CN113990267A - Pixel brightness compensation method and device, storage medium and display panel - Google Patents
Pixel brightness compensation method and device, storage medium and display panel Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- 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]
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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
Abstract
The invention discloses a method and a device for compensating the brightness of a pixel, a storage medium and a display panel. The invention divides the display panel into a plurality of first setting areas, and performs the first brightness compensation on all pixels in the display panel based on the compensation rule that the first setting areas are a basic compensation unit; determining at least one basic compensation unit with the largest difference between the brightness value of the pixel subjected to brightness compensation and the target brightness value of the pixel in the display panel; and determining a second setting area according to the at least one basic compensation unit, and performing second brightness compensation on the at least one basic compensation unit based on a compensation rule that the second setting area is an enhanced compensation unit, so as to perform brightness compensation on the micro mura without increasing the calculation time of the demura adjustment parameter.
Description
Technical Field
The present invention relates to the field of display panel technologies, and in particular, to a method and an apparatus for compensating luminance of a pixel, a storage medium, and a display panel.
Background
Since Liquid Crystal Displays (LCDs) have the advantages of low radiation, small size, and low power consumption, they are gradually replacing conventional Cathode Ray Tube (CRT) displays and are widely used in information products such as notebook computers, Personal Digital Assistants (PDAs), flat panel televisions, or mobile phones.
In both LCD and OLED, there is inevitably a problem of brightness uniformity during the manufacturing process, resulting in the generation of brightness unevenness (mura). In particular, as the size of the display panel is increased, the mura problem becomes more normal, and therefore the demura technology is developed. In order to save cost of the control board (Tcon), only demura adjustment of 8 × 8 or 16 × 16 pixel areas is typically performed. This way the calculation time of the demura tuning parameters can be saved.
However, the conventional technique has a drawback in that if the pixel area is small in mura, the calculation time of the demura adjustment parameter is increased if the pixel area is small in size.
Disclosure of Invention
An object of the present invention is to provide a method and an apparatus for compensating luminance of a pixel, a storage medium and a display panel, which are used to effectively solve the problem that when there is a small mura in a pixel area in the prior art, if a smaller pixel area is used for performing the demura, the calculation time of the demura adjustment parameter is increased.
According to an aspect of the present invention, there is provided a luminance compensation method of a pixel, the method including: dividing the display panel into a plurality of first setting areas, and performing brightness compensation on all pixels in the display panel based on a compensation rule that the first setting areas are one basic compensation unit; determining at least one basic compensation unit with the largest difference between the brightness value of the pixel subjected to brightness compensation and the target brightness value of the pixel in the display panel; and determining a second setting area according to the at least one basic compensation unit, and performing brightness compensation on the at least one basic compensation unit based on a compensation rule that the second setting area is one enhancement compensation unit; wherein the area of the first setting region is larger than the area of the second setting region.
Further, the dividing the display panel into a plurality of first setting regions and performing brightness compensation on all pixels in the display panel based on a compensation rule that the first setting regions are one basic compensation unit includes: calculating the number of the basic compensation units according to the area of the first set area and the area of a light emitting area of the display panel; acquiring first compensation data corresponding to the number of the basic compensation units; and performing brightness compensation on all pixels in the display panel according to the first compensation data.
Further, the determining at least one basic compensation unit having a largest difference between the brightness value of the pixel subjected to brightness compensation and the target brightness value of the pixel in the display panel includes: defining a judgment rule; and determining at least one basic compensation unit with the maximum difference between the brightness value of the pixel after brightness compensation and the target brightness value of the pixel according to the judgment rule.
Further, the determining at least one basic compensation unit having a largest difference between the brightness value of the pixel subjected to brightness compensation and the target brightness value of the pixel in the display panel further includes: and storing the position information of each basic compensation unit in the display panel, wherein the difference between the brightness value of the pixel after brightness compensation and the target brightness value of the pixel is maximum.
