CN1476239A - Displayed picture treatment method used on liquid crystal display device - Google Patents
Displayed picture treatment method used on liquid crystal display device Download PDFInfo
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- CN1476239A CN1476239A CNA021278970A CN02127897A CN1476239A CN 1476239 A CN1476239 A CN 1476239A CN A021278970 A CNA021278970 A CN A021278970A CN 02127897 A CN02127897 A CN 02127897A CN 1476239 A CN1476239 A CN 1476239A
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Abstract
The method includes the following steps: inputting an input display picture by the first refreshed frequency; deciding a numbers of corresponding output display pictures according to the input display picture and last display picture before it; and outputting the output display picture in the second refreshed frequency larger than the first one in sequence. The voltage value of output display picture (ODP) is larger than voltage value of input one when voltage value of input display picture (IDP) is larger than voltage value of a last corresponding input display picture and valtage value of ODP is less than voltage value of IDP when valtage value of IDP is larger than voltage of last IDP.
Description
Technical field
The present invention relates to a kind of display frame processing unit, and be particularly related to a kind of display frame processing unit that is used for display panels.
Background technology
The development of imaging technique is maked rapid progress.With the display is example, traditional cathode ray tube (CathodeRay Tube, CRT) display is because bulky and radiation is serious, fade out the gradually in recent years market of high-grade display, the substitute is have low radiation, the LCD of low power consumption and compact advantage (Liquid Crystal Display, LCD).
Indicator screen is made up of several pixels (pixel) of arranging with matrix form.When display display frame (frame), drive circuit can be imported pixel voltage to corresponding pixel in order according to pixel data.And, upgrade the pixel voltage of importing each pixel according to pixel data, make display show different pictures.The phenomenon that the persistence of vision is arranged at the eyes owing to the people, so if the display frame renewal speed of display (refresh rate) arrives certain degree greatly, then the picture that upgrades fast is being seen at human eye is not the picture that flashes fast one by one just, but continuous dynamic picture composition, just film.When screen was play film, the renewal speed of display frame was big more, and the continuity of dynamic menu is just good more.So, human eye just can not felt that screen has the situation of flicker, and cause the discomfort of eyes when watching.Generally be with the unit of frequency as renewal speed, the frame updating speed of at present general display is more than the 60Hz, and promptly screen can show 60 picture datas in one second at least.
The pixel of LCD is made up of the liquid crystal layer between upper plate, lower plate and upper plate and the lower plate.A plurality of liquid crystal molecules are filled in the cavity between upper plate and the lower plate, form liquid crystal layer.And upper plate and lower plate have electrode respectively,, make when having the voltage of striding between upper plate and lower plate in the electrode application voltage of upper plate and lower plate when respectively, and the arrangement mode of the liquid crystal molecule in the liquid crystal layer can change along with the size of striding voltage.And the arrangement mode of liquid crystal molecule can influence the ratio of light penetration pixel, claims light transmittance (light transmissivity).The size of light transmittance has determined the brightness of pixel.Light transmittance is big more, and the brightness of pixel is just big more.So, can utilize control upper plate and lower plate to stride voltage swing, make that different pixels has different brightness on the LCD screen.
