CN101165548A - Driving method of liquid crystal display - Google Patents
Driving method of liquid crystal display Download PDFInfo
- Publication number
- CN101165548A CN101165548A CN 200610135986 CN200610135986A CN101165548A CN 101165548 A CN101165548 A CN 101165548A CN 200610135986 CN200610135986 CN 200610135986 CN 200610135986 A CN200610135986 A CN 200610135986A CN 101165548 A CN101165548 A CN 101165548A
- Authority
- CN
- China
- Prior art keywords
- view data
- pixel
- data
- frame period
- lcd
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The method comprises: deciding if the number N image data which will be outputted to a pixel in the number N frame cycle is different from the number N-1 image data which is outputted to the pixel in the number N-1 frame cycle; if yes, before outputting the number N image to the pixel, a black pixel data is outputted to the pixel; if not, outputting the number N image data to the pixel.
Description
Technical field
The present invention is relevant to a kind of driving method of LCD, refers to a kind of liquid crystal display driving method that uses black pixel to insert especially.
Background technology
Because LCD (Liquid Crystal Display, LCD) have that external form is frivolous, characteristic such as low power consumption and radiationless pollution, therefore be widely used in mobile computer, personal digital assistant (Personal Digital Assistant, PDA), on portable such as digital camera and the digital camera information products, and replace traditional cathode-ray tube (CRT) (Cathode Ray Tube, CRT) display gradually.But LCD also has its shortcoming, because the restriction of liquid crystal molecule characteristic when switching view data, must be reversed liquid crystal molecule to change its orientation, so could show the image of different color ranges.When the reaction velocity of liquid crystal material did not catch up with the switch speed of view data, the incorrect situation of image tonescale appearred in this moment easily, and especially when LCD during at the demonstration dynamic image, the incorrect phenomenon of this image tonescale can be more obvious.And because the effect that human eye vision persists, when watching dynamic image, be easy to generate the impression that picture postpones,, how improve the correctness of image tonescale demonstration and reduce the important topic that picture postpones also to become the design LCD for quick switching in response to multi-media image.
Please refer to the 1st figure, the 1st figure is pixel (Pixel) driving voltage of a LCD in the prior art and the sequential chart of its light penetration rate.In the 1st figure, C1 and C2 representative export the data voltage of pixel to, and when pixel-by-pixel basis was received data voltage C1 and C2, the curve of its ideal light rays penetrance was represented by the solid line of the 1st figure; The actual light penetrance of curve V1 represent pixel is represented by the broken broken line of the 1st figure; F
n-F
N+3Represent the adjacent frame period (Frame Period).If at frame period F
nThe time, the pixel in the LCD needs to switch to data voltage C2 by data voltage C1.Because liquid crystal molecule has a time delay when rotated, and can't be at frame period F
nDeflect into predetermined angle during beginning, therefore possibly can't be at frame period F at once
nTime in reach predetermined light penetration rate.Shown in the curve of light penetration rate V1 among the 1st figure, light penetration rate V1 can't be at frame period F
nThe predetermined penetrance of interior arrival, and must wait until frame period F
N+2Just can arrive predetermined penetrance.Aforementioned circumstances can make LCD the phenomenon that picture postpones occur, and influences the display quality of LCD.
Improving the effective method of aforementioned picture delay phenomenon is the reaction velocity of accelerating liquid crystal material, generally can use (Over Drive) mode of overdriving to drive LCD.Please refer to the 2nd figure, the 2nd figure is the sequential chart of its pixel voltage and its light penetration rate when a LCD is used over-driving method in the prior art.In the 2nd figure, C1 and C2 representative export the data voltage of pixel to, and when pixel-by-pixel basis was received data voltage C1 and C2, the curve of its ideal light rays penetrance was represented by the solid line of the 1st figure; The C3 representative exports the extremely drive data voltage of pixel to, and when pixel-by-pixel basis was received extremely drive data voltage C3, the curve of its ideal light rays penetrance was also represented by the corresponding solid line of the 1st figure; The actual light penetrance of curve V2 represent pixel is represented by the broken broken line of the 2nd figure; F
nAnd F
N+1Represented for two adjacent frame periods.If at frame period F
nThe time, the pixel in the LCD needs to switch to data voltage C2 by data voltage C1, and this moment, prior art can apply extremely drive data voltage C3 to pixel, to accelerate the reaction velocity of liquid crystal molecule.Shown in the 2nd figure,, can accelerate the reaction velocity of liquid crystal material, so pixel is at frame period F because extremely drive data voltage C3 is higher than data voltage C2
nIn can deflect to predetermined angular and reach predetermined light penetration rate, shown in the curve of light penetration rate V2 among the 2nd figure.
