CN114120876B - Stain repairing method, display panel, electronic device and computer-readable storage medium - Google Patents
Stain repairing method, display panel, electronic device and computer-readable storage medium 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
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/77—Retouching; Inpainting; Scratch removal
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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
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Abstract
The application provides a color spot repairing method, a display panel, electronic equipment and a computer storage medium, wherein the color spot repairing method comprises the following steps: acquiring a frame image of a display panel; obtaining first pixel gray data according to frame image analysis of a display panel; presetting a plurality of repair areas; calculating a first compensation value of each pixel in the repair area according to the first pixel gray data; compensating each pixel in the repair area according to the first compensation value; acquiring a frame image of the compensated display panel; obtaining second pixel gray data according to the frame image analysis of the compensated display panel; determining a defective pixel according to the second pixel gray data; calculating a second compensation value of the defective pixel according to the second pixel gray data; and compensating the defective pixel according to the second compensation value. And the second compensation value of the defective pixel is calculated independently, and the defective pixel is compensated according to the second compensation value, so that better color spot compensation and repair are obtained, and the display effect is improved.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a method for repairing color spots, a display panel, an electronic device, and a computer storage medium.
Background
Display technology has long been one of the important research directions in electronic devices. At present, the larger the size of a display panel of an electronic device, the more easily the phenomenon of uneven brightness occurs, and the phenomenon of color spots is mainly reflected by that pixels of some parts on the display panel are brighter or darker than peripheral areas.
In the prior art, a method for repairing color spots mainly defines a pixel area, and compensates each pixel in the pixel area on a display panel. However, when the color spots are located at the boundary of the pixel regions or smaller than the coverage area of the pixel regions, the color spots cannot be completely repaired.
Disclosure of Invention
The application discloses a method for repairing color spots, and aims to solve the technical problem that the color spots cannot be completely repaired.
In a first aspect, the present application provides a method for repairing a color patch, applied to a display panel, the method comprising:
acquiring a frame image of the display panel;
obtaining first pixel gray data according to frame image analysis of the display panel;
presetting a plurality of repair areas;
calculating a first compensation value of each pixel in the repair area according to the first pixel gray data;
compensating each pixel in the repair area according to the first compensation value;
acquiring a compensated frame image of the display panel;
analyzing the compensated frame image of the display panel to obtain second pixel gray data;
determining a defective pixel according to the second pixel gray data;
calculating a second compensation value of the defective pixel according to the second pixel gray data;
and compensating the defective pixel according to the second compensation value.
Optionally, the calculating the first compensation value of each pixel on the display panel according to the first pixel gray data specifically includes:
the repair area is formed by surrounding 4 pixel nodes;
acquiring a node compensation value corresponding to the pixel node according to a corresponding compensation lookup table;
and calculating the compensation value of each pixel in the repair area according to the coordinates of the 4 pixel nodes and the node compensation value, and taking the calculated compensation value as the first compensation value.
Optionally, the calculating the second compensation value of the defective pixel according to the second pixel gray data specifically includes:
determining a defect area according to the position and the size of the defect pixel in the corresponding repair area, wherein the defect area is formed by surrounding 4 defect pixel nodes;
and calculating a compensation value of each pixel in the defect area according to the weight of the maximum value and the average value of the gray brightness of the pixels in the defect area, and amplifying according to the ratio of the defect area to the repair area to obtain the second compensation value.
Optionally, the calculating the second compensation value of the defective pixel according to the second pixel gray data specifically includes:
marking the repair area where the defective pixel is located;
and acquiring a compensation value of each pixel in the marked repair area according to a corresponding compensation lookup table as the second compensation value.
Optionally, the first pixel gray data includes a plurality of gray-scale frames, each gray-scale frame having a different gray-scale, and each gray-scale frame having a corresponding compensation lookup table.
