CN103048817B - Drive method for blue phase liquid crystal display device - Google Patents
Drive method for blue phase liquid crystal display device Download PDFInfo
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- CN103048817B CN103048817B CN201110305365.1A CN201110305365A CN103048817B CN 103048817 B CN103048817 B CN 103048817B CN 201110305365 A CN201110305365 A CN 201110305365A CN 103048817 B CN103048817 B CN 103048817B
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Abstract
A drive method for a blue phase liquid crystal display device matches with a blue phase liquid crystal display device. The liquid crystal display device comprises at least a data line, at least a scanning line and at least a pixel. The drive method for the blue phase liquid crystal display device comprises the following steps of transmitting first grave scale voltage to the pixel through the data line; transmitting first recovery voltage to the pixel through the data line; transmitting a first insertion black voltage to the pixel through the data line and the absolute value of the first recovery voltage is higher than that of the first grove scale voltage and the first insertion black voltage. The drive method for the blue phase liquid crystal display device has the advantages of solving the problems of dark state light leak of the blue phase liquid crystal display device.
Description
Technical field
The present invention relates to a kind of display-apparatus driving method, particularly relate to the driving method of a kind of blue phase (blue phase) liquid crystal indicator.
Background technology
Blue phase liquid crystal is a kind of three-dimensional photon crystal structure of self aggregation, and what this liquid crystal phase occurred is waiting between phase (isotropic phase) with cholesterol phase (cholesteric phase).In addition, blue phase liquid crystal has the space lattice characteristic of self assembly, but possesses the person's character of fluid, and its lattice parameter is easy to change, and can have different photoelectric characteristics, be excellent adjustable photonic crystal, therefore can be applicable to 3 d display device.Wherein, blue phase liquid crystal display device, compared to traditional lcd technology, has high speed reaction time and wide viewing angle, and without the need to advantages such as alignment films, is therefore subject to extensive attention and the research of industry in recent years.But, the blue phase liquid crystal that different crystal turns to electro-optical characteristic is under the electric field different, blue phase liquid crystal has hysteresis phenomenon (Hysteresis), thus causes blue phase liquid crystal display device to have the problems such as image retention (ImageRetention, IR).
At present in the correlative study of liquid crystal indicator, the hysteresis phenomenon of blue phase liquid crystal display device is still sizable problem in optical appearance.Although, traditional dark-state black insertion technology can improve the braking problems of blue phase liquid crystal, and then can improve display device to when penetrance, but for dark-state light leak (the dark-state light leakage) aspect of blue phase liquid crystal display device, traditional dark-state black insertion technology still cannot effectively improve, and causes the dark-state penetrance of blue phase liquid crystal display device unstable and has a strong impact on its contrast.
Therefore, how to provide a kind of driving method, can improve the dark-state light leak of blue phase liquid crystal display device, real is one of current important topic.
Summary of the invention
Because above-mentioned problem, object of the present invention is for providing a kind of driving method improving the dark-state light leak of blue phase liquid crystal display device.
For reaching above-mentioned purpose, according to a kind of blue phase liquid crystal display device driving method of the present invention, coordinate with a blue phase liquid crystal display device, blue phase liquid crystal display device has at least one data line, at least one sweep trace and at least one pixel, and driving method comprises the following steps: transmit one first gray scale voltage to this pixel by this data line; One first recovery voltage is transmitted to this pixel by this data line; And transmit one first black plug voltage (black frame insertion voltage) to this pixel by this data line, wherein the absolute value of the first recovery voltage is higher than the absolute value of the first gray scale voltage and the first black plug voltage.
In one embodiment, when then transmitting the first recovery voltage after transmitting the first gray scale voltage, the first gray scale voltage is contrary with the polarity of the first recovery voltage.
In one embodiment, in a frame time, sequentially transmit the first gray scale voltage, the first recovery voltage and the first black plug voltage.
In one embodiment, in a frame time, transmit the first gray scale voltage to this pixel and transmit the first recovery voltage to the working time ratio of this pixel between 1: 1 ~ 1: 0.025.
