CN113284461B - Optical compensation method of display panel and storage medium - Google Patents
Optical compensation method of display panel and storage medium Download PDFInfo
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- CN113284461B CN113284461B CN202110598126.3A CN202110598126A CN113284461B CN 113284461 B CN113284461 B CN 113284461B CN 202110598126 A CN202110598126 A CN 202110598126A CN 113284461 B CN113284461 B CN 113284461B
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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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
- G09G2320/06—Adjustment of display parameters
- G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
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- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides an optical compensation method and a storage medium of a display panel, which compress a compensation range of a bright bias display area or a bright bias point by processing optical data on the premise of not influencing the compensation effect and reduce poor excessive compensation caused by a 'yin-yang screen'. The voltage value of a high-brightness area is reduced by adjusting the low gray scale compensation target value, so that the display brightness of an area with overlarge brightness is reduced, the risk that the pixel brightness is 0 is reduced, and the whole display effect is more natural; and the low-gray-scale voltage value is limited, so that abnormal point display abnormity caused by abnormal point overcompensation is prevented.
Description
Technical Field
The invention relates to the technical field of display, in particular to an optical compensation method of a display panel.
Background
An Active-matrix organic light-emitting diode (AMOLED) panel is complex in process, various organic and inorganic layers are stacked, and more film forming devices are involved; due to the difference of process stability, the thickness of the film layer of the whole panel is difficult to be uniform, the characteristics of the thin film transistors are consistent, and after the panel is lightened, each pixel is uneven in brightness and shows more uncontrollable moire fringes (Mura).
For Mura, an external compensation mode is often adopted for elimination, namely, a Demura process. However, because the low gray scale brightness is small, the charging time of the circuit is short, the Mura shape is serious, especially the edge of the panel is limited by the process, the uniformity of the film layer is poor, and the phenomenon of "yin and yang screen" (the difference between brightness and darkness is obvious, as shown in fig. 1) is very easy to occur, resulting in high yield loss. For low gray scale failures, the main group of failures appears as: in the low gray scale or low DBV mode, the panel displays local purple/black, purple dot/black dot, etc. the main reason for such disadvantages is that when Demura compensates in the low brightness mode (gray scale brightness <10), the compensation voltage value of the bright bias area is too large, which is very easy to change the brightness at the pixels of the panel to 0, and there is no brightness. If the pixel R/G/B compensation trends are inconsistent, the panel will have obvious color anomalies (local purple/black) in the low brightness mode; if the pixel points are individual pixel points, the compensated defects are represented as abnormal display such as black points/purple points and the like.
Disclosure of Invention
The invention is used for solving the technical problem that the local display area of the display panel is easy to have abnormal color in a low gray scale or low DBV mode in the prior panel optical compensation technology.
The invention provides an optical compensation method of a display panel, which is applied to the display panel with a DeMura module, wherein the display panel comprises a display area, and the optical compensation method comprises the following steps: acquiring optical data of the DeMura module, wherein the optical data comprises brightness data of each pixel in a display area, and the brightness data is brightness shot in a low gray scale; dividing the display area into a plurality of luminance areas; calculating the ratio x of the brightness area with the maximum brightness to the brightness of the brightness area at the center of the display area, and executing the next step if the ratio is greater than a preset value; calculating brightness compensation data of each brightness area according to the optical data of each brightness area; and performing brightness compensation on each brightness area according to the brightness compensation data.
Further, before the step of acquiring the optical data of the DeMura module, the method further comprises the following steps: the camera shoots an image of the display panel; and the DeMura module processes the image to obtain the optical data.
Further, in the step of acquiring the optical data of the DeMura module, high frequency noise in the luminance data is removed.
Further, in the step of calculating the luminance compensation data for each luminance area according to the optical data, the method specifically includes the following steps: the luminance compensation data y of each luminance area is calculated by using the formula y ═ a × Max, where Max is the luminance of the luminance area with the maximum luminance, a is the compensation gain, a ═ 1-1/x, and 0< a < 1.
Further, the step of performing brightness compensation on each brightness region according to the brightness compensation data includes the following steps: establishing a pixel Gamma curve of each brightness area according to the brightness compensation data of each brightness area; and calculating the compensation voltage value of each pixel according to the pixel Gamma curve.
Further, the step of performing brightness compensation on each brightness region according to the brightness compensation data further includes the following steps: judging whether the compensation voltage value is larger than a threshold value; and if so, replacing the compensation voltage value with the threshold value.
