CN114120876A - Color spot repairing method, display panel, electronic device and computer-readable storage medium - Google Patents

Color spot repairing method, display panel, electronic device and computer-readable storage medium Download PDF

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Publication number
CN114120876A
CN114120876A CN202111425971.7A CN202111425971A CN114120876A CN 114120876 A CN114120876 A CN 114120876A CN 202111425971 A CN202111425971 A CN 202111425971A CN 114120876 A CN114120876 A CN 114120876A
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Prior art keywords
pixel
compensation value
display panel
area
repair
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CN202111425971.7A
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CN114120876B (en
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陈宏辉
潘大洪
袁海江
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HKC Co Ltd
Changsha HKC Optoelectronics Co Ltd
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HKC Co Ltd
Changsha HKC Optoelectronics Co Ltd
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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
    • G06T5/77—
    • 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
    • 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
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping

Abstract

The application provides a color spot repairing method, a display panel, an electronic device and a computer-readable storage medium, wherein the color spot repairing method comprises the following steps: acquiring a frame image of a display panel; analyzing a frame image of the display panel to obtain first pixel gray data; 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; analyzing according to 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. The second compensation value of the defective pixel is independently calculated, 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

Color spot repairing method, display panel, electronic device and computer-readable storage medium
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a color spot repairing method, a display panel, an electronic device, and a computer-readable storage medium.
Background
Display technology has been one of the important research directions in electronic devices. At present, the larger the size of a display panel of an electronic device is, the more easily the phenomenon of uneven brightness occurs, which is mainly reflected in that some parts of pixels on the display panel are brighter or darker than the peripheral area, i.e. the phenomenon of color spots.
In the prior art, a color spot repairing method mainly defines a pixel area and compensates each pixel in the pixel area on a display panel. However, when the color spot is located at the boundary of the pixel region or is smaller than the coverage of the pixel region, the color spot cannot be completely repaired.
Disclosure of Invention
The application discloses a color spot repairing method, and aims to solve the technical problem that color spots cannot be completely repaired.
In a first aspect, the present application provides a color spot repairing method applied to a display panel, the color spot repairing method including:
acquiring a frame image of the display panel;
analyzing according to the frame image of the display panel to obtain first pixel gray data;
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 according to 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 a first compensation value of each pixel on the display panel according to the first pixel gray scale data specifically includes:
the repair area is formed by enclosing 4 pixel nodes;
acquiring a node compensation value corresponding to the pixel node according to a corresponding compensation lookup table;
and calculating a compensation value of each pixel in the repair area according to the coordinates of the 4 pixel nodes and the node compensation value to serve as the first compensation value.
Optionally, the calculating a second compensation value of the defective pixel according to the second pixel gray scale data specifically includes:
determining a defective area according to the position and the size of the defective pixel in the corresponding repair area, wherein the defective area is formed by enclosing 4 defective pixel nodes;
and calculating a compensation value of each pixel in the defect area according to the weighting 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 serve as the second compensation value.
Optionally, the calculating a second compensation value of the defective pixel according to the second pixel gray scale data specifically includes:
marking the repair area where the defective pixel is located;
and acquiring the compensation value of each pixel in the marked repair area according to the corresponding compensation lookup table to serve as the second compensation value.
Optionally, the first pixel grayscale data includes a plurality of grayscale pictures, each grayscale of each grayscale picture is different, and each grayscale picture has 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 surrounded by the display area; the display panel further includes:
the repair module comprises a receiving submodule, an analysis submodule and a processing submodule;
a flash memory module; and
a pixel;
the receiving submodule is used for acquiring a frame image of the display panel;
the analysis submodule is used for analyzing and obtaining first pixel gray data according to the frame image 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 used for compensating each pixel in the repair area according to the first compensation value;
the receiving submodule is further 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 used for calculating a second compensation value of the defective pixel according to the second pixel gray data;
the processing sub-module is further used for compensating the defective pixel according to the second compensation value;
the repair module is electrically connected with the flash memory module and is arranged in the non-display area.
Optionally, the repair area is formed by enclosing 4 pixel nodes;
the processing sub-module is further used for acquiring a node compensation value corresponding to the pixel node according to the corresponding compensation lookup table;
the processing submodule is further used for calculating a compensation value of each pixel in the repair area according to the coordinates of the 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 defective region according to a position and a size of the defective pixel in the corresponding repair region, where the defective region is formed by enclosing 4 defective pixel nodes;
the processing submodule is further used for calculating a compensation value of each pixel in the defect area according to the weighting of the maximum value and the average value of the gray level 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 serve as the second compensation value; alternatively, the first and second electrodes may be,
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 the 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, which includes a housing and the display panel as described in the second aspect, where the housing is used for bearing and mounting the display panel.
