CN115083366B - Compensation method and compensation device for mura phenomenon of display panel - Google Patents

Compensation method and compensation device for mura phenomenon of display panel Download PDF

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Publication number
CN115083366B
CN115083366B CN202210804191.1A CN202210804191A CN115083366B CN 115083366 B CN115083366 B CN 115083366B CN 202210804191 A CN202210804191 A CN 202210804191A CN 115083366 B CN115083366 B CN 115083366B
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driving chip
display panel
compensation
display
source driving
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CN115083366A (en
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王文礼
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TCL China Star Optoelectronics Technology Co Ltd
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TCL China Star Optoelectronics Technology 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
    • G09G3/34—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
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3685—Details of drivers for data electrodes
    • 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
    • G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • 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
    • G09G2320/0257—Reduction of after-image effects

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The embodiment of the application discloses a compensation method and a compensation device for mura phenomenon of a display panel, which are used for storing compensation data into a source electrode driving chip. Specifically, the source driving chip has a certain memory space, so that compensation data can be stored in the source driving chip. When the display panel needs to be lightened, the time sequence control board can transmit a lightening signal to the source electrode driving chip, when the source electrode driving chip receives the lightening signal, the compensation value corresponding to the gray scale is compensated to the gray scale displayed below according to the compensation data, and then the compensated display information is transmitted to the display panel, so that the display panel is lightened, and the mura phenomenon of the display panel is compensated.

Description

Compensation method and compensation device for mura phenomenon of display panel
Technical Field
The application relates to the technical field of display, in particular to a compensation method and a compensation device for mura phenomenon of a display panel.
Background
Currently, in the modern communication industry, the market demands of products such as mobile phones, televisions, tablets, notebooks, digital cameras and the like are increasing, and various display devices are also developing toward high resolution. However, due to the differences of transient voltage, gamma voltage and the like at the center and the corners of the liquid crystal display panel, the uniformity of the overall brightness of the display panel is not up to the standard, and mura phenomenon occurs.
Among them, the conventional method is to perform the elimination of mura using external optical compensation. In the current external optical compensation architecture, the compensation data storage of mura phenomenon requires additional memory cells on the printed circuit board, thereby increasing the cost of the product.
Therefore, how to compensate for mura phenomenon without adding new memory cells is a difficulty that panel manufacturers need to overcome.
Disclosure of Invention
The embodiment of the application provides a method and a device for compensating mura phenomenon of a display panel, which are used for solving the technical problem that in the prior art, the mura phenomenon can be compensated only by adding a new storage unit.
The application provides a compensation method of mura phenomenon of a display panel, which comprises the following steps:
acquiring compensation data of the display panel;
storing the compensation data into a source electrode driving chip;
and controlling the source electrode driving chip to transmit the compensation data to the display panel so as to lighten the display panel and realize the compensation of the mura phenomenon of the display panel.
Optionally, in some embodiments of the present application, the specific step of obtaining compensation data of the display panel includes:
acquiring a display image of the display panel, wherein the display image comprises a first area and a second area which is arranged adjacent to the first area;
and acquiring first compensation data of the first area and second compensation data of the second area.
Optionally, in some embodiments of the present application, the source driving chip includes a first source driving chip for controlling the display of the first display area and a second source driving chip for controlling the display of the second display area, the first source driving chip includes a first main source driving chip and a plurality of first sub source driving chips, the second source driving chip includes a second main source driving chip and a plurality of second sub source driving chips, and the specific step of storing the compensation data into the source driving chip includes:
storing the first compensation data to a first main source driving chip;
and storing the second compensation data to a second main source electrode driving chip.
Optionally, in some embodiments of the present application, the specific step of controlling the source driving chip to transmit the compensation data to the display panel includes:
controlling the first main source electrode driving chip to transmit the first compensation data to the first auxiliary source electrode driving chip;
controlling the second main source driving chip to transmit the second data to the second auxiliary source driving chip;
and controlling the first main source electrode driving chip and the first auxiliary source electrode driving chip to transmit the first compensation data to the display panel, and controlling the second main source electrode driving chip and the second auxiliary source electrode driving chip to transmit the second compensation data to the display panel.
Optionally, in some embodiments of the present application, the specific step of obtaining compensation data of the display panel includes:
acquiring a display image of the display panel, wherein the display image comprises a plurality of display subareas;
and acquiring compensation sub-data of the display sub-regions, wherein the compensation sub-data corresponds to the display sub-regions one by one.