Further, the threshold is (b-Gray)/Gain; wherein Gray is the brightness of a Gray scale; gain is the actual debugging value of the gray scale; b is the minimum brightness value of the register.
Further, after the step of calculating the luminance compensation data for each luminance area according to the optical data for each luminance area, the method further comprises the following steps: and storing the brightness compensation data into a flash memory.
Further, after the step of calculating the compensation voltage value of each pixel according to the pixel Gamma curve, the method further comprises the following steps: and storing the compensation voltage value into a flash memory.
The present invention also provides a storage medium for storing executable program code; the processor executes a computer program corresponding to the executable program code by reading the executable program code to execute the optical compensation method of the display panel.
The optical compensation method for the display panel has the beneficial effects that the optical data are processed, the compensation range of a bright display area or a bright spot is compressed on the premise of not influencing the compensation effect, and the poor excessive compensation caused by the reason of 'yin-yang screen' is reduced. The voltage value of a high-brightness area is reduced by adjusting the low gray scale compensation target value, so that the display brightness of an area with overlarge brightness is reduced, the risk that the pixel brightness is 0 is reduced, and the whole display effect is more natural; and the low gray scale voltage value is limited, so that abnormal point display abnormity caused by abnormal point overcompensation is prevented.
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The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.
FIG. 1 is a schematic diagram of a display panel with a yin-yang screen;
fig. 2 is a flowchart of an optical compensation method for a display panel according to the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 2, the present invention provides an optical compensation method for a display panel, which is applied to a display panel having a DeMura module, where the display panel includes a display area. The compensation mode of the invention is external compensation, and the external compensation can be divided into an optical extraction type and an electrical extraction type according to different data extraction methods. The optical extraction type is to extract a brightness signal by an optical ccd photographing method after the back plate is lightened, and the electrical extraction type is to extract electrical signals of the TFT and the OLED by an induction circuit of a driving chip. The two methods extract different kinds of signals, and thus the data processing modes are different. The optical extraction method has the advantages of simple structure and flexible method, and is widely adopted at the present stage, namely the Demura provided by the invention. The optical compensation method of the display panel comprises the following steps S1-S9.
S1, the low gray scale camera captures an image of the display panel.
And S2, processing the image by a DeMura module to obtain the optical data.
S3, acquiring optical data of the DeMura module, wherein the optical data comprises brightness data of each pixel in a display area, and the brightness data is low-frequency brightness data shot by a low-gray-scale camera. And in the step of acquiring the optical data of the DeMura module, removing high-frequency noise in the brightness data.
S4, the display area is divided into a plurality of luminance areas, and an average value of the optical data of each luminance area, that is, an average luminance of the area is calculated. The range of the luminance zones may be set according to the computational power of the processor, each zone comprising at least one matrix of pixels, e.g. 5 x 5, 10 x 10, 20 x 20, etc.
S5, calculating the ratio x of the brightness average value of the brightness area with the maximum brightness to the brightness average value of the brightness area in the center of the display area, and executing the next step if the ratio is greater than a preset value. The main purpose of the step is to judge whether the display area of the panel has serious problem of uneven brightness which can affect the visual effect of the user, determine whether the panel is a positive and negative screen, and if so, find out a brightness area with larger or smaller brightness so as to carry out the compensation processing of the next step.
S6, calculating the brightness compensation data for each brightness area according to the optical data (brightness average value) for each brightness area. Specifically, the luminance compensation data y for each luminance area is calculated using the formula y ═ a × Max, where Max is the luminance of the luminance area where the luminance is the maximum, a is the compensation gain, a ═ 1-1/x, 0< a <1, and x is the ratio of the luminance average value of the luminance area where the luminance is the maximum to the luminance average value of the luminance area at the center of the display area.
And S7, storing the brightness compensation data into a flash memory so as to execute the next step.
And S8, performing brightness compensation on each brightness area according to the brightness compensation data. Step S8 specifically includes the following steps: s801, establishing a pixel Gamma curve of each brightness area according to the brightness compensation data of each brightness area; and S802, calculating the compensation voltage value of each pixel according to the pixel Gamma curve. S803, sequentially judging whether the compensation voltage value (low gray scale) of each brightness area is greater than a threshold value; if the compensation voltage value of a certain brightness area is indeed greater than the threshold voltage, the compensation voltage value is replaced by the threshold value, and the overlarge compensation voltage value is replaced by the threshold voltage, so that the brightness of the brightness area is reduced, and the brightness of the whole panel display area is balanced. The threshold value is (b-Gray)/Gain; wherein Gray is the brightness of a Gray scale; gain is the actual debugging value of the gray scale; b is the minimum brightness value of the register.
