CN114241979B - Mura defect compensation method, apparatus, device and storage medium - Google Patents

Mura defect compensation method, apparatus, device and storage medium Download PDF

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Publication number
CN114241979B
CN114241979B CN202111539463.1A CN202111539463A CN114241979B CN 114241979 B CN114241979 B CN 114241979B CN 202111539463 A CN202111539463 A CN 202111539463A CN 114241979 B CN114241979 B CN 114241979B
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mura
backlight
mura defect
distribution area
compensation
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CN114241979A (en
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张跃
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Huizhou Shiwei New Technology Co Ltd
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Huizhou Shiwei New 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
    • G09G3/22—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]
    • 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
    • G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/0646—Modulation of illumination source brightness and image signal correlated to each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The application provides a Mura defect compensation method, a device, equipment and a computer readable storage medium, wherein the Mura defect compensation method comprises the following steps: performing Mura analysis on gray scale detection pictures of display areas in the Mini-LED display screen to obtain Mura defect information of the display areas; determining gray scale deviation levels of the display areas according to the Mura defect information; and carrying out backlight brightness compensation on the display subarea based on the gray level deviation level, and eliminating the Mura defect of the display subarea. According to the Mura defect compensation method, the Mura defect compensation can be carried out on the whole Mura defect of the display screen caused by the Mura defect of the display screen and uneven brightness of a Mini-LED backlight area under the condition that the backlight brightness of the Mini-LED display screen is adjusted, the display effect of the Mini-LED display screen is optimized, and the production efficiency of a Mini-LED display screen product is improved.

Description

Mura defect compensation method, apparatus, device and storage medium
Technical Field
The present application relates to the field of display control, and in particular, to a Mura defect compensation method, apparatus, device, and storage medium.
Background
At present, with the development of display technology, more and more display screens adopt Mini-LED backlight for backlight display, and the display screens adopting the Mini-LED backlight can present a more colorful picture effect, so that better visual experience is brought. The method for improving the Mura defect of the existing display screen product is to carry out partition compensation processing on the Mura on the panel through a demux algorithm, and the operation process of the existing demux algorithm is duplicated, so that the production efficiency of the panel is seriously influenced. The display screen adopting the Mini-LED backlight also can generate the condition of uneven brightness of different areas under the condition of displaying the same gray level due to the scheme design and/or the process, so that even though the display screen panel improves the panel Mura defect of the display screen panel through a Demura algorithm, the display screen still has the backlight Mura defect when displaying due to the Mini-LED backlight, and the problem of the prior display screen has to be improved.
Disclosure of Invention
The embodiment of the application provides a Mura defect compensation method, device, equipment and storage medium, and aims to solve the technical problem that a Mini-LED display screen cannot improve backlight Mura defects through a panel Mura algorithm in the prior art.
In one aspect, an embodiment of the present application provides a Mura defect compensation method, including the steps of:
performing Mura analysis on gray scale detection pictures of display partitions in a Mini-LED display screen to obtain Mura defect information of the target partition;
determining gray scale deviation levels of the display areas according to the Mura defect information;
and carrying out backlight brightness compensation on the display subarea based on the gray level deviation level, and eliminating Mura defects of the display subarea.
In some embodiments of the present application, the Mura analysis is performed on a gray scale detection picture of a display partition in a Mini-LED display screen to obtain Mura defect information of the target partition, including:
acquiring a shooting image of the gray level detection picture, carrying out image recognition on the shooting image, and positioning a Mura distribution area in the display partition;
and acquiring gray scale information of the Mura distribution area, and generating Mura defect information of the display area according to the gray scale information.
In some embodiments of the present application, the determining the backlight deviation level of the display partition according to the Mura defect information includes:
obtaining a reference detection gray level of the gray level detection picture;
comparing the reference detection gray level with the gray level information in the Mura defect information to obtain a gray level comparison result;
and determining gray level deviation levels of the Mura distribution areas in the display areas according to the gray level comparison results.
In some embodiments of the present application, the performing backlight brightness compensation on the display partition based on the gray level deviation level to eliminate Mura defects of the display partition includes:
inquiring a preset backlight brightness compensation table, and determining a backlight brightness compensation value corresponding to the gray level deviation level;
and carrying out backlight brightness compensation on the Mura distribution area of the display partition according to the backlight brightness compensation value, and eliminating Mura defects of the Mura distribution area.
In some embodiments of the present application, the performing backlight brightness compensation on the Mura distribution area of the display partition according to the backlight brightness compensation value, to eliminate the Mura defect of the Mura distribution area, includes:
positioning a backlight array of the Mura distribution area, and determining a Mura dithering strategy of the backlight array according to the backlight brightness compensation value;
And driving the backlight lamp array to carry out brightness dithering according to a preset Mura dithering strategy, changing the backlight brightness of the Mura distribution area, and eliminating the Mura defect of the Mura distribution area.