Further, the determining a second setting region according to the at least one basic compensation unit and performing brightness compensation on the at least one basic compensation unit based on a compensation rule that the second setting region is an enhanced compensation unit includes: defining a second setting area as an enhancement compensation unit, wherein the area of the second setting area is smaller than that of the first setting area; acquiring second compensation data corresponding to the number of the at least one enhancement compensation unit; and performing brightness compensation on the at least one enhancement compensation unit according to the second compensation data.
Further, the compensating the at least one base compensation unit according to the second compensation data comprises: and processing the second compensation data of the second set area through a Gaussian matrix.
Further, the first compensation data and the second compensation data are both stored in the display panel.
According to another aspect of the present invention, there is provided an apparatus for compensating luminance of a pixel, including: a first compensation unit for dividing the display panel into a plurality of first setting regions and performing brightness compensation on all pixels in the display panel based on a compensation rule that the first setting regions are one basic compensation unit; the compensation determining unit is used for determining at least one basic compensation unit with the largest difference value between the brightness value of the pixel subjected to brightness compensation and the target brightness value of the pixel in the display panel; the second compensation unit is used for determining a second set area according to the at least one basic compensation unit and performing brightness compensation on the at least one basic compensation unit on the basis of a compensation rule that the second set area is an enhanced compensation unit; wherein the area of the first setting region is larger than the area of the second setting region.
According to another aspect of the present invention, there is provided a storage medium having stored therein a plurality of instructions adapted to be loaded by a processor to perform a method of brightness compensation for any of the pixels.
According to another aspect of the present invention, there is provided a display panel comprising the brightness compensation device of the pixel.
The invention has the advantages that the display panel is divided into a plurality of first setting areas, and the first-time brightness compensation is carried out on all pixels in the display panel on the basis of the compensation rule that the first setting areas are one basic compensation unit, so that at least one basic compensation unit with the largest difference value between the brightness value of the pixels subjected to the brightness compensation and the target brightness value of the pixels in the display panel is determined; and determining a second setting area according to the at least one basic compensation unit, and performing second brightness compensation on the at least one basic compensation unit based on a compensation rule that the second setting area is an enhanced compensation unit, so as to perform brightness compensation on the micro mura without increasing the calculation time of the demura adjustment parameter.
Drawings
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 flowchart illustrating steps of a method for compensating luminance of a pixel according to an embodiment of the invention.
Fig. 2 is a schematic diagram of a display panel dividing a plurality of first setting areas according to an embodiment of the invention.
Fig. 3 is a flowchart illustrating steps of a method for compensating luminance of a pixel according to a second embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a luminance compensation apparatus for a pixel according to a third embodiment of 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.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 is a flowchart illustrating steps of a method for compensating luminance of a pixel according to an embodiment of the present invention.
S110: the display panel is divided into a plurality of first setting regions, and brightness compensation is performed on all pixels in the display panel based on a compensation rule that the first setting regions are one basic compensation unit.
Illustratively, the size of the area of the first defined area is determined by the number of pixels, including but not limited to 8 × 8 and 16 × 16, and the size of the area of the first defined area is 8 × 8, that is, 8 × 8 pixels in the first defined area. The display panel is divided into a plurality of first setting regions, the area size of the first setting regions is 8 × 8, and if the resolution of the display panel is 3840 × 2160, the number of the first setting regions is 480 × 270.
S120: and determining at least one basic compensation unit with the largest difference between the brightness value of the pixel subjected to brightness compensation and the target brightness value of the pixel in the display panel.
Illustratively, the target brightness value includes a brightness value not limited to normal light emission of a pixel in a display panel, and at least one basic compensation unit having a maximum difference between the brightness value of the pixel and the target brightness value of the pixel is acquired after brightness compensation in the display panel. Further, the number of the basic compensation units can be set by a user, and can also be automatically set by a system of the display panel according to actual conditions.