Optionally, in some embodiments of the present application, the acquiring compensation sub-data of the plurality of display sub-regions, where the compensation sub-data corresponds to the display sub-regions one to one specifically includes:
acquiring compensation data of the display panel;
splitting the compensation data into a plurality of compensation sub-data, wherein the compensation sub-data corresponds to the display sub-regions one by one.
Optionally, in some embodiments of the present application, the source driving chip includes a plurality of sub-source driving chips for controlling the display of the display sub-region, the sub-source driving chips are disposed in one-to-one correspondence with the display sub-region, and the specific steps of storing the compensation data in the source driving chip include:
and storing the compensation sub-data into a sub-source driving chip corresponding to the compensation sub-data.
Optionally, in some embodiments of the present application, the specific step of controlling the source driving chip to transmit the compensation data to the display panel includes:
and the control sub-source driving chip transmits the compensation sub-data corresponding to the control sub-source driving chip to the display panel.
Optionally, before the step of obtaining the compensation data of the display panel, the method further includes:
the image retention of the display panel is erased to bring the display panel to an initial state.
The embodiment of the application also provides a compensation device for the mura phenomenon of the display panel, which comprises:
an acquisition unit configured to acquire compensation data of the display panel;
the storage unit is used for storing the compensation data into the source electrode driving chip;
and the transmission unit is used for controlling the source electrode driving chip to transmit the compensation data to the display panel so as to lighten the display panel and realize the compensation of the mura phenomenon of the display panel.
In the method and device for compensating mura phenomenon of display panel provided in the embodiments of the present application, the compensation data is stored in the source driving chip. Specifically, the source driving chip has a certain memory space, so that compensation data can be stored in the source driving chip. When the display panel needs to be lightened, the time sequence control board can transmit a lightening signal to the source electrode driving chip, when the source electrode driving chip receives the lightening signal, the compensation value corresponding to the gray scale is compensated to the gray scale displayed below according to the compensation data, and then the compensated display information is transmitted to the display panel, so that the display panel is lightened, and the mura phenomenon of the display panel is compensated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of 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 method for compensating mura phenomenon of a display panel according to an embodiment of the application.
Fig. 2 is a schematic diagram of a first sub-flow of a method for compensating mura phenomenon of a display panel according to an embodiment of the present application.
Fig. 3 is a schematic diagram of a second sub-flow of the method for compensating mura phenomenon of the display panel according to the embodiment of the present application.
Fig. 4 is a schematic diagram of a third sub-flow of the method for compensating mura phenomenon of the display panel according to the embodiment of the present application.
Fig. 5 is a fourth sub-flowchart of a method for compensating mura phenomenon of a display panel according to an embodiment of the present application.
Fig. 6 is a fifth sub-flowchart of a method for compensating mura phenomenon of a display panel according to an embodiment of the present application.
Fig. 7 is a sixth sub-flowchart of a method for compensating mura phenomenon of a display panel according to an embodiment of the present application.
Fig. 8 is a seventh sub-flowchart of a method for compensating mura phenomenon of a display panel according to an embodiment of the present application.
Fig. 9 is a second flow chart of a method for compensating mura phenomenon of a display panel according to an embodiment of the application.
Fig. 10 is a schematic structural diagram of a mura phenomenon compensation device for a display panel according to an embodiment of the present application.
Fig. 11 is a schematic structural diagram of a compensation structure for mura phenomenon of a display panel according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
In the description of the present application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be interpreted as indicating or implying a relative importance or an implicit indication of the number of technical features being indicated. Thus, features defining "first" and "second", etc., may explicitly or implicitly include one or more of such features and thus should not be construed as limiting the application.
The embodiment of the application provides a correction method and a correction device for brightness of a display panel. The following will describe in detail. The following description of the embodiments is not intended to limit the preferred embodiments.
Referring to fig. 1, fig. 1 is a first flow chart of a method for compensating mura phenomenon of a display panel according to an embodiment of the application. As shown in fig. 1, the compensation method of mura phenomenon of display panel includes the following steps:
and 101, acquiring compensation data of the display panel.
