CN102855852A - Liquid crystal display and overdriving method - Google Patents
Liquid crystal display and overdriving method Download PDFInfo
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- CN102855852A CN102855852A CN201110180820XA CN201110180820A CN102855852A CN 102855852 A CN102855852 A CN 102855852A CN 201110180820X A CN201110180820X A CN 201110180820XA CN 201110180820 A CN201110180820 A CN 201110180820A CN 102855852 A CN102855852 A CN 102855852A
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Abstract
A liquid crystal display and an overdriving method can well achieve multi-picture polarity-reversal playing. A sequential control module of the liquid crystal display receives a video signal, and the overdriving method includes the following operation. When multi-picture polarity-reversal playing is adopted, if a displayed image is polarity-reversed, the sequential control module adopts a first overdriving rule to achieve an overdriving program, and if the displayed image is not polarity-reversed, the sequential control module adopts a second overdriving rule different from the first overdriving rule to achieve the overdriving program.
Description
Technical field
The present invention relates to liquid crystal display, particularly relate to the overdrive technique that the reversal of poles of many pictures is play.
Background technology
About lcd technology, usually use to exchange (AC) type of drive.Polarity by the liquid crystal material driving voltage that repeatedly reverses is overturn liquid crystal material repeatedly, tenure of use thereby prolongation.For example, traditional interchange type of drive has picture counter-rotating (frame inversion), line counter-rotating (row/gate/line inversion), row counter-rotating (column/data/source inversion) and some counter-rotating (dot inversion).
In addition, (overdriving) technology of overdriving also is usually used in can overcoming the inadequate problem of liquid crystal material reaction velocity in the liquid crystal pictorial display driving.For example, about the picture with video picture, traditional overdrive technique can compare it and last picture.The front and back picture GTG value difference of each pixel is different will be used to tabling look-up.Checking result is that overdriving of each pixel revised the GTG value.The described correction GTG value of overdriving will for actual video picture, can solve the puzzlement that front and back picture difference is excessive, the liquid crystal material counter-rotating is too late.
Yet, to use about the video picture of the three-dimensional video signal of shutter (left eye, right eye are play in turn), traditional interchange driving and overdrive technique are also inapplicable.
With reference to figure 1, wherein a certain pixel of diagram liquid crystal panel is in the polarization state of continuous pictures, and employed is traditional interchange Driving technique.As shown in the figure, traditional interchange drives and makes this pixel do reversal of poles in each picture.If be applied to the three-dimensional video signal of video picture shutter, this pixel perseverance provides left eye picture and perseverance to provide the right eye picture in the negative polarity mode in the positive polarity mode.Usually still have difference because the positive and negative polarity of liquid crystal material drives, therefore, about this pixel, the content that left eye and right eye are seen is also uneven.
For the foregoing reasons, the art need to develop special interchange Driving technique for the three-dimensional video signal of shutter.Along with the improvement that exchanges Driving technique, overdrive technique needs that also suitable distortion is arranged.
Summary of the invention
The present invention discloses a kind of liquid crystal display and over-driving method wherein, can realize well that the reversal of poles of many pictures plays, and is conducive to the three-dimensional video signal of video picture shutter or other same technology of using the reversal of poles of many pictures to play.
A liquid crystal display that realizes according to one embodiment of the present invention comprises a liquid crystal panel, one scan line drive, a datawire driver and a sequential control module.This scan line driver and this datawire driver are responsible for supplying a plurality of scanning-line signals and a plurality of data line signal to this liquid crystal panel.This time schedule controller is used for this scan line driver of control and this datawire driver.
Described time schedule controller receives a video signal and comprises following operation.When adopting the reversal of poles of picture more than to play, if the picture of video picture is done reversal of poles, this time-sequence control module can adopt one first rule of overdriving to realize the program of overdriving, and, if without doing reversal of poles, this time schedule controller can adopt and be different from this first one second of rule rule of overdriving of overdriving and realize this program of overdriving with the picture of video picture.It is that every N picture done a reversal of poles that above-mentioned many pictures reversal of poles is play, and N is the numerical value more than 2.