In a fourth aspect, the present application further provides a computer readable medium storing a computer readable program, and when the computer readable program is read and executed by a processor, the method for repairing color spots according to the first aspect is performed.
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 the pixel in the repair area is repaired according to the first compensation value, aiming at the still existing smaller color spots, the second compensation value of the defective pixel is independently calculated, 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
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings based on the drawings without any inventive exercise.
Fig. 1 is a schematic flow chart of a color spot repairing method according to an embodiment of the present disclosure.
Fig. 2 shows ideal pixel data according to an embodiment of the present application.
Fig. 3 is a diagram of possible pixel gray scale data provided in an embodiment of the present application.
Fig. 4 is a gray scale luminance diagram of a pixel after being repaired according to an embodiment of the present application.
Fig. 5 is a schematic view of a repair area according to an embodiment of the present application.
Fig. 6 is a schematic diagram of a defect area according to an embodiment of the present application.
Fig. 7 is a schematic view of a display panel frame according to an embodiment of the present disclosure.
Fig. 8 is a schematic top view of a display panel according to an embodiment of the present disclosure.
Fig. 9 is a schematic top view of an electronic device according to an embodiment of the present disclosure.
Fig. 10 is a schematic diagram of an electronic device framework according to an embodiment of the present application.
The reference numbers illustrate: the display 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 technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
Fig. 1 shows a schematic flow chart of a color spot repairing method according to an embodiment of the present application, where fig. 1 is a schematic flow chart of the color spot repairing method. The color spot repairing method comprises steps S101, S102, S103, S104, S105, S106, S107, S108, S109 and S110, and the steps S101, S102, S103, S104, S105, S106, S107, S108, S109 and S110 are described in detail as follows.
S101, acquiring a frame image of the display panel;
s102, analyzing according to the frame image of the display panel to obtain first pixel gray data;
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 according to the compensated frame image of the display panel to obtain second pixel gray data;
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.
In general, 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. According to the color of the pixel, the first pixel gray data or the second pixel gray data of the frame image can be obtained through analysis and calculation.
Referring to fig. 2-4 together, fig. 2 is a diagram illustrating ideal pixel data according to an embodiment of the present disclosure; FIG. 3 is a diagram of possible pixel gray scale data provided by an embodiment of the present application; fig. 4 is a gray scale luminance diagram of a pixel after being repaired according to an embodiment of the present application. As shown in fig. 2, in an ideal case, the gray scale brightness values of all the pixels are 50, and no color spot occurs. As shown in fig. 3, in real-life, some pixels may be brighter or darker than the surrounding area. As shown in fig. 4, even after the color spots on the display surface are repaired by the prior art, there may still exist some "white pill", "white spot" or "black spot", "black fog" pixels, that is, the brightness of the pixel is higher than that of the surrounding pixels, or the brightness of the pixel is lower than that of the surrounding pixels.
In this embodiment, each pixel is 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 changing a data voltage charged to the pixel, thereby changing a gray luminance of the pixel. Similarly, compensating the defective pixel according to the second compensation value means changing the data voltage charged in the defective pixel, thereby changing the gray brightness of the pixel. It is understood that each pixel corresponds to the data voltage, the first compensation value, or the second compensation value in the frame image.
In this embodiment, the resolution of the display panel is 3840 × 2160, and the number of the repair regions is 480 × 270. It is understood that, in other possible embodiments, the resolution size of the display panel and the preset repair area may also be other sizes, for example, the resolution of the display panel may also be 1980 × 1060, 2560 × 1440, the repair area may also be 1 × 1 pixel, 6 × 6 pixel, and the like, which is not limited in this application. It is understood that when the repair area is 1 × 1 pixel, 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 boundary of the repair area, the color spot problem may still exist after the pixel in the repair area is repaired according to the first compensation value. It can be understood that, in the 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 and repair are obtained, and the display effect is improved.
In a possible implementation manner, the calculating a first compensation value of each pixel on the display panel according to the first pixel grayscale data specifically includes:
the repair area is formed by enclosing 4 pixel nodes;
acquiring a node compensation value corresponding to the pixel node according to a corresponding compensation lookup table;
and calculating a compensation value of each pixel in the repair area according to the coordinates of the 4 pixel nodes and the node compensation value to serve as the first compensation value.
