CN102466904A - Method for driving display - Google Patents
Method for driving display Download PDFInfo
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- CN102466904A CN102466904A CN2010105379463A CN201010537946A CN102466904A CN 102466904 A CN102466904 A CN 102466904A CN 2010105379463 A CN2010105379463 A CN 2010105379463A CN 201010537946 A CN201010537946 A CN 201010537946A CN 102466904 A CN102466904 A CN 102466904A
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Abstract
The invention provides a method for driving a display. The display comprises a display unit and a phase modulation unit, wherein the display unit comprises a plurality of pixel columns and generates an image signal having polarization direction; and the phase modulation unit comprises two electrodes which are oppositely arranged, and a liquid crystal layer which is sandwiched between the two electrodes. In the method, by changing the difference of potentials which are input to the two electrodes of the phase modulation unit, the rotating direction of the liquid crystal layer is controlled to change the polarization direction of the image signal after passing through the phase modulation unit which is generated by the display unit.
Description
Technical field
The present invention relates to a kind of display device, and relate in particular to a kind of driving method of stereoscopic image display.
Background technology
Along with the maturation of LCD Technology, can show that the image display of stereo-picture has become follow-on hot product.
For example Fig. 1 shows a kind of stereographic map of existing stereoscopic image display, and it comprises display unit 8 and phase modulation unit 9.The picture signal that this display unit 8 is produced will form mutually orthogonal left-eye image signal in polarization direction and eye image signal in different time after these phase modulation unit 9 modulation, the user only need use existing polaroid glasses can watch stereo-picture.
This display unit 8 comprises the last polaroid 81 that is oppositely arranged and reaches polaroid 82 down, and picture signal then had the polarization direction after should going up polaroid 81 ejaculations.This phase modulation unit 9 comprises transparent electrode layer 91, following transparent electrode layer 92 and is located in the liquid crystal layer of two transparency electrode interlayers; VA pattern (VA mode) liquid crystal for example; Wherein should go up transparent electrode layer 91 is the transparency electrode of full wafer; This time transparent electrode layer 92 then constitutes and correspond to respectively a plurality of pixel columns 83 (pixel row) configuration that this display unit 8 is comprised by a plurality of transparency electrodes that are parallel to each other, and is as shown in Figure 2.
With reference to Fig. 1～4, Fig. 3 shows the control signal that inputs to this display unit 8 and modulating unit 9 simultaneously; Fig. 4 display image signals is through this polarization direction of modulating unit 9 modulation back during different frame.(F for example during odd-numbered frame
1, F
3), sweep signal drives a plurality of pixel columns 83 of this display unit 8 in regular turn; Simultaneously, the sweep signal of this pixel column 83 of the corresponding driving of phase control signal drives a plurality of transparency electrodes of the following transparent electrode layer 92 of this modulating unit 9 in regular turn.At this moment, the phase control signal that is applied to this phase modulation unit 9 will cause picture signal process modulating unit 9 backs during odd-numbered frame, 180 degree phase deviations occur (like the frame F of Fig. 4
1).(F for example during even frame
2, F
4), this sweep signal drives a plurality of pixel columns 83 of this display unit 8 in regular turn; Simultaneously, the sweep signal of this pixel column 83 of the corresponding driving of no-voltage is input to a plurality of transparency electrodes of the following transparent electrode layer 92 of this modulating unit 9 in regular turn.At this moment, be zero owing to be applied to the driving voltage of this phase modulation unit 9, picture signal during even frame, can not produce phase deviation (like the frame F of Fig. 4 through modulating unit 9 backs
2).
By this, during the odd-numbered frame with even frame during the polarization direction of picture signal can form quadrature.The picture signal of different polarization direction is isolated the picture signal of left eye and right eye through the polaroid glasses of left and right phase differential quadrature, gets into left eye and right eye more respectively, can present stereo-picture in brain.Yet; As shown in Figure 2; Because each row transparency electrode of this time transparent electrode layer 92 needs accurately being positioned at each row pixel 83 of this display unit 8; Use the phase mutual interference between the picture signal of avoiding the different polarization direction, the degree of difficulty when increasing volume production yet this contraposition program can increase the making complexity.
In view of this, be necessary to propose a kind of stereoscopic image display and driving method thereof, it can reduce the interference between the picture signal of different polarization direction and reduce and make complexity.
Summary of the invention
A purpose of the present invention is the display drive method that proposes a kind of stereoscopic image display of low making complexity.
Another purpose of the present invention is to propose a kind of display drive method that disturbs between the picture signal of different polarization direction that reduces.