As for a liquid crystal display that realizes according to one embodiment of the present invention display packing of overdriving, wherein receiving has a video signal and may further comprise the steps.At first, judge whether to adopt for the designed reversal of poles of picture more than a broadcast of the three-dimensional video signal of shutter.Under the situation that does not adopt this many pictures reversal of poles to play, adopt one first rule of overdriving to realize the program of overdriving.Under the situation that adopts this many pictures reversal of poles to play, judge also that picture with video picture has or not to do reversal of poles.Under the situation that has adopted this many pictures reversal of poles to play, if with the picture of video picture without doing reversal of poles, then adopt to be different from this first one second of rule rule of overdriving of overdriving and to realize this program of overdriving.Under the situation that has adopted this many pictures reversal of poles to play, if the picture of video picture is done reversal of poles, then adopt this first rule of overdriving to realize this program of overdriving.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, embodiment cited below particularly, and be described with reference to the accompanying drawings as follows.
Description of drawings
The a certain pixel of Fig. 1 diagram liquid crystal panel is in the polarization state of continuous pictures, and employed is traditional interchange Driving technique;
Fig. 2 is a calcspar, the liquid crystal display 200 that diagram realizes according to one embodiment of the present invention;
A kind of embodiment of Fig. 3 diagram Fig. 2 time-sequence control module 208;
When Fig. 4 illustrates then that the three-dimensional video signal of shutter shows, above-mentioned many pictures reversal of poles and can adjust overdrive technique to the effect of a pixel on the liquid crystal panel; And
Fig. 5 is a process flow diagram, a kind of embodiment of diagram overdriving method of LCD of the present invention.
The reference numeral explanation
200～liquid crystal display;
202～liquid crystal panel;
204～scan line driver;
206～datawire driver;
208～time-sequence control module;
210～scanning-line signal;
212～data line signal;
The three-dimensional video signal of 214～shutter;
216～revised the video signal of overdriving;
302～many pictures reversal of poles module;
304～polarity controller;
306～vertical start signal generator;
308～storage unit;
310～the rule of overdriving is chosen logic;
312～the logic of overdriving;
314～impact damper;
402-410～pixel is in the broadcast of different pictures;
CS～control signal;
OD1, OD2～first, second rule of overdriving;
POL～polarity inversion signal;
SEL～index for selection;
STV～vertical start signal;
S502-S510～program step;
TAB1, TAB2～first, second form of tabling look-up of overdriving;
The TAB3 weight parameter.
Embodiment
Fig. 2 is a calcspar, the liquid crystal display 200 that diagram realizes according to one embodiment of the present invention.Liquid crystal display 200 comprises a liquid crystal panel 202, one scan line drive 204, a datawire driver 206 and a sequential control module 208.Scan line driver 204 and the datawire driver 206 responsible a plurality of scanning-line signals 210 of supply and a plurality of data line signal 212 are given liquid crystal panel 202.Time-sequence control module 208 is used for gated sweep line drive 204 and datawire driver 206, and reception has a video signal 214.For the good three-dimensional video signal of shutter of playing, time-sequence control module 208 discloses particular design, comprising the reversal of poles of many pictures and can adjust overdrive technique.Time-sequence control module 208 except supply control signal CS to scan line driver 204 and datawire driver 206, also provide the revised video signal data 216 of overdriving to data driver 206.A kind of embodiment of Fig. 3 diagram time-sequence control module 208.When Fig. 4 illustrates then that the three-dimensional video signal of shutter shows, above-mentioned many pictures reversal of poles and can adjust overdrive technique to the effect of a pixel on the liquid crystal panel.
At first, consult Fig. 4, described many pictures reversal of poles technology is so that the polarity of a pixel is a plurality of pictures just reverses once.Fig. 4 for example can be described as a pair of picture reversal of poles (2frame inversion), per two pictures just carry out a reversal of poles.Thus, play in turn principle for the images of left and right eyes picture of the three-dimensional video signal of shutter, this pixel is no longer only play the left eye picture, is also no longer only play the right eye picture with negative polarity with positive polarity; The image that images of left and right eyes is seen can be than balance.What need special declaration is that mentioned " reversal of poles of many pictures " of this instructions is not limited to " two picture reversal of poles ".In other embodiments, also can three pictures or four pictures or more pictures just carry out a reversal of poles.Herein, so long as two technology that above picture just carries out a reversal of poles all are called " multipolarity inversion technique ".