S130: and determining a second set area according to the at least one basic compensation unit, and performing brightness compensation on the at least one basic compensation unit based on a compensation rule that the second set area is an enhanced compensation unit.
Illustratively, the area of the first setting region is larger than the area of the second setting region. Referring to fig. 2, fig. 2 is a schematic diagram illustrating a plurality of first setting regions. It should be noted that, the difference between the luminance value of the pixel after the luminance compensation of the basic compensation unit and the target luminance value of the pixel is the largest, and it can be understood that, in one first setting region (for example, 8 × 8 pixel region), the sum of the differences between the luminance values of all pixels and the target luminance values of all pixels is obtained, the average value of the differences between the luminance value of the pixel and the target luminance value of the pixel can be calculated according to the sum of the differences, and is used as the total average value of the differences of the first setting region, and the total average value of the differences of all first setting regions is compared to obtain the first setting region with the largest total average value of the differences. For example, the difference between the luminance value of 5 pixels in the 8 × 8 pixel region and the target luminance value of the pixel is obtained, then the 5 differences are added, and then divided by 5 to obtain the average value of the differences.
It is noted that "at least one," when used with a list of items, herein means that different combinations of one or more of the listed items may be used and that only one of each item in the list may be required. For example, "at least one of item a, item B, and item C" can include, but is not limited to, item a or item a and item B. The example can also include item a, item B, and item C, or item B and item C. In other examples, "at least one" may be, for example, without limitation, two items a, one item B and ten items C, four items B and seven items C, or some other suitable combination.
In the first embodiment of the present invention, the display panel is divided into a plurality of first setting areas, and based on a compensation rule that the first setting area is a basic compensation unit, luminance compensation is performed on all pixels in the display panel for the first time, and at least one basic compensation unit that has the largest difference between a luminance value of a pixel after luminance compensation and a target luminance value of the pixel in the display panel is determined; and determining a second setting area according to the at least one basic compensation unit, and performing second brightness compensation on the at least one basic compensation unit based on a compensation rule that the second setting area is an enhanced compensation unit, so as to perform brightness compensation on the micro mura without increasing the calculation time of the demura adjustment parameter.
Fig. 3 is a flowchart illustrating steps of a method for compensating luminance of a pixel according to a second embodiment of the present invention.
Based on the brightness compensation method for the pixel described in the first embodiment, the brightness compensation method for the pixel provided in the second embodiment will be further described herein. The step S110 may include steps S210 to S230 of the second embodiment, the step S120 may include steps S240 to S250 of the second embodiment, and the step S130 may include steps S260 to S280 of the second embodiment. The term meaning of the second embodiment is the same as that of the first embodiment, and specific implementation details can refer to the description of the first embodiment.
Wherein, step S210: and calculating the number of the basic compensation units according to the area of the first set area and the area of the light emitting area of the display panel.
Illustratively, the size of the area of the first defined area is determined according to the number of pixels, such as, but not limited to, 8 × 8 and 16 × 16, and the size of the area of the first defined area is 8 × 8, that is, 8 × 8 pixels in the first defined area. The display panel is divided into a plurality of first setting regions, the area size of the first setting regions is 8 × 8, and if the resolution of the display panel is 3840 × 2160, the number of the first setting regions is 480 × 270.
Step S220: first compensation data corresponding to the number of the basic compensation units is acquired.
Illustratively, the basic compensation units correspond to the first setting regions one by one, and the display panel stores first compensation data corresponding to the number of the basic compensation units, and the first compensation data is data-compressed by a Look-Up Table (Look-Up-Table).
Step S230: and performing brightness compensation on all pixels in the display panel according to the first compensation data.
For example, the first compensation data may be obtained by gray scale compensation, for example, but not limited to, the original gray scale of a reference pixel of the image to be displayed is 25, and the preset gray scale is 255, and when the image to be displayed is compensated, the 25 gray scale of the reference pixel needs to be compensated by a brightness compensation coefficient determined by the 255 gray scale. Assuming that the reference pixel corresponds to a darker area of the display panel, if the mura phenomenon on the display panel is to be eliminated, the display gray scale of the compensated reference pixel is 40.