The present invention proposes a kind of display drive method; This display comprises display unit and phase modulation unit; This display unit comprises a plurality of pixel columns and generation has the picture signal of polarization direction; This phase modulation unit comprises two electrodes that are oppositely arranged and is located in two interelectrode liquid crystal layers, and this driving method inputs to this two electrode through change potential difference (PD) changes picture signal that this display unit is produced through this polarization direction after this phase modulation unit to control turning to of this liquid crystal layer.
Among a kind of embodiment, display drive method comprises the following step: all pixel columns that drive this display unit with first frequency in regular turn are with continuous generation picture frame, and wherein this picture frame is normogram picture frame and black plug picture in regular turn; And import this two electrode of noble potential and electronegative potential to this phase modulation unit in turn with second frequency, wherein be synchronized with during each noble potential and during the electronegative potential continuous normogram picture frame add the black plug picture during.
Among another embodiment; Display drive method comprises the following step: all pixel columns that drive this display unit with first frequency in regular turn are with continuous generation picture frame; Wherein each picture frame also comprises the liquid crystal reaction time, and this picture frame is normogram picture frame and black plug picture in regular turn; And import two electrodes of noble potential and electronegative potential to this phase modulation unit in turn with second frequency, wherein be synchronized with during each noble potential and during the electronegative potential between the starting point in liquid crystal reaction time of two continuous black plug pictures during.
The present invention also proposes a kind of display drive method; This display comprises display unit, phase modulation unit and backlight; This display unit comprises many pixel columns and generation has the picture signal of polarization direction; This phase modulation unit comprises two electrodes that are oppositely arranged and is located in two interelectrode liquid crystal layers; This driving method comprises the following step: all pixel columns that drive this display unit with first frequency in regular turn are with continuous generation picture frame, and wherein each picture frame also comprises liquid crystal reaction time and backlight lightening time; Import two electrodes of noble potential and electronegative potential to this phase modulation unit in turn with this first frequency, wherein be synchronized with during the picture frame during each noble potential and during the electronegative potential; And provide the backlight control signal activation this backlight with this first frequency, wherein this backlight control signal is synchronized with this backlight lightening time.
In the image display of the present invention, two electrodes of this phase modulation unit are the full wafer transparency electrode.
In the display drive method of the present invention, the polarity of voltage of two adjacent noble potentials that inputs to this phase modulation unit is opposite, so that the action of the liquid crystal of this phase modulation unit forms reversal of poles.
Description of drawings
Fig. 1 is a kind of stereographic map of existing stereoscopic image display;
Fig. 2 is the synoptic diagram of the stereoscopic image display of Fig. 1;
Fig. 3 is the control signal sequential chart of the stereoscopic image display of Fig. 1;
Fig. 4 shows the synoptic diagram of existing stereoscopic image display according to the polarization direction of the picture signal that control signal produced of Fig. 3;
Fig. 5 is the stereographic map of the stereoscopic image display of the embodiment of the invention;
Fig. 6 is the synoptic diagram of the stereoscopic image display of Fig. 5;
Fig. 7 is the action synoptic diagram of the display drive method of first embodiment of the invention;
Fig. 8 is the action synoptic diagram of the display drive method of second embodiment of the invention;
Fig. 9 is the action synoptic diagram of the display drive method of third embodiment of the invention.
Embodiment
In order to allow above and other objects of the present invention, feature and the advantage can be more obvious, hereinafter will be in conjunction with the accompanying drawings, elaborate as follows.In explanation of the present invention, identical member is with identical symbolic representation, in this close chat earlier bright.
In addition, in each icon of the present invention, only shown partial component and having omitted and member that the present invention explanation is not directly related.
With reference to shown in Figure 5, it shows the stereographic map of the stereoscopic image display of the embodiment of the invention.Image display 10 comprises backlight 11, display unit 12, time schedule controller 120, phase modulation unit 13 and lock unit 14.This backlight 11 is required backlight when these display unit 12 display images to be provided, and it can be the employed various backlights of available liquid crystal display, for example cathode fluorescent tube (CCFL) backlight, LED-backlit source or the like, but be not limited to this.This display unit 12 can be the available liquid crystal panel, and it comprises polaroid 121, following polaroid 122 and is located in the liquid crystal layer (not illustrating) between two polaroids.This display unit 12 produces through polaroid on this 121 has the picture signal of preset polarization direction.In other words, this backlight 11 and this display unit 12 can constitute the available liquid crystal display.