Described many pictures reversal of poles technology so that the polarity of a pixel have: the situation that need not to do reversal of poles; And the situation that need do reversal of poles.For example, with reference to figure 4, label 402,406 and 410 broadcast namely need not to do reversal of poles, then need do reversal of poles as for the broadcast of label 404 and 408.The rule of overdriving of using on the market at present all is for the example design that reversal of poles is arranged, and inapplicable nothing is made the pixel driver of reversal of poles.Therefore, the overdrive technique of adjusting supplied of Fig. 2 time-sequence control module 208 namely is head it off.Consult Fig. 4, under the operation that can adjust overdrive technique: the broadcast 404 and 408 that needs reversal of poles is to adopt the one first regular OD1 that overdrives; And the broadcast 402,406 and 410 that need not reversal of poles is to adopt to be different from this first one second of regular OD1 regular OD2 that overdrives that overdrives.In one embodiment, the first regular OD1 that overdrives is designed to be better than the second regular OD2 that overdrives.That is to say that to same gray scale variation demand, the first corresponding over-drive operation of regular OD1 of overdriving can be better than the second regular OD2 that overdrives.
The meaning illustration of so-called " first overdrive the corresponding over-drive operation of regular OD1 can be better than the second regular OD2 that overdrives " is as follows: suppose that a certain pixel is changed to GTG n2 by GTG n1, comply with first and drive the corresponding voltage Vn3 that regular OD1 can select GTG n3, comply with second and drive the corresponding voltage Vn4 that regular OD2 then can select GTG n4.If the GTG of this pixel by low uprising (n2＞n1), then the first overdrive GTG that regular OD1 selects is higher than the second the overdrive selected GTG of regular OD2, i.e. n3＞n4; If the GTG of this pixel is by high step-down (n2＜n1), then n3＜n4.
Thus, no matter be that the example of reversal of poles or the example of nonpolarity counter-rotating are arranged, can both there be the corresponding rule of overdriving to make its perfect imaging.
About the detailed design of announcement time-sequence control module, below discuss with Fig. 3 embodiment.
As shown in Figure 3, time-sequence control module 208 includes the reversal of poles of picture more than a module 302, realizes above-mentioned many pictures reversal of poles broadcast for time-sequence control module 208.
In addition, time-sequence control module 208 also can comprise a polarity controller 304 and a vertical start signal generator 306.Polarity controller 304 can be exported a polarity inversion signal POL according to the running of many pictures reversal of poles module 302, is used for the datawire driver 206 of control chart 2.For example, not under the situation of activation, polarity controller 304 each Picture switchs are with regard to the value of reverse reverse signal POL in many pictures reversal of poles module 302; Under the situation of many pictures (N picture, N is more than or equal to 2) reversal of poles module 302 activations, the value of polarity controller 304 every N picture ability reverse reverse signal POL.In addition, vertical start signal generator 306 is responsible for output one vertical start signal STV, is used for this scan line driver 204 of control.For example, vertical start signal STV can be received by first shift registor in the scan line driver, and wherein pulse is with the scanning of each row pixel of primer fluid crystal panel.In one embodiment, described polarity inversion signal POL and vertical start signal STV are also adopted the picture of judging video picture to have or not by time-sequence control module 208 and do reversal of poles.
The time-sequence control module 208 that the embodiment of Fig. 3 discloses comprises that also a storage unit 308, a rule of overdriving chooses logic 310, overdrive logic 312 and an impact damper 314.Storage unit 308 can store one first form TAB1, one second form TAB2 and the weight parameter TAB3 of tabling look-up that overdrive that table look-up that overdrive.The rule of overdriving is chosen 310 of logics and is responsible for output one index for selection SEL and points to the stored content of storage unit 308.The logic of overdriving 312 is used for realizing the program of overdriving according to index for selection SEL content pointed.314 in impact damper is the video signal 214 that buffer storage time-sequence control module 208 receives, and applies the program of overdriving to transfer to the logic 312 of overdriving.