Specifically, the range in which the plurality of repair regions are spliced together covers the entire display panel. For example, please refer to fig. 5, in which fig. 5 is a schematic diagram of a repair area according to an embodiment of the present disclosure. The repair area is a rectangular area with 8-by-8 pixels, and pixels P corresponding to 4 corners of the rectangular area1、P2、P3、P4The number of the pixel nodes is 4 in the repair area.
The compensation lookup table is a data table generated by the repair module according to the gray data of the first pixel and the analysis and calculation of the area size, wherein each pixel on the display panel corresponds to a compensation value in the compensation lookup table. In this embodiment, a calculation formula for calculating the compensation value of each pixel in the repair area from the coordinates of the 4 pixel nodes and the node compensation value is as follows:
E5＝((Y5-Y1)*E4+(Y4-Y5)*E1)/(Y4-Y1)
E6＝((Y6-Y2)*E3+(Y3-Y6)*E2)/(Y3-Y2)
EP＝((X6-XP)*E5+(XP-X5)*E6)/(X6-X5)
wherein E isPSaid first compensation value, X, representing a pixel point PPThe abscissa representing the pixel point P; (X)5，Y5)、(X6，Y6) Respectively represent pixel points P5、P6And the horizontal and vertical coordinates of (1), and a pixel point P5、P6The ordinate of the pixel point P is the same as the ordinate of the pixel point P; y is1、Y2、Y3、Y4Respectively represent pixel points P1、P2、P3、P4The ordinate of (a); e1、E2、E3、E4、E5、E6Respectively represent pixel points P1、P2、P3、P4、P5、P6The compensation value of (2).
It can be understood that, in this embodiment, after the first compensation value of each pixel is calculated according to the repair area, each pixel on the display panel is compensated to implement preliminary color spot repair.
In a possible implementation manner, the calculating a second compensation value of the defective pixel according to the second pixel gray scale data specifically includes:
determining a defective area according to the position and the size of the defective pixel in the corresponding repair area, wherein the defective area is formed by enclosing 4 defective pixel nodes;
and calculating a compensation value of each pixel in the defect area according to the weighting 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 serve as the second compensation value.
It should be noted that when the size of the defective pixel is small, that is, the size of the defective pixel is smaller than the size of the repair area, the phenomenon of "white pill", "white dot" or "black dot", "black fog" may still occur when each pixel on the display panel is compensated and repaired by the first compensation value.
Specifically, please refer to fig. 6, in which fig. 6 is a schematic diagram of a defect area according to an embodiment of the present disclosure. In this embodiment, the defective pixel is small, and the defective region determined according to the position and size of the defective pixel in the corresponding repair region is a 6 × 6 pixel region and is smaller than an 8 × 8 pixel region of the repair region.
In the present embodiment, the calculation formula based on the weighting of the maximum value and the average value of the pixel gray-scale luminance in the defective region is as follows:
in this embodiment, the calculation formula according to the weighting of the gray-scale luminance value of the individual pixel in the defect region and the average value is as follows:
8 x 8 pixel gray level luminance average
Figure BDA0003378449340000071
Respective compensation values of 8 by 8 pixels
Figure BDA0003378449340000072
Figure BDA0003378449340000073
Figure BDA0003378449340000074
Figure BDA0003378449340000081
Final weighted compensation value:
Figure BDA0003378449340000082
wherein, 8 by 8 pixel regions are respectively recorded as: p1,P2,P3……P64。f1，f2，f3……f64Each represents the weight of 8 × 8 — 64 pixels. The 8 by 8 pixel area raw brightness is recorded as: p1Point brightness ═ L1,P2Point brightness ═ L2,P3Point brightness ═ L3……P64Point brightness ═ L64。
Since the compensation is performed on each pixel in the repair area at the same time as the size of the repair area, 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 enlarged, that is, enlarged by the ratio of (6 × 6)/(8 × 8). For example, if the compensation value of a certain pixel in the defect region is "+ 4", the second compensation value of the pixel is finally (+4 × 6)/(8 × 8) + 2.25.
It will be appreciated that in other possible embodiments, when the sizes of the repair area and the defect area are changed, the corresponding magnification ratio is also changed.
In a possible implementation, the calculating the second compensation value of the defective pixel according to the second pixel gray scale data specifically includes:
marking the repair area where the defective pixel is located;
and acquiring the compensation value of each pixel in the marked repair area according to the corresponding compensation lookup table to serve as the second compensation value.
It should be noted that, when the defective pixel is located at the boundary of the repair area, each pixel on the display panel is compensated and repaired by the first compensation value, and there is a possibility that a "white pill", "white dot" or a "black fog" phenomenon occurs in two adjacent repair areas of the defective pixel.