And S9, storing the compensation voltage value into a flash memory.
The invention processes the optical data through a software algorithm, reduces the compensation range of the biased-bright display area or the biased-bright point on the premise of not influencing the compensation effect, and reduces the poor excessive compensation caused by the 'yin-yang screen'. The invention also reduces the voltage value of the high-brightness area by adjusting the low gray scale compensation target value, thereby reducing the display brightness of the area with overlarge brightness, reducing the risk that the pixel brightness is 0 and enabling the whole display effect to be more natural; and the low gray scale voltage value is limited, so that abnormal point display abnormity caused by abnormal point overcompensation is prevented.
The present invention also provides a storage medium for storing executable program code; the processor executes the computer program corresponding to the executable program code by reading the executable program code so as to execute the optical compensation method of the display panel.
The principle and the implementation of the present invention are explained by applying specific examples, and the above description of the embodiments is only used to help understanding the technical solution and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. An optical compensation method of a display panel is applied to the display panel with a DeMura module, the display panel comprises a display area, and the method is characterized by comprising the following steps:
acquiring optical data of the DeMura module, wherein the optical data comprises brightness data of each pixel in a display area, and the brightness data is brightness shot in a low gray scale;
dividing the display area into a plurality of luminance areas;
calculating the ratio x of the brightness area with the maximum brightness to the brightness of the brightness area at the center of the display area, and executing the next step if the ratio is greater than a preset value;
calculating brightness compensation data of each brightness area according to the optical data of each brightness area; and
performing brightness compensation on each brightness area according to the brightness compensation data;
the step of performing brightness compensation on each brightness area according to the brightness compensation data comprises the following steps:
establishing a pixel Gamma curve of each brightness area according to the brightness compensation data of each brightness area; and
calculating the compensation voltage value of each pixel according to the pixel Gamma curve;
the step of performing brightness compensation on each brightness area according to the brightness compensation data further comprises the following steps:
judging whether the compensation voltage value is larger than a threshold value; if yes, replacing the compensation voltage value with the threshold value;
the compensation voltage value is a low gray scale voltage value;
in the step of calculating the luminance compensation data for each luminance area according to the optical data, the method specifically includes the following steps:
calculating brightness compensation data y of each brightness area by using a formula y ═ a × Max, wherein Max is the brightness of the brightness area with the maximum brightness, a is a compensation gain, a ═ 1-1/x, and 0< a < 1;
the threshold value is (b-Gray)/Gain;
wherein Gray is the brightness of a Gray scale; gain is the actual debugging value of the gray scale; b is the minimum brightness value of the register.
2. The optical compensation method of a display panel according to claim 1,
before the step of acquiring the optical data of the DeMura module, the method further comprises the following steps:
the camera shoots an image of the display panel; and
and the DeMura module processes the image to obtain the optical data.
3. The optical compensation method of a display panel according to claim 1,
and in the step of acquiring the optical data of the DeMura module, removing high-frequency noise in the brightness data.
4. The optical compensation method of a display panel according to claim 1,
after the step of calculating the brightness compensation data of each brightness area according to the optical data of each brightness area, the method further comprises the following steps:
and storing the brightness compensation data into a flash memory.
5. The optical compensation method of a display panel according to claim 1,
after the step of calculating the compensation voltage value of each pixel according to the pixel Gamma curve, the method also comprises the following steps:
and storing the compensation voltage value into a flash memory.
6. A storage medium for storing executable program code; characterized in that a processor runs a computer program corresponding to the executable program code by reading the executable program code to perform the optical compensation method of the display panel according to any one of claims 1 to 5.