It should be noted that, when some display areas of the display panel display preset gray levels, the brightness of the display areas does not reach the preset requirement, so that the mura phenomenon of the display panel occurs. Therefore, the compensation data of the display panel, that is, the gray scale of the display area of the display panel, needs to be adjusted. The gray scale of the display area of the display panel is required to be adjusted to be a numerical value represented by the brightness of the display panel.
Wherein the brightness of the display panel is obtained by a color analyzer. Specifically, CA310 or CA410 may be employed to obtain the brightness of the display panel. The probe of CA310 or CA410 is directed to the display panel and perpendicular to the display panel, thereby measuring the brightness of the display panel. Specifically, when the brightness of some areas of the display panel is obtained, the brightness of the center point of some areas of the display panel may be obtained instead of the brightness of some areas of the display panel.
The color analyzer is selected based on the resolution, size, shooting distance and optical compensation accuracy of the display panel.
102. And storing the compensation data into the source electrode driving chip.
The source driver chip has a certain memory space. Specifically, the memory space of the source driver chip is between 50KB and 600 KB. Since the compensation data of the display panel is the adjustment value of the gray scale of the display panel, the compensation data of the display panel is not large, so that the compensation data can be stored in the source driving chip.
The embodiment of the application stores the compensation data in the source electrode driving chip. Firstly, the compensation of mura phenomenon can be realized without setting a new storage unit, so that the cost of the product can be reduced; and secondly, the source electrode driving chip adjusts the gray scale value of the display panel according to the compensation data, and can directly extract the compensation data without other unit transmission, thereby reducing the compensation time of the mura phenomenon of the display panel and improving the display sensitivity of the display panel.
103. The source electrode driving chip is controlled to transmit compensation data to the display panel so as to lighten the display panel and realize the compensation of mura phenomenon of the display panel.
When the display panel needs to be lightened, the time sequence control board transmits a lightening signal to the source electrode driving chip, when the source electrode driving chip receives the lightening signal, the compensation value corresponding to the gray scale is compensated to the displayed gray scale according to the compensation data, and then the compensated display information is transmitted to the display panel, so that the down-indication panel is lightened, and the mura phenomenon of the display panel is compensated.
Referring to fig. 2, fig. 2 is a schematic diagram of a first sub-flow of a method for compensating mura phenomenon of a display panel according to an embodiment of the application. As shown in fig. 2, step 101 includes the following specific steps:
step 1011, obtaining a display image of a display panel, wherein the display image comprises a first area and a second area arranged adjacent to the first area.
In the embodiment of the application, the first area is a left half area of the display image, and the second area is a right half area of the display image. Of course, the first area and the second area may also be other areas for displaying images, which are not specifically limited herein.
It should be noted that, in the compensation architecture of mura phenomenon of the display panel, the source driving chips are generally divided into two sides, and a space is reserved between the source driving chips at two sides to avoid signal crosstalk when the timing control board transmits the lighting signal to the source driving chips. Therefore, in order to facilitate the source driving chip to acquire the compensation data, the display image includes a first region and a second region disposed adjacent to the first region, i.e., is divided into a left half region and a right half region of the display image.
The display image of the display panel is acquired, which may specifically be as follows:
(1) The white picture is transmitted to the display panel.
In the embodiment of the application, the mura phenomenon of the display panel is compensated, and the color is not compensated. Therefore, only the gray-scale picture is required to be detected. Therefore, a white screen with a fixed gray scale is transmitted to the display panel, and the brightness of the white screen is measured. The fixed gray scale may be one of 0 gray scale, 24 gray scale, 32 gray scale, 64 gray scale, 96 gray scale, 128 gray scale, 225 gray scale, and 255 gray scale.
(2) And acquiring a display image of the display panel when the white picture is displayed.
Step 1012, acquiring first compensation data of the first area and second compensation data of the second area.
It should be noted that, the first compensation data of the first area and the second compensation data of the second area may be acquired respectively. The total compensation data of the display panel can be acquired first, and then the total compensation data is divided into first compensation data and second compensation data.
Referring to fig. 3, fig. 3 is a second sub-flowchart of the method for compensating mura phenomenon of the display panel according to the embodiment of the application. As shown in fig. 3, step 102 includes the following specific steps:
step 1021, the first compensation data is stored into the first main source driving chip.
Step 1022, store the second compensation data to the second main source driving chip.
