CN110796995B - Processing method of compensation data of display panel and display device - Google Patents
Processing method of compensation data of display panel and display device Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
Abstract
The invention provides a processing method of compensation data of a display panel and a display device, wherein the processing method of the compensation data of the display panel comprises the steps of providing original compensation table data, calculating a gradient value of the original compensation table data according to the original compensation table data, and obtaining a gradient table; processing the gradiometer to obtain a new gradiometer; multiplying the new gradient table by the data of the original compensation table to obtain an original gradient compensation table; processing and operating the gradient original compensation table to obtain a compressed data value; and finally, combining all the compressed data values into a two-dimensional new compensation table data and transmitting the two-dimensional new compensation table data. The processing method disclosed by the invention effectively reduces the loss of useful information in the compensation table, ensures the accuracy of decompressed data, is simple and easy to realize, has a good picture display effect and reduces the production cost.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a method for processing compensation data of a display panel and a display device.
Background
Thin film transistor-liquid crystal displays (TFT-LCDs) have been widely used in the display field, and meanwhile, as TFT-LCD products are developed toward large size and curved surface, higher requirements are also made on the display quality of TFT-LCD products.
In the display quality of the display, one of the main quality defects is called Mura (Mura), and the Mura is mainly reflected in uneven brightness displayed on the display screen during displaying. Moreover, the color spots may also take on a variety of different shapes, such as linear color spots, dot-like color spots. In the prior art, the color unevenness is generated by various reasons, such as low mounting accuracy of the display device, non-uniform interval between pixels, and non-ideal data compression processing. Since the number of pixels in the conventional display screen is large, each pixel corresponds to one compensation data, and the amount of these compensation data is also large, for example, 3840 × 2160 compensation data is available for a 4K display with a resolution. In the existing compensation data compression processing technology, when the compensation data is compressed and stored, the data cannot be completely compressed, more data information can be lost, and meanwhile, the transmission and burning time of the data is longer; when decompressing the data, the decompressed compensation data is inaccurate, the compensation effect of the brightness and the chromatic aberration of the picture is poor, the picture display is not ideal, and the like.
In order to save storage space, in the prior art, compensation data of a display picture is compressed and stored, and is decompressed when being used, however, in the existing compression, the compensation data is lost more, so that the decompressed compensation data is inaccurate, and the compensation effect of brightness and chromaticity is poor.
Disclosure of Invention
The present disclosure provides a processing method of compensation data of a display panel and a display device, which are used for solving the problems that the data processing of a picture is not ideal, the display picture is easy to generate color spots after the data processing is completed, the display picture is not ideal, and the like in the existing data processing technology.
To solve the above technical problem, the technical solution provided by the embodiment of the present disclosure is as follows:
according to a first aspect of the embodiments of the present disclosure, there is provided a method for processing compensation data of a display panel, including the steps of:
s100: providing original compensation table data, and calculating a gradient value of the original compensation table data according to the original compensation table data to obtain a gradient table;
s101: processing the gradient table in the step S100 to obtain a new gradient table;
s102: multiplying the new gradient table in the step S101 by the original compensation table data in the step S100 to obtain an original gradient compensation table;
s103: processing and operating the gradient original compensation table to obtain a compressed data value;
s104: combining all of the compressed data values into two-dimensional new compensation table data.
According to an embodiment of the present disclosure, the method further includes decompressing, where the decompressing includes writing the new compensation table data into a processor in a display module, and decompressing the new compensation table data.
According to an embodiment of the present disclosure, the step S101 further includes: and carrying out attenuation processing on the gradient table by using an attenuation function to obtain an attenuation gradient table.
According to an embodiment of the disclosure, after the attenuation processing is completed, the attenuation gradient table is normalized to obtain the new gradient table.
According to an embodiment of the present disclosure, the attenuation function comprises a gaussian filter function.
According to an embodiment of the present disclosure, the module of the gaussian filter in the gaussian filter function is 5 × 5.
According to an embodiment of the present disclosure, in the step S103, the method for processing and operating the gradient raw compensation table further includes:
s200: dividing the data in the gradient original compensation table in the step S102 into a plurality of data blocks, and performing data accumulation on each data block;
s201: and taking the sum value obtained by accumulating each data block as the compressed data value of the data block.
According to an embodiment of the present disclosure, the step S200 further includes:
expanding four data around each data in the original gradient compensation table by using an extrapolation method to form an expanded original gradient compensation table;
and sequentially dividing the data in the extended gradient original compensation table at intervals of the same quantity into a data block, and performing data accumulation on the data block.