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| US20240212636A1 (en) * | 2021-10-27 | 2024-06-27 | Hefei Boe Optoelectronics Technology Co., Ltd. | Brightness regulating method, brightness regulating system and display device |
| WO2023197241A1 (en) * | 2022-04-14 | 2023-10-19 | 京东方科技集团股份有限公司 | Display defect repairing method for display panel, and display device |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489420A (en) * | 2013-09-03 | 2014-01-01 | 深圳市华星光电技术有限公司 | Method for driving liquid crystal panel, liquid crystal display device and method for compensating light spots |
| CN103531175A (en) * | 2013-10-31 | 2014-01-22 | 广东威创视讯科技股份有限公司 | Method and system for adjusting brightness uniformity of screen of splicing display device |
| CN105096875A (en) * | 2015-08-14 | 2015-11-25 | 武汉华星光电技术有限公司 | Gray-scale control method, gray-scale control device and liquid crystal display screen |
| CN107045863A (en) * | 2017-06-26 | 2017-08-15 | 惠科股份有限公司 | Gray scale adjusting method and device of display panel |
| CN107464524A (en) * | 2017-08-25 | 2017-12-12 | 惠科股份有限公司 | Optimization mode and equipment for brightness compensation |
| CN107492335A (en) * | 2017-09-26 | 2017-12-19 | 惠科股份有限公司 | Method, structure and restoration system for generating image compensation signal |
| CN107731194A (en) * | 2017-11-21 | 2018-02-23 | 深圳市华星光电半导体显示技术有限公司 | A kind of mura compensation methodes and device |
| CN108766372A (en) * | 2018-04-28 | 2018-11-06 | 咸阳彩虹光电科技有限公司 | A method of improving the mura phenomenons of display panel |
| CN109377935A (en) * | 2018-12-10 | 2019-02-22 | 京东方科技集团股份有限公司 | Luminance compensation method, device and electro-luminescence display device |
| CN109712592A (en) * | 2019-02-18 | 2019-05-03 | 惠科股份有限公司 | Brightness adjusting method and display device |
| CN110444152A (en) * | 2018-05-02 | 2019-11-12 | 京东方科技集团股份有限公司 | Optical compensation method and device, display device, display methods and storage medium |
| CN111968583A (en) * | 2020-07-23 | 2020-11-20 | 昆山国显光电有限公司 | Display panel brightness compensation control method and brightness compensation control system |
| CN112017590A (en) * | 2019-05-28 | 2020-12-01 | 陕西坤同半导体科技有限公司 | Mura compensation method, device, medium and electronic equipment for display panel |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236237B (en) * | 2013-04-26 | 2015-04-08 | 京东方科技集团股份有限公司 | Pixel unit circuit and compensating method of pixel unit circuit as well as display device |
| CN105513541B (en) * | 2016-02-25 | 2018-11-23 | 深圳市华星光电技术有限公司 | The data compensating circuit and method and OLED display of OLED |
-
2021
- 2021-05-31 CN CN202110598126.3A patent/CN113284461B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489420A (en) * | 2013-09-03 | 2014-01-01 | 深圳市华星光电技术有限公司 | Method for driving liquid crystal panel, liquid crystal display device and method for compensating light spots |
| CN103531175A (en) * | 2013-10-31 | 2014-01-22 | 广东威创视讯科技股份有限公司 | Method and system for adjusting brightness uniformity of screen of splicing display device |
| CN105096875A (en) * | 2015-08-14 | 2015-11-25 | 武汉华星光电技术有限公司 | Gray-scale control method, gray-scale control device and liquid crystal display screen |
| CN107045863A (en) * | 2017-06-26 | 2017-08-15 | 惠科股份有限公司 | Gray scale adjusting method and device of display panel |
| CN107464524A (en) * | 2017-08-25 | 2017-12-12 | 惠科股份有限公司 | Optimization mode and equipment for brightness compensation |
| CN107492335A (en) * | 2017-09-26 | 2017-12-19 | 惠科股份有限公司 | Method, structure and restoration system for generating image compensation signal |
| CN107731194A (en) * | 2017-11-21 | 2018-02-23 | 深圳市华星光电半导体显示技术有限公司 | A kind of mura compensation methodes and device |
| CN108766372A (en) * | 2018-04-28 | 2018-11-06 | 咸阳彩虹光电科技有限公司 | A method of improving the mura phenomenons of display panel |
| CN110444152A (en) * | 2018-05-02 | 2019-11-12 | 京东方科技集团股份有限公司 | Optical compensation method and device, display device, display methods and storage medium |
| CN109377935A (en) * | 2018-12-10 | 2019-02-22 | 京东方科技集团股份有限公司 | Luminance compensation method, device and electro-luminescence display device |
| CN109712592A (en) * | 2019-02-18 | 2019-05-03 | 惠科股份有限公司 | Brightness adjusting method and display device |
| CN112017590A (en) * | 2019-05-28 | 2020-12-01 | 陕西坤同半导体科技有限公司 | Mura compensation method, device, medium and electronic equipment for display panel |
| CN111968583A (en) * | 2020-07-23 | 2020-11-20 | 昆山国显光电有限公司 | Display panel brightness compensation control method and brightness compensation control system |
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