Please refer to Figure 1A-1B, it illustrates when pixel voltage changes, the schematic diagram that pixel intensity changes.Pixel for liquid crystal panel, when the pixel voltage of input pixel changes, because the physical characteristic of pixel liquid crystal molecule, liquid crystal molecule needs one period reaction time (response time), just can make the brightness of pixel do corresponding change, for example: shown in Figure 1A, when display frame f2, the pixel voltage size of input pixel is increased to V2 by V1.In theory, the intrinsic brilliance of pixel also will by the pairing pixel intensity B1 of pixel voltage V1, become the pairing pixel intensity B2 of pixel voltage V2, shown in the dotted line among Figure 1B from display frame f2.Because the physical characteristic of liquid crystal molecule, when the pixel voltage of input changed, the liquid crystal molecule of pixel needed a period of time to change its state but in fact.So need one period reaction time, liquid crystal molecule changes after its state, pixel could show appropriate brightness.In Figure 1B, though when display frame f2, the pixel voltage of input pixel changes, be when display frame f5, and the brightness of pixel just can become B2.When the pixel voltage of input pixel became V2 by V1, the brightness of pixel was changed into the reaction speed (response velocity) that the needed time of B2 is called this pixel by B1 originally.The needed reaction time of the liquid crystal molecule of pixel is long more, and then the reaction speed of this pixel is just slow more.During display frame f2-f5, the intrinsic brilliance of pixel can be littler than the pixel intensity of ideal state, shown in the oblique line part of Figure 1B.So, can have influence on the image display quality of liquid crystal panel.Therefore, when the pixel voltage of input pixel changes, how to accelerate the reaction speed of pixel, make that the area of the oblique line part shown in Figure 1B can be the smaller the better, to improve the display quality of liquid crystal panel, be that LCD manufacturer is out for the problem that will improve always.
Please refer to Fig. 2 A-2B, it is used to accelerate the schematic diagram of (overdrive) method of overdriving of the reaction speed of pixel for tradition.Tradition is when display frame is upgraded, and the method that is used to accelerate the reaction speed of pixel is: when pixel changes to high brightness by low-light level, at the first input voltage value of next display frame than the taller pixel voltage of pixel voltage that should import originally.Utilize input to require high pixel voltage than originally, draw high more quickly upper plate and lower plate between stride magnitude of voltage, with the reaction speed of quickening pixel.For example: in Fig. 2 A, when display frame f2, the pixel voltage of input pixel needs to rise to V2 by V1, and the brightness that is used to this pixel is shown rises to B2 by B1.In order to accelerate the reaction speed of pixel, when display frame f2, import a pixel voltage V3 also bigger earlier than pixel voltage V2.Pixel voltage V3 is called overdrive voltage (overdrive voltage).Utilize the input overdrive voltage, can accelerate the reaction speed of pixel.Be noted that in Fig. 2 B, the area of oblique line part is little than Figure 1B.In other words, use when overdriving method, the gap of the intrinsic brilliance of pixel and the pixel intensity of ideal state can diminish.
In like manner, when pixel changes to low-light level by high brightness, at next display frame elder generation input voltage value than the also low pixel voltage of pixel voltage that should import originally.Utilize input to require low pixel voltage, drag down the magnitude of voltage of striding between upper plate and the lower plate more quickly, to accelerate the reaction speed of pixel than originally.
Though the tradition method of overdriving can be accelerated the reaction speed of pixel, the gap of the intrinsic brilliance of improvement pixel and the pixel intensity of ideal state, the effect of improving is still limited.
Summary of the invention
The object of the present invention is to provide a kind of reaction speed that is used to accelerate pixel, make the method that the gap of the intrinsic brilliance of pixel and ideal state is further improved.
According to purpose of the present invention, a kind of displayed picture treatment method is proposed.Display frame is to import the display frame processing unit in order with first renewal frequency.The display frame processing unit is used to control the renewal frequency of the display frame of importing liquid crystal panel.Displayed picture treatment method comprises the following steps: at first at least, and an input display frame is inputed to the display frame processing unit.Then, the display frame processing unit can be according to corresponding several output display frames of the display frame decision of input display frame and this display frame processing unit of previous input.At last, this output display frame is exported from the display frame processing unit in order with second renewal frequency greater than first renewal frequency.
Wherein, output display frame is to be stored in advance in the display frame processing unit with the corresponding relation of input display frame and preceding input display frame.In addition, have at least one to cross output display frame in the output display frame, before the pixel data of input display frame is corresponding greater than previous input display frame during pixel data, cross the corresponding output pixel data of output display frame greater than this pixel data, and during pixel data, then output pixel data is less than this pixel data before the pixel data of input display frame is corresponding less than previous input display frame.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Figure 1A-1B is when pixel voltage changes, the schematic diagram of the change of pixel intensity.