In one embodiment, in a frame time, transmit the first recovery voltage to this pixel and transmit the first black plug voltage to the working time ratio of this pixel between 1: 1 ~ 1: 0.025.
In one embodiment, driving method also comprises by this data line transmission one second gray scale voltage to this pixel.
In one embodiment, driving method also comprises and transmits one second gray scale voltage and one second recovery voltage to this pixel by this data line.
In one embodiment, driving method also comprises and transmits one second gray scale voltage and one second black plug voltage to this pixel by this data line.
In one embodiment, driving method also comprises by the transmission of this data line one second gray scale voltage, one second recovery voltage and one second black plug voltage to this pixel.
In one embodiment, the first gray scale voltage is contrary with the polarity of the second gray scale voltage.
In one embodiment, the first recovery voltage is contrary with the polarity of the second recovery voltage.
In one embodiment, the first black plug voltage is contrary with the polarity of the second black plug voltage.
In one embodiment, in two frame times, sequentially transmit the first gray scale voltage, the second gray scale voltage, the first recovery voltage, the second recovery voltage, the first black plug voltage and the second black plug voltage.
In one embodiment, in two frame times, sequentially transmit the first gray scale voltage, the second gray scale voltage, the first recovery voltage, the first black plug voltage and the second black plug voltage.
In one embodiment, in two follow-up frame times, the first gray scale voltage, the second gray scale voltage, the second recovery voltage, the first black plug voltage and the second black plug voltage is sequentially transmitted.
In one embodiment, in two frame times, sequentially transmit the first gray scale voltage, the second gray scale voltage, the first recovery voltage and the first black plug voltage.
In one embodiment, in two follow-up frame times, the first gray scale voltage, the second gray scale voltage, the second recovery voltage and the second black plug voltage is sequentially transmitted.
In one embodiment, the first recovery voltage or the second recovery voltage are between 15 volts to 60 volts.
In one embodiment, the absolute value of the first recovery voltage is between 1.2 times to 4 times of the absolute value of the first gray scale voltage and the first black plug voltage.
From the above, because of according to blue phase liquid crystal display device driving method of the present invention by data line transmit the first gray scale voltage to pixel, transmit the first recovery voltage by data line and transmit the first black plug voltage to pixel to pixel and by data line, wherein the absolute value of the first recovery voltage is higher than the absolute value of the first gray scale voltage and the first black plug voltage.By this, after transmission first gray scale voltage, then the first higher recovery voltage can be transmitted, blue phase liquid crystal is made to have higher restoring force, to return to the iso ball state of optics, not only can improve the dark-state light leak of blue phase liquid crystal display device, also can improve the stability of its dark-state penetrance.
Accompanying drawing explanation
Figure 1A is a kind of schematic diagram of blue phase liquid crystal display device;
Figure 1B is the side view of the blue-phase liquid crystal display panel of Figure 1A;
Fig. 2 is the flow chart of steps of blue phase liquid crystal display device driving method of the present invention;
Fig. 3 A is the time diagram that driving method of the present invention drives blue phase liquid crystal display device;
Fig. 3 B to Fig. 3 D is another time diagram that driving method of the present invention drives blue phase liquid crystal display device; And
Fig. 4 is the schematic diagram using driving method of the present invention to drive the dark-state penetrance of blue phase liquid crystal display device.
[main element symbol description]
1: blue phase liquid crystal display device
2: blue-phase liquid crystal display panel
21: first substrate
22: second substrate
221: pixel electrode
222: electrode layer
223: transparent substrates
224: insulation course
23: blue phase liquid crystal layer
241,242: Polarizer
3: data drive circuit
4: scan drive circuit
B1: the first black plug voltage
B2: the second black plug voltage
D
11~ D
1m: data line
G1: the first gray scale voltage
G2: the second gray scale voltage
P01 ~ P03: step
S
11~ S
1n: sweep trace
T: frame time
V1: the first recovery voltage
V2: the second recovery voltage
Embodiment
Hereinafter with reference to relevant drawings, a kind of blue phase liquid crystal display device driving method according to the preferred embodiment of the present invention is described, wherein identical element is illustrated with identical reference marks.