In this embodiment, each pixel in the repair area marked may be regarded as a defect area, that is, the size of the defect area is 1 × 1 pixel. It is understood that if the defective pixel is located at the intersection of the repair regions, both of the repair regions 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 area corresponding to the corresponding compensation lookup table is the repair area.
It can be understood that the compensation values in the two tables are different, and the repair area is smaller than the display panel, so that the compensation value calculated by the repair module according to the area is more accurate, the defective pixel in the repair area is compensated better, and the display effect is improved.
In one possible implementation, the first pixel gray scale data includes a plurality of gray scale frames, each gray scale frame has a different gray scale, and each gray scale frame has a corresponding compensation lookup table.
In this embodiment, the gray scales of the gray scale pictures are different, which means that the brightness of the gray scales of the pixels obtained according to the frame image analysis is different, and the compensation lookup tables obtained by the repair module according to the first pixel data are also different, so that the finally obtained first compensation values are also different. When the number of the gray scale frames included in the first pixel gray scale data is three or more, the first compensation value of another gray scale frame can be calculated according to the first compensation values of two gray scale frames.
Specifically, the calculation formula of the first compensation value of the grayscale image is as follows:
PC＝((G1-G3)*PB+(G3-G2)*PA)/(G1-G2)
wherein G is1、G2、G3Respectively the gray scale values, P, of three different gray scale picturesA、PB、PCAre each G1、G2、G3The first compensation value at a gray level.
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 calculation company through the second compensation values of two gray scale frames, which is not described herein again.
Fig. 7 is a schematic view of a display panel 1 according to an embodiment of the present disclosure, and fig. 7 is a schematic view of a display panel frame according to an embodiment of the present disclosure. The display panel 1 comprises a repair module 11, a flash memory module 12 and pixels 13; the repair module 11 comprises a receiving submodule 111, an analyzing submodule 112 and a processing submodule 113; the receiving sub-module 111 is configured to obtain a frame image of the display panel 1; the analysis submodule 112 is configured to obtain first pixel grayscale data according to the frame image analysis of the display panel 1; the processing submodule 113 is configured to preset a plurality of repair areas; the processing sub-module 113 is further configured to calculate a first compensation value for each pixel 13 in the repair area according to the first pixel gray scale 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 grayscale data; the processing sub-module 113 is further configured to determine a defective pixel in the defective area according to the second pixel grayscale data; the processing sub-module 113 is further configured to calculate a second compensation value for each pixel 13 in the defect area according to the second pixel gray scale data; the flash memory module 12 is further configured to compensate the defective pixel according to the second compensation value.
Specifically, please refer to the color spot repairing method described above for the frame image, the first pixel gray scale data, the second pixel gray scale data, the first compensation value, the second pixel compensation value, the defect area, and the like of the display panel 1, which is not described herein again.
In this embodiment, the receiving sub-module 111 is configured to acquire a frame image of the display panel 1, and may be configured to transmit the frame image to the receiving sub-module 111 after being captured by a Charge-coupled Device (CCD) image sensor, or may be configured to transmit other electronic components to the receiving sub-module 111, which is not limited in this application.
In this embodiment, the repair module 11 is a De-Mura repair device, and the Flash memory module 12 is a Flash memory. It is understood that, in other possible embodiments, the repair module 11 and the flash memory module 12 may also be other devices, and the application is not limited thereto.
In a possible implementation manner, please refer to fig. 8, and fig. 8 is a schematic top view of a display panel according to an implementation manner of the present application. The display panel 1 further comprises a display area 14 and a non-display area 15, wherein the display area 14 is used for displaying pictures, and the non-display area 15 is arranged around 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 is understood that, in the present embodiment, the repair module 11 and the flash memory module 12 are disposed in the non-display area 15, so as to prevent the repair module 11 and the flash memory module 12 from affecting the normal operation of the pixels 13 in the display area 14.
In one possible embodiment, the repair area is formed by enclosing 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 the coordinates of the 4 pixel nodes and the node 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 sub-module 113 is configured to determine a defective area according to the position and size of the defective pixel in the corresponding repair area, where the defective area is defined by 4 defective pixel nodes; the processing sub-module 113 is further configured to calculate a compensation value of each pixel in the defect region according to the weighting of the maximum value and the average value of the gray-scale brightness of the pixel in the defect region, and amplify the compensation value according to the ratio of the defect region to the repair region to serve as the second compensation value; alternatively, the first and second electrodes may be,
the processing submodule 113 is configured to mark the repair area where the defective pixel is located; the processing sub-module 113 is further configured to obtain a compensation value of each pixel in the marked repair area according to a corresponding compensation lookup table, as the second compensation value; the flash memory module 12 is used for storing 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 image is good.