In a second aspect, the present application further provides a display panel, where the display panel includes a display area and a non-display area, the display area is used for displaying a picture, and the non-display area is enclosed in the display area; the display panel further includes:
the repair module comprises a receiving sub-module, an analyzing sub-module and a processing sub-module;
a flash memory module; a kind of electronic device with high-pressure air-conditioning system
A pixel;
the receiving sub-module is used for acquiring a frame image of the display panel;
the analysis submodule is used for obtaining first pixel gray data according to frame image analysis of the display panel;
the processing submodule is used for presetting a plurality of repair areas;
the processing sub-module is further used for calculating a first compensation value of each pixel in the repair area according to the first pixel gray data;
the processing sub-module is further configured to compensate each pixel in the repair area according to the first compensation value;
the receiving sub-module is also used for acquiring the compensated frame image of the display panel;
the analysis submodule is also used for analyzing and obtaining second pixel gray data according to the compensated frame image of the display panel;
the processing sub-module is further used for determining a defective pixel according to the second pixel gray data;
the processing sub-module is further configured to calculate a second compensation value of the defective pixel according to the second pixel gray data;
the processing sub-module is further configured to compensate the defective pixel according to the second compensation value;
the repair module and the flash memory module are electrically connected and arranged in the non-display area.
Optionally, the repair area is formed by surrounding 4 pixel nodes;
the processing sub-module is further used for obtaining a node compensation value corresponding to the pixel node according to the corresponding compensation lookup table;
the processing submodule is also used for calculating a compensation value of each pixel in the repair area according to coordinates of 4 pixel nodes and the node compensation value, and the compensation value is used as the first compensation value;
the flash memory module is used for storing the first compensation value.
Optionally, the processing sub-module is configured to determine a defect area according to a position and a size of the defect pixel in the corresponding repair area, where the defect area is formed by surrounding 4 defect pixel nodes;
the processing submodule is also used for calculating a compensation value of each pixel in the defect area according to the weight of the maximum value and the average value of the gray brightness of the pixel in the defect area, and amplifying the compensation value according to the ratio of the defect area to the repair area to obtain a second compensation value; or alternatively, the process may be performed,
the processing submodule is used for marking the repair area where the defective pixel is located;
the processing sub-module is further configured to obtain a compensation value of each pixel in the marked repair area according to a corresponding compensation lookup table, and use the compensation value as the second compensation value;
the flash memory module is used for storing the second compensation value.
In a third aspect, the present application further provides an electronic device, where the electronic device includes a housing and the display panel according to the second aspect, and the housing is used for carrying and mounting the display panel.
In a fourth aspect, the present application also provides a computer readable medium storing a computer readable program which, when read and executed by a processor, performs the stain repair method according to the first aspect.
When the size of the defective pixel is smaller than that of the repair area or the defective pixel is located at the junction of the repair area, after repairing the pixels in the repair area according to the first compensation value, the second compensation value of the defective pixel is calculated independently for smaller color spots still existing, and the defective pixel is compensated according to the second compensation value, so that better color spot compensation repair is obtained, and the display effect is improved.
Drawings
For a clearer description of the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a stain repairing method according to an embodiment of the present application.
Fig. 2 is a diagram of ideal pixel data according to an embodiment of the present application.
Fig. 3 is a block diagram of possible pixel gray scale data according to an embodiment of the present application.
Fig. 4 is a graph of pixel gray scale luminance after repair according to an embodiment of the present application.
Fig. 5 is a schematic diagram of a repair area according to an embodiment of the present application.
Fig. 6 is a schematic diagram of a defective area according to an embodiment of the present application.
Fig. 7 is a schematic diagram of a display panel frame according to an embodiment of the application.
Fig. 8 is a schematic top view of a display panel according to an embodiment of the application.
Fig. 9 is a schematic top view of an electronic device according to an embodiment of the application.
Fig. 10 is a schematic diagram of an electronic device frame according to an embodiment of the application.
Reference numerals illustrate: the device comprises a display panel-1, a repair module-11, a receiving sub-module-111, an analysis sub-module-112, a processing sub-module-113, a flash memory module-12, a pixel-13, a display area-14, a non-display area-15, an electronic device-2, a shell-21, a processor-22 and a memory-23.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to fall within the scope of the present application.
The application provides a method for repairing color spots, which is applied to a display panel, referring to fig. 1, fig. 1 is a schematic flow chart of a method for repairing color spots according to an embodiment of the application. The stain repairing method includes steps S101, S102, S103, S104, S105, S106, S107, S108, S109, S110, and detailed descriptions of steps S101, S102, S103, S104, S105, S106, S107, S108, S109, S110 are as follows.