Please refer to shown in Figure 1A, Figure 1B and Fig. 2, wherein, Figure 1A is a kind of schematic diagram of blue phase liquid crystal display device 1, and Figure 1B is the side view of the blue-phase liquid crystal display panel 2 of Figure 1A, and Fig. 2 is the flow chart of steps of blue phase liquid crystal display device driving method of the present invention.
Blue phase liquid crystal display device driving method and blue phase liquid crystal display device 1 fit applications.As shown in Figure 1A, blue phase liquid crystal display device 1 has blue-phase liquid crystal display panel 2, data drive circuit 3, scan driving circuit 4, at least one data line, at least one sweep trace and at least one pixel.In the present embodiment, blue phase liquid crystal display device 1 is to have plural pixel (Fig. 1 does not show), plural sweep trace S
11~ S
1nand complex data line D
11~ D
1mfor example.Wherein, described data line D
11~ D
1mand described sweep trace S
11~ S
1ndescribed pel array is formed in being crisscross arranged.In addition, blue-phase liquid crystal display panel 2 is by described data line D
11~ D
1mbe electrically connected with data drive circuit 3, and described sweep trace S
11~ S
1nthen be electrically connected with scan drive circuit 4.
In addition, as shown in Figure 1B, in the present embodiment, blue-phase liquid crystal display panel 2 switches (fringe field switching with a fringe field, FFS) formula display panels is example, and certainly, the present invention also can be applicable to a plane and switches (in-plane switch, IPS) formula display panels, or the display panels of other horizontal drive formulas.At this, be not limited.
Blue-phase liquid crystal display panel 2 has first substrate 21, second substrate 22 and a blue phase liquid crystal layer 23 (blue phase liquid crystal molecule is not drawn).Wherein, first substrate 21 is a colored optical filtering substrates, and second substrate 22 is an active matrix substrate, such as, be thin film transistor base plate, and relative with first substrate 21 and establish.In addition, blue phase liquid crystal layer 23 is located between first substrate 21 and second substrate 22.Blue phase liquid crystal layer 23 comprises a liquid crystal material can with blue phase, a macromolecular material and revolving a property agent.Wherein, by after the monomer material of tool optical reactivity (monomer) irradiating ultraviolet light, monomer material polyreaction is made to become macromolecular material (polymer), improve with the structure of stable blue phase liquid crystal the temperature range that blue phase liquid crystal exists, and then expand blue phase liquid crystal exercisable temperature range.And macromolecular material such as can comprise acrylate (acrylate), methyl methacrylate (methacrylate) or epoxy resin (epoxy), or its combination.At this, be not limited its material.
Second substrate 22 has pixel electrode 221, electrode layer 222 and a transparent substrates 223, and pixel electrode 221 and electrode layer 222 are arranged on transparent substrates 223, and are positioned at the side of second substrate 22.Wherein, electrode layer 222 is a common electrode layer.In addition, second substrate 22 also can comprise an insulation course 224, and insulation course 224 is arranged between pixel electrode 221 and electrode layer 222, and insulation course 224 can separate pixel electrode 221 and electrode layer 222, avoids short circuit.By the conducting of thin film transistor (TFT), gray scale voltage can be sent to pixel electrode 221, make to form the electric field that is roughly parallel to transparent substrates 223 between pixel electrode 221 and electrode layer 222 (common electrode layer), by this, the liquid crystal molecule that can order about blue phase liquid crystal layer 23 rotates, and then can modulate light.
In addition, blue-phase liquid crystal display panel 2 also can comprise two Polarizers 241,242 respectively.Polarizer 241,242 is arranged at the outside of first substrate 21 and second substrate 22 respectively.As shown in Figure 1B, Polarizer 241 is arranged at the upside of first substrate 21, and Polarizer 242 is arranged at the downside of second substrate 22.Differed in fact the Polarizer 241,242 of 90 degree by two panels polarizing axis, can reach the function of being covered by backlight, the power that recycling controls electric field can produce deflection with the characteristic of modulating light to liquid crystal, reaches and allows display panel show image.