Step S240: and determining at least one basic compensation unit with the maximum difference between the brightness value of the pixel after brightness compensation and the target brightness value of the pixel according to the judgment rule.
Illustratively, the target brightness value includes a brightness value not limited to a normal light emission of a pixel in a display panel, and after performing brightness compensation in the display panel, a determination rule is defined to obtain at least one basic compensation unit having a maximum difference between the brightness value of the pixel and the target brightness value of the pixel. Further, the number of the basic compensation units can be set by a user, and can also be automatically set by a system of the display panel according to actual conditions. The decision rule may be controlled by a program, which is preset by a user.
Step S250: storing position information of each basic compensation unit in the display panel, where the difference between the luminance value of the pixel and the target luminance value of the pixel is maximum.
Illustratively, referring to fig. 2, the resolution of the display panel is 3840 × 2160, the number of the first set areas is 480 × 270, and the position information of the basic compensation unit in the display panel is composed of, for example, two coordinate points, where the first coordinate point is 1 to 480 and the second coordinate point is 1 to 270.
Step S260: a second setting area is defined.
For example, when the mura region (i.e., the region where the luminance value of the pixel is different from the target luminance value of the pixel) is smaller than the first setting region 8 × 8, the compensation effect of the compensation unit based on the first setting region is not good, and therefore the second setting region, for example, but not limited to, the second setting region is set to 5 × 5 or 6 × 6. The number of the second setting regions is the same as the number of the basic compensation units having the largest difference between the luminance value of the pixel after the luminance compensation and the target luminance value of the pixel.
Step S270: second compensation data corresponding to the number of the at least one enhancement compensation unit is acquired.
Illustratively, the second setting region serves as the enhancement compensation unit, the second compensation data is used for performing brightness compensation on pixels of the second setting region, and the first compensation data is used for performing brightness compensation on pixels of the first setting region. Further, the second compensation data is different from the first compensation data, and the second compensation data may also be the first compensation data subset.
Step S280: and performing brightness compensation on the at least one enhancement compensation unit according to the second compensation data.
For example, the second compensation data of the second setting region may be processed by a gaussian matrix.
The embodiment of the invention divides the display panel into a plurality of first setting areas, and performs the first brightness compensation on all pixels in the display panel based on the compensation rule that the first setting areas are a basic compensation unit; determining at least one basic compensation unit with the largest difference between the brightness value of the pixel subjected to brightness compensation and the target brightness value of the pixel in the display panel; and determining a second setting area according to the at least one basic compensation unit, and performing second brightness compensation on the at least one basic compensation unit based on a compensation rule that the second setting area is an enhanced compensation unit, so as to perform brightness compensation on the micro mura without increasing the calculation time of the demura adjustment parameter.
In order to better implement the brightness compensation method for the pixel provided by the embodiment of the present application, the embodiment of the present application further provides a brightness compensation device for the pixel. Wherein the meaning of the noun is the same as that in the above-mentioned brightness compensation method of the pixel, and the details of the implementation can refer to the description in the method embodiment.
Fig. 3 is a schematic structural diagram of a luminance compensation apparatus for a pixel according to a third embodiment of the present invention. The brightness compensation device includes: a first compensation unit 10, a compensation determination unit 20 and a second compensation unit 30.
The first compensation unit 10 is configured to divide the display panel into a plurality of first setting regions, and perform brightness compensation on all pixels in the display panel based on a compensation rule that the first setting regions are one basic compensation unit. Illustratively, the size of the area of the first defined area is determined according to the number of pixels, such as, but not limited to, 8 × 8 and 16 × 16, and the size of the area of the first defined area is 8 × 8 pixels in the first defined area. The display panel is divided into a plurality of first setting regions, the area size of the first setting regions is 8 × 8, and if the resolution of the display panel is 3840 × 2160, the number of the first setting regions is 480 × 270.