S101, acquiring a frame image of the display panel;
s102, analyzing and obtaining first pixel gray data according to a frame image of the display panel;
s103, presetting a plurality of repair areas;
s104, calculating a first compensation value of each pixel in the repair area according to the first pixel gray data;
s105, compensating each pixel in the repair area according to the first compensation value;
s106, acquiring a compensated frame image of the display panel;
s107, analyzing and obtaining second pixel gray data according to the compensated frame image of the display panel;
s108, determining a defective pixel according to the second pixel gray data;
s109, calculating a second compensation value of the defective pixel according to the second pixel gray data;
and S110, compensating the defective pixel according to the second compensation value.
Typically, the display panel is provided with pixels distributed in an array for displaying different colors to form a display screen. The frame image of the display panel is a display screen of a certain frame of the display panel. The first pixel gray-scale data or the second pixel gray-scale data of the frame image may be analytically calculated according to the color of the pixel.
Referring to fig. 2-4 together, fig. 2 is a schematic diagram of ideal pixel data according to an embodiment of the present application; FIG. 3 is a block diagram of possible pixel gray scale data according to an embodiment of the present application; fig. 4 is a graph of pixel gray scale luminance after repair according to an embodiment of the present application. As shown in fig. 2, ideally, the gray brightness value of all the pixels is 50, so that no color stain exists. As shown in fig. 3, in a real-world situation, some portions of the pixels may be brighter or darker than the surrounding area. As shown in fig. 4, even after repairing the color spots on the display surface by the prior art, there may exist some "white pill", "white dot" or "black dot", "black fog" pixels, that is, pixels whose brightness is higher than surrounding pixels or pixels whose brightness is lower than surrounding pixels.
In this embodiment, each pixel is correspondingly charged with a data voltage to control the pixel for displaying light with different brightness. Compensating each pixel according to the first compensation value means that the data voltage to which the pixel is charged is changed, thereby changing the gray brightness of the pixel. Similarly, compensating the defective pixel according to the second compensation value means that the data voltage charged to the defective pixel is changed, thereby changing the gray-scale brightness of the pixel. It will be appreciated that in a frame image, each pixel corresponds to a data voltage, the first compensation value or the second compensation value.
In this embodiment, the resolution of the display panel is 3840×2160, and the number of repair areas is 480×270. It will be appreciated that in other possible embodiments, the resolution of the display panel and the predetermined repair area may be of other sizes, for example, the resolution of the display panel may be 1980 x 1060, 2560 x 1440, the repair area may be 1*1 pixels, 6*6 pixels, etc., which is not a limitation of the present application. It will be appreciated that when the repair area is 1*1 pixels, the repair area may be equivalent to the area where the pixel is located.
When the size of the defective pixel is smaller than the repair area or the defective pixel is located at the junction of the repair area, after repairing the pixel in the repair area according to the first compensation value, a color spot problem may still exist. It can be understood that in this embodiment, the second compensation value of the defective pixel is calculated separately, and the defective pixel is compensated according to the second compensation value, so that better color spot compensation repair is obtained, and a display effect is improved.
In one possible implementation manner, the calculating the first compensation value of each pixel on the display panel according to the first pixel gray data specifically includes:
the repair area is formed by surrounding 4 pixel nodes;
acquiring a node compensation value corresponding to the pixel node according to a corresponding compensation lookup table;
and calculating the compensation value of each pixel in the repair area according to the coordinates of the 4 pixel nodes and the node compensation value, and taking the calculated compensation value as the first compensation value.
Specifically, the range in which the repair areas are spliced together covers the whole display panel. For example, referring to fig. 5 together, fig. 5 is a schematic diagram of a repair area according to an embodiment of the application. The repair area is a rectangular area with 8 x 8 pixels, and pixels P corresponding to 4 corners of the rectangular area 1 、P 2 、P 3 、P 4 And 4 pixel nodes of the repair area.