Shown in Figure 1A and Fig. 2, blue phase liquid crystal display device driving method of the present invention comprises the following steps: transmit one first gray scale voltage to pixel (P01) by data line; One first recovery voltage is transmitted to pixel (P02) by data line; And transmit one first black plug voltage to pixel by data line, wherein the absolute value of the first recovery voltage is higher than the absolute value (P03) of the first gray scale voltage and the first black plug voltage.
Below please refer to relevant indicators, to further illustrate driving method of the present invention.
Shown in Fig. 2 and Fig. 3 A, wherein, Fig. 3 A is the time diagram that driving method of the present invention drives blue phase liquid crystal display device 1.
In step P01, transmit the first gray scale voltage G1 to pixel by data line.At this, sequentially transmit Continuity signal by scan drive circuit 4, with sweep trace S described in turn in order
11~ S
1n, coordinate data drive circuit 3, by described data line D simultaneously
11~ D
1mfirst gray scale voltage G1 is sent to described pixel, makes blue phase liquid crystal display device 1 displayable image picture.At this, the polarity of the first gray scale voltage G1 is just.It is noted that the first gray scale voltage G1 represents in a frame time in Fig. 3 A, all gray scale voltages that data drive circuit 3 transmits.In other words, the first gray scale voltage G1 is all sweep trace S of scan drive circuit 4 turn in order
11~ S
1ntime, the data voltage that data drive circuit 3 transmits.
In step P02, transmit the first recovery voltage V1 to pixel by data line.At this, by while conducting described in sweep trace S
11~ S
1n, so that the first recovery voltage V1 is sent to all pixels simultaneously, and the polarity of the first recovery voltage is negative.Wherein, the first recovery voltage V1 can make the picture of blue phase liquid crystal display device 1 display white.
In step P03, transmit the first black plug voltage B1 to pixel by data line.At this, by while conducting described in sweep trace S
11~ S
1n, so that the first black plug voltage B1 is sent to all pixels simultaneously.Wherein, the first black plug voltage B1 is traditional black insertion technology, blue phase liquid crystal display device 1 can be made to show the picture of black, can improve the hysteresis phenomenon of blue phase liquid crystal, and its voltage can be in fact zero or other predetermined magnitudes of voltage.
The absolute value of the first recovery voltage V1 is higher than the absolute value of the first gray scale voltage G1 and the first black plug voltage B1, and the absolute value of the first recovery voltage V1 is preferably between 1.2 times to 4 times of the absolute value of the first gray scale voltage G1 and the first black plug voltage B1.In other words, the first recovery voltage V1 has higher voltage strength.Wherein, because the drive characteristic of multi-form blue phase liquid crystal display device 1 is different, therefore the first recovery voltage V1 can between 15 volts to 60 volts, and the first recovery voltage V1 that the characteristics design of the different blue phase liquid crystal display device 1 of user Ke Yi is different, and make the absolute value of the first recovery voltage V1 higher than the absolute value of the first gray scale voltage G1 and the first black plug voltage B1 preferably between 1.2 times to 4 times of the absolute value of the first gray scale voltage G1 and the first black plug voltage B1.Wherein, the first recovery voltage V1 can make the picture of blue phase liquid crystal display device 1 display white, and can eliminate or improve the dark-state light leak of the blue phase liquid crystal of blue phase liquid crystal display device 1.
The possible cause that first recovery voltage V1 could eliminate or improve the dark-state light leak of blue phase liquid crystal is, hysteresis phenomenon due to blue phase liquid crystal causes display frame to return to dark-state, so, when the crystalline network of blue phase liquid crystal is constant, by applying the oval ball that iso for script optics lattice ball elongation can be tool birefraction by higher driving voltage (the first recovery voltage V1), again because by the constraint of macromolecular material, so after driving voltage release, oval ball its elastic restoring force of mat can get back to the ball fettered by macromolecule.That is, along with the driving of higher first recovery voltage V1, oval ball can have larger elastic restoring force, so after the first recovery voltage V1 driving terminates, the iso ball of optics of macromolecule constraint more easily got back to by oval ball, therefore traditional black plug picture (dark-state) of continuing can be allowed more black, and then eliminate or improve the dark-state light leak of blue phase liquid crystal.In addition, under the first higher recovery voltage V1 drives, the crystalline network of blue phase liquid crystal may be destroyed and make it present nematic (nematic) liquid crystal phase, so after the first recovery voltage V1 driving terminates, crystalline network is got back to the iso ball state of optics of macromolecule constraint immediately and is not had hysteresis phenomenon, so can eliminate or improve the dark-state light leak of blue phase liquid crystal.