Though accelerating the speed of liquid crystal, the use mode of overdriving to improve the correctness that image tonescale shows, yet, human eye vision persists phenomenon because liquid crystal is to show with hold mode, therefore human eye still can be experienced the effect that causes picture to postpone, therefore the general technology that can adopt black frame insertion (Black Frame Insertion) in addition, between each frame period, insert and show black image, produce the fast-pulse modulation effect similar, solve the human eye impression and reduce the visual impact that picture postpones to cathode-ray tube (CRT).Please refer to the 3rd figure, the 3rd figure has illustrated and has inserted the method for improving the LCD picture delay phenomenon by picture black in the prior art.In the 3rd figure, picture P
1-P
nRepresent a LCD at time point T
1-T
nThe time shown normal pictures, and picture B
1-B
nBe complete black picture.In order to reduce the picture delay phenomenon of LCD, the settling mode of prior art is to insert to show a complete black picture between the normal display image in the normal display image in a frame period and next frame cycle, that is shows P in regular turn
1-B
1-P
2-B
2-...-P
n-B
n
Though the method for prior art shown in the 3rd figure can be improved the phenomenon that LCD picture postpones,, so can reduce display panels brightness performance visually because each frame period all need be partitioned into a period of sub-frame to show complete black picture.When spectators are viewing and admiring picture P
1-p
nImage the time because at output picture P
1-P
nBetween can the complete black picture B of output
1-B
n, spectators can feel picture P
1-P
nThe figure kine bias dark.Therefore,, also can significantly reduce the brightness performance of LCD simultaneously, influence display quality though prior art can be improved the phenomenon that picture postpones.
Please refer to the 4th figure, the 4th figure is the synoptic diagram that uses the shown brightness of image of LCD when overdriving mode in the prior art.In the 4th figure, transverse axis is represented the time, and the longitudinal axis is represented the brightness of the shown image of LCD.The 4th figure has shown 6 frame period F
1-F
6, suppose that a pixel is at frame period F
1, F
2, F
5And F
6The time to desire the color range of display image identical, this moment, ideal image brightness was by I
1Represent.Simultaneously, pixel is at frame period F
3And F
4The time to desire the color range of display image identical, and be higher than at frame period F
1, F
2, F
5, and F
6The time desire the color range of display image, this moment, ideal image brightness was by I
2Represent.In other words, pixel is at frame period F
1, F
2, F
3, F
4, F
5And F
6The time shown image desirable brightness be respectively I
1, I
1, I
2, I
2, I
1And I
1, its desirable brightness curve is represented by the broken broken line among the 4th figure.From frame period F
2To frame period F
3The time, pixel is at two adjacent frame period F
2And F
3The middle color range difference of desiring display image generally can be at time point T
2The time apply an extremely drive data voltage that is higher than ideal data voltage, make that the shown brightness of image of pixel can be as soon as possible from I
1Rise to I
2In like manner, from frame period F
4To frame period F
5The time, pixel is at two adjacent frame period F
4And F
5The middle color range difference of desiring display image generally can be at time point T
4The time apply an extremely drive data voltage that is lower than ideal data voltage, make that the shown brightness of image of pixel can be as soon as possible from I
2Reduce to I
1
Please refer to the 5th figure, the 5th figure is the synoptic diagram of the shown brightness of image of LCD when using black picture to insert in the prior art.In the 5th figure, transverse axis is represented the time, and the longitudinal axis is represented the brightness of the shown image of LCD.6 frame period F have been shown among the 5th figure
1-F
6, suppose that a pixel is at frame period F
1, F
2, F
5And F
6The time to desire the color range of display image identical, this moment pixel ideal image brightness by I
1Represent.Simultaneously, suppose that pixel is at frame period F
3And F
4The time to desire the color range of display image identical, and be higher than at frame period F
1, F
2, F
5And F
6The time desire the color range of display image, this moment pixel ideal image brightness by I
2Represent.In other words, pixel is at frame period F
1, F
2, F
3, F
4, F
5And F
6The time shown image desirable brightness be respectively I
1, I
1, I
2, I
2, I
1And I
1, its desirable brightness curve is represented by the broken broken line among the 5th figure.In order to improve the phenomenon that LCD picture postpones, pixel each frame period except showing normal pictures, also can show complete black picture.Therefore, black picture inserts and makes pixel at time point T
1One T
6The time shown image brightness far below ideal value, shown in the 5th figure.