The compensation lookup table refers to a data table generated by the repair module according to the first pixel gray data and the area size analysis and calculation, wherein each pixel on the display panel corresponds to a compensation value in the compensation lookup table. In this embodiment, the calculation formula for calculating the compensation value of each pixel in the repair area according to the coordinates of the 4 pixel nodes and the node compensation value is as follows:
E 5 ＝((Y 5 -Y 1 )*E 4 +(Y 4 -Y 5 )*E 1 )/(Y 4 -Y 1 )
E 6 ＝((Y 6 -Y 2 )*E 3 +(Y 3 -Y 6 )*E 2 )/(Y 3 -Y 2 )
E P ＝((X 6 -X P )*E 5 +(X P -X 5 )*E 6 )/(X 6 -X 5 )
wherein E is P The first compensation value X representing the pixel point P P Representing the abscissa of the pixel point P; (X) 5 ，Y 5 )、(X 6 ，Y 6 ) Respectively represent pixel points P 5 、P 6 And pixel point P 5 、P 6 The ordinate of (2) is the same as the ordinate of the pixel point P; y is Y 1 、Y 2 、Y 3 、Y 4 Respectively represent pixel points P 1 、P 2 、P 3 、P 4 Is the ordinate of (2); e (E) 1 、E 2 、E 3 、E 4 、E 5 、E 6 Respectively represent pixel points P 1 、P 2 、P 3 、P 4 、P 5 、P 6 Is used for the compensation value of (a).
It can be appreciated that in this embodiment, after the first compensation value of each pixel is calculated according to the repair area, compensation is performed on each pixel on the display panel to implement preliminary stain repair.
In a possible implementation manner, the calculating the second compensation value of the defective pixel according to the second pixel gray data specifically includes:
determining a defect area according to the position and the size of the defect pixel in the corresponding repair area, wherein the defect area is formed by surrounding 4 defect pixel nodes;
and calculating a compensation value of each pixel in the defect area according to the weight of the maximum value and the average value of the gray brightness of the pixels in the defect area, and amplifying according to the ratio of the defect area to the repair area to obtain the second compensation value.
It should be noted that, when the size of the defective pixel is smaller, that is, the size of the defective pixel is smaller than the size of the repair area, the compensation repair is performed on each pixel on the display panel by the first compensation value, and the phenomena of "white pill", "white dot" or "black dot", "black fog" may still occur.
Specifically, referring to fig. 6, fig. 6 is a schematic diagram of a defect area according to an embodiment of the application. In this embodiment, the defective pixel is smaller, and the defective area determined according to the position and the size of the defective pixel in the corresponding repair area is a 6*6 pixel area, which is smaller than an 8×8 pixel area of the repair area.
In this embodiment, the calculation formula of the weighting according to the maximum value and the average value of the pixel gradation luminance in the defective region is as follows:
in this embodiment, the calculation formula of the weighting according to the single pixel gray brightness value and the average value in the defect area is as follows:
8 x 8 pixel gray scale luminance average
Separate compensation values for 8 x 8 pixels
Final weighted compensation value:
wherein, 8 x 8 pixel areas are recorded as: p (P) 1 ,P 2 ,P 3 ……P 64 。f 1 ，f 2 ，f 3 ……f 64 Weights of 8×8=64 pixels are respectively indicated. The original brightness of the 8 x 8 pixel area is recorded as: p (P) 1 Point brightness=L 1 ,P 2 Point brightness=L 2 ,P 3 Point brightness=L 3 ……P 64 Point brightness=L 64 。
Since the compensation is performed for each pixel in the repair area in the final compensation, in this embodiment, the compensation value of each pixel in the defect area and the ratio of the defect area to the repair area need to be amplified, that is, the ratio of (6*6)/(8×8) is required. For example, if the compensation value of a certain pixel in the defect area is "+4", the second compensation value of the final pixel is (+4x6x6)/(8x8) = +2.25.
It will be appreciated that in other possible embodiments, as the sizes of the repair area and the defect area change, the corresponding magnification ratio also changes.
The present application also provides another method for calculating the second compensation value, in one possible implementation manner, the calculating the second compensation value of the defective pixel according to the second pixel gray data specifically includes:
marking the repair area where the defective pixel is located;
and acquiring a compensation value of each pixel in the marked repair area according to a corresponding compensation lookup table as the second compensation value.
It should be noted that, when the defective pixel is located at the junction of the repair areas, each pixel on the display panel is compensated and repaired by the first compensation value, and it is possible that the two repair areas adjacent to the defective pixel have the phenomena of "white pill", "white dot" or "black dot", "black fog".
In this embodiment, each pixel in the repair area that is marked may be regarded as a defective area, that is, the size of the defective area is 1*1 pixels. It will be appreciated that if the defective pixel is located at the junction of the repair areas, then both repair areas are marked.