This phase modulation unit 13 comprises top electrode 131, bottom electrode 132 and is located in two interelectrode liquid crystal layers (not illustrating), and it for example can be twisted nematic liquid crystals (TN), ocb mode liquid crystal or VA mode liquid crystal etc.This top electrode 131 and this bottom electrode 132 are transparency electrode, for example by indium tin oxide (indium tin oxide, ITO), indium-zinc oxide (indium zinc oxide; IZO), indium oxide (indium oxide; IO), tin-oxide (tin oxide, TO), zinc oxide (zinc oxide, ZO), aluminium zinc oxide (aluminum zinc oxide; AZO) etc. the transparency electrode that constitutes, but be not limited to this.The present invention should preset polarization direction through the picture signal that this phase modulation unit 13 these display units 12 of modulation are set are produced; So that user's eyes can pass through polaroid glasses; Receive the picture signal of different polarization direction respectively in the different time interval, to watch stereo-picture.
Among the present invention; This top electrode 131 (near user's side) is the full wafer transparency electrode; This bottom electrode 132 (near the side of this display unit 12) also is the full wafer transparency electrode; Wherein the scope of this bottom electrode 132 must completely be covered at least all a plurality of pixel columns 125 that this display unit 12 comprised on, as shown in Figure 6, the picture signal that is produced with this display unit 12 of effective modulation.Fig. 6 is the synoptic diagram of the stereoscopic image display 10 of Fig. 5, and wherein this top electrode 131 and bottom electrode 132 are the full wafer transparency electrode.Among the present invention, because this top electrode 131 and this bottom electrode 132 are whole electrode, therefore can effectively avoid when assembling, a plurality of pixel columns of the electrode of phase modulation unit 13 and display unit 12 are the problem of contraposition accurately.
Refer again to shown in Fig. 5 and 6, the image that this lock unit 14 sees through these time schedule controller 120 these display units 12 of control shows, so that the running of its and this phase modulation unit 13 is synchronous, its control mode will be in then describing with embodiment; Wherein, The mode that these time schedule controller 120 control display units 12 carry out the image demonstration is a prior art; For example control gate driver 123 is in each row pixel 125 of the image duration of output frequency signal activation in regular turn (enable), and Controlling Source driver 124 is desired gray-scale displayed voltage to each capable pixel in output image duration institute.In addition, this time schedule controller 120 is also capable of being combined in this display unit 12, is not limited to Fig. 5 announcement person.
With reference to shown in Fig. 5～7, Fig. 7 is the action synoptic diagram of the display drive method of first embodiment of the invention simultaneously.These time schedule controller 120 these gate drivers 123 of control are for example with the frequency of 240Hz, and each pixel column 125 of this display unit 12 of output frequency signal activation in regular turn is with continuous generation picture frame, for example F
1～F
6This time schedule controller 120 is controlled these source electrode drivers 124 in each picture frame images displayed data that output is desired to each row pixel and whenever at a distance from a frame output black data (promptly zero gradation data; L0) to all pixels to form black plug picture (black frame insertion), so can avoid the phase mutual interference between the picture signal of different polarization direction.By this, this display unit is then taken turns stream normal picture frame (F with the frequency of 240Hz
1, F
3, F
5...) and black plug picture (F
2, F
4, F
6...).
In the time of these display unit 12 runnings; These lock unit 14 control phase control signals input to this phase modulation unit 13; For example import time varying signal to this top electrode 131 and this bottom electrode 132 one of them and the voltage of keeping another electrode and fix, the potential difference (PD) that becomes when between two electrodes, forming with the 120Hz frequency.This phase control signal comprises V during the noble potential
HAnd V during the electronegative potential
L, high potential difference and low potential difference are input to two electrodes of this phase modulation unit 13 in turn, wherein V during this noble potential
HThe current potential difference can be set at make two interelectrode liquid crystal layers in required time, rotate to positioning instant can, do not have specific limited; V during this electronegative potential
LThe current potential difference for example be roughly zero, but be not limited to this.In addition, input to V during the two adjacent noble potentials of this phase modulation unit 13
HPolarity of voltage be opposite so that two interelectrode liquid crystal layer reversal of poles.V during the noble potential of these lock unit 14 these phase control signals of control
HBe synchronized with two continuous images frames and (comprise that the normogram picture frame adds black plug picture, for example F
1+ F
2, F
5+ F
6...); And control V during the electronegative potential of this phase control signal
LBeing synchronized with in addition, two continuous images frames (comprise that the normogram picture frame adds black plug picture, for example F
3+ F
4...).