Fig. 2 A-2B is used to accelerate the schematic diagram of the method for overdriving of the reaction speed of pixel for tradition.
Fig. 3 is the circuit block diagram of display frame display frame processing unit proposed by the invention.
Fig. 4 A-4B is the schematic diagram of displayed picture treatment method proposed by the invention.
Fig. 5 is the intrinsic brilliance of pixel demonstration and the corresponding relation figure that experiences brightness of human eye perception.
Embodiment
Characteristics of the present invention are, decide a plurality of output display frames according to previous display frame (frame) and present input display frame.And these output display frames are presented on the liquid crystal panel in order with renewal frequency faster.And cooperate the method for overdriving, accelerate the reaction speed of pixel, and the display brightness by making pixel with the gap of compensation pixel intrinsic brilliance that reaction speed is caused and ideal state, further improves the image display quality of liquid crystal panel greater than theoretical brightness.
Please refer to Fig. 3, it illustrates the circuit block diagram of display frame processing unit 300 proposed by the invention.Display frame processing unit 300 is made up of buffer 302, controller 304 and memory 306, is used for image processing is done in the display frame of input liquid crystal panel.Its detailed operation principle will be in hereinafter doing detailed description.Be noted that display frame is that the renewal frequency with 60Hz inputs in the display frame processing unit 300 in order.
When an input display frame DI inputed to display frame processing unit 300, input display frame DI can be fed into respectively in buffer 302 and the controller 304.Buffer 302 is to be used for receiving and to store this input display frame DI and previous input display frame processing unit 300 is imported display frame DI ' before.Memory 306 can be random access memory (Random Access Memory, RAM), be used for storing different input display frame DI and different preceding input display frame DI ' and pairing several output display frame DO thereof with the form of correspondence table (look up table).Controller 304 couples with buffer 302 and memory 306 respectively, be used for according to the input display frame DI and the preceding input display frame DI ' that are temporary in buffer 302, in memory 306, extract these corresponding output display frame DO, and it is exported in the liquid crystal panel in order with new renewal frequency.Wherein, the value of new renewal frequency is greater than the renewal frequency of input display frame.And the value of new renewal frequency is the multiple of the renewal frequency of input display frame DI.In the present embodiment, output display frame DO is with the speed of the twice (120Hz) of the renewal frequency (60Hz) of input display frame DI, exports in order and is presented on the liquid crystal panel.
Please refer to Fig. 4 A-4B, it illustrates the schematic diagram that displayed picture treatment method proposed by the invention cooperates the method for overdriving.The present invention cooperates the method for overdriving with renewal frequency faster, further accelerates the reaction speed of pixel, improves the image display quality of liquid crystal panel.With a pixel on the liquid crystal panel is example, if among the input display frame DI of input display frame processing unit 300, the pixel voltage V2 of this pixel is greater than the pixel voltage V1 of previous this pixel of input, then among several output display frame DO that display frame processing unit 300 is exported, has an output display frame DO at least, its pixel voltage can be greater than V2, in Fig. 4 A, in input display frame DI, the pixel voltage value that is used to import this pixel is to be represented by dotted lines, and among the output display frame DO, the pixel voltage value of actual this pixel of input then is to represent with thick black line.With Fig. 4 A is example, and when display frame f4, among the input display frame DI, the pixel voltage that is used to import this pixel will rise to V2 by V1 in theory.But in order to accelerate the reaction speed of pixel, therefore import among the output display frame N of this pixel in reality, the magnitude of voltage of pixel voltage (V3) is greater than theoretical value (V2).Its principle and the tradition method of overdriving is identical, does not repeat them here.Be noted that in the present invention, not limiting the pixel voltage value of having only an output display frame DO can be greater than the pixel voltage of input display frame DI.