Specifically, when the first compensation value is calculated, the area corresponding to the compensation lookup table is the whole display panel; in this embodiment, the compensation value of each pixel in the marked repair area is obtained according to a corresponding compensation lookup table, and the repair area is the area corresponding to the corresponding compensation lookup table.
It can be understood that the compensation values in the two tables are different, and because the repair area is smaller relative to the display panel, the compensation value obtained by the repair module according to the area calculation is more accurate, so that the defective pixels in the repair area are better compensated, and the display effect is improved.
In one possible implementation, the first pixel gray data includes a plurality of gray scale frames, each gray scale frame having a different gray scale, and each gray scale frame having a corresponding compensation look-up table.
In this embodiment, the gray scales of the gray scale frame are different, the brightness representing the gray scale of the pixel obtained by the frame image analysis is different, and the compensation lookup table obtained by the repair module according to the first pixel data is also different, so that the first compensation value obtained finally is also different. When the number of the grayscale images included in the first pixel grayscale data is three or more, the first compensation value of another grayscale image may be calculated according to the first compensation values of two of the grayscale images.
Specifically, the calculation formula of the first compensation value of the gray-scale picture is as follows:
P C ＝((G 1 -G 3 )*P B +(G 3 -G 2 )*P A )/(G 1 -G 2 )
wherein G is 1 、G 2 、G 3 Respectively the gray scale values of three different gray scale pictures, P A 、P B 、P C G respectively 1 、G 2 、G 3 The first compensation value in gray scale.
It can be understood that the number of gray-scale frames in the second pixel gray-scale data is equal to the number of gray-scale frames in the first pixel gray-scale data, that is, the second compensation value of another gray-scale frame can be obtained by a similar computing company through the second compensation values of two of the gray-scale frames, which is not described herein.
The application also provides a display panel 1, referring to fig. 7, fig. 7 is a schematic diagram of a display panel frame according to an embodiment of the application. The display panel 1 comprises a repair module 11, a flash memory module 12 and pixels 13; the repair module 11 comprises a receiving sub-module 111, an analyzing sub-module 112 and a processing sub-module 113; the receiving sub-module 111 is configured to acquire a frame image of the display panel 1; the analysis sub-module 112 is configured to analyze the frame image of the display panel 1 to obtain first pixel gray data; the processing submodule 113 is used for presetting a plurality of repair areas; the processing sub-module 113 is further configured to calculate a first compensation value of each pixel 13 in the repair area according to the first pixel gray data; the processing sub-module 113 is further configured to compensate each pixel 13 in the repair area according to the first compensation value; the receiving sub-module 111 is further configured to obtain a compensated frame image of the display panel 1; the analysis sub-module 112 is further configured to analyze the compensated frame image of the display panel 1 to obtain second pixel gray data; the processing sub-module 113 is further configured to determine a defective pixel in the defective area according to the second pixel gray data; the processing sub-module 113 is further configured to calculate a second compensation value of each pixel 13 in the defect area according to the second pixel gray data; the flash memory module 12 is further configured to compensate the defective pixel according to the second compensation value.
Specifically, the frame image, the first pixel gray data, the second pixel gray data, the first compensation value, the second pixel compensation value, the defect area, etc. of the display panel 1 refer to the above-mentioned color spot repairing method, and are not described herein.
In this embodiment, the receiving sub-module 111 may be used to obtain the frame image of the display panel 1, and may be sent to the receiving sub-module 111 after being photographed by a Charge-coupled Device (CCD) image sensor, or may be sent to the receiving sub-module 111 by other electronic components, which is not limited in the present application.
In this embodiment, the repair module 11 is a De-Mura repair device, and the Flash memory module 12 is a Flash memory device. It will be appreciated that in other possible embodiments, the repair module 11 and the flash memory module 12 may be other devices, and the application is not limited in this regard.
In one possible embodiment, please refer to fig. 8, fig. 8 is a schematic top view of a display panel according to an embodiment of the present application. The display panel 1 further includes a display area 14 and a non-display area 15, the display area 14 is used for displaying a picture, and the non-display area 15 is enclosed in the display area 14; the repair module 11 and the flash memory module 12 are electrically connected and disposed in the non-display area 15.
