CN102779491A - Method and device for compensating field sequential backlight color - Google Patents
Method and device for compensating field sequential backlight color Download PDFInfo
- Publication number
- CN102779491A CN102779491A CN2011101443323A CN201110144332A CN102779491A CN 102779491 A CN102779491 A CN 102779491A CN 2011101443323 A CN2011101443323 A CN 2011101443323A CN 201110144332 A CN201110144332 A CN 201110144332A CN 102779491 A CN102779491 A CN 102779491A
- Authority
- CN
- China
- Prior art keywords
- backlight
- compensation
- time
- screen picture
- preface
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000009826 distribution Methods 0.000 claims abstract description 10
- 230000006870 function Effects 0.000 claims description 31
- 239000004973 liquid crystal related substance Substances 0.000 claims description 25
- 238000005286 illumination Methods 0.000 claims description 23
- 238000000354 decomposition reaction Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000003086 colorant Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 239000010981 turquoise Substances 0.000 description 1
Images
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention discloses a method and a device for compensating a field sequential backlight color. The method and the device are used for solving the technical problems that the present common field sequential backlight technology is poor in color expressive force and inferior in color saturation. According to a twice compensating technology adopted by the invention, a first compensating calculation for an image signal is utilized to decompose an image signal into a screen image and a backlight luminance distribution, and then the screen image is compared with an original image, and finally the screen image is compensated for the second time. After the twice compensation is performed, the color saturation of the field sequential backlight technology is increased, the color expressive force is improved and the display effect of a frame is promoted.
Description
Technical field
The present invention relates to Backlight For Liquid Crystal Display Panels, relate in particular to the color compensating method and the device of a preface backlight.
Background technology
The field preface principle of work of regular display is through control backlight RGB tri coloured lantern; Light successively according to time sequencing, because the persistence of vision effect of human eye realizes temporal colour mixture; Fig. 1 is a kind of the preface backlit display principle of work of 60Hz for display effect; Wherein mark zone 1. is the deflection period of pixel liquid crystal molecule, and mark white space 2. is the pixel liquid crystal molecule retention time, and mark zone 3. is that homochromy backlight LED is lighted the time.Need to prove response time of deflection period and pixel of liquid crystal pixel and inequality; This is because images displayed is different, and liquid crystal molecule needs the angle of deflection just different, and completion specifies the time of deflection angle just different; Deflection control color through liquid crystal realizes that final picture shows.
Fig. 2 is the image displaying principle figure of common preface backlight technology; Wherein the signal of screen picture comes from the figure image source; Common figure image source has TV, computer and DVD etc.; The figure image source shows on screen with the form of a frame one frame picture, and Here it is screen picture shows through continual frame picture just to form the various images of playing on the display device that spectators see.Need to prove that any image can show with red-green-blue, screen picture also embodies through rgb pixels.Any one image can be used three representation in components of RGB; Through Circuits System it being presented on the screen is exactly the anglec of rotation difference by the RGB three subpixels liquid crystal of all pixels on the screen, and three color components are embodied according to certain ratio.In common the preface backlight design, as long as redgreenblue LED lamp is opened with equal proportion, the color relation that backlight shows is white.If promptly the opening degree of red light, green light and blue lamp all is 100%, backlight is a white, and RGB lamp opening degree all is 50% o'clock, and backlight also be white, unique luminance difference that is not both.
In common preface was backlight, the heterochromia of display image was that the liquid crystal anglec of rotation through RGB three subpixels of control screen pixels realizes that the liquid crystal anglec of rotation is realized by voltage signal control.The voltage signal of sub-pixel image is to be confirmed by the RGB component value of image corresponding pixel points essentially.For instance, common preface is backlight as follows: if any any the GTG value of image is RGB (r1, g1; B1), then on the screen pixel gray level value RGB of the corresponding point of display image also be (r1, g1; B1), backlight is all opened by 100% brightness according to the RGB lamp in proper order.