What need special declaration is, storage unit 308 may only have and stores first form TAB1 and the second form TAB2 and without storing weight parameter TAB3 of tabling look-up that overdrives that tables look-up that overdrives.First overdrives, and the form TAB1 that tables look-up be used for to realize first rule (OD1 consults Fig. 4) of overdriving.Second overdrives, and the form TAB2 that tables look-up be used for to realize second rule (OD2 consults Fig. 4) of overdriving.Corresponding, under the situation of many pictures reversal of poles module 302 activations, the rule of overdriving is chosen logic 310 can comprise following operation: when the picture of video picture is done reversal of poles, the first form TAB1 that tables look-up that overdrives that makes that index for selection SEL points to that storage unit 308 stores, making the logic 312 of overdriving is to realize the program of overdriving with the first regular OD1 that overdrives; In with the picture of video picture when doing reversal of poles, the second form TAB2 that tables look-up that overdrives that makes that index for selection SEL points to that storage unit 308 stores, making the logic 312 of overdriving is to realize the program of overdriving with the second regular OD2 that overdrives.Situation as for many pictures reversal of poles module 302 disableds, the first form TAB1 that tables look-up that overdrives that the rule of overdriving chooses that logic 310 can make that index for selection SEL points to that storage unit 308 stores, making the logic 312 of overdriving is to realize the program of overdriving with the first overdrive regular OD1, is same as 302 activations of many pictures reversal of poles module and the picture of video picture is had the situation of the reversal of poles done.
In another embodiment, storage unit 308 may only have and stores first form TAB1 and the weight parameter TAB3 and without storing the second form TAB2 that tables look-up that overdrives of tabling look-up that overdrive.First overdrives, and the form TAB1 that tables look-up be used for to realize first rule (OD1 consults Fig. 4) of overdriving.Weight parameter TAB3 is used for this first content of form TAB1 of tabling look-up of overdriving of weight calculation, to realize second rule (OD2 consults Fig. 4) of overdriving.Corresponding, under the situation of many pictures reversal of poles module 302 activations, the rule of overdriving is chosen logic 310 can comprise following operation: when the picture of video picture is done reversal of poles, the first form TAB1 that tables look-up that overdrives that makes that index for selection SEL points to that storage unit 308 stores, making the logic 312 of overdriving is to realize the program of overdriving with the first regular OD1 that overdrives; In with the picture of video picture when doing reversal of poles, make that index for selection SEL points to that storage unit 308 stores first overdrive table look-up form TAB1 and weight parameter TAB3 both, making the logic 312 of overdriving is to realize the program of overdriving with the second regular OD2 that overdrives.Situation as for many pictures reversal of poles module 302 disableds, the first form TAB1 that tables look-up that overdrives that the rule of overdriving chooses that logic 310 can make that index for selection SEL points to that storage unit 308 stores, making the logic 312 of overdriving is to realize the program of overdriving with the first overdrive regular OD1, is same as 302 activations of many pictures reversal of poles module and the picture of video picture is had the situation of the reversal of poles done.
What need to specify is, in design, the size of weight parameter TAB3 can be much smaller than first size of form TAB1 of tabling look-up of overdriving.For example, weight parameter TAB3 can only store a few numerical value or even single numerical value, can make weight calculation to the first overdrive table look-up content of form TAB1, produce the second regular OD2 that overdrives.Compare with adopting simultaneously the first and second overdrive table look-up embodiment of form TAB1 and TAB2, only adopt the first overdrive table look-up mode of form TAB1 and weight parameter TAB3 can save storage unit 308 costs.