Specifically, the display area 14 refers to an area of the display panel 1 for displaying images, videos, and the like. It can be appreciated that, in this embodiment, the repair module 11 and the flash memory module 12 are disposed in the non-display area 15, so as to avoid that the repair module 11 and the flash memory module 12 affect the normal operation of the pixels 13 located in the display area 14.
In one possible implementation manner, the repair area is formed by surrounding 4 pixel nodes; the processing sub-module 113 is further configured to obtain a node compensation value corresponding to the pixel node according to a corresponding compensation lookup table; the processing sub-module 113 is further configured to calculate a compensation value of each pixel in the repair area according to coordinates of the 4 pixel nodes and the node compensation value, and use the calculated compensation value as the first compensation value; the flash memory module 12 is configured to store the first compensation value.
In a possible implementation manner, the processing submodule 113 is configured to determine a defect area according to a position and a size of the defective pixel in the corresponding repair area, where the defect area is formed by surrounding 4 defective pixel nodes; the processing sub-module 113 is further configured to calculate a compensation value of each pixel in the defect area according to the weight of the maximum value and the average value of the gray brightness of the pixel in the defect area, and amplify the compensation value as the second compensation value according to the ratio of the defect area to the repair area; or alternatively, the process may be performed,
the processing sub-module 113 is configured to mark the repair area where the defective pixel is located; the processing sub-module 113 is further configured to obtain, according to a corresponding compensation lookup table, a compensation value of each pixel in the marked repair area as the second compensation value; the flash memory module 12 is configured to store the second compensation value.
Finally, after the defective pixels on the display panel 1 are compensated according to the second compensation value stored in the flash memory module 12, the color spot repairing effect of the display screen is better.
The application also provides an electronic device 2, please refer to fig. 9, fig. 9 is a schematic top view of the electronic device according to an embodiment of the application. The electronic device 2 comprises a housing 21 and the display panel 1 as described above, wherein the housing 21 is used for bearing and mounting the display panel 1. Specifically, the display panel 1 is described above, and will not be described herein.
The application also provides an electronic device 2, please refer to fig. 10, fig. 10 is a schematic diagram of an electronic device frame according to an embodiment of the application. The electronic device 2 comprises a processor 22 and a memory 23, the memory 23 storing program code for performing the stain repair method as described above, the processor 22 being adapted to read and call up the code stored in the memory 23.
Specifically, the method for repairing the color spots is described above, and will not be described herein. It should be noted that, in the embodiment of the present application, the electronic device 2 may be a mobile phone, a smart phone, a tablet computer, an electronic reader, a portable device when worn, a notebook computer, etc., which may communicate with a data transfer server through the internet, where the data transfer server may be an instant messaging server, an SNS (Social Networking Services, social network service) server, etc., and the embodiment of the present application is not limited thereto.
The present application also provides a computer readable medium having a computer readable program stored thereon which, when read and executed by the processor 22, performs a stain repair method as described above.
Specifically, the method for repairing the color spots is described above, and will not be described herein. Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be implemented by a program to instruct related hardware, the program may be stored in a computer readable storage medium, and the storage medium may include: flash disk, read-Only Memory 23 (English: read-Only Memory; ROM), random access Memory (English: random Access Memory; RAM), magnetic disk or optical disk, etc.
The principles and embodiments of the present application have been described herein with reference to specific examples, the description of the above embodiments being only for the purpose of aiding in the understanding of the core concept of the present application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (7)
1. A method for repairing a color spot applied to a display panel, the method comprising:
acquiring a frame image of the display panel;
obtaining first pixel gray data according to frame image analysis of the display panel;
presetting a plurality of repair areas;
calculating a first compensation value of each pixel in the repair area according to the first pixel gray data;
compensating each pixel in the repair area according to the first compensation value;
acquiring a compensated frame image of the display panel;
analyzing the compensated frame image of the display panel to obtain second pixel gray data;
determining a defective pixel according to the second pixel gray data;
calculating a second compensation value of the defective pixel according to the second pixel gray data;
determining a defect area according to the position and the size of the defect pixel in the corresponding repair area, wherein the defect area is formed by surrounding 4 defect pixel nodes;
calculating a compensation value of each pixel in the defect area according to the weight of the maximum value and the average value of the gray brightness of the pixels in the defect area, and amplifying the compensation value according to the ratio of the defect area to the repair area to obtain a second compensation value;
wherein, the average value of gray brightness of 8 x 8 pixelsRespective compensation values of 8 x 8 pixels +.>
Final weighted compensation value
Wherein, 8 x 8 pixel areas are respectively recorded as P 1 ，P 2 ，P 3 …P 64 ；f 1 ，f 2 ，f 3 …f 64 Weights of 8×8=64 pixels are respectively expressed; the original brightness of the 8 x 8 pixel areas is recorded as P respectively 1 Point brightness=L 1 ，P 2 Point brightness=L 2 ，P 3 Point brightness=L 3 …P 64 Point brightness=L 64 ；
And compensating the defective pixel according to the second compensation value.