Prior art is used black picture to insert and is driven LCD, and system is a unit with the sweep trace when picture data is deceived in insertion, in each frame period, changes no matter sweep trace is desired the color range of display image, all can insert demonstration and deceive picture data.Though so can improve the phenomenon that picture postpones, also can significantly reduce the brightness performance of LCD simultaneously, influence display quality.
Summary of the invention
The invention provides a kind of driving method of LCD, it comprises the N view data that judgement desires to export to a pixel in a N frame period and whether is different from (N-1) view data that exports this pixel in (N-1) frame period to; When this N view data is different from this (N-1) view data when surpassing a preset range, to this pixel, the one black pixel data of output earlier is to this pixel in this N view data of output; And be different from this (N-1) view data when being no more than this preset range when this N view data, directly export this N view data to this pixel.
The present invention provides a kind of LCD that black pixel is inserted of carrying out in addition, and it comprises one first memory storage, has the view data that exports a pixel in each frame period in it; One comparison means, be used for receiving and be relevant to this pixel and desire a N view data of display image in the frame period in a N, read from this first memory storage and to be relevant to this pixel, and judge whether this N view data is identical with (N-1) view data in one (N-1) one (N-1) view data of shown image in the frame period; And one black pixel insert arithmetic unit, be used for judging that when this comparison means this N view data and (N-1) export this N view data to this pixel when view data is identical, and judging that when this comparison means this N view data and (N-1) view data do not export this N view data and a black pixel data simultaneously to this pixel.
Description of drawings
The 1st figure is the pixel voltage of a LCD in the prior art and the sequential chart of its light penetration rate.
The 2nd figure is the sequential chart of its pixel voltage and its light penetration rate when a LCD is used over-driving method in the prior art.
The 3rd figure uses picture black to insert synoptic diagram when driving LCD in the prior art.
The 4th figure is the synoptic diagram that uses the shown brightness of image of LCD when overdriving mode in the prior art.
The 5th figure is the synoptic diagram of the shown brightness of image of LCD when using black picture to insert in the prior art.
The 6th figure is the process flow diagram of a liquid crystal display driving method in the first embodiment of the invention.
The 7th figure is the synoptic diagram of the shown brightness of image of LCD in the first embodiment of the invention.
The 8th figure is the process flow diagram of a liquid crystal display driving method in the second embodiment of the invention.
The 9th figure is the functional block diagram of a view data generator among the present invention.
The 10th figure is the functional block diagram of a LCD among the present invention.
[primary clustering symbol description]
C1, C2 data voltage C3 extremely drive data voltage
V1, V2 light penetration rate I
1, I
2Brightness of image
P
1-P
nNormal pictures B
1-B
nComplete black picture
82 driving circuits, 86 electronics Erasable Programmable Read Only Memory EPROMs
84 frame storage unit, 88 black pixels are inserted arithmetic element
94 comparing units, 95 gate drivers
96 source electrode drivers, 97 black pixels are inserted circuit
98 display panels, 99 power supply circuits
100 LCD
SW
1-SW
NSwitch T
1-T
nTime point,
D
N、D
N-1、D
N’、D
N(l)-D
N(m)、
D
N-1(l)-D
N-1(m), D
N' (l)-D
N' (m) view data
600-640,800-860 step
Embodiment
The present invention uses black pixel to insert (Black Pixel Insertion) and drives LCD, when inserting black picture data, be unit with the pixel, and, determine whether inserting the black pixel data of demonstration according to the color range variation of desiring display image at each frame period interior pixel.
Please refer to the 6th figure, the 6th figure is the process flow diagram of a liquid crystal display driving method in the first embodiment of the invention.The process flow diagram of the 6th figure comprises the following step:
Step 600: store a relevant pixel and desire one (N-1) view data of display image in the frame period in one (N-1).
Step 610: produce relevant this pixel and desire a N view data of display image in the frame period in a N.
Step 620: judge whether the N view data is different from (N-1) view data: surpass a predetermined value, execution in step 630 if the N view data is different from the value of (N-1) view data; If the N view data is different from the value of (N-1) view data and is no more than predetermined value, execution in step 640.
Step 630: output one black pixel data is to pixel; Execution in step 640.
Step 640: export the N view data to pixel.