The advantage of preface backlight technology is to remove color filter film, conservation cost significantly, and it is original 1/3rd that pixel size is become, and significantly improves resolution.But the color saturation of existing preface backlight technology and expressive force and regular display also have very large deviation, can not reach to satisfy the degree that ordinary consumer requires.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide compensation method of a kind of preface backlight color and device, and it is not good to be used for solving existing common preface backlight technology color representation power, the technical matters of color saturation difference.
For achieving the above object, technical scheme of the present invention is achieved in that
Based on the embodiment of the invention, the present invention provides the compensation method of a kind of preface backlight color, and this method comprises:
According to penalty function or compensation relationship table original image is decomposed into screen picture and two parts of backlight illumination distribution, distributes the said original image of common demonstration by screen picture after the compensation and backlight illumination.
Further, the compensation method of said preface backlight color also comprises the steps:
To decompose the screen picture and the original image that obtain according to penalty function or compensation relationship table and compare, to can not with the backlight color one to one screen picture partly carry out compensation second time, obtain the screen picture after compensating the second time.
Further, before carrying out said decomposition, also comprise the following step of setting up said penalty function or compensation relationship table:
S1, measure the RGB backlight and all open by a preface, the chromaticity coordinates of the display image during the corresponding screen picture of the various GTG values combinations of liquid crystal display red green and blue with 100% brightness;
S2, measure under the liquid crystal display show white screen picture state, when the chromaticity coordinates of display image is the chromaticity coordinates of the display image that obtained of step S1, the brightness ratio that corresponding RGB backlight is opened;
The brightness ratio that the RGB backlight is opened among S3, the RGB GTG value of passing through the screen picture that liquid crystal display shows among the chromaticity coordinates associated steps S1 of display image and the step S2, thus set up said compensation relationship table or set up said penalty function through the matched curve method.
Further, a preface backlight color compensation method also comprises:
Screen picture after the said compensation second time is exported to time schedule controller, the said backlight illumination that decomposes the back acquisition is distributed export to a preface backlight control circuit.
Further, a preface backlight color compensation method is applied in straight-down negative and the side-light type field preface backlight display system.
Based on the embodiment of the invention, the present invention also provides a kind of preface backlight color compensation system, comprising:
Memory module is used to store penalty function or compensation relationship table;
Compensating module is decomposed into screen picture and two parts of backlight illumination distribution according to penalty function or compensation relationship table with original image for the first time, distributes the said original image of common demonstration by screen picture after the compensation and backlight illumination.
Further, said preface backlight color compensation system also comprises:
For the second time compensating module is used for said screen picture and original image through compensation for the first time compared, to can not with the backlight color one to one screen picture partly carry out compensation second time, the screen picture of output after compensating the second time.
Further; Said first time, compensating module received original image signal from machine core board; Original image is carried out the compensation first time, and will export to compensating module for the second time, will distribute through the backlight illumination of compensation for the first time and export to a preface backlight control circuit through the screen picture of compensation for the first time; Compensating module will be exported to time schedule controller through the screen picture of compensation for the second time for the second time.
Further, said field preface backlight color compensation system and machine core board and/or time schedule controller and/or a preface backlight control circuit are integrated on the circuit board; Or be integrated on the independent circuit board.
Further, said preface backlight color compensation system is applied in straight-down negative and the side-light type field preface backlight display system.
The present invention carries out the compensation of two aspects to backlight and screen picture respectively; Promote a saturated purpose of color of preface display frame backlight thereby reach; Preferably the present invention adopts second compensation technology, through the first time compensation operation be that screen picture distributes with backlight illumination with the source images signal decomposition, and then pass through comparison to screen picture and source images; Screen picture is carried out second compensation; After twice compensation, further improved the color saturation of a preface backlight technology, improved the display effect of picture.