In Fig. 4 A, import the pixel voltage of this pixel all than the pixel voltage height of importing display frame DI at output display frame f4, f5.This paper claims that the pixel voltage of display frame f4 and f5 is an overdrive voltage.Afterwards, when display frame f6 and f7, then import the bucking voltage of overdriving.The magnitude of voltage of the bucking voltage of overdriving (V4) not only is less than overdrive voltage (V3), and even littler than the input voltage that is used to drive pixel in theory (V2).Please refer to Fig. 4 B, pixel in theory the brightness that should show be to be represented by dotted lines, the in fact shown brightness of pixel then is to represent with thick black line.Because the physical characteristic of liquid crystal molecule, when pixel voltage changes, for example: shown in Fig. 4 B, when pixel voltage changed to V2 by V1, prior art also can't accomplish to allow the display brightness of pixel immediately change according to the change of pixel voltage.Above-mentioned action needs one period reaction time usually.In reaction time, the intrinsic brilliance of pixel can be less than theoretical brightness at this section.The difference of this section intrinsic brilliance and theoretical brightness can be represented with the negative luminance difference block 402 that Fig. 4 B bend indicates.Be in method and the traditional driving method difference of overdriving disclosed in this invention, the method of overdriving proposed by the invention just is not used to accelerate the reaction speed of pixel, make the display brightness of pixel can earlier reach theoretical brightness, more be to make pixel in a certain period display brightness in addition can be greater than theoretical brightness.Shown in Fig. 4 B, when display frame f4 and f5, the overdrive voltage value the when numerical value of the overdrive voltage of input pixel is carried out driving method greater than tradition.So, then when display frame f6, the actual displayed brightness (B3) of pixel can be greater than the brightness (B2) of required demonstration in theory.At the same time, the input voltage of pixel changes the bucking voltage of overdriving (V4) into by overdrive voltage (V3).Owing to overdrive bucking voltage (V4), so the actual displayed brightness meeting of pixel in time and deepening less than overdrive voltage (V3).And, the bucking voltage of overdriving (V4) is not only less than overdrive voltage (V3), even it is also littler than the input voltage (V2) that originally is used to drive pixel in theory, so compare with the conventional ADS driving method, the method of overdriving proposed by the invention, the speed of the actual displayed brightness deepening in time of pixel can be faster than the tradition method of overdriving.When display frame f8, the theoretical value (B2) of display brightness has just been got back in the actual displayed brightness of pixel.
Referring again to Fig. 4 B, the variation of more satisfactory situation pixel intensity (being represented by dotted lines) reaches the in fact variation of pixel intensity (representing with solid line) as can be known, the difference of intrinsic brilliance and theoretical brightness can be divided into negative luminance difference block 402 and positive luminance difference district condition 404 two parts, indicates with oblique line respectively.Wherein, be to represent the actual displayed brightness of pixel this moment in negative luma blocks less than the brightness of pixel in theory, positive luma blocks 404 is then represented the theoretical value of the actual displayed brightness of pixel this moment greater than pixel intensity.Because the physiological property of people's visual system, the brightness that human eye is experienced are the summation that vision area (visual field) brightness changes in one period of short duration reaction time, also be in the vision area brightness to the integrated value in of short duration reaction time.The present invention is by accelerating the renewal frequency of display frame, and the speed of renewal that makes display frame is greater than reaction time of human eye.And cooperate the new method of overdriving proposed by the invention, make that the intrinsic brilliance of pixel can be greater than theoretical brightness.Come the negative luminance difference block 402 of compensation pixel intrinsic brilliance by the pixel intrinsic brilliance greater than the positive luminance difference block 404 of theoretical brightness less than theoretical brightness.When the area of the area of positive luminance difference block 404 and negative luminance difference block 402 near in addition when identical, when then human eye can't be experienced pixel voltage and changes, the virtual voltage of pixel was different with desired voltage.So the method for overdriving proposed by the invention, its effect is obviously good than known driving method.Human eye can not experienced the unfavorable characteristic that liquid crystal molecule changes the liquid crystal panel that reaction time of state causes.Compare with conventional practice, the present invention can further improve the image display quality of liquid crystal panel.