In first embodiment of the invention, at first in step 600, store and be relevant to pixel and desire (N-1) view data of display image in the frame period in (N-1), again in step 610 at pixel in the N image that desire shows in the frame period, produce relevant N view data.To pixel, the present invention judges in step 620 whether the N view data is different from (N-1) view data in output N view data.Surpass predetermined value if the N view data is different from the value of (N-1) view data, expression previous image data and current image data difference are excessive, and can carry out black pixel and insert this moment in step 630, export a black pixel data to pixel.If the N view data is not different from (N-1) view data, can't carries out black pixel this moment and insert, but can in step 640, export the N view data to pixel.
Please refer to the 7th figure, the 7th figure is the synoptic diagram of the shown brightness of image of LCD in the first embodiment of the invention.In the 7th figure, transverse axis is represented the time, and the longitudinal axis is represented the brightness of the shown image of LCD.6 frame period F have been shown among the 7th figure
1-F
6, suppose that a pixel is at frame period F
1, F
2, F
5And F
6The time to desire the color range of display image identical, this moment, ideal image brightness was by I
1Represent.Simultaneously, suppose that pixel is at frame period F
3And F
4The time to desire the color range of display image identical, and be higher than at frame period F
1, F
2, F
5And F
6The time desire the color range of display image, this moment, ideal image brightness was by I
2Represent.In other words, pixel is at frame period F
1, F
2, F
3, F
4, F
5And F
6The time shown image desirable brightness be respectively I
1, I
1, I
2, I
2, I
1And I
1, its desirable brightness curve is represented by the broken broken line among the 7th figure.When pixel is desired the color range of display image not simultaneously (for example from frame period F in two adjacent frame periods
2To frame period F
3, and from frame period F
4To frame period F
5), first embodiment of the invention can be carried out black pixel and insert, so pixel is at time point T
2And T
4The time shown image the brightness meeting be lower than ideal value.When pixel in two adjacent frame periods, desire the color range of display image when identical (for example from frame period F
1To frame period F
2, frame period F
3To frame period F
4, and from frame period F
5To frame period F
6), first embodiment of the invention can't be carried out black pixel and insert, so pixel is at time point T
1, T
3And T
5The time shown image brightness be same as ideal value.First embodiment of the invention is only desired display image in pixel in two adjacent frame periods color range difference just can be carried out black pixel and insert during greater than a predetermined value.Therefore, the present invention can improve the phenomenon that LCD picture postpones, and but can significantly not reduce the brightness performance of display panels.
Please refer to the 8th figure, the 8th figure is the process flow diagram of a liquid crystal display driving method in the second embodiment of the invention.The process flow diagram of the 8th figure comprises the following step:
Step 800: store a relevant pixel and desire one (N-1) view data of display image in the frame period in one (N-1).
Step 810: produce relevant this pixel and desire a N view data of display image in the frame period in a N.
Step 820: judge whether the N view data is different from (N-1) view data: surpass a predetermined value, execution in step 830 if the N view data is different from the value of (N-1) view data; If the N view data is different from the value of (N-1) view data and is no more than predetermined value, execution in step 860.
Step 830: generation one is relevant to the extremely drive data of N view data;
Execution in step 840.
Step 840: output one black pixel data is to pixel; Execution in step 850.
Step 850: export N view data and extremely drive data to pixel.
Step 860: export the N view data to pixel.
Compared to first embodiment of the invention, when second embodiment of the invention judges that the N view data is different from (N-1) view data in step 820, can be relevant to the extremely drive data of N view data in addition in step 830 generation one, be step 840 output one black pixel data to pixel, second embodiment of the invention can be exported N view data and extremely drive data simultaneously to pixel in step 850.Same with reference to the 7th figure, when pixel is desired the color range of display image not simultaneously (for example from frame period F in two adjacent frame periods
2To frame period F
3, and from frame period F
4To frame period F
5), second embodiment of the invention can be carried out earlier black pixel and insert and export extremely drive data again, makes time point T
2The time pixel shown brightness of image can be as soon as possible from I
1Rise to I
2, and time point T
4The time pixel shown brightness of image can be as soon as possible from I
2Reduce to I
1Second embodiment of the invention is only desired display image in pixel in two adjacent frame periods color range difference just can be carried out black pixel and insert and the mode of overdriving during greater than a predetermined value.Therefore, second embodiment of the invention can further be improved the phenomenon that LCD picture postpones, but can significantly not reduce the brightness performance of display panels.
