 | 2015-10-21 | 双葉電子工業株式会社 | Display device, scanning line driving device |
| US10261375B2 (en) | 2014-12-30 | 2019-04-16 | Boe Technology Group Co., Ltd. | Array substrate, driving method thereof and display apparatus |
| CN104460162B (en) * | 2014-12-30 | 2017-06-09 | 京东方科技集团股份有限公司 | A kind of array base palte and its driving method, display device |
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