According to an embodiment of the present disclosure, in the step S100, a Sobel operator module calculates a gradient value of the original compensation table data.
According to the second aspect of the present disclosure, a display device is further provided, where the display device includes an operation module, the operation module is disposed in a timing controller chip of the display panel, and when the operation module processes data, the operation module processes the data by the processing method of compensation data of the display panel provided in the embodiment of the present disclosure.
In summary, the beneficial effects of the embodiment of the present disclosure are:
the invention provides a processing method of compensation data of a display panel and a display device, wherein different data processing methods provided in the embodiment of the invention are used for compressing an original compensation table, the processing method of the compensation data of the display panel in the embodiment of the invention can reduce the loss of data detail information in the compensation table, after the compression is completed, the compression result can well reflect the adjustment trend of a data block before the compression to the display brightness and the chromaticity of a liquid crystal display module, and the data after the decompression is also used for correcting the display brightness and the chromaticity of the liquid crystal display module corresponding to regional pixels, so that the difference between the brightness and the chromaticity of all pixels in a display region is reduced, and the display quality is improved.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some of the disclosed embodiments, and that other drawings can be obtained by those skilled in the art without inventive effort.
FIG. 1 is a flow chart illustrating data processing according to an embodiment of the present disclosure;
FIG. 2A is a diagram illustrating a gradient raw compensation table according to an embodiment of the present disclosure;
FIG. 2B is a block unit partition diagram according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a display device according to an embodiment of the disclosure;
FIG. 4A is a diagram of the display effect before Mura compensation;
FIG. 4B is a diagram of the display effect after Mura compensation.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. It is to be understood that the described embodiments are merely illustrative of some, but not all embodiments of the disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any inventive step, are intended to be within the scope of the present disclosure.
In general, when a liquid crystal display device is used, a color spot (Mura) defect phenomenon caused by uneven display brightness of a device exists, and therefore, when a display screen of the display device with the Mura defect displays content, information received by a viewer includes two parts, namely original pixel information and Mura information. Since the Mura information affects the viewing experience of the viewer, the Mura defect is usually suppressed by the Demura method. The objective of the DeMura method is to obtain a compensation coefficient by analyzing the Mura information in the screen, calculate an original compensation table containing compensation information of each pixel, and further suppress and eliminate the Mura information in the display screen, thereby improving the display picture and improving the display effect.
Specifically, the Demura processing method includes calibrating display contents in a screen through standard white field gray scale signals to obtain a position of the screen which is brighter than the brightness of the corresponding display contents of the screen under the standard white field gray scale, performing brightness suppression on the position which is brighter than the corresponding display contents of the screen by combining a Demura compensation coefficient and an original compensation table, performing brightness improvement on the position which is darker than the corresponding display contents of the screen, and enabling the adjusted position to be close to the brightness range of the corresponding display contents of the screen. The Mura defect of the screen under each gray scale is restrained through the processing, so that the display screen can normally display.
As shown in fig. 1, fig. 1 is a flow chart illustrating data processing according to an embodiment of the disclosure. The method for processing the compensation data of the display panel comprises the following steps:
s100: the method comprises the steps of obtaining original compensation table data of each pixel of a display panel, and calculating a gradient value of the original compensation table data according to the original compensation table data to obtain a gradient table.
When data signals are transmitted, original data information needs to be processed. In the embodiment of the present disclosure, the transmitted original data signal is processed first.
Specifically, taking a liquid crystal display module with a resolution of 4K as an example, each original pixel in the 4K liquid crystal display module corresponds to one original compensation table data, that is, N × M pixels correspond to N × M compensation values respectively. And, the arrangement order of each original compensation table data coincides with the arrangement order of each pixel. Therefore, the gradient value of the original compensation table data can be calculated according to the original compensation table data, and the gradient table of the original compensation table data can be drawn according to the gradient value.
In calculating the gradient table of the original compensation table data, the calculation template used is the Sobel operator. The Sobel operator is one of the most important operators in pixel image edge detection, and plays a significant role in the fields of machine learning, digital media, computer vision and other information technologies. Technically, it is a discrete first order difference operator. When the pixels are detected and operated, the sobel operator mainly calculates the transverse gradient value and the longitudinal gradient value of the pixels, and finally obtains the gradient of the pixels.
Wherein, the calculation formula of the gradient of the pixel is as follows:
meanwhile, during calculation, images for detecting the transverse and longitudinal edges of the image need to be obtained firstly, and the formula is as follows:
Gxand GyRespectively, represent the image with the detected transverse and longitudinal edges, and a represents the original image.