Please refer to Fig. 5, it is the corresponding relation figure that experiences brightness (brightness) of physics brightness (luminance) with the human eye perception of pixel demonstration.Because the experiencing physics brightness that brightness shows with pixel both be linear corresponding relation of human eye institute perception, so when importing the overdrive voltage of this pixel in correspondence table decision output display frame DO, it might not be that the physics brightness that pixel is shown is identical less than the area of the negative luminance difference block 402 of theoretical brightness with the physics brightness that pixel shows greater than the positive luminance difference block 404 of theoretical brightness in principle.But must consider the physics brightness of pixel demonstration and the corresponding relation of experiencing brightness of human eye perception, decide the size of overdrive voltage among each output display frame DO, make that the situation of change of pixel intensity is identical under situation of change and the ideal state of the pixel intensity that human eye perceived.
Be noted that present embodiment is to be work and the operation principle thereof that example illustrates display frame processing unit 300 proposed by the invention when being transformed into high brightness with pixel voltage by low-light level.When pixel voltage changed low-light level into by high brightness, the operation principle of display frame processing unit 300 did not repeat them here with mentioned above identical.
The disclosed displayed picture treatment method of the above embodiment of the present invention, be shown in the renewal frequency on the liquid crystal panel and cooperate the method for overdriving to improve display frame, not only can accelerate the reaction speed of pixel, more the display brightness by making pixel can further improve the image display quality of liquid crystal panel greater than the gap of theoretical brightness with compensation pixel intrinsic brilliance that reaction speed is caused and ideal state.
Though the present invention with preferred embodiment openly as above; so it is not to be used to limit the present invention, any those of ordinary skill in the art, without departing from the spirit and scope of the present invention; can do some equivalences and change and change, so protection scope of the present invention is as the criterion with claim.
Claims (34)
1. the processing method of a display frame (frame), it is characterized in that, several display frames are to import in order in the display frame processing unit with one first renewal frequency (refresh rate), this display frame processing unit is used to control the renewal frequency that these display frames are shown in a liquid crystal panel, and this displayed picture treatment method comprises the following steps: at least
Import one first input display frame;
Import one second input display frame;
According to this first input display frame and corresponding several output display frames of this second input display frame decision, wherein, this first input display frame is to import this display frame processing unit before this second input display frame; And
These output display frames are exported from this display frame processing unit in order with one second renewal frequency.
2. displayed picture treatment method as claimed in claim 1 is characterized in that the corresponding relation of described output display frame and this first input display frame and this second input display frame is stored in this display frame processing unit in advance.
3. displayed picture treatment method as claimed in claim 1 is characterized in that described second renewal frequency is greater than this first renewal frequency.
4. displayed picture treatment method as claimed in claim 3 is characterized in that the multiple of the size of described second renewal frequency for this first renewal frequency.
5. displayed picture treatment method as claimed in claim 1, it is characterized in that the described second input display frame comprises one second pixel data, this first input picture comprises one first pixel data, this first pixel data is corresponding with this second pixel data, when this second pixel data during greater than this first pixel data, then in these output display frames, at least comprise one and cross output display frame, and this is crossed and exports display frame and have a output pixel data greater than this second pixel data.
6. displayed picture treatment method as claimed in claim 5 is characterized in that this output display frame of described this display frame processing unit of output is crossed output display frame for this.
7. displayed picture treatment method as claimed in claim 5 is characterized in that the shown brightness of this output pixel data of a pixel basis of described display is greater than the shown brightness of this second pixel data of this pixel basis.
8. displayed picture treatment method as claimed in claim 5, it is characterized in that described output display frame comprises that also one compensated output display frame, this compensated output display frame is to export this display frame processing unit after this crosses output display frame, and this compensation is crossed and exported display frame and have a output pixel data less than this second pixel data.
9. displayed picture treatment method as claimed in claim 1, it is characterized in that, when one second pixel data of this second input display frame during less than corresponding one first pixel data of this first input display frame, then these outputs have at least in display frames one to cross output display frame, and this is crossed and exports display frame and have a output pixel data less than this second pixel data.