The compensation determining unit 20 is configured to determine at least one basic compensation unit having a largest difference between a luminance value of a pixel subjected to luminance compensation and a target luminance value of the pixel in the display panel. Illustratively, the target brightness value includes a brightness value not limited to normal light emission of a pixel in a display panel, and at least one basic compensation unit having a maximum difference between the brightness value of the pixel and the target brightness value of the pixel is acquired after brightness compensation in the display panel. Further, the number of the basic compensation units can be set by a user, and can also be automatically set by a system of the display panel according to actual conditions.
The second compensation unit 30 is configured to determine second setting regions according to the at least one basic compensation unit, and perform brightness compensation on the at least one basic compensation unit based on a compensation rule that each of the second setting regions is an enhanced compensation unit. Illustratively, the area of the first setting region is larger than the area of the second setting region. Referring to fig. 2, in fig. 2, for the purpose of dividing the basic compensation unit into a plurality of first setting regions, the difference between the luminance value of the pixel after the luminance compensation of the basic compensation unit and the target luminance value of the pixel is the largest, it can be understood that, in one first setting region (for example, 8 × 8 pixel region), the sum of the differences between the luminance values of all pixels and the target luminance values of all pixels is obtained, the average value of the differences between the luminance values of the pixels and the target luminance values of the pixels can be calculated according to the sum of the differences, and is used as the total average value of the differences of the first setting region, and the total average value of the differences of all first setting regions is compared to obtain the first setting region with the largest total average value of the differences. For example, the difference between the luminance value of 5 pixels in the 8 × 8 pixel region and the target luminance value of the pixel is obtained, then the 5 differences are added, and then divided by 5 to obtain the average value of the differences.
The embodiment of the invention divides the display panel into a plurality of first setting areas, and performs the first brightness compensation on all pixels in the display panel based on the compensation rule that the first setting areas are a basic compensation unit; determining at least one basic compensation unit with the largest difference between the brightness value of the pixel subjected to brightness compensation and the target brightness value of the pixel in the display panel; and determining a second setting area according to the at least one basic compensation unit, and performing second brightness compensation on the at least one basic compensation unit based on a compensation rule that the second setting area is an enhanced compensation unit, so as to perform brightness compensation on the micro mura without increasing the calculation time of the demura adjustment parameter.
It will be understood by those skilled in the art that all or part of the steps of the method described in the above embodiments may be performed by instructions or by instructions controlling associated hardware, and the instructions may be stored in a computer readable storage medium and loaded and executed by a processor.
To this end, embodiments of the present application provide a computer-readable storage medium, in which a plurality of computer programs are stored, where the computer programs can be loaded by a processor to execute the steps in a method for compensating brightness of a pixel provided in any embodiment of the present application. For example, the computer program may perform the steps of:
dividing the display panel into a plurality of first setting areas, and performing brightness compensation on all pixels in the display panel based on a compensation rule that the first setting areas are one basic compensation unit;
determining at least one basic compensation unit with the largest difference between the brightness value of the pixel subjected to brightness compensation and the target brightness value of the pixel in the display panel; and
determining a second setting area according to the at least one basic compensation unit, and performing brightness compensation on the at least one basic compensation unit based on a compensation rule that the second setting area is an enhanced compensation unit; wherein the area of the first setting region is larger than the area of the second setting region.
The above operations can be implemented in the foregoing embodiments, and are not described in detail herein. Wherein the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
Since the instructions stored in the computer-readable storage medium can execute the steps in the method for compensating the brightness of the pixel provided in any embodiment of the present application, the advantageous effects that can be achieved by the method for compensating the brightness of the pixel provided in any embodiment of the present application can be achieved, for details, see the foregoing embodiments, and are not described herein again.
In addition, in an embodiment of the present application, a display panel is further provided. The display panel comprises the brightness compensation device of the embodiment.