The source electrode driving chip comprises a first source electrode driving chip for controlling the display of the first display area and a second source electrode driving chip for controlling the display of the second display area, wherein the first source electrode driving chip comprises a first main source electrode driving chip and a plurality of first auxiliary source electrode driving chips, and the second source electrode driving chip comprises a second main source electrode driving chip and a plurality of second auxiliary source electrode driving chips.
The first source driving chip is located at the left side of the lower part of the display panel. The second source driving chip is located at the right side of the lower part of the display panel. The first main source electrode driving chip and the second main source electrode driving chip are both the source electrode driving chips closest to the time sequence control plate.
It should be noted that, in the embodiment of the present application, the compensation data is stored in the first main source driving chip and the second main source driving chip, instead of storing the compensation data in all the source driving chips. Firstly, the number of wires required for storing compensation data can be reduced; secondly, the time for storing the compensation data can be reduced; third, the time for dividing the compensation data can be reduced.
Referring to fig. 4, fig. 4 is a third sub-flowchart of the method for compensating mura phenomenon of the display panel according to the embodiment of the application. As shown in fig. 4, step 103 includes the following specific steps:
step 1031, controlling the first main source driving chip to transmit the first compensation data to the first sub source driving chip.
Step 1032, controlling the second main source driving chip to transmit the second data to the second sub source driving chip.
Step 1033, controlling the first main source driving chip and the first sub source driving chip to transmit the first compensation data to the display panel, and controlling the second main source driving chip and the second sub source driving chip to transmit the second compensation data to the display panel.
It should be noted that, when the display panel needs to be turned on, the timing control board transmits the lighting signal to the first main source driving chip and the second main source driving chip. When the first main source electrode driving chip receives the lighting signal, the first compensation data is transmitted to the first auxiliary source electrode driving chip. When the second main source electrode driving chip receives the lighting signal, the second compensation data is transmitted to the second auxiliary source electrode driving chip. The first main source electrode driving chip and the first auxiliary source electrode driving chip compensate the compensation value corresponding to the gray scale to the displayed gray scale according to the first compensation sub-data, and then the compensated display information is transmitted to the display panel. The second main source electrode driving chip and the second auxiliary source electrode driving chip compensate the compensation value corresponding to the gray scale to the displayed gray scale according to the second compensation data, and then the compensated display information is transmitted to the display panel.
Referring to fig. 5, fig. 5 is a schematic diagram of a fourth sub-flow of a method for compensating mura phenomenon of a display panel according to an embodiment of the application. As shown in fig. 5, step 101 includes the following specific steps:
step 1013, acquiring a display image of a display panel, wherein the display image comprises a plurality of display sub-areas.
Step 1014, obtaining compensation sub-data of the display sub-regions, wherein the compensation sub-data corresponds to the display sub-regions one by one.
In the compensation structure of the mura phenomenon of the display panel, the source driving chip is provided in plural numbers, so that the display image can be divided into plural display sub-areas. The number of source driving chips is identical to the number of display sub-regions.
It should be noted that the source driving chip plays a role of transmitting the data signal to the display panel for display. Therefore, the storage amount of the source driving chip is not large. The compensation data is also divided into a plurality of compensation sub-data, and the storage amount required by the single compensation sub-data is not more, so that the source electrode driving chip can completely store all information of the compensation sub-data, information omission is avoided, and the compensation of mura phenomenon of the display panel is better realized.
Referring to fig. 6, fig. 6 is a fifth sub-flowchart of the method for compensating mura phenomenon of display panel according to the embodiment of the application. As shown in fig. 6, step 1014 includes the following specific steps:
step 10141, obtaining compensation data of the display panel.
Step 10142, splitting the compensation data into a plurality of compensation sub-data, wherein the compensation sub-data corresponds to the display sub-area one by one.
In the embodiment of the present application, the total compensation data of the display panel is obtained first, and then the compensation data is divided into the compensation sub-data corresponding to the source driving chip. Wherein the division of the compensation data is performed in the timing control board. In addition, the compensation sub-data may be directly acquired. But the compensation effect of firstly acquiring the total compensation data of the display panel and then dividing the compensation data is better.
Referring to fig. 7, fig. 7 is a sixth sub-flowchart of the method for compensating mura phenomenon of the display panel according to the embodiment of the application. As shown in fig. 7, step 102 includes the following specific steps:
step 1023, storing the compensation sub-data into the sub-source driving chip corresponding to the compensation sub-data.