10. displayed picture treatment method as claimed in claim 9 is characterized in that described this output display frame that first exports this display frame processing unit crosses output display frame for this.
11. displayed picture treatment method as claimed in claim 9 is characterized in that the shown brightness meeting of this output pixel data of a pixel basis of described display is less than the shown brightness of this second pixel data of this pixel basis.
12. displayed picture treatment method as claimed in claim 9, it is characterized in that described output display frame comprises that also one compensated output display frame, this compensated output display frame is to export this display frame processing unit after this crosses output display frame, and this compensation is crossed and exported display frame and have a output pixel data greater than this second pixel data.
13. displayed picture treatment method as claimed in claim 1 is characterized in that described display is a liquid crystal panel.
14. displayed picture treatment method as claimed in claim 1 is characterized in that the corresponding relation of described output display frame and this first input display frame and this second input display frame is determined by the physical characteristic of this liquid crystal panel, the physics brightness of this liquid crystal panel and the corresponding relation of experiencing brightness of human eye perception.
15. a display frame processing unit is used to control several display frames of input one display, it is characterized in that this device comprises at least:
One storage unit is used to receive one first input display frame and one second input display frame, and wherein, this first input display frame and this second input display frame are to import this storage unit in regular turn with one first renewal frequency; And
One output element couples with this storage unit, is used for according to this first input picture and corresponding several output display frames of this second input picture output, and wherein, these output display frames are in regular turn from this output element output with one second renewal frequency.
16. display frame processing unit as claimed in claim 15 is characterized in that described output element also comprises a memory, is used to store the corresponding relation of these output display frames and this first input display frame and this second input display frame.
17. display frame processing unit as claimed in claim 16 is characterized in that described memory is a random access memory.
18. display frame processing unit as claimed in claim 15 is characterized in that described second renewal frequency is greater than this first renewal frequency.
19. display frame processing unit as claimed in claim 18 is characterized in that the multiple of the size of described second renewal frequency for this first renewal frequency.
20. display frame processing unit as claimed in claim 15, one second pixel data that it is characterized in that the described second input display frame is greater than corresponding one first pixel data of this first input display frame, then have at least one to cross output display frame in these output display frames, wherein, this crosses the corresponding output pixel data of output display frame greater than this second pixel data.
21. display frame processing unit as claimed in claim 20 is characterized in that described this output display frame that first exports this display frame processing unit crosses output display frame for this.
22. display frame processing unit as claimed in claim 20 is characterized in that the shown brightness meeting of this output pixel data of a pixel basis of described display is greater than the shown brightness of this second pixel data of this pixel basis.
23. display frame processing unit as claimed in claim 20, it is characterized in that described output display frame comprises that also one compensated output display frame, this compensated output display frame is to export this display frame processing unit after this crosses output display frame, and is somebody's turn to do the corresponding output pixel data of output display frame less than this second pixel data.
24. display frame processing unit as claimed in claim 15, one second pixel data that it is characterized in that the described second input display frame is less than corresponding one first pixel data of this first input display frame, then have at least one to cross output display frame in these output display frames, wherein, this crosses the corresponding output pixel data of output display frame less than this second pixel data.
25. display frame processing unit as claimed in claim 24 is characterized in that described this output display frame that first exports this display frame processing unit crosses output display frame for this.
26. display frame processing unit as claimed in claim 24 is characterized in that the shown brightness meeting of this output pixel data of a pixel basis of described display is less than the shown brightness of this second pixel data of this pixel basis.
27. display frame processing unit as claimed in claim 24, it is characterized in that described output display frame comprises that also one compensated output display frame, this compensated output display frame is to export this display frame processing unit after this crosses output display frame, and is somebody's turn to do the corresponding output pixel data of output display frame greater than this second pixel data.
28. display frame processing unit as claimed in claim 15 is characterized in that described display is a liquid crystal panel.
29. display frame processing unit as claimed in claim 28 is characterized in that the corresponding relation of described output display frame and this first input display frame and this second input display frame is determined by the physical characteristic of this liquid crystal panel, the physics brightness of this liquid crystal panel and the corresponding relation of experiencing brightness of human eye perception.