Among a kind of embodiment, 132 folded persons of establishing of this top electrode 131 and this bottom electrode can be twisted nematic liquid crystals or ocb mode liquid crystal, V during noble potential
HThe picture signal that can make process any phase differential does not appear and during electronegative potential V
LCan make the picture signal of process the phase differential of π occur.By this, according to the drive signal of Fig. 7, user's right eye see through polaroid glasses can be during noble potential V
HReceive the picture signal of the identical polarization direction of picture signal that is produced with this display unit 12, left eye through polaroid glasses can be during electronegative potential V
LReceive the picture signal polarization direction that produced with this display unit 12 picture signal of quadrature mutually, because the image that right and left eyes is seen difference, and in brain, produce stereo-picture.Among another embodiment, 132 folded persons of establishing of this top electrode 131 and this bottom electrode can be VA mode liquid crystal layer, V during noble potential
HCan make the picture signal of process the phase differential of π, V during electronegative potential occur
LCan make the picture signal of process any phase differential not occur.No matter which kind of liquid crystal layer two interelectrode liquid crystal layers are, all can let user's eyes see through the picture signal that polaroid glasses receive the different polarization direction respectively, because the image that right and left eyes is seen is different, and in brain, produce stereo-picture.Scrutable is that the polarization direction of above-mentioned right eye and picture signal that left eye receives is merely exemplary, is not in order to limit the present invention.In addition, the generation frequency of picture signal and the frequency of this phase control signal are merely exemplary in the present embodiment, are not in order to limit the present invention.
With reference to Fig. 5, shown in 6 and 8, Fig. 8 is the action synoptic diagram of the display drive method of second embodiment of the invention simultaneously.These time schedule controller 120 these gate drivers 123 of control are for example with the frequency of 240Hz, and each pixel column 125 of this display unit 12 of output frequency signal activation in regular turn is with continuous generation picture frame, for example F
1'～F
6'.Yet; Because the liquid crystal layer of this display unit 12 needs reaction time RT (response time) when being diverted to the location; In each frame of present embodiment, after last row pixel of this display unit 12 is enabled, extra again one liquid crystal reaction time of reservation RT; So that all liquid crystal molecules all have been diverted to the location before importing next frame, that is has no a row pixel column by the frequency signal activation among this liquid crystal reaction time RT.Among a kind of embodiment, can be listed as to realize this liquid crystal reaction time RT through making this gate drivers 123 drive non-existent a plurality of virtual pixels.In addition; These time schedule controller 120 these source electrode drivers 124 of control are in each picture frame images displayed data that output is desired to each the row pixel and frame output black data (the promptly zero gradation data of whenever being separated by; L0) to all pixels forming the black plug picture, and this black plug picture comprises liquid crystal reaction time RT equally.By this, this display unit is then taken turns stream normal picture frame (F with the frequency of 240Hz
1', F
3', F
5' ...) and black plug picture (F
2', F
4', F
6' ...), and all comprise liquid crystal reaction time RT each image duration.
In the time of these display unit 12 runnings; These lock unit 14 control phase control signals input to this phase modulation unit 13; For example import time varying signal to this top electrode 131 and this bottom electrode 132 one of them and the voltage of keeping another electrode and fix, the potential difference (PD) that becomes when between two electrodes, forming with the 120Hz frequency.This phase control signal comprises V during the noble potential
HAnd V during the electronegative potential
L, high potential difference and low potential difference are input to two electrodes of this phase modulation unit 13 in turn, wherein V during this noble potential
HAnd V during this electronegative potential
LThe current potential difference can be of first embodiment.In the present embodiment, V during the noble potential of these lock unit 14 these phase control signals of control
HAnd V during the electronegative potential
LBe synchronized with between the starting point T of liquid crystal reaction time RT of two continuous black plug pictures during.In addition, the liquid crystal reaction time RT of this display unit 12 is roughly synchronous with the liquid crystal reaction time of this phase modulation unit 12 in this black plug picture; By this, eye image signal and left-eye image signal all begin to produce after the liquid crystal of phase control unit 13 turns to completion, produce the situation of picture signal when so can avoid liquid crystal to turn to.Scrutable is that the numerical value of liquid crystal reaction time RT can for example be at least 3 milliseconds (ms) according to the characteristic decision of the actual liquid crystal layer that uses.