As shown in Figure 3A, in the present embodiment, the first gray scale voltage G1, the first recovery voltage V1 and the first black plug voltage B1 is sequentially transmitted in a frame time T, and transmitting the first gray scale voltage G1 when then transmitting the first recovery voltage V1, the first gray scale voltage G1 is contrary with the polarity of the first recovery voltage V1.Wherein, the object namely transmitting opposite polarity first recovery voltage V1 after the first gray scale voltage G1 has transmitted is the reversal in order to electric field, avoids liquid crystal molecule polarized and cannot rotate in response to the change of electric field again.
In addition, in a frame time T, transmitting the first gray scale voltage G1 can between 1: 1 ~ 1: 0.025 to the working time ratio of pixel to pixel and transmission the first recovery voltage V1.And in a frame time T, transmit the first recovery voltage V1 to pixel and to transmit that the first black plug voltage B1 can be situated between to the working time ratio of pixel be between 1: 1 ~ 1: 0.025.The blue phase liquid crystal display device 1 that user Ke Yi is different arranges the working time ratio of the first different gray scale voltage G1, the first recovery voltage V1 and the first black plug voltage B1, is not limited at this.
Please refer to shown in Fig. 3 B, it is another time diagram that driving method of the present invention drives blue phase liquid crystal display device 1.
The main different of Fig. 3 B and Fig. 3 A are, the driving method of Fig. 3 B also can comprise: by data line transmit one second gray scale voltage G2 to pixel, transmit one second recovery voltage V2 by data line and transmit one second black plug voltage B2 to pixel to pixel and by data line.Wherein, the absolute value of the second recovery voltage V2 is higher than the absolute value of the second gray scale voltage G2 and the second black plug voltage B2, and the absolute value of the second recovery voltage V2 is preferably between 1.2 times to 4 times of the absolute value of the second gray scale voltage G2 and the second black plug voltage B2.In addition, the first recovery voltage V1 can be equal or unequal with the absolute value of the second recovery voltage V2.At this, for equal.In addition, the second black plug voltage B1 is also traditional black insertion technology, and voltage can be zero in fact.
In the present embodiment, in two continuous print frame time T, the first gray scale voltage G1, the second gray scale voltage G2, the first recovery voltage V1, the second recovery voltage V2, the first black plug voltage B1 and the second black plug voltage B2 is sequentially transmitted.The blue phase liquid crystal display device 1 that user Ke Yi is different arranges the working time ratio of the second different gray scale voltage G2, the second recovery voltage V2 and the second black plug voltage B2, is not limited at this.In addition, the working time ratio of the first recovery voltage V1 and the second recovery voltage V2 can be identical or not identical, at this, to be all example mutually.In addition, the first gray scale voltage G1 is contrary with the polarity of the second gray scale voltage G2, and the first gray scale voltage G1 and the second gray scale voltage G2 can be adjacent or non-conterminous, at this, for adjacent.In addition, the polarity of the first recovery voltage V1 and the second recovery voltage V2 is contrary, and the first black plug voltage B1 is contrary with the polarity of the second black plug voltage B2, and the second gray scale voltage G2 is contrary with the polarity of the first recovery voltage V1.
In addition, please refer to shown in Fig. 3 C, it is the another time diagram that driving method of the present invention drives blue phase liquid crystal display device.
The main different of Fig. 3 C and Fig. 3 B are, the driving method of Fig. 3 C sequentially transmits the first gray scale voltage G1, the second gray scale voltage G2, the first recovery voltage V1, the first black plug voltage B1 and the second black plug voltage B2 in two continuous print frame time T, and in follow-up two frame time T, sequentially transmit the first gray scale voltage G1, the second gray scale voltage G2, the second recovery voltage V2, the first black plug voltage B1 and the second black plug voltage B2.The working time ratio of the first recovery voltage V1 and the second recovery voltage V2 can be identical or not identical, at this, to be all example mutually.In addition, the first gray scale voltage G1 is contrary with the polarity of the second gray scale voltage G2, and the polarity of the first recovery voltage V1 second recovery voltage V2 is contrary, and the second gray scale voltage G2 is contrary with the polarity of the first recovery voltage V1.