Description of drawings
Fig. 1 is the fundamental diagram of existing preface backlight;
Fig. 2 is the displaying principle figure based on existing preface backlight;
The process flow diagram of the field preface backlight color compensation method that Fig. 3 provides for the embodiment of the invention;
The schematic diagram of double compensation field preface backlight technology display image is adopted in the field preface backlight color compensation method that Fig. 4 provides for the embodiment of the invention;
Fig. 5 is existing preface backlight circuit theory diagrams;
Fig. 6 is the field preface backlight circuit theory diagrams that comprise provided by the invention preface backlight color compensation system provided by the invention.
Embodiment
Basic thought of the present invention is: through the compensation of screen picture two aspects that show to the brightness of single LED lamp of backlight (comprising red light, green light, blue lamp) with to liquid crystal display; Reach and promote a purpose of the color saturation of preface backlight technology; Thereby it is not good to solve a color representation power of preface technology, the problem of color saturation difference.
For making the object of the invention, technical scheme and advantage clearer, below lift embodiment and with reference to accompanying drawing, to further explain of the present invention.
Fig. 3 is provided by the invention preface backlight color compensation method realization flow figure, and this method promotes a color saturation of preface backlight technology through the mode that adopts twice compensation, and concrete steps are following:
Step 301, through measuring and data fitting is set up and is used for the penalty function y=f (x) or the compensation relationship table of compensation operation for the first time;
Said penalty function or compensation relationship table are used to be reflected under the situation that the chromaticity coordinates of display image confirms; Corresponding relation between the brightness ratio that backlight RGB backlight is opened under the GTG value of the RGB sub-pixel of the screen picture that liquid crystal display shows and the specific liquid crystal display response frequency, the method for setting up penalty function and compensation relationship table is specially:
Step S1, measurement are according to existing common preface principle of work backlight, and the RGB backlight is all opened with 100% brightness in order, the chromaticity coordinates of the display image when the various GTG values of liquid crystal display red green and blue make up corresponding screen picture;
Step S2, measurement liquid crystal display show white screen picture are under the white picture state; When the chromaticity coordinates of display image is the chromaticity coordinates of the display image that obtained of step S1; Corresponding RGB backlight is opened brightness ratio, i.e. RGB backlight current corresponding dutycycle;
The electric current dutycycle of said RGB backlight has determined the brightness ratio, and then has determined chromaticity coordinates;
The brightness ratio that the RGB backlight is opened among step S3, the RGB GTG value of passing through the screen picture that liquid crystal display shows among the chromaticity coordinates associated steps S1 of display image and the step S2, thus set up said compensation relationship table or set up said penalty function through the matched curve method.
In theory, the various GTG value combinations of RGB have 256*256*256 kind combined situation, and the measurement data amount is bigger; So in practical application; Can a measure portion data set up penalty function, perhaps set up the compensation relationship table, to reduce the number of times of measuring through methods such as data interpolatings.No matter set up penalty function or set up the compensation relationship table, all only need to measure once, just can use in the calculating afterwards.
Below illustrate the process of setting up of penalty function and compensation relationship table:
Set up the offset of RGB GTG combination (255,0,0) in penalty function initial value or the compensation relationship table; When measurement field preface backlight red, green and blue LED lamp was all opened with 100% brightness in order, screen picture RGB GTG value was (255,0; 0) chromaticity coordinates the time is (0.68,0.23); When measuring screen picture then and be white picture, when the chromaticity coordinates of display image was (0.68,0.23), it was (100%, 0%, 0%) that backlight RGB lamp is opened the brightness ratio; Accomplished the measurement of a value in a penalty function initial value or the compensation relationship table through top measurement, promptly when the chromaticity coordinates of display image is (0.68,0.23); The brightness ratio (100% of the corresponding backlight RGB lamp of RGB GTG value (255,0,0) of screen picture; 0%, 0%) after, a plurality of respective value is accomplished; Can find fitting function through methods such as fitting of a polynomials, perhaps between a plurality of respective value, carry out the method for interpolation, set up penalty function or compensation relationship table.