In the present embodiment,, all can let user's eyes see through polaroid glasses receive the different polarization direction respectively in the different time interval picture signal no matter which kind of liquid crystal layer two interelectrode liquid crystal layers are.In addition, the generation frequency of picture signal and the frequency of this phase control signal are merely exemplary in the present embodiment, are not in order to limit the present invention.
With reference to Fig. 5, shown in 6 and 9, Fig. 9 is the action synoptic diagram of the display drive method of third embodiment of the invention simultaneously.These time schedule controller 120 these gate drivers 123 of control, for example with the frequency of 120Hz, each pixel column 125 of this display unit 12 of output frequency signal activation in regular turn is with continuous generation picture frame, for example F
1"～F
4".In the present embodiment, in each image duration except the liquid crystal layer of reserving this display unit 12 required liquid crystal reaction time RT when being diverted to the location, also comprise the backlight lightening time T in addition
BLIn other words, in present embodiment, each frame time comprises activation time, the liquid crystal reaction time RT and the backlight lightening time T of each row pixel of activation
BL, and this liquid crystal reaction time RT and this backlight lightening time T
BLIn have no a row pixel column by the frequency signal activation.It can see through equally the non-existent a plurality of virtual pixels of these gate drivers 123 drivings are listed as to realize this liquid crystal reaction time RT and backlight lightening time T
BLWherein this liquid crystal reaction time RT is arranged in last pixel column of each picture frame by a period of time after driving, this backlight lightening time T
BLBe arranged in each picture frame final stage time, as shown in Figure 9.
In the time of these display unit 12 runnings; These lock unit 14 control phase control signals input to this phase modulation unit 13; For example import time varying signal to this top electrode 131 and this bottom electrode 132 one of them and the voltage of keeping another electrode and fix, the potential difference (PD) that becomes when between two electrodes, forming with the 120Hz frequency.This phase control signal comprises V during the noble potential
HAnd V during the electronegative potential
L, high potential difference and low potential difference are input to two electrodes of this phase modulation unit 13 in turn, wherein V during this noble potential
HAnd V during the electronegative potential
LThe current potential difference of first embodiment.In the present embodiment, V during the noble potential of these lock unit 14 these phase control signals of control
HAnd V during the electronegative potential
LEach image duration that is synchronized with this display unit 12.
In the time of 13 runnings of this display unit 12 and this phase modulation unit, this lock unit 14 is controlled backlight control signal in addition and is inputed to this backlight 11, and make this backlight 11 light the backlight lightening time T of time synchronized in this display unit 12
BLBecause of (being T before the backlight lightening
BL), all row pixel columns are all by the frequency signal activation and there is the enough reaction time to be diverted to the location, produce the unusual situation of picture signal too late the time so can avoid eyes to see because of the liquid crystal reaction.Scrutable is that the numerical value of liquid crystal reaction time RT can for example be at least 3 milliseconds (ms) according to the characteristic decision of the actual liquid crystal layer that uses.This backlight lightening time T
BLFor example can be by lock unit 14 controls.Because the frequency that display unit 12 writes in the present embodiment is 120Hz, therefore, the activation temporal summation of each row pixel of activation, liquid crystal reaction time RT and backlight lightening time T
BLSummation is 1/120ms (8.33ms).If the activation temporal summation of each row pixel of activation or liquid crystal reaction time RT reduce, the backlight lightening time T
BLIncrease, therefore, display unit 12 can have higher brightness thereupon.
In the present embodiment,, all can let user's eyes see through polaroid glasses receive the different polarization direction respectively in the different time interval picture signal no matter which kind of liquid crystal layer two interelectrode liquid crystal layers are.Compared to first and second embodiment, time schedule controller 120 can reduce the control load (loading) of this time schedule controller 120 with all pixel columns of lower (for example 120Hz) frequency activation in the present embodiment.In addition, the generation frequency of picture signal and the frequency of this phase control signal are merely exemplary in the present embodiment, are not in order to limit the present invention.
Scrutable is that though show the eye image signal in Fig. 7～9 earlier, it is merely exemplary, also can show the left-eye image signal earlier among other embodiment.
As previously mentioned, owing to having, existing stereoscopic image display need accurate contraposition to increase the problem of making complexity.The present invention also proposes a kind of driving method of image display, and its image display that is suitable for does not have the problem of accurate contraposition when making, and driving method of the present invention also has the effect of disturbing between the picture signal of imitating elimination different polarization direction.
Though the present invention discloses with previous embodiment, so it is not that any those skilled in the art are not breaking away from the spirit and scope of the present invention, when doing various changes and modification in order to qualification the present invention.Therefore protection scope of the present invention is as the criterion when looking the accompanying Claim person of defining.