30. displayed picture treatment method, it is characterized in that, several display frames are to import in order in the display frame processing unit with one first renewal frequency, this display frame processing unit is to be used to control the renewal frequency that these display frames are shown in a liquid crystal panel, and this displayed picture treatment method comprises the following steps: at least
Import one first input display frame;
Import one second input display frame;
According to this first input display frame and should corresponding several output display frames of input display frame decision, wherein, this first input display frame is to import this display frame processing unit before this second input display frame, and the corresponding relation of these output display frames and this first input display frame and this second input display frame is to be stored in advance in this display frame processing unit; And
These output display frames are exported from this display frame processing unit in order with one second renewal frequency, and this second renewal frequency is greater than this first renewal frequency;
Wherein, have at least one to cross output display frame in these output display frames, when one second pixel data of this second input display frame during greater than corresponding one first pixel data of this first input display frame, this crosses the corresponding output pixel data of output display frame greater than this second pixel data, and when this second pixel data of this second input display frame during less than this first pixel data, then this output pixel data is less than this second pixel data.
31. displayed picture treatment method as claimed in claim 30 is characterized in that the multiple of the value of described second renewal frequency for this first renewal frequency.
32. displayed picture treatment method as claimed in claim 30 is characterized in that the corresponding relation of described output display frame and this first input display frame and this second input display frame is determined by the physical characteristic of this liquid crystal panel, the physics brightness of this liquid crystal panel and the corresponding relation of experiencing brightness of human eye perception.
33. displayed picture treatment method as claimed in claim 30, it is characterized in that describedly when this output pixel data during greater than this second pixel data, the shown brightness meeting of this output pixel data value of a pixel basis of this liquid crystal panel is greater than the shown brightness of this second pixel data value of this pixel basis.
34. displayed picture treatment method as claimed in claim 30, it is characterized in that describedly when this output pixel data during less than this second pixel data, the shown brightness meeting of this output pixel data value of this pixel basis is less than the shown brightness of this second pixel data value of this pixel basis.
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|---|---|---|---|
| CN 02127897 CN1232110C (en) | 2002-08-15 | 2002-08-15 | Displayed picture treatment method used on liquid crystal display device |
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| CN 02127897 CN1232110C (en) | 2002-08-15 | 2002-08-15 | Displayed picture treatment method used on liquid crystal display device |
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| CN1476239A true CN1476239A (en) | 2004-02-18 |
| CN1232110C CN1232110C (en) | 2005-12-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543023A (en) * | 2012-01-10 | 2012-07-04 | 硅谷数模半导体（北京）有限公司 | Receiving equipment and method, device and system for controlling video refreshing rate |
| US8723778B2 (en) | 2004-10-04 | 2014-05-13 | Nxp B.V. | Overdrive technique for display drivers |
| CN116580677A (en) * | 2023-07-06 | 2023-08-11 | 惠科股份有限公司 | Display panel, driving method thereof and electronic equipment |
-
2002
- 2002-08-15 CN CN 02127897 patent/CN1232110C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8723778B2 (en) | 2004-10-04 | 2014-05-13 | Nxp B.V. | Overdrive technique for display drivers |
| CN102543023A (en) * | 2012-01-10 | 2012-07-04 | 硅谷数模半导体（北京）有限公司 | Receiving equipment and method, device and system for controlling video refreshing rate |
| CN102543023B (en) * | 2012-01-10 | 2014-04-02 | 硅谷数模半导体（北京）有限公司 | Receiving equipment and method, device and system for controlling video refreshing rate |
| CN116580677A (en) * | 2023-07-06 | 2023-08-11 | 惠科股份有限公司 | Display panel, driving method thereof and electronic equipment |
| CN116580677B (en) * | 2023-07-06 | 2023-09-19 | 惠科股份有限公司 | Display panel, driving method thereof and electronic equipment |
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| Publication number | Publication date |
|---|---|
| CN1232110C (en) | 2005-12-14 |
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