In some embodiments of the present application, the positioning the backlight array of the Mura distribution area, determining a Mura dithering strategy of the backlight array according to the backlight brightness compensation value, includes:
positioning a backlight lamp array of the Mura distribution area, and obtaining a backlight brightness compensation value corresponding to the backlight lamp array;
and setting the lamp bead shaking sequence and the lamp bead shaking frequency of the backlight lamp array based on the brightness compensation value to obtain a Mura shaking strategy of the backlight lamp array.
In some embodiments of the present application, the performing backlight brightness compensation on the display partition based on the gray level deviation level to eliminate Mura defects of the display partition includes:
positioning a backlight array of the Mura distribution area;
calculating backlight compensation voltage and/or backlight compensation current of the backlight array according to the backlight brightness compensation value;
and carrying out backlight brightness compensation on the Mura distribution area based on the backlight compensation voltage and/or the backlight compensation current, and eliminating Mura defects of the Mura distribution area.
In another aspect, the present application provides a Mura defect compensating apparatus, including:
the Mura analysis module is configured to carry out Mura analysis on gray scale detection pictures of the display partition in the Mini-LED display screen to obtain Mura defect information of the target partition;
a gray level determining module configured to determine a gray level deviation level of the display section according to the Mura defect information;
and the backlight compensation module is configured to carry out backlight brightness compensation on the display subarea based on the gray level deviation grade and eliminate Mura defects of the display subarea.
In another aspect, the present application further provides a Mura defect compensating apparatus, including:
one or more processors;
a memory; and
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the Mura defect compensation method.
In another aspect, the present application also provides a computer readable storage medium having stored thereon a computer program to be loaded by a processor for performing the steps of the Mura defect compensating method.
In the method, mura analysis is carried out on gray scale detection pictures of display partitions in a Mini-LED display screen, so that Mura defect information in each display partition is obtained; detecting a Mura distribution area in the display partition after the Mura defect information is acquired, and determining gray level deviation levels of the display partition; after the gray level deviation level is obtained, the backlight brightness of the Mini-LED display screen is adjusted according to the gray level deviation level, so that the backlight brightness compensation is carried out on the display partition, the Mura defect of the display partition of the Mini-LED display screen is eliminated, the Mura defect compensation is carried out on the whole Mura defect of the display screen under the condition that the backlight brightness of the Mini-LED display screen is adjusted only, and the display effect of the Mini-LED display screen is optimized.
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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 invention, 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 diagram of a Mura defect compensation method according to an embodiment of the present disclosure;
FIG. 2 is a flow chart of one embodiment of a Mura defect compensation method provided in embodiments of the present application;
FIG. 3 is a flow chart of another embodiment of the Mura defect compensation method provided in the embodiments of the present application;
FIG. 4 is a flow chart of a further embodiment of the Mura defect compensation method provided in the embodiments of the present application;
FIG. 5 is a flow chart of a further embodiment of the Mura defect compensation method provided in the embodiments of the present application;
FIG. 6 is a schematic diagram of an embodiment of a Mura defect compensation apparatus according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an embodiment of a Mura defect compensating apparatus according to an embodiment of the present application.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In this application, the term "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for purposes of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes have not been described in detail so as not to obscure the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
At present, with the development of display technology, more and more display screens adopt Mini-LED backlight for backlight display, and the display screens adopting the Mini-LED backlight can present a more colorful picture effect, so that better visual experience is brought. The method for improving the Mura defect of the existing display screen product is to carry out partition compensation processing on the Mura on the panel through a demux algorithm, and the operation process of the existing demux algorithm is duplicated, so that the production efficiency of the panel is seriously influenced. The display screen adopting the Mini-LED backlight also can generate the condition of uneven brightness of a less block under the condition of displaying the same gray level due to the scheme design and/or the process, so that even though the display screen panel improves the panel Mura defect of the display screen panel through a Demura algorithm, the display screen still has the backlight Mura defect when displaying due to the Mini-LED backlight, and the prior display screen has the Mura defect of the whole to be improved. Based on the above, the application provides a Mura defect compensation method, a device, equipment and a computer readable storage medium, so as to solve the technical problems that a Mini-LED display screen cannot improve backlight Mura defects through a panel Mura algorithm and the production efficiency of the panel is low in the prior art.
The Mura defect compensation method in the embodiment of the invention is applied to a Mura defect compensation device, the Mura defect compensation device is arranged in Mura defect compensation equipment, one or more processors, a memory and one or more application programs are arranged in the Mura defect compensation equipment, wherein the one or more application programs are stored in the memory and are configured to be executed by the processor to implement the Mura defect compensation method; the Mura defect compensation device can be an intelligent terminal with a Mini-LED display screen, such as a mobile phone, a tablet personal computer, an intelligent television, network equipment, an intelligent computer and the like.