The source electrode driving chips comprise a plurality of sub source electrode driving chips which are also used for controlling the display of the display subareas, and the sub source electrode driving chips are arranged in one-to-one correspondence with the display subareas.
Referring to fig. 8, fig. 8 is a seventh sub-flowchart of a method for compensating mura phenomenon of a display panel according to an embodiment of the application. As shown in fig. 8, step 103 includes the following specific steps: .
Step 1033, the control sub-source driving chip transmits the compensation sub-data corresponding to the sub-source driving chip to the display panel.
Referring to fig. 9, fig. 9 is a second flow chart of a method for compensating mura phenomenon of a display panel according to an embodiment of the application. As shown in fig. 9, before step 101, the method further includes:
step 104, erasing the image residue of the display panel to make the display panel in an initial state.
Wherein, the display panel has the phenomenon of image retention. Therefore, if the display image of the display panel is directly acquired, an error occurs between the acquired brightness of the display image and the actual brightness. Resulting in the accuracy of the display panel brightness correction. Therefore, before the display image of the display panel is acquired, an erasing operation is required to erase the image retention of the display panel. So that the display panel is in an initial state, and the image residues of the display panel are prevented from affecting the accuracy of the brightness correction of the subsequent display panel.
In the method for compensating for mura phenomenon of display panel provided by the embodiment of the application, the compensation data is stored in the source electrode driving chip. Specifically, the source driving chip has a certain memory space, so that compensation data can be stored in the source driving chip. When the display panel needs to be lightened, the time sequence control board can transmit a lightening signal to the source electrode driving chip, when the source electrode driving chip receives the lightening signal, the compensation value corresponding to the gray scale is compensated to the gray scale displayed below according to the compensation data, and then the compensated display information is transmitted to the display panel, so that the display panel is lightened, and the mura phenomenon of the display panel is compensated.
In order to better implement the method, the embodiment of the application also provides a compensation device for the mura phenomenon of the display panel.
Referring to fig. 10, fig. 10 is a schematic structural diagram of a mura phenomenon compensation device for a display panel according to an embodiment of the application. The compensation device 20 includes an acquisition unit 201, a storage unit 202, and a transmission unit 203, specifically as follows:
(1) An acquisition unit 201;
the acquisition unit 201 is used to acquire compensation data of the display panel.
(2) A storage unit 202;
the memory cell 202 is used for storing compensation data into the source driver chip.
(3) A transmission unit 203;
the transmission unit 203 is used for controlling the source driving chip to transmit compensation data to the display panel so as to light the display panel and realize compensation of mura phenomenon of the display panel.
Referring to fig. 11, fig. 11 is a schematic structural diagram of a compensation structure for mura phenomenon of a display panel according to an embodiment of the application. The compensation structure 30 for mura phenomenon of display panel includes a signal generator 301, a timing control board 302, a source driving chip 303, and a display panel 304.
The signal generator 301 is configured to generate a signal such as a lighting signal, and the timing control board 302 is configured to transmit the lighting signal to the corresponding source driving chip 303. The source driving chip 303 is used for storing compensation data, and the source driving chip 303 is used for changing an original gray level information value according to the compensation data after receiving a lighting signal, and transmitting the changed gray level information value to the display panel 304 to compensate the display panel 304, so as to improve the mura phenomenon of the display panel 304.
In the compensation device for mura phenomenon of display panel provided by the embodiment of the application, the compensation data is stored in the source electrode driving chip. Specifically, the source driving chip has a certain memory space, so that compensation data can be stored in the source driving chip. When the display panel needs to be lightened, the time sequence control board can transmit a lightening signal to the source electrode driving chip, when the source electrode driving chip receives the lightening signal, the compensation value corresponding to the gray scale is compensated to the gray scale displayed below according to the compensation data, and then the compensated display information is transmitted to the display panel, so that the display panel is lightened, and the mura phenomenon of the display panel is compensated.
The foregoing describes in detail a method and apparatus for compensating mura phenomenon of display panel provided by the embodiments of the present application, and specific examples are applied to illustrate the principles and embodiments of the present application, where the foregoing examples are only used to help understand the method and core idea of the present application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.