In addition, please refer to shown in Fig. 3 D, it is the time diagram again that driving method of the present invention drives blue phase liquid crystal display device.
The main different of Fig. 3 D and Fig. 3 B are, the driving method of Fig. 3 D sequentially transmits the first gray scale voltage G1, the second gray scale voltage G2, the first recovery voltage V1 and the first black plug voltage B1 in two frame time T, and in follow-up two frame time T, sequentially transmit the first gray scale voltage G1, the second gray scale voltage G2, the second recovery voltage V2 and the second black plug voltage B2.The working time ratio of the first recovery voltage V1 and the second recovery voltage V2 can be identical or not identical, at this, to be all example mutually.In addition, the first gray scale voltage G1 is contrary with the polarity of the second gray scale voltage G2, and the polarity of the first recovery voltage V1 second recovery voltage V2 is contrary, and the second gray scale voltage G2 is contrary with the polarity of the first recovery voltage V1.
In addition, please refer to shown in Fig. 4, it is the schematic diagram using driving method of the present invention to drive the dark-state penetrance of blue phase liquid crystal display device 1.At this, the sequential of Fig. 3 A is used to drive.Wherein, the longitudinal axis is the dark-state penetrance of blue phase liquid crystal display device 1, and transverse axis is different initial first gray scale voltage value.
Known black insertion technology does not have the first recovery voltage, after inputting the first gray scale voltage, namely inputs black plug voltage; Type of drive of the present invention is then after input first gray scale voltage, sequentially inputs the first recovery voltage and black plug voltage again, and wherein, the intensity of the first recovery voltage is greater than black plug voltage and gray scale voltage.In the diagram, the intensity of the first recovery voltage V1 for 200 volts, and measured with the sample that the spacing of two adjacent pixel electrodes 221 is greater than 10um.
Can find by Fig. 4, if with known black insertion technology, input the first different gray scale voltage G1, and continue applying first black plug voltage B1 (1 volt) drive pixel time, its dark-state penetrance rather unstable (diamond curve), about between 1.3% ~ 4.8%.But, if with driving method of the present invention, after the first gray scale voltage G1 that input is different, continue again and apply the first recovery voltage V1 of the present invention and the first black plug voltage B1 when sequentially driving pixel, the stability of its dark-state penetrance obviously uprises, about between 1% ~ 1.3% (square curve).On the products application of reality, consider the selection of driving circuit design and liquid crystal material, the first recovery voltage can between 15-60 volt, the same dark-state light leak that can improve liquid crystal indicator, and the effect that the stability with dark-state penetrance significantly improves.Therefore, blue phase liquid crystal display device driving method of the present invention not only can improve the dark-state light leak of liquid crystal indicator, also can improve the stability of its dark-state penetrance.
In sum, because of according to blue phase liquid crystal display device driving method of the present invention by data line transmit the first gray scale voltage to pixel, transmit the first recovery voltage by data line and transmit the first black plug voltage to pixel to pixel and by data line, wherein the absolute value of the first recovery voltage is higher than the absolute value of the first gray scale voltage and the first black plug voltage.By this, after transmission first gray scale voltage, then the first higher recovery voltage can be transmitted, blue phase liquid crystal is made to have higher restoring force, to return to the iso ball state of optics, not only can improve the dark-state light leak of blue phase liquid crystal display device, also can improve the stability of its dark-state penetrance.
The foregoing is only illustrative, but not be restricted.Anyly do not depart from spirit of the present invention and scope, and to its equivalent modifications of carrying out or change, all should be contained in the claimed scope of appending claims.