In the present invention first and second embodiment, at time point T
2And T
4In time, can be carried out the most black pixel of black contrast and inserted, or black pixel of other low black contrast is inserted.
Please refer to the 9th figure, the 9th figure is the functional block diagram of a view data generator 90 among the present invention.View data generator 90 comprises one drive circuit 82, a frame storage unit 84, and an electronics Erasable Programmable Read Only Memory EPROM (Electrically ErasableProgrammable Read-Only Memory, EEPROM) 86.Driving circuit 82 comprises a black pixel and inserts an arithmetic element 88 and a comparing unit 94.There is the view data that exports pixel in each frame period in the frame storage unit 84.In the N image that desire shows in the frame period, view data generator 90 at first produces corresponding view data D at a pixel
N, and with view data D
NReach frame storage unit 84 and driving circuit 82.The comparing unit 94 of driving circuit 82 reads from frame storage unit 84 and is relevant to pixel and desires the view data D of display image in the frame period in last (N-1)
N-1, and judge view data D
NWith view data D
N-1Between difference whether greater than a predetermined value.The black pixel of driving circuit 82 is inserted arithmetic element 88 can decide the view data D that exports pixel to according to the judged result of comparing unit 94
N' whether need to comprise black pixel data.In addition, the look-up table of driving circuit 82 internal memories (Lookup Table, LUT) 92 and electronics Erasable Programmable Read Only Memory EPROM 86 comprise and carry out data required when overdriving, can be according to view data D
NValue provide corresponding overdrive voltage to driving circuit 82.
Please refer to the 10th figure, the 10th figure is the functional block diagram of a LCD 100 among the present invention.LCD 100 comprises a gate pole driver (Gate Driver) 95, one source pole driver (Source Driver) 96, one black pixel is inserted circuit 97, a display panels 98, and a power supply circuit 99.Required power supply when power supply circuit 99 can provide gate drivers 95, source electrode driver 96 and black pixel to insert circuit 97 runnings.Black pixel insertion circuit 97 can comprise view data generator 90 and the clock controller function shown in the 9th figure, therefore can in a frame period, desire difference between display image and the shown image of former frame cycle at a pixel, export corresponding source drive signal to source electrode driver 96,96 of source electrode drivers can be exported the view data that comprises black pixel data or do not contain black pixel data pixel so far according to the source drive signal.
The color range that the present invention desires display image according to a pixel in each frame period changes, and determines whether carrying out black pixel and inserts and the mode of overdriving.Therefore, the present invention can improve the phenomenon that LCD picture postpones, but can significantly not influence the brightness performance of display panels.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (13)
1. the driving method of a LCD, it comprises:
Whether the N view data that judgement desires to export to a pixel in a N frame period is different from (N 1) frame period and exports (N-1) view data of this pixel to;
When this N view data is different from this (N-1) view data when surpassing a preset range, to this pixel, the one black pixel data of output earlier is to this pixel in this N view data of output; And
When this N view data is different from this (N-1) view data when being no more than this preset range, directly export this N view data to this pixel.
2. the method for claim 1, it comprises in addition:
Relatively this N view data and this (N-1) view data.
3. method as claimed in claim 2, it comprises in addition:
Store this (N-1) view data.
4. method as claimed in claim 3, it comprises in addition:
Read this (N-1) view data to make comparisons with this N view data.
5. the method for claim 1, it comprises:
Produce this N view data and (N-1) view data.
6. the method for claim 1, it comprises in addition:
Should deceive pixel data to this pixel in output, export this N view data to this pixel.
7. the method for claim 1, it comprises in addition:
When this N view data is different from this (N-1) view data, produce an extremely drive data that is relevant to this N view data.
8. method as claimed in claim 7, it comprises in addition:
Export this N view data and this extremely drive data to this pixel.
9. can carry out the LCD that black pixel is inserted for one kind, it comprises:
One first memory storage has the view data that exports a pixel in each frame period in it;
One comparison means, be used for receiving and be relevant to this pixel and desire a N view data of display image in the frame period in a N, read from this first memory storage and to be relevant to this pixel, and judge whether this N view data is identical with (N-1) view data in one (N-1) one (N-1) view data of shown image in the frame period; And
One black pixel is inserted arithmetic unit, be used for judging that when this comparison means this N view data and (N-1) export this N view data to this pixel when view data is identical, and judging that when this comparison means this N view data and (N-1) view data do not export this N view data and a black pixel data simultaneously to this pixel.