2. The method of claim 1, wherein calculating a first compensation value for each pixel on the display panel based on the first pixel gray scale data, comprises:
the repair area is formed by surrounding 4 pixel nodes; acquiring a node compensation value corresponding to the pixel node according to a corresponding compensation lookup table;
and calculating the compensation value of each pixel in the repair area according to the coordinates of the 4 pixel nodes and the node compensation value, and taking the calculated compensation value as the first compensation value.
3. The stain repair method of claim 1, wherein the first pixel gray scale data comprises a plurality of gray scale frames, each gray scale frame having a different gray scale, and each gray scale frame having a corresponding compensation look-up table.
4. The display panel comprises a display area and a non-display area, wherein the display area is used for displaying pictures, and the non-display area is arranged in the display area in a surrounding mode; the display panel is characterized in that the display panel further comprises:
the repair module comprises a receiving sub-module, an analyzing sub-module and a processing sub-module;
a flash memory module; a kind of electronic device with high-pressure air-conditioning system
A pixel;
the receiving sub-module is used for acquiring a frame image of the display panel;
the analysis submodule is used for obtaining first pixel gray data according to frame image analysis of the display panel;
the processing submodule is used for presetting a plurality of repair areas;
the processing sub-module is further used for calculating a first compensation value of each pixel in the repair area according to the first pixel gray data;
the processing sub-module is further configured to compensate each pixel in the repair area according to the first compensation value;
the receiving sub-module is also used for acquiring the compensated frame image of the display panel;
the analysis submodule is also used for analyzing and obtaining second pixel gray data according to the compensated frame image of the display panel;
the processing sub-module is further used for determining a defective pixel according to the second pixel gray data;
the processing sub-module is further configured to calculate a second compensation value of the defective pixel according to the second pixel gray data;
the processing submodule is used for determining a defect area according to the position and the size of the defect pixel in the corresponding repair area, and the defect area is formed by surrounding 4 defect pixel nodes;
the processing submodule is also used for calculating a compensation value of each pixel in the defect area according to the weight of the maximum value and the average value of the gray brightness of the pixel in the defect area, and amplifying the compensation value according to the ratio of the defect area to the repair area to obtain a second compensation value;
wherein, the average value of gray brightness of 8 x 8 pixelsRespective compensation values of 8 x 8 pixels +.>
Final weighted compensation value
Wherein, 8 x 8 pixel areas are respectively recorded as P 1 ，P 2 ，P 3 …P 64 ；f 1 ，f 2 ，f 3 …f 64 Weights of 8×8=64 pixels are respectively expressed; the original brightness of the 8 x 8 pixel areas is recorded as P respectively 1 Point brightness=L 1 ，P 2 Point brightness=L 2 ，P 3 Point brightness=L 3 …P 64 Point brightness=L 64 ；
The flash memory module is used for storing the second compensation value;
the processing sub-module is further configured to compensate the defective pixel according to the second compensation value;
the repair module and the flash memory module are electrically connected and arranged in the non-display area.
5. The display panel of claim 4, wherein the repair area is defined by 4 pixel nodes;
the processing sub-module is further used for obtaining a node compensation value corresponding to the pixel node according to the corresponding compensation lookup table;
the processing submodule is also used for calculating a compensation value of each pixel in the repair area according to coordinates of 4 pixel nodes and the node compensation value, and the compensation value is used as the first compensation value;
the flash memory module is used for storing the first compensation value.
6. An electronic device, characterized in that the electronic device comprises a housing and a display panel according to any one of claims 4-5, the housing being adapted to carry and mount the display panel.
7. A computer readable medium, characterized in that the computer readable medium stores a computer readable program which, when read and executed by a processor, performs a stain repair method according to any of claims 1-3.
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