Claims (18)
1. a blue phase liquid crystal display device driving method, coordinates with a blue phase liquid crystal display device, and this blue phase liquid crystal display device has at least one data line, at least one sweep trace and at least one pixel, and this driving method comprises the following steps:
One first gray scale voltage is transmitted to this pixel by this data line;
One first recovery voltage is transmitted to this pixel by this data line; And
Transmit one first black plug voltage to this pixel by this data line, wherein the absolute value of this first recovery voltage is higher than the absolute value of this first gray scale voltage and this first black plug voltage,
Wherein said data line sequentially transmits this first gray scale voltage, this first recovery voltage and this first black plug voltage in a frame time.
2. driving method as claimed in claim 1, when then transmitting this first recovery voltage after wherein transmitting this first gray scale voltage, this first gray scale voltage is contrary with the polarity of this first recovery voltage.
3. driving method as claimed in claim 1, wherein in a frame time, transmits this first gray scale voltage to this pixel and transmit the working time ratio of this first recovery voltage to this pixel between 1:1 ~ 1:0.025.
4. driving method as claimed in claim 1, wherein in a frame time, transmits this first recovery voltage to this pixel and transmit the working time ratio of this first black plug voltage to this pixel between 1:1 ~ 1:0.025.
5. driving method as claimed in claim 1, also comprises:
One second gray scale voltage is transmitted to this pixel by this data line.
6. driving method as claimed in claim 1, also comprises:
One second gray scale voltage and one second recovery voltage is transmitted to this pixel by this data line.
7. driving method as claimed in claim 1, also comprises:
One second gray scale voltage and one second black plug voltage is transmitted to this pixel by this data line.
8. driving method as claimed in claim 1, also comprises:
One second gray scale voltage, one second recovery voltage and one second black plug voltage is transmitted to this pixel by this data line.
9. driving method as claimed in claim 5, wherein this first gray scale voltage is contrary with the polarity of this second gray scale voltage.
10. driving method as claimed in claim 6, wherein this first recovery voltage is contrary with the polarity of this second recovery voltage.
11. driving methods as claimed in claim 7, wherein this first black plug voltage is contrary with the polarity of this second black plug voltage.
12. driving methods as claimed in claim 8, wherein sequentially transmit this first gray scale voltage, this second gray scale voltage, this first recovery voltage, this second recovery voltage, this first black plug voltage and this second black plug voltage in two frame times.
13. driving methods as claimed in claim 8, wherein sequentially transmit this first gray scale voltage, this second gray scale voltage, this first recovery voltage, this first black plug voltage and this second black plug voltage in two frame times.
14. driving methods as claimed in claim 13, wherein sequentially transmit this first gray scale voltage, this second gray scale voltage, this second recovery voltage, this first black plug voltage and this second black plug voltage in two follow-up frame times.
15. driving methods as claimed in claim 8, wherein sequentially transmit this first gray scale voltage, this second gray scale voltage, this first recovery voltage and this first black plug voltage in two frame times.
16. driving methods as claimed in claim 15, wherein sequentially transmit this first gray scale voltage, this second gray scale voltage, this second recovery voltage and this second black plug voltage in two follow-up frame times.
17. driving methods as claimed in claim 6, wherein this first recovery voltage or this second recovery voltage are between 15 volts to 60 volts.
18. driving methods as claimed in claim 1, wherein the absolute value of this first recovery voltage is between 1.2 times to 4 times of the absolute value of this first gray scale voltage and this first black plug voltage.
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| TW200725534A (en) * | 2005-12-23 | 2007-07-01 | Innolux Display Corp | Method for driving liquid crystal display panel |
| TWI312980B (en) * | 2004-09-09 | 2009-08-01 | Chunghwa Picture Tubes Ltd | Driving method |
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| US7528822B2 (en) * | 2001-11-20 | 2009-05-05 | E Ink Corporation | Methods for driving electro-optic displays |
| TWI390291B (en) * | 2009-12-15 | 2013-03-21 | Au Optronics Corp | Liquid crystal display device |
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| TWI312980B (en) * | 2004-09-09 | 2009-08-01 | Chunghwa Picture Tubes Ltd | Driving method |
| TW200725534A (en) * | 2005-12-23 | 2007-07-01 | Innolux Display Corp | Method for driving liquid crystal display panel |
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