Behind the penalty function of accomplishing or compensation relationship table, it is stored in the chip of control circuit, is used for the original image of input is compensated, the result after will compensating then passes to backlight and liquid crystal display simultaneously.
Step 302, original image is carried out the compensation first time, obtain two parts of screen picture and backlight illumination distribution through compensation for the first time through the single compensation computing according to penalty function or compensation relationship table;
In this step, original image is decomposed into screen picture and backlight illumination two parts that distribute, shows original image jointly through two-part compensation that screen picture and backlight illumination are distributed according to penalty function or compensation relationship table.Said step of decomposition for the first time i.e. the process of compensation, respectively screen picture and backlight is compensated, and compares existing common preface backlight technology concerning the mode that screen picture compensates, can further promote the color saturation of display frame.Screen image signal is exported to liquid crystal display through time schedule controller; The backlight illumination distribution is meant the Luminance Distribution of the red, green and blue LED backlight of screen picture corresponding region.
Further; Might can not be corresponding one by one through the screen picture of compensation for the first time with zones of different backlight color; Therefore need carry out second compensation to screen picture through compensation for the first time; With the color saturation of further lifting display frame, the method such as the step 303 of carrying out compensation for the second time are said.
Step 303, screen picture and the original image that will pass through compensation for the first time compare, to can not with the backlight color one to one screen picture partly carry out compensation second time, obtain the screen picture after compensating the second time;
The said compensation second time can be adopted one or more in the image processing method: mean value method, maximum value process, Fourier transform method, wavelet analysis method or the like.
Step 304, the screen picture after twice compensation is exported to time schedule controller, time schedule controller output screen picture signal is given liquid crystal display; A preface backlight control circuit is exported in backlight illumination distribution behind single compensation, and a preface backlight control circuit is exported control signal again and is given driving circuit, by the driving circuit drives backlight; Obtain final display image after the stack backlight that screen picture that liquid crystal display shows and backlight produce.
Fig. 4 is the displaying principle figure that double compensation field preface backlight technology display image is adopted in the compensation method of provided by the invention preface backlight color; Can find out by figure; Original image is made up of the RGB component; Through method and apparatus provided by the invention original image is carried out twice compensation, obtain to distribute through screen picture after twice compensation and the backlight illumination behind single compensation, said screen picture is made up of pixel; Each pixel is made up of RGB three subpixels again, and the compensation of screen picture is promptly adjusted each subpixels of each pixel of forming screen picture; Said field preface is backlight to be made up of with a preface backlight control circuit the LED lamp of three kinds of colors of RGB and the driving circuit of LED lamp; Preface backlight control circuit is lighted three kinds of color LED of RGB according to RGB or red bluish-green or blue red green or bluish-green red or green red indigo plant or turquoise red order time and duration signal; Pass to driving circuit, driving circuit is lighted the LED lamp; Said display image is distributed by screen picture and backlight illumination and forms after stack is exported.
Based on preface backlight color provided by the invention compensation method, the present invention also provides a kind of preface backlight color compensation system, and this device comprises: relationship storage module, compensating module and compensating module for the second time for the first time;
Relationship storage module is used to store penalty function or compensation relationship table;
Compensating module is used for according to penalty function or compensation relationship table original image being carried out compensating the first time for the first time, obtains screen picture and two parts of backlight illumination distribution through compensation for the first time through compensation operation;
For the second time compensating module is used for said screen picture and original image through compensation for the first time compared, to can not with the backlight color one to one picture part carry out compensation second time, the screen picture of output after compensating the second time.
Said first time, compensating module received original image signal from machine core board, will export to compensating module for the second time through the screen picture of compensation for the first time, and will distribute through the backlight illumination of compensation for the first time and export to a preface backlight control circuit; Compensating module will be exported to time schedule controller through the screen picture of compensation for the second time for the second time.