In addition, another embodiment is arranged still, storage unit 308 may store first form TAB1, second form TAB2 and the weight parameter TAB3 three of tabling look-up that overdrive that table look-up that overdrive simultaneously.First overdrives, and the form TAB1 that tables look-up be used for to realize first rule (OD1 consults Fig. 4) of overdriving.Weight parameter TAB3 is used for this second content of form TAB2 of tabling look-up of overdriving of weight calculation.Content after the weight can first be overdrived and is tabled look-up (that is, the concept of TAB1+TAB3*TAB2) of form TAB 1 skew, to realize second rule (OD2 consults Fig. 4) of overdriving.Corresponding, under the situation of many pictures reversal of poles module 302 activations, the rule of overdriving is chosen logic 310 can comprise following operation: when the picture of video picture is done reversal of poles, the first form TAB1 that tables look-up that overdrives that makes that index for selection SEL points to that storage unit 308 stores, making the logic 312 of overdriving is to realize the program of overdriving with the first regular OD1 that overdrives; In with the picture of video picture when doing reversal of poles, first form TAB1, second form TAB2 and the weight parameter TAB3 three of tabling look-up that overdrive that table look-up that overdrive who makes that index for selection SEL points to that storage unit 308 stores, making the logic 312 of overdriving is to realize the program of overdriving with the second regular OD2 that overdrives.Situation as for many pictures reversal of poles module 302 disableds, the first form TAB1 that tables look-up that overdrives that the rule of overdriving chooses that logic 310 can make that index for selection SEL points to that storage unit 308 stores, making the logic 312 of overdriving is to realize the program of overdriving with the first overdrive regular OD1, is same as 302 activations of many pictures reversal of poles module and the picture of video picture is had the situation of the reversal of poles done.
Each function square of the time-sequence control module that Fig. 3 discloses can together be implemented in the chip, makes a sequential control chip.Perhaps, in other embodiments, storage unit 308 designs are outside timing controller, to consider the chip manufacturing cost.
As for disclosed overdriving method of LCD, Fig. 5 is with a flowchart illustrations a kind of embodiment wherein.Flow process starts from square S502, receives a video signal.Square S504 is responsible for judging whether to adopt the reversal of poles of picture more than and plays.Refrence square S506, under the situation that does not adopt this many pictures reversal of poles to play, institute's revealing method is to realize the program of overdriving with one first rule of overdriving.Refrence square S508, under the situation that adopts this many pictures reversal of poles to play, described method is judged also that the picture with video picture has or not and is done reversal of poles.Refrence square S510, under the situation that adopts this many pictures reversal of poles to play, if with the picture of video picture without doing reversal of poles, then adopt and be different from (for example, being weaker than) this first one second of rule (corresponding diagram 4OD1) rule (corresponding diagram 4OD2) of overdriving of overdriving and realize this program of overdriving.Otherwise, if square S508 judges the picture of video picture is done reversal of poles, then enter square S506, adopt this first rule of overdriving to realize this program of overdriving.
In one embodiment, the display packing of overdriving that discloses is that the polarity inversion signal (usually with the POL label) exported according to a sequential control module in the liquid crystal display of controlling and a vertical start signal (usually with the STV label) are judged that picture with video picture has or not and done reversal of poles.
In one embodiment, the display packing of overdriving that discloses is also supplied a storage unit (corresponding diagram 3308) and is stored one first form (corresponding diagram 3TAB1) and one second form (corresponding diagram 3TAB2) of tabling look-up of overdriving of tabling look-up of overdriving, in order to realize respectively this first rule and this second rule of overdriving of overdriving.Under the situation that does not adopt the reversal of poles of many pictures to play, the method can realize this program of overdriving with reference to the overdrive form of tabling look-up of stored this of this storage unit first.Under the situation that adopts this many pictures reversal of poles to play, if with the picture of video picture without doing reversal of poles, the method can realize this program of overdriving with reference to the overdrive form of tabling look-up of stored this of this storage unit second.Under the situation that adopts this many pictures reversal of poles to play, if the picture of video picture is done reversal of poles, the method can realize this program of overdriving with reference to the overdrive form of tabling look-up of stored this of this storage unit first.
In another embodiment, the storage unit that the display packing of overdriving that discloses is supplied is to store one first form (corresponding diagram 3TAB1) and the weight parameter (corresponding diagram 3TAB3) of tabling look-up of overdriving.This first overdrive form of tabling look-up be used for to be realized this first rule of overdriving.This weight parameter is used for weight calculation, and this first is overdrived and tables look-up the content of form to realize this second rule of overdriving.Under the situation that does not adopt this many pictures reversal of poles to play, the method can realize this program of overdriving with reference to the overdrive form of tabling look-up of stored this of this storage unit first.Under the situation that adopts this many pictures reversal of poles to play, if with the picture of video picture without doing reversal of poles, the method can with reference to stored this of this storage unit first overdrive table look-up form and this weight parameter both, to realize this program of overdriving.Under the situation that adopts this many pictures reversal of poles to play, if the picture of video picture is done reversal of poles, the method can realize this program of overdriving with reference to the overdrive form of tabling look-up of stored this of this storage unit first.