Claims (14)
1. display drive method; Said display comprises display unit and phase modulation unit; Said display unit comprises a plurality of pixel columns and generation has the picture signal of polarization direction; Said phase modulation unit comprises two electrodes that are oppositely arranged and is located in two interelectrode liquid crystal layers, and said driving method comprises the following step:
All pixel columns that drive said display unit with first frequency in regular turn are with continuous generation picture frame, and wherein said picture frame is normogram picture frame and black plug picture in regular turn; And
Import said two electrodes of noble potential and electronegative potential to said phase modulation unit in turn with second frequency, wherein be synchronized with during each noble potential and during the electronegative potential continuous normogram picture frame add the black plug picture during.
2. driving method according to claim 1, two electrodes of wherein said phase modulation unit are the full wafer transparency electrode.
3. driving method according to claim 1, wherein said first frequency are 240 hertz, and said second frequency is 120 hertz.
4. driving method according to claim 1, wherein pass through said phase modulation unit after, the picture signal of corresponding said noble potential is mutually orthogonal with the polarization direction of the picture signal of corresponding said electronegative potential, and the polarity of voltage of adjacent noble potential is opposite in twos.
5. display drive method; Said display comprises display unit and phase modulation unit; Said display unit comprises a plurality of pixel columns and generation has the picture signal of polarization direction; Said phase modulation unit comprises two electrodes that are oppositely arranged and is located in two interelectrode liquid crystal layers, and said driving method comprises the following step:
All pixel columns that drive said display unit with first frequency in regular turn are with continuous generation picture frame, and wherein each picture frame also comprises the liquid crystal reaction time, and said picture frame is normogram picture frame and black plug picture in regular turn; And
Import two electrodes of noble potential and electronegative potential to said phase modulation unit in turn with second frequency, wherein be synchronized with during each noble potential and during the electronegative potential between the starting point in liquid crystal reaction time of two continuous black plug pictures during.
6. driving method according to claim 5, wherein said first frequency are 240 hertz, and said second frequency is 120 hertz.
7. driving method according to claim 5, the wherein said liquid crystal reaction time is arranged in last pixel column of each picture frame by a period of time after driving.
8. driving method according to claim 5, two electrodes of wherein said phase modulation unit are the full wafer transparency electrode.
9. driving method according to claim 5, wherein pass through said phase modulation unit after, the picture signal of corresponding said noble potential is mutually orthogonal with the polarization direction of the picture signal of corresponding said electronegative potential, and the polarity of voltage of adjacent noble potential is opposite in twos.
10. display drive method; Said display comprises display unit, phase modulation unit and backlight; Said display unit comprises a plurality of pixel columns and generation has the picture signal of polarization direction; Said phase modulation unit comprises two electrodes that are oppositely arranged and is located in two interelectrode liquid crystal layers, and said driving method comprises:
All pixel columns that drive said display unit with first frequency in regular turn are with continuous generation picture frame, and wherein each picture frame also comprises liquid crystal reaction time and backlight lightening time;
Import two electrodes of noble potential and electronegative potential to said phase modulation unit in turn with said first frequency, wherein be synchronized with during the picture frame during each noble potential and during the electronegative potential; And
Provide the backlight control signal activation said backlight with said first frequency, wherein said backlight control signal is synchronized with the said backlight lightening time.
11. driving method according to claim 10, wherein said first frequency are 120 hertz.
12. driving method according to claim 10, the wherein said backlight lightening time is arranged in each picture frame final stage time, the said liquid crystal reaction time in each picture frame last pixel column by driving time and said backlight lightening between the time.
13. driving method according to claim 10, two electrodes of wherein said phase modulation unit are the full wafer transparency electrode.
14. driving method according to claim 10; After wherein passing through said phase modulation unit; The picture signal of corresponding said noble potential is mutually orthogonal with the polarization direction of the picture signal of corresponding said electronegative potential, and the polarity of voltage of adjacent noble potential is opposite in twos.
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|---|---|---|---|
| CN2010105379463A CN102466904A (en) | 2010-11-04 | 2010-11-04 | Method for driving display |
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| WO2020155103A1 (en) * | 2019-02-01 | 2020-08-06 | 深圳市柔宇科技有限公司 | Liquid crystal film |
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| CN101582247A (en) * | 2008-05-16 | 2009-11-18 | 北京京东方光电科技有限公司 | Liquid crystal display and drive method thereof |
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Application publication date: 20120523 |