After Gx and Gy are obtained, the direction of the gradient needs to be calculated, and the calculation formula is as follows:
and finally, calculating to obtain the gradient value of the original compensation table data and obtain a corresponding gradient table.
S101, performing attenuation processing on the gradiometer to obtain a new gradiometer;
step S100, obtaining a gradient table of original compensation table data, continuing to process the data, taking a liquid crystal display module with 4K resolution as an example, obtaining 3840 multiplied by 2160 data gradient tables after the processing of the step S100, attenuating the data gradient table, wherein the attenuation function is a Gaussian filter function, selecting a template of the Gaussian filter with the size of 5 multiplied by 5, filtering the gradient table, and obtaining a new gradient table of 3840 multiplied by 2160 data after the filtering is finished;
processing continues on this further gradient table obtained: and carrying out normalization processing on the gradient data to obtain a normalized new gradient table.
S102: multiplying the new gradient table by the original compensation table data to obtain a gradient original compensation table;
and continuing to process the new gradient table on the basis of the step S101, and multiplying the new gradient table by the original compensation table data in the step S100 to finally obtain the gradient original compensation table with 3840 × 2160 data.
S103: processing and operating the gradient original compensation table to obtain a compressed data value;
and continuously processing the gradient original compensation table on the basis of the gradient original compensation table.
When the gradient original compensation table is processed, the data in the gradient original compensation table is set to include m × n data, and for each subdata in the gradient original compensation table, the subdata is continuously expanded, for example, the subdata is expanded along the periphery of the subdata, and an expanded gradient original compensation table is formed.
After the extended gradient original compensation table is obtained, sequentially dividing the data in the extended gradient original compensation table into a data block by the same amount at each interval, so as to form a plurality of data blocks, wherein the amount of data in each data block is the same.
Specifically, in the embodiment of the present disclosure, taking an example of dividing adjacent 8 × 8 data into one data block unit, for the original gradient compensation table, the data of the original gradient compensation table is divided into (3840 ÷ 8+1) × (2160 ÷ 8+1) block data blocks, i.e., 481 × 271 blocks.
As shown in fig. 2A and 2B, fig. 2A is a schematic diagram of gradient raw compensation table data in the embodiment of the present disclosure, and fig. 2B is a schematic diagram of data block unit division in the embodiment of the present disclosure. Taking m × n data as an example, only the original data a, a1, a2, a3... ann is included in the gradient original compensation table 2. Dividing by using an extrapolation method, specifically, extending each data in the gradient original compensation table 2 to four sides to form data d1, d2, d3, d4, as shown in fig. 2B, so that the original data are extended to finally form the extended gradient original compensation table 20.
The data division in the extended gradient raw compensation table 20 is continued, for example, by dividing 8 data per interval as a data block unit 21, as shown in fig. 2B, or by dividing another number of data as a data block. The final expansion of the original compensation table of gradients forms a plurality of data blocks containing the same amount of data.
Preferably, in the embodiment of the present disclosure, 3840 × 2160 data are taken as an example. According to the division mode, the gradient original compensation table of 3840 × 2160 data is expanded to four data by an extrapolation method, and the four data are expanded to an expanded gradient original compensation table of 3840 × 2160 data; and dividing every 8 × 8 data into one data block in sequence.
After the division is finished, data accumulation is carried out on each data block, and the sum value calculated after the data accumulation is used as the compressed data value of the data block. To this end, a compressed data value is obtained.
S104: combining all of the compressed data values into two-dimensional new compensation table data.
The compressed data value is obtained in step S103, and then the compressed data value is processed to be transmitted. Specifically, the method comprises the following steps:
and combining all the compressed data values according to the sequence of the data blocks to form two-dimensional compensation table data to obtain new compensation table data, and finally transmitting the new compensation table data values.
And meanwhile, after the data is transmitted, the data needs to be decompressed, and when the data is decompressed, the new compensation table data is written into a processor in the display module and is decompressed.
Specifically, the processor writes the compensation table data into Flash of the liquid crystal display module, and decompresses the compensation table data in the liquid crystal display module through a chip such as a Novatek chip.
Further, as shown in fig. 3, fig. 3 is a schematic view of the display device provided in the present disclosure, the display device 200 includes an operation module 201, the operation module 201 may be disposed in a Timing Controller (TCON) chip of the display panel, and the operation module 201 completes processing of data such as compression and decompression, and the operation module 201 processes data according to the processing method of compensation data of the display panel provided in the present disclosure when processing pixel data.