Fig. 9 is a schematic top view of an electronic device 2 according to an embodiment of the present application, and fig. 9 is a schematic top view of the electronic device. 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, please refer to the above description for the display panel 1, which is not described herein again.
Fig. 10 is a drawing showing an electronic device 2, and fig. 10 is a schematic diagram of an electronic device framework according to an embodiment of the present application. The electronic device 2 comprises a processor 22 and a memory 23, wherein the memory 23 stores program codes for executing the color spot repairing method, and the processor 22 is used for reading and calling the codes stored in the memory 23.
Specifically, please refer to the above description for the color spot repairing method, which is not described herein again. 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 wearable portable device, a notebook computer, and the like, and 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) server, and the like, and the embodiment of the present application is not limited thereto.
The present application also provides a computer readable medium storing a computer readable program, which when read and executed by the processor 22, performs the color spot repairing method as described above.
Specifically, please refer to the above description for the color spot repairing method, which is not described herein again. Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: a flash disk, a Read-Only Memory 23 (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, etc.
The principle and the embodiment of the present application are explained herein by applying specific examples, and the above description of the embodiment is only used to help understand the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. A color spot repairing method is applied to a display panel and is characterized by comprising the following steps:
acquiring a frame image of the display panel;
analyzing according to the frame image of the display panel to obtain first pixel gray data;
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 according to 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.
2. The color spot repairing method according to claim 1, wherein said calculating a first compensation value for each pixel on said display panel according to said first pixel gray scale data specifically comprises:
the repair area is formed by enclosing 4 pixel nodes; acquiring a node compensation value corresponding to the pixel node according to a corresponding compensation lookup table;
and calculating a compensation value of each pixel in the repair area according to the coordinates of the 4 pixel nodes and the node compensation value to serve as the first compensation value.
3. The color spot repairing method according to claim 1, wherein said calculating a second compensation value of the defective pixel according to the second pixel gray data specifically comprises:
determining a defective area according to the position and the size of the defective pixel in the corresponding repair area, wherein the defective area is formed by enclosing 4 defective pixel nodes;
and calculating a compensation value of each pixel in the defect area according to the weighting 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 serve as the second compensation value.
4. The color spot repairing method according to claim 1, wherein said calculating a second compensation value of the defective pixel according to the second pixel gray data specifically comprises:
marking the repair area where the defective pixel is located;
and acquiring the compensation value of each pixel in the marked repair area according to the corresponding compensation lookup table to serve as the second compensation value.
5. The color spot repairing method according to claim 1, wherein the first pixel gray data comprises a plurality of gray frames, each gray frame has a different gray level, and each gray frame has a corresponding compensation lookup table.
6. A 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 around the display area; characterized in that, the display panel still includes:
the repair module comprises a receiving submodule, an analysis submodule and a processing submodule;
a flash memory module; and
a pixel;
the receiving submodule is used for acquiring a frame image of the display panel;
the analysis submodule is used for analyzing and obtaining first pixel gray data according to the frame image 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 used for compensating each pixel in the repair area according to the first compensation value;
the receiving submodule is further 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 used for calculating a second compensation value of the defective pixel according to the second pixel gray data;
the processing sub-module is further used for compensating the defective pixel according to the second compensation value;
the repair module is electrically connected with the flash memory module and is arranged in the non-display area.
7. The display panel of claim 6, wherein the repair area is formed by 4 pixel nodes;
the processing sub-module is further used for acquiring a node compensation value corresponding to the pixel node according to the corresponding compensation lookup table;
the processing submodule is further used for calculating a compensation value of each pixel in the repair area according to the coordinates of the 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.
8. The display panel of claim 7, wherein the processing sub-module is configured to determine a defect region according to a position and a size of the defective pixel in the corresponding repair region, and the defect region is defined by 4 defective pixel nodes;
the processing submodule is further used for calculating a compensation value of each pixel in the defect area according to the weighting of the maximum value and the average value of the gray level 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 serve as the second compensation value; alternatively, the first and second electrodes may be,
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 the 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.
9. An electronic device, comprising a housing and a display panel according to any one of claims 6-8, wherein the housing is used for bearing and mounting the display panel.
10. A computer readable medium storing a computer readable program, wherein the computer readable program is read by a processor and executed to perform the color spot repairing method according to any one of claims 1 to 5.
CN202111425971.7A 2021-11-26 2021-11-26 Stain repairing method, display panel, electronic device and computer-readable storage medium Active CN114120876B (en)

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