As shown in fig. 1, fig. 1 is a schematic view of a Mura defect compensating method according to an embodiment of the present application, where a Mura defect compensating scene includes a Mura defect compensating apparatus 100 (a Mura defect compensating device is integrated in the Mura defect compensating apparatus 100), and a computer readable storage medium corresponding to the Mura defect compensating method is run in the Mura defect compensating apparatus 100 to execute steps of the Mura defect compensating method.
It should be understood that the Mura defect compensating apparatus in the Mura defect compensating method scenario shown in fig. 1, or the devices included in the Mura defect compensating apparatus, are not limited to embodiments of the present invention, that is, the number of apparatuses and the types of apparatuses of the Mura defect compensating apparatus included in the Mura defect compensating method scenario, or the number of devices and the types of devices included in each apparatus do not affect the overall implementation of the technical solution in the embodiments of the present invention, and may be calculated as equivalent replacement or derivative of the technical solution claimed in the embodiments of the present invention.
The Mura defect compensating apparatus 100 in the embodiment of the present invention is mainly used for: the method comprises the steps of performing Mura analysis on gray scale detection pictures of display partitions in a Mini-LED display screen, so as to obtain Mura defect information in each display partition; detecting a Mura distribution area in the display partition after the Mura defect information is acquired, and determining gray level deviation levels of the display partition; after the gray level deviation level is obtained, the backlight brightness of the Mini-LED display screen is adjusted according to the gray level deviation level, so that the backlight brightness compensation is carried out on the display partition, the Mura defect of the display partition of the Mini-LED display screen is eliminated, the Mura defect compensation is carried out on the whole Mura defect of the display screen under the condition that the display screen Mura defect and the uneven brightness of the Mini-LED backlight area are caused only by adjusting the backlight brightness of the Mini-LED display screen, the display effect of the Mini-LED display screen is optimized, and the production efficiency of a Mini-LED display screen product is improved.
Embodiments of the present application provide a Mura defect compensating method, apparatus, device, and computer readable storage medium, which are described in detail below.
It will be understood by those skilled in the art that the application environment shown in fig. 1 is only one application scenario related to the present application scenario, and is not limited to the application scenario of the present application scenario, and other application environments may further include more or less Mura defect compensation devices than those shown in fig. 1, or a Mura defect compensation network connection relationship, for example, only one Mura defect compensation device is shown in fig. 1, and it is understood that the scenario of the Mura defect compensation method may further include one or more Mura defect compensation devices, which is not limited herein in particular; the Mura defect compensating apparatus 100 may further include a memory for storing photographed images of the gray-scale detection picture/gray-scale detection picture and other data.
It should be noted that, the schematic view of the scenario of the Mura defect compensating method shown in fig. 1 is only an example, and the scenario of the Mura defect compensating method described in the embodiment of the present invention is for more clearly describing the technical solution of the embodiment of the present invention, and does not constitute a limitation on the technical solution provided by the embodiment of the present invention.
Based on the above-mentioned scenarios of the Mura defect compensation method, various embodiments of the Mura defect compensation method disclosed in the present invention are presented.
As shown in fig. 2, fig. 2 is a flowchart of one embodiment of a Mura defect compensating method according to an embodiment of the present application, where the image processing method includes the following steps 201 to 203:
201. performing Mura analysis on gray scale detection pictures of display partitions in a Mini-LED display screen to obtain Mura defect information of the display partitions;
the Mura defect compensation method in the embodiment is applied to a Mura defect compensation device, and the type and number of the Mura defect compensation device are not particularly limited, that is, the Mura defect compensation device may be one or more intelligent terminals carrying Mini-LED display screens, and in a specific embodiment, the Mura defect compensation device is an intelligent television.
Specifically, the Mini-LED display screen in the Mura defect compensating apparatus in this embodiment includes a plurality of display sections capable of Local Dimming (area backlight control). Each display partition can independently perform regional backlight control, so that scene requirements of different application scenes are met.
Specifically, when the Mura defect compensation device leaves the factory, the Mura defect compensation device needs to be subjected to Mura defect detection, the gray scale detection picture of the display partition in the Mini-LED display screen is judged to be subjected to Mura analysis, the Mura defect information of the display partition is obtained, and the Mura defect existing in the display partition is compensated.
Specifically, after the Mura defect compensation equipment is powered on and started for the first time, a Mura defect detection instruction is received, wherein the Mura defect detection instruction is an operation instruction which is sent by a Mura detector through an intelligent terminal and carries a gray level detection picture and requests the Mura defect compensation equipment to carry out Mura analysis according to the gray level detection picture. After receiving a Mura defect detection instruction sent by a Mura detector, the Mura defect compensation equipment acquires a plurality of gray level detection pictures with different gray levels carried by the Mura defect detection instruction, outputs the gray level detection pictures in a Mini-LED display screen carried by the Mura defect compensation equipment, and carries out Mura analysis on the gray level detection pictures to obtain