Claims (7)

1. A method for compensating for mura phenomenon of a display panel, comprising:
the method for acquiring the compensation data of the display panel comprises the following specific steps: acquiring a display image of the display panel, wherein the display image comprises a first area and a second area which is arranged adjacent to the first area; acquiring first compensation data of the first area and second compensation data of the second area;
storing the compensation data into a source driving chip, wherein the source driving chip comprises a first source driving chip for controlling the display of the first display area and a second source driving chip for controlling the display of the second display area, the first source driving chip comprises a first main source driving chip and a plurality of first auxiliary source driving chips, the second source driving chip comprises a second main source driving chip and a plurality of second auxiliary source driving chips, and the specific steps of storing the compensation data into the source driving chip comprise: storing the first compensation data to a first main source driving chip; storing the second compensation data to a second main source driving chip;
the method comprises the specific steps of:
controlling the first main source electrode driving chip to transmit the first compensation data to the first auxiliary source electrode driving chip;
controlling the second main source driving chip to transmit the second data to the second auxiliary source driving chip;
and controlling the first main source electrode driving chip and the first auxiliary source electrode driving chip to transmit the first compensation data to the display panel, and controlling the second main source electrode driving chip and the second auxiliary source electrode driving chip to transmit the second compensation data to the display panel.
2. The method for compensating for the mura phenomenon of a display panel according to claim 1, wherein said step of acquiring compensation data of said display panel comprises:
acquiring a display image of the display panel, wherein the display image comprises a plurality of display subareas;
and acquiring compensation sub-data of the display sub-regions, wherein the compensation sub-data corresponds to the display sub-regions one by one.
3. The method for compensating for mura phenomenon in display panel according to claim 2, wherein said obtaining compensation sub-data of a plurality of said display sub-areas, said compensation sub-data being in one-to-one correspondence with said display sub-areas, comprises:
acquiring compensation data of the display panel;
splitting the compensation data into a plurality of compensation sub-data, wherein the compensation sub-data corresponds to the display sub-regions one by one.
4. The method for compensating mura phenomenon in display panel according to claim 3, wherein said source driving chip includes a plurality of sub-source driving chips for controlling display of said display sub-regions, said sub-source driving chips are disposed in one-to-one correspondence with said display sub-regions, and said storing said compensation data into said source driving chips comprises the steps of:
and storing the compensation sub-data into a sub-source driving chip corresponding to the compensation sub-data.
5. The method of claim 4, wherein the step of controlling the source driving chip to transmit the compensation data to the display panel comprises:
and the control sub-source driving chip transmits the compensation sub-data corresponding to the control sub-source driving chip to the display panel.
6. The method for compensating for the mura phenomenon of a display panel according to claim 1, wherein prior to the step of acquiring the compensation data of the display panel, further comprising:
the image retention of the display panel is erased to bring the display panel to an initial state.
7. A compensation device for mura phenomenon of display panel, the compensation device comprising:
the acquisition unit is used for acquiring the compensation data of the display panel, and specifically comprises the following steps: acquiring a display image of the display panel, wherein the display image comprises a first area and a second area which is arranged adjacent to the first area; acquiring first compensation data of the first area and second compensation data of the second area;
the storage unit is used for storing the compensation data into the source electrode driving chip, and specifically comprises the following components: storing the first compensation data to a first main source driving chip; storing the second compensation data to a second main source driving chip, wherein the source driving chip comprises a first source driving chip for controlling the display of the first display area and a second source driving chip for controlling the display of the second display area, the first source driving chip comprises a first main source driving chip and a plurality of first auxiliary source driving chips, the second source driving chip comprises a second main source driving chip and a plurality of second auxiliary source driving chips, and the specific steps of storing the compensation data to the source driving chips comprise: storing the first compensation data to a first main source driving chip; storing the second compensation data to a second main source driving chip;
the transmission unit is used for controlling the source electrode driving chip to transmit the compensation data to the display panel so as to lighten the display panel, and the compensation of the mura phenomenon of the display panel is realized, and the transmission unit specifically comprises:
controlling the first main source electrode driving chip to transmit the first compensation data to the first auxiliary source electrode driving chip;
controlling the second main source driving chip to transmit the second data to the second auxiliary source driving chip;
and controlling the first main source electrode driving chip and the first auxiliary source electrode driving chip to transmit the first compensation data to the display panel, and controlling the second main source electrode driving chip and the second auxiliary source electrode driving chip to transmit the second compensation data to the display panel.
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