The display panel may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. A method for compensating brightness of a pixel, which is used for a display panel, is characterized by comprising the following steps:
dividing the display panel into a plurality of first setting areas, and performing brightness compensation on all pixels in the display panel based on a compensation rule that the first setting areas are one basic compensation unit;
determining at least one basic compensation unit with the largest difference between the brightness value of the pixel subjected to brightness compensation and the target brightness value of the pixel in the display panel; and
determining a second setting area according to the at least one basic compensation unit, and performing brightness compensation on the at least one basic compensation unit based on a compensation rule that the second setting area is an enhanced compensation unit; wherein the area of the first setting region is larger than the area of the second setting region.
2. The method of claim 1, wherein the dividing the display panel into a plurality of first setting regions and performing the brightness compensation on all pixels in the display panel based on the compensation rule that the first setting regions are a basic compensation unit comprises:
calculating the number of the basic compensation units according to the area of the first set area and the area of a light emitting area of the display panel;
acquiring first compensation data corresponding to the number of the basic compensation units; and
and performing brightness compensation on all pixels in the display panel according to the first compensation data.
3. The method of claim 2, wherein the determining at least one basic compensation unit having a maximum difference between a luminance value of the pixel subjected to the luminance compensation and a target luminance value of the pixel in the display panel comprises:
defining a judgment rule;
and determining at least one basic compensation unit with the maximum difference between the brightness value of the pixel after brightness compensation and the target brightness value of the pixel according to the judgment rule.
4. The method of claim 3, wherein the determining at least one basic compensation unit having a maximum difference between the luminance value of the pixel subjected to the luminance compensation and the target luminance value of the pixel in the display panel further comprises:
and storing the position information of each basic compensation unit in the display panel, wherein the difference between the brightness value of the pixel after brightness compensation and the target brightness value of the pixel is maximum.
5. The method of claim 3, wherein the determining a second setting region according to the at least one basic compensation unit and performing the brightness compensation on the at least one basic compensation unit based on the compensation rule that the second setting region is an enhanced compensation unit comprises:
defining a second setting area as an enhancement compensation unit, wherein the area of the second setting area is smaller than that of the first setting area;
acquiring second compensation data corresponding to the number of the at least one enhancement compensation unit; and
and performing brightness compensation on the at least one enhancement compensation unit according to the second compensation data.
6. The method of claim 5, wherein the compensating the at least one basic compensation unit according to the second compensation data comprises:
and processing the second compensation data of the second set area through a Gaussian matrix.
7. The method of claim 6, wherein the first compensation data and the second compensation data are stored in the display panel.
8. An apparatus for compensating brightness of a pixel for a display panel, comprising:
a first compensation unit for dividing the display panel into a plurality of first setting regions and performing brightness compensation on all pixels in the display panel based on a compensation rule that the first setting regions are one basic compensation unit;
the compensation determining unit is used for determining at least one basic compensation unit with the largest difference value between the brightness value of the pixel subjected to brightness compensation and the target brightness value of the pixel in the display panel; and
a second compensation unit, configured to determine a second setting region according to the at least one basic compensation unit, and perform brightness compensation on the at least one basic compensation unit based on a compensation rule that the second setting region is an enhancement compensation unit; wherein the area of the first setting region is larger than the area of the second setting region.
9. A storage medium having stored therein a plurality of instructions adapted to be loaded by a processor to perform a method of brightness compensation of a pixel according to any one of claims 1 to 7.
10. A display panel comprising the luminance compensation device of the pixel as claimed in claim 8.
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| CN202111288852.1A CN113990267B (en) | 2021-11-02 | 2021-11-02 | Pixel brightness compensation method and device, storage medium and display panel |
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| CN202111288852.1A CN113990267B (en) | 2021-11-02 | 2021-11-02 | Pixel brightness compensation method and device, storage medium and display panel |
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| CN113990267B CN113990267B (en) | 2023-01-24 |
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