10. LCD as claimed in claim 9, it comprises one second memory storage in addition, the data that have the overdrive voltage that is relevant to a view data in it should black pixel insertion arithmetic unit be to come output data according to the data of this second memory storage internal memory wherein.
11. LCD as claimed in claim 10, wherein this second memory device comprises an electronics Erasable Programmable Read Only Memory EPROM.
12. LCD as claimed in claim 9, it comprises an image forming appts in addition, is used for producing this N view data and (N-1) view data.
13. LCD as claimed in claim 9, it comprises an image forming appts in addition, is used for producing this N view data, (N-1) view data, and should black pixel data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610135986 CN101165548A (en) | 2006-10-16 | 2006-10-16 | Driving method of liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610135986 CN101165548A (en) | 2006-10-16 | 2006-10-16 | Driving method of liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101165548A true CN101165548A (en) | 2008-04-23 |
Family
ID=39334299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610135986 Pending CN101165548A (en) | 2006-10-16 | 2006-10-16 | Driving method of liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101165548A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280083A (en) * | 2011-08-24 | 2011-12-14 | 华映视讯（吴江）有限公司 | Display capable of improving image quality and method thereof |
| CN102447921A (en) * | 2010-10-12 | 2012-05-09 | 乐金显示有限公司 | 3d image display device and driving method thereof |
| CN102682717A (en) * | 2012-03-23 | 2012-09-19 | 友达光电股份有限公司 | Driving method and driving circuit of display unit |
| CN105448263A (en) * | 2015-12-31 | 2016-03-30 | 华为技术有限公司 | Display drive device and display drive method |
-
2006
- 2006-10-16 CN CN 200610135986 patent/CN101165548A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447921A (en) * | 2010-10-12 | 2012-05-09 | 乐金显示有限公司 | 3d image display device and driving method thereof |
| US8704883B2 (en) | 2010-10-12 | 2014-04-22 | Lg Display Co., Ltd. | 3D image display device and driving method thereof |
| CN105301785A (en) * | 2010-10-12 | 2016-02-03 | 乐金显示有限公司 | 3D image display device and driving method thereof |
| CN102280083A (en) * | 2011-08-24 | 2011-12-14 | 华映视讯（吴江）有限公司 | Display capable of improving image quality and method thereof |
| CN102682717A (en) * | 2012-03-23 | 2012-09-19 | 友达光电股份有限公司 | Driving method and driving circuit of display unit |
| CN105448263A (en) * | 2015-12-31 | 2016-03-30 | 华为技术有限公司 | Display drive device and display drive method |
| CN105448263B (en) * | 2015-12-31 | 2018-05-01 | 华为技术有限公司 | Display drive apparatus and display drive method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101645244B (en) | Liquid crystal display device and driving method thereof | |
| US11475858B2 (en) | Driving method and circuit of display panel and display device | |
| US8330695B2 (en) | Liquid crystal display device, method for driving the same, and television receiver | |
| CN101320539A (en) | Display and method of driving the same | |
| US20110058024A1 (en) | Display apparatus and method of driving the same | |
| JP2012103664A (en) | Liquid crystal display device, and drive method for liquid crystal display device | |
| US20070176881A1 (en) | Driving circuit for driving liquid crystal display device and method thereof | |
| CN105118470A (en) | Grid electrode driving circuit and grid electrode driving method, array substrate and display panel | |
| CN101930715B (en) | Gray-insertion drive circuit and method thereof | |
| CN101281716B (en) | Display device | |
| US8072414B2 (en) | Display method on active matrix display | |
| CN101165548A (en) | Driving method of liquid crystal display | |
| US9697785B2 (en) | Display device | |
| US8009155B2 (en) | Output buffer of a source driver applied in a display | |
| CN101311782B (en) | Gray scale voltage generation circuit and its operation method | |
| US8274505B2 (en) | Driving method and device for a display | |
| CN100380189C (en) | Method for displaying liquid crystal display panel dynamic image | |
| KR101989931B1 (en) | Liquid crystal display and undershoot generation circuit thereof | |
| US20080158122A1 (en) | Liquid crystal display and driving method thereof | |
| JP5572412B2 (en) | Liquid crystal display | |
| US20120019508A1 (en) | Electrophoretic display and picture update method thereof | |
| KR101343496B1 (en) | Liquid crystal display device | |
| US20090040200A1 (en) | Method for driving display and a display driver thereof | |
| US20080122766A1 (en) | Display device and driving method thereof | |
| KR101726636B1 (en) | Liquid crystal display device using the same and driving method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080423 |