Field preface backlight technology has two kinds of backlights, and a kind of is straight-down negative, and another kind is a side-light type, and above-mentioned two kinds of field preface backlight technology method and apparatus provided by the invention all are suitable for, and are identical for the compensation principle of two kinds of backlights.
Below be example with the direct-light-type backlight, the circuit theory of in the display system that adopts direct-light-type backlight, using provided by the invention preface backlight color compensation system is described.Fig. 5 is the displaying principle figure of common preface backlight technology, and Fig. 6 is the field preface backlight technology displaying principle figure that comprises provided by the invention preface backlight color compensation system provided by the invention.Through relatively finding; In the display system provided by the invention; Between machine core board, time schedule controller, a preface backlight control circuit, increased provided by the invention preface backlight color compensation system; This device will be exported to time schedule controller through the screen image signal of compensation, will distribute through the field of compensation preface backlight illumination to export to a preface backlight control circuit.
Preface backlight color compensation system provided by the invention can be integrated on the circuit board with machine core board and/or time schedule controller and/or a preface backlight control circuit, also circuit board manufacturing separately.
The present invention can select the GTG value interval of step-length 5 as a metrophia compensation relation when setting up compensation relationship table or penalty function, select 0,5,10,15,20; 25 ..., 255 as basic data, promptly selects r=(0,5,10; 15,20 ..., 255), g=(0,5; 10,15,20 ..., 255), b=(0; 5,10,15,20 ..., 255); Brightness value when measuring corresponding backlight and opening, three kinds of colors need data measured to be the 51*51*51 group altogether so, and 153 data are accomplished the foundation of penalty function table through method of interpolation, the penalty function table are stored in provided by the invention the preface backlight color compensation system in advance the application of when compensating calculating, tabling look-up.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (10)
1. field preface backlight color compensation method is characterized in that this method comprises:
According to penalty function or compensation relationship table original image is decomposed into screen picture and two parts of backlight illumination distribution, distributes the said original image of common demonstration by screen picture after the compensation and backlight illumination.
2. method according to claim 1 is characterized in that, said method also comprises:
To decompose the screen picture and the original image that obtain according to penalty function or compensation relationship table and compare, to can not with the backlight color one to one screen picture partly carry out compensation second time, obtain the screen picture after compensating the second time.
3. method according to claim 1 and 2 is characterized in that, before carrying out said decomposition, also comprises the following step of setting up said penalty function or compensation relationship table:
S1, measure the RGB backlight and all open by a preface, the chromaticity coordinates of the display image during the corresponding screen picture of the various GTG values combinations of liquid crystal display red green and blue with 100% brightness;
S2, measure under the liquid crystal display show white screen picture state, when the chromaticity coordinates of display image is the chromaticity coordinates of the display image that obtained of step S1, the brightness ratio that corresponding RGB backlight is opened;
The brightness ratio that the RGB backlight is opened among S3, the RGB GTG value of passing through the screen picture that liquid crystal display shows among the chromaticity coordinates associated steps S1 of display image and the step S2, thus set up said compensation relationship table or set up said penalty function through the matched curve method.
4. method according to claim 2 is characterized in that, said method also comprises:
Screen picture after the said compensation second time is exported to time schedule controller, the said backlight illumination that decomposes the back acquisition is distributed export to a preface backlight control circuit.
5. method according to claim 1 is characterized in that, said method is applied in straight-down negative and the side-light type field preface backlight display system.
6. field preface backlight color compensation system is characterized in that this device comprises:
Memory module is used to store penalty function or compensation relationship table;
Compensating module is decomposed into screen picture and two parts of backlight illumination distribution according to penalty function or compensation relationship table with original image for the first time, distributes the said original image of common demonstration by screen picture after the compensation and backlight illumination.
7. device according to claim 6 is characterized in that, said device also comprises:
For the second time compensating module is used for said screen picture and original image through compensation for the first time compared, to can not with the backlight color one to one screen picture partly carry out compensation second time, the screen picture of output after compensating the second time.