As shown in fig. 4A and 4B, fig. 4A is a diagram of the display screen effect before Mura compensation, and fig. 4B is a diagram of the display screen effect after Mura compensation. After the pixel data are processed by the data processing method provided by the embodiment of the disclosure, the image display effect is improved, the loss of detail pixel information in the compensation table is reduced, and the compression result can well reflect the adjustment trend of the data block before compression to the display brightness and the chromaticity of the liquid crystal display module. Meanwhile, the decompressed data can better correct the display brightness and the chromaticity of the liquid crystal display module corresponding to the pixels in the area, the sum of the brightness and the chromaticity difference of all the pixels in the area is very small, the brightness and the chromaticity difference of each area of the picture are small, and the accuracy of the decompressed data is ensured. The compression method is simple and easy to realize, reduces the storage space occupied by the compensation table, and has good picture display quality effect. Finally, the production cost is reduced.
The above detailed description is provided for the processing method of compensation data of the display panel and the display device, and the description of the above embodiments is only used to help understanding the technical solution and the core idea of the present disclosure; those of ordinary skill in the art will understand that: it is to be understood that modifications may be made to the arrangements described in the embodiments above, and such modifications or alterations may be made without departing from the spirit of the respective arrangements of the embodiments of the present disclosure.
Claims (8)
1. A processing method of compensation data of a display panel is characterized by comprising the following steps:
s100: acquiring original compensation table data of each pixel of a display panel, and calculating a gradient value of the original compensation table data according to the original compensation table data to obtain a gradient table;
s101: carrying out attenuation processing on the gradiometer to obtain a new gradiometer;
s102: multiplying the new gradient table by the original compensation table data to obtain a gradient original compensation table;
s103: processing and operating the gradient original compensation table to obtain a compressed data value;
the processing and operation method of the gradient original compensation table comprises the following steps of;
s200: dividing data in the gradient original compensation table into a plurality of data blocks, and performing data accumulation on each data block; the step S200 includes:
expanding four data around each data in the original gradient compensation table by using an extrapolation method to form an expanded original gradient compensation table;
dividing the data in the extended gradient original compensation table into a data block in sequence at intervals of the same quantity, and performing data accumulation on the data block;
s201: taking the sum value obtained by accumulating each data block as the compressed data value of the data block;
s104: combining all of the compressed data values into two-dimensional new compensation table data.
2. The method for processing the compensation data of the display panel according to claim 1, further comprising a decompression method, wherein the decompression method comprises writing the new compensation table data into a processor in the display module and decompressing the new compensation table data.
3. The method for processing compensation data of a display panel according to claim 1, wherein the step S101 comprises: and carrying out attenuation processing on the gradient table by using an attenuation function to obtain a new attenuation gradient table.
4. The method for processing compensation data of a display panel according to claim 3, wherein the step S101 further comprises: and after the attenuation treatment is finished, carrying out normalization treatment on the attenuation gradient table to obtain the new gradient table.
5. The method of claim 3, wherein the attenuation function comprises a Gaussian filter function.
6. The method as claimed in claim 5, wherein the gaussian filter of the gaussian filter function has a module of 5 x 5.
7. The method as claimed in claim 1, wherein in step S100, the Sobel operator module calculates gradient values of the original compensation table data.
8. A display device, comprising an operation module, wherein the operation module is disposed in a timing controller chip of the display panel, and the operation module processes data by the processing method of compensation data of the display panel according to any one of claims 1 to 7.