In addition, what need special instruction is that disclosed above various " Driving technique " is not limited in the application of " the three-dimensional video signal of shutter ".Every using " reversal of poles of many pictures "-every N picture done a reversal of poles, N be more than 2 numerical value-play-back technology all disclosed above " overdrive technique " can be applied to wherein.
Although the present invention discloses as above with preferred embodiment; so it is not to limit the present invention, those skilled in the art, under the premise without departing from the spirit and scope of the present invention; can do a little change and retouching, so protection scope of the present invention is to be as the criterion with claim of the present invention.
Claims (15)
1. liquid crystal display comprises:
One liquid crystal panel;
One scan line drive and a datawire driver are supplied a plurality of scanning-line signals and a plurality of data line signal to this liquid crystal panel; And
Control a sequential control module of this scan line driver and this datawire driver, receive a video signal, and, when the reversal of poles of picture more than is play, if the picture of video picture is done reversal of poles, then adopt one first rule of overdriving to realize the program of overdriving, if with the picture of video picture without doing reversal of poles, then adopt and be different from this first one second of rule rule of overdriving of overdriving and realize this program of overdriving, wherein, it is that every N picture done a reversal of poles that above-mentioned many pictures reversal of poles is play, and N is the numerical value more than 2.
2. liquid crystal display as claimed in claim 1, wherein, this first rule of overdriving is better than this second rule of overdriving, and to same gray scale variation demand, this first regular corresponding over-drive operation of overdriving can be better than this second rule of overdriving.
3. liquid crystal display as claimed in claim 1, wherein above-mentioned many pictures reversal of poles are play and are used for realizing the three-dimensional video signal of shutter.
4. liquid crystal display as claimed in claim 1, wherein this time-sequence control module also comprises:
The reversal of poles of picture more than a module realizes this many pictures reversal of poles broadcast for this time-sequence control module.
5. liquid crystal display as claimed in claim 4, wherein this time-sequence control module also comprises:
One polarity controller is exported a polarity inversion signal according to the running of this many pictures reversal of poles module, is used for this datawire driver of control; And
One vertical start signal generator, output one vertical start signal is used for this scan line driver of control.
6. liquid crystal display as claimed in claim 5, wherein, this time-sequence control module is to judge according to this polarity inversion signal and this vertical start signal that picture with video picture has or not to do reversal of poles.
7. liquid crystal display as claimed in claim 4, wherein this time-sequence control module also comprises:
One storage unit store to be used for realizes that this first one first of rule of overdriving overdrives and table look-up form and be used for realizing this second one second of rule form of tabling look-up of overdriving of overdriving;
One rule of overdriving is chosen logic, export an index for selection, in this many pictures reversal of poles module activation and with the picture of video picture this first form of tabling look-up of overdriving that points to that this storage unit stores when doing reversal of poles is arranged, and this second form of tabling look-up of overdriving that points in this many pictures reversal of poles module activation and with the picture of video picture that this storage unit stores when doing reversal of poles;
One logic of overdriving realizes this program of overdriving according to this index for selection content pointed; And
One impact damper, this video signal that this time-sequence control module of buffer storage receives applies this program of overdriving to transfer to this logic of overdriving.
8. liquid crystal display as claimed in claim 7, wherein this rule of overdriving this first form of tabling look-up of overdriving of choosing that logic points to this index for selection also that this storage unit stores when this many pictures reversal of poles module disabled.
9. liquid crystal display as claimed in claim 4, wherein this time-sequence control module also comprises:
One storage unit, store one first form and the weight parameter of tabling look-up of overdriving, wherein, this first overdrive form of tabling look-up be used for to be realized this first rule of overdriving, and this weight parameter is used for weight calculation, and this first is overdrived and table look-up the content of form to realize this second rule of overdriving;
One rule of overdriving is chosen logic, export an index for selection, in this many pictures reversal of poles module activation and with the picture of video picture this first form of tabling look-up of overdriving that points to that this storage unit stores when doing reversal of poles is arranged, and point in this many pictures reversal of poles module activation and with the picture of video picture that this storage unit stores when doing reversal of poles this first overdrive table look-up form and this weight parameter both;
One logic of overdriving realizes this program of overdriving according to this index for selection content pointed; And
One impact damper, this video signal that this time-sequence control module of buffer storage receives applies this program of overdriving to transfer to this logic of overdriving.