8. device according to claim 7 is characterized in that,
Said first time, compensating module received original image signal from machine core board; Original image is carried out the compensation first time; And will export to compensating module for the second time through the screen picture of compensation for the first time, will distribute through the backlight illumination of compensation for the first time and export to a preface backlight control circuit;
Compensating module will be exported to time schedule controller through the screen picture of compensation for the second time for the second time.
9. device according to claim 6 is characterized in that, said device and machine core board and/or time schedule controller and/or a preface backlight control circuit are integrated on the circuit board; Or be integrated on the independent circuit board.
10. device according to claim 6 is characterized in that, said device is applied in straight-down negative and the side-light type field preface backlight display system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110144332.3A CN102779491B (en) | 2011-05-31 | 2011-05-31 | Method and device for compensating field sequential backlight color |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110144332.3A CN102779491B (en) | 2011-05-31 | 2011-05-31 | Method and device for compensating field sequential backlight color |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102779491A true CN102779491A (en) | 2012-11-14 |
| CN102779491B CN102779491B (en) | 2014-10-22 |
Family
ID=47124394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110144332.3A Expired - Fee Related CN102779491B (en) | 2011-05-31 | 2011-05-31 | Method and device for compensating field sequential backlight color |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102779491B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105357505A (en) * | 2015-11-11 | 2016-02-24 | 广东威创视讯科技股份有限公司 | Color compensation method and system for digital light processing chip, and signal processing chip |
| CN105529002A (en) * | 2014-09-30 | 2016-04-27 | 青岛海信信芯科技有限公司 | Method and device for determining luminance compensation coefficients |
| CN106373517A (en) * | 2016-10-31 | 2017-02-01 | 北京集创北方科技股份有限公司 | Display and display method |
| CN108885857A (en) * | 2016-02-27 | 2018-11-23 | 复秀公司 | Keep the spectrum remodeling procedure and equipment of color |
| CN109935206A (en) * | 2019-04-15 | 2019-06-25 | 京东方科技集团股份有限公司 | Display device luminance compensation method, device and equipment neural network based |
| CN110114819A (en) * | 2016-09-30 | 2019-08-09 | 夏普株式会社 | Field sequence type image display device and image display method |
| CN111221486A (en) * | 2018-11-08 | 2020-06-02 | 财团法人工业技术研究院 | Information display system and information display method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101266762A (en) * | 2007-03-16 | 2008-09-17 | Lg.菲利浦Lcd株式会社 | Liquid crystal display |
| CN101763806A (en) * | 2008-12-22 | 2010-06-30 | 索尼株式会社 | Image display device and image display method |
| CN101789221A (en) * | 2010-03-11 | 2010-07-28 | 彩虹集团公司 | Linear correction method of LED dynamic backlight |
| JP4677091B2 (en) * | 2000-11-30 | 2011-04-27 | キヤノン株式会社 | Color image display device |
-
2011
- 2011-05-31 CN CN201110144332.3A patent/CN102779491B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4677091B2 (en) * | 2000-11-30 | 2011-04-27 | キヤノン株式会社 | Color image display device |
| CN101266762A (en) * | 2007-03-16 | 2008-09-17 | Lg.菲利浦Lcd株式会社 | Liquid crystal display |
| CN101763806A (en) * | 2008-12-22 | 2010-06-30 | 索尼株式会社 | Image display device and image display method |
| CN101789221A (en) * | 2010-03-11 | 2010-07-28 | 彩虹集团公司 | Linear correction method of LED dynamic backlight |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529002A (en) * | 2014-09-30 | 2016-04-27 | 青岛海信信芯科技有限公司 | Method and device for determining luminance compensation coefficients |