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| CN113595556B (en) * | 2021-07-30 | 2023-10-17 | 深圳市华星光电半导体显示技术有限公司 | Compensation data compression storage method and device, electronic equipment and storage medium |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8610654B2 (en) * | 2008-07-18 | 2013-12-17 | Sharp Laboratories Of America, Inc. | Correction of visible mura distortions in displays using filtered mura reduction and backlight control |
| CN104917534A (en) * | 2015-06-30 | 2015-09-16 | 京东方科技集团股份有限公司 | Method and device for compressing and decompressing data information, method and device for driving compensation and display device |
| CN106097954A (en) * | 2016-07-21 | 2016-11-09 | 武汉精测电子技术股份有限公司 | A kind of method and system repairing plane display module Mura defect |
| CN106125367A (en) * | 2016-08-26 | 2016-11-16 | 深圳市华星光电技术有限公司 | A kind of method and device detecting Mura offset data exception |
| CN106339196A (en) * | 2016-08-31 | 2017-01-18 | 深圳市华星光电技术有限公司 | Data compression and decompression method of DeMura table and Mura compensation method |
| CN106816143A (en) * | 2016-12-30 | 2017-06-09 | 上海天马有机发光显示技术有限公司 | Display panel gamut conversion method, device, system, display panel and display device |
| CN107240384A (en) * | 2017-08-11 | 2017-10-10 | 芯颖科技有限公司 | display brightness compensation method and device |
| CN109166511A (en) * | 2018-09-03 | 2019-01-08 | 深圳市华星光电技术有限公司 | Display device compensates table compression method |
| CN109324778A (en) * | 2018-12-04 | 2019-02-12 | 深圳市华星光电半导体显示技术有限公司 | Compensate table compression method |
| CN109672451A (en) * | 2018-12-24 | 2019-04-23 | 哈尔滨工业大学（深圳） | Demura data compression method, mura compensation method and device |
| CN110176210A (en) * | 2018-07-27 | 2019-08-27 | 京东方科技集团股份有限公司 | Display driving, compression/decompression method and device, display device, storage medium |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101127829B1 (en) * | 2005-12-07 | 2012-03-20 | 엘지디스플레이 주식회사 | Flat Display Panel, Manufacturing Method thereof, Manufacturing Apparatus thereof, Picture Quality Controlling Apparatus thereof and Picture Quality Controlling Method thereof |
| US8780097B2 (en) * | 2011-10-20 | 2014-07-15 | Sharp Laboratories Of America, Inc. | Newton ring mura detection system |
| CN103985356B (en) * | 2014-05-26 | 2016-06-15 | 合肥工业大学 | The method of a kind of OLED ash rank loss compensation |
| TWI540566B (en) * | 2014-12-09 | 2016-07-01 | 緯創資通股份有限公司 | Display and method and system for compensating brightness or color of display |
| CN107408367B (en) * | 2015-03-20 | 2020-08-07 | 华为技术有限公司 | Method, device and system for correcting unevenness of display screen |
| US10031614B2 (en) * | 2015-07-02 | 2018-07-24 | Innolux Corporation | Touch display panel and driving method thereof |
| KR102393724B1 (en) * | 2015-08-31 | 2022-05-04 | 엘지디스플레이 주식회사 | Display device, method of detecting and compensating a mura thereof |
| CN105160682B (en) * | 2015-09-11 | 2018-07-03 | 四川华雁信息产业股份有限公司 | Method for detecting image edge and device |
| CN107274834B (en) * | 2017-08-08 | 2019-09-24 | 深圳市华星光电半导体显示技术有限公司 | A kind of AMOLED display panel luminance compensation method and device |
-
2019
- 2019-11-28 CN CN201911186491.2A patent/CN110796995B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8610654B2 (en) * | 2008-07-18 | 2013-12-17 | Sharp Laboratories Of America, Inc. | Correction of visible mura distortions in displays using filtered mura reduction and backlight control |
| CN104917534A (en) * | 2015-06-30 | 2015-09-16 | 京东方科技集团股份有限公司 | Method and device for compressing and decompressing data information, method and device for driving compensation and display device |
| CN106097954A (en) * | 2016-07-21 | 2016-11-09 | 武汉精测电子技术股份有限公司 | A kind of method and system repairing plane display module Mura defect |
| CN106125367A (en) * | 2016-08-26 | 2016-11-16 | 深圳市华星光电技术有限公司 | A kind of method and device detecting Mura offset data exception |
| CN106339196A (en) * | 2016-08-31 | 2017-01-18 | 深圳市华星光电技术有限公司 | Data compression and decompression method of DeMura table and Mura compensation method |
| CN106816143A (en) * | 2016-12-30 | 2017-06-09 | 上海天马有机发光显示技术有限公司 | Display panel gamut conversion method, device, system, display panel and display device |
| CN107240384A (en) * | 2017-08-11 | 2017-10-10 | 芯颖科技有限公司 | display brightness compensation method and device |
| CN110176210A (en) * | 2018-07-27 | 2019-08-27 | 京东方科技集团股份有限公司 | Display driving, compression/decompression method and device, display device, storage medium |
| CN109166511A (en) * | 2018-09-03 | 2019-01-08 | 深圳市华星光电技术有限公司 | Display device compensates table compression method |
| CN109324778A (en) * | 2018-12-04 | 2019-02-12 | 深圳市华星光电半导体显示技术有限公司 | Compensate table compression method |
| CN109672451A (en) * | 2018-12-24 | 2019-04-23 | 哈尔滨工业大学（深圳） | Demura data compression method, mura compensation method and device |
Non-Patent Citations (1)
| Title |
|---|
| 基于双线性插值最值滤波的Mura改善方法;梁志虎;《光子学报》;20160825;1-6 * |
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| CN110796995A (en) | 2020-02-14 |
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