10. liquid crystal display as claimed in claim 9, wherein this rule of overdriving this first form of tabling look-up of overdriving of choosing that logic points to when this many pictures reversal of poles module disabled also that this storage unit stores.
A display packing 11. liquid crystal display is overdrived comprises:
Receive a video signal;
Judging whether to adopt the reversal of poles of picture more than plays;
Under the situation that does not adopt this many pictures reversal of poles to play, realize the program of overdriving with one first rule of overdriving, it is a reversal of poles of every N picture do that above-mentioned many pictures reversal of poles is play, N is the numerical value more than 2;
Under the situation that adopts this many pictures reversal of poles to play, judge also that picture with video picture has or not to do reversal of poles;
Under the situation that adopts this many pictures reversal of poles to play, if with the picture of video picture without doing reversal of poles, then realize this program of overdriving to be different from this first one second of rule rule of overdriving of overdriving; And
Under the situation that adopts this many pictures reversal of poles to play, if the picture of video picture is done reversal of poles, then realize this program of overdriving with this first rule of overdriving.
12. method as claimed in claim 11, wherein, this first rule of overdriving is better than this second rule of overdriving, and to same gray scale variation demand, this first regular corresponding over-drive operation of overdriving can be better than this second rule of overdriving.
13. method as claimed in claim 10 also comprises:
A polarity inversion signal of exporting according to a sequential control module in the liquid crystal display of controlling and a vertical start signal judge that the picture with video picture has or not and do reversal of poles,
Wherein, this polarity inversion signal is used for a datawire driver of this liquid crystal display of control, and this vertical start signal is used for the one scan line drive of this liquid crystal display of control.
14. method as claimed in claim 10 also comprises:
Supply a storage unit and store one first form and one second form of tabling look-up of overdriving of tabling look-up of overdriving, wherein, this first overdrive form of tabling look-up is used for realizing this first rule of overdriving, and this second overdrive form of tabling look-up is used for realizing this second rule of overdriving;
Under the situation that does not adopt this many pictures reversal of poles to play, realize this program of overdriving with reference to the overdrive form of tabling look-up of stored this of this storage unit first;
Under the situation that adopts this many pictures reversal of poles to play, if with the picture of video picture without doing reversal of poles, then realize this program of overdriving with reference to the overdrive form of tabling look-up of stored this of this storage unit second; And
Under the situation that adopts this many pictures reversal of poles to play, if the picture of video picture is done reversal of poles, then realize this program of overdriving with reference to the overdrive form of tabling look-up of stored this of this storage unit first.
15. method as claimed in claim 10 also comprises:
Supply a storage unit and store one first form and the weight parameter of tabling look-up of overdriving, wherein, this first overdrive form of tabling look-up be used for to be realized this first rule of overdriving, and this weight parameter is used for weight calculation, and this first is overdrived and table look-up the content of form to realize this second rule of overdriving;
Under the situation that does not adopt this many pictures reversal of poles to play, realize this program of overdriving with reference to the overdrive form of tabling look-up of stored this of this storage unit first;
Under the situation that adopts this many pictures reversal of poles to play, if with the picture of video picture without doing reversal of poles, with reference to stored this of this storage unit first overdrive table look-up form and this weight parameter both, to realize this program of overdriving; And
Under the situation that adopts this many pictures reversal of poles to play, if the picture of video picture is done reversal of poles, then realize this program of overdriving with reference to the overdrive form of tabling look-up of stored this of this storage unit first.
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| CN201110180820XA CN102855852A (en) | 2011-06-30 | 2011-06-30 | Liquid crystal display and overdriving method |
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| CN201110180820XA CN102855852A (en) | 2011-06-30 | 2011-06-30 | Liquid crystal display and overdriving method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390113A (en) * | 2015-12-15 | 2016-03-09 | 深圳市华星光电技术有限公司 | Liquid crystal display device and data signal compensation method |
| WO2018120125A1 (en) * | 2016-12-28 | 2018-07-05 | 武汉华星光电技术有限公司 | Driving device and driving method for liquid crystal panel |
| CN108847194A (en) * | 2018-06-22 | 2018-11-20 | 惠科股份有限公司 | Display device and driving method |
| CN109147687A (en) * | 2018-08-06 | 2019-01-04 | 深圳市华星光电技术有限公司 | Display driving method and display device |
| WO2021000632A1 (en) * | 2019-07-02 | 2021-01-07 | 南京中电熊猫液晶显示科技有限公司 | Liquid crystal display panel and method for improving dynamic picture tailing of liquid crystal display panel |
| CN112233498A (en) * | 2020-10-14 | 2021-01-15 | 烟台鼎钰电子科技有限公司 | Tabular programmable display controller |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1705006A (en) * | 2004-06-01 | 2005-12-07 | 株式会社日立显示器 | Liquid crystal display device and driving method thereof |
| CN1804986A (en) * | 2005-01-14 | 2006-07-19 | 川崎微电子股份有限公司 | Overdrive circuit and liquid crystal display panel driving apparatus including the same |
| CN101286313A (en) * | 2007-04-11 | 2008-10-15 | 钰瀚科技股份有限公司 | Multi-picture frame polarity reversal overexcitation driving method of display |
| US20090184890A1 (en) * | 2005-12-06 | 2009-07-23 | Matt Cowan | Enhanced zscreen modulator techniques |
| CN101995695A (en) * | 2009-08-07 | 2011-03-30 | 索尼公司 | Liquid crystal shutter device and picture display system |
| CN102036087A (en) * | 2009-09-30 | 2011-04-27 | 索尼公司 | Image display device, image display viewing system and image display method |
-
2011
- 2011-06-30 CN CN201110180820XA patent/CN102855852A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1705006A (en) * | 2004-06-01 | 2005-12-07 | 株式会社日立显示器 | Liquid crystal display device and driving method thereof |
| CN1804986A (en) * | 2005-01-14 | 2006-07-19 | 川崎微电子股份有限公司 | Overdrive circuit and liquid crystal display panel driving apparatus including the same |
| US20090184890A1 (en) * | 2005-12-06 | 2009-07-23 | Matt Cowan | Enhanced zscreen modulator techniques |
| CN101286313A (en) * | 2007-04-11 | 2008-10-15 | 钰瀚科技股份有限公司 | Multi-picture frame polarity reversal overexcitation driving method of display |
| CN101995695A (en) * | 2009-08-07 | 2011-03-30 | 索尼公司 | Liquid crystal shutter device and picture display system |
| CN102036087A (en) * | 2009-09-30 | 2011-04-27 | 索尼公司 | Image display device, image display viewing system and image display method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390113A (en) * | 2015-12-15 | 2016-03-09 | 深圳市华星光电技术有限公司 | Liquid crystal display device and data signal compensation method |
| WO2018120125A1 (en) * | 2016-12-28 | 2018-07-05 | 武汉华星光电技术有限公司 | Driving device and driving method for liquid crystal panel |
| CN108847194A (en) * | 2018-06-22 | 2018-11-20 | 惠科股份有限公司 | Display device and driving method |
| WO2019242118A1 (en) * | 2018-06-22 | 2019-12-26 | 惠科股份有限公司 | Display device and driving method |
| CN109147687A (en) * | 2018-08-06 | 2019-01-04 | 深圳市华星光电技术有限公司 | Display driving method and display device |
| CN109147687B (en) * | 2018-08-06 | 2020-05-29 | 深圳市华星光电技术有限公司 | Display driving method and display device |
| WO2021000632A1 (en) * | 2019-07-02 | 2021-01-07 | 南京中电熊猫液晶显示科技有限公司 | Liquid crystal display panel and method for improving dynamic picture tailing of liquid crystal display panel |
| CN112233498A (en) * | 2020-10-14 | 2021-01-15 | 烟台鼎钰电子科技有限公司 | Tabular programmable display controller |
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