| CN105529002B (en) * | 2014-09-30 | 2019-05-21 | 青岛海信电器股份有限公司 | A kind of method and device of determining luminance compensation coefficient |
| CN105357505A (en) * | 2015-11-11 | 2016-02-24 | 广东威创视讯科技股份有限公司 | Color compensation method and system for digital light processing chip, and signal processing chip |
| CN105357505B (en) * | 2015-11-11 | 2018-07-10 | 广东威创视讯科技股份有限公司 | Digital optical processor core color compensation method, system and signal processing chip |
| US11182934B2 (en) | 2016-02-27 | 2021-11-23 | Focal Sharp, Inc. | Method and apparatus for color-preserving spectrum reshape |
| CN108885857A (en) * | 2016-02-27 | 2018-11-23 | 复秀公司 | Keep the spectrum remodeling procedure and equipment of color |
| CN108885857B (en) * | 2016-02-27 | 2021-07-16 | 复秀公司 | Color-preserving spectral reshaping method and apparatus |
| CN110114819A (en) * | 2016-09-30 | 2019-08-09 | 夏普株式会社 | Field sequence type image display device and image display method |
| CN106373517B (en) * | 2016-10-31 | 2020-09-04 | 北京集创北方科技股份有限公司 | Display and display method |
| CN106373517A (en) * | 2016-10-31 | 2017-02-01 | 北京集创北方科技股份有限公司 | Display and display method |
| CN111221486A (en) * | 2018-11-08 | 2020-06-02 | 财团法人工业技术研究院 | Information display system and information display method |
| CN111221486B (en) * | 2018-11-08 | 2023-04-07 | 财团法人工业技术研究院 | Information display system and information display method |
| CN109935206A (en) * | 2019-04-15 | 2019-06-25 | 京东方科技集团股份有限公司 | Display device luminance compensation method, device and equipment neural network based |
| CN109935206B (en) * | 2019-04-15 | 2021-08-20 | 京东方科技集团股份有限公司 | Neural network-based display device brightness compensation method, device and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102779491B (en) | 2014-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10802327B2 (en) | Liquid crystal display device and driving method thereof | |
| US8184087B2 (en) | Display method for LCD device with reduced color break-up | |
| CN104145301B (en) | Display device and display packing | |
| CN102063879B (en) | Liquid crystal display with dynamic backlight control and its drive method | |
| US7505016B2 (en) | Apparatus and method for driving liquid crystal display device | |
| TWI479469B (en) | Dynamic color gamut of led backlight | |
| CN102779491B (en) | Method and device for compensating field sequential backlight color | |
| US10825408B2 (en) | Display driving method, device and apparatus | |
| CN103796380B (en) | Liquid crystal indicator and backlight thereof and light-dimming method | |
| CN106782375A (en) | Liquid crystal display device and driving method thereof | |
| US11302272B2 (en) | Display device, and driving method for the display device for reducing power consumption and improving display effect | |
| WO2016106869A1 (en) | Liquid crystal display and driving method therefor | |
| US20160379574A1 (en) | Color Sequential Image Method and System Thereof | |
| CN104332143B (en) | Display device and color conversion method thereof | |
| CN101276564A (en) | Liquid crystal device | |
| US7692624B2 (en) | Liquid crystal display, method for displaying color images, and method for controlling light sources of an LCD panel | |
| CN103198800A (en) | Image display apparatus and method | |
| CN103984136A (en) | Liquid crystal display (LCD) panel and LCD device | |
| CN104851397B (en) | Drive the method for light source module and the display device using this method | |
| CN100437732C (en) | Field sequential liquid crystal display and a driving method thereof | |
| CN104078020A (en) | Liquid-crystal display device, four-color converter and method for converting RGB data into RGBW data | |
| KR101840875B1 (en) | Liquid crystal display device and method for driving the same | |
| CN101859037A (en) | Liquid crystal display (LCD) device | |
| US10068535B2 (en) | Display apparatus and driving method thereof | |
| CN101510397B (en) | Display method for reducing color separation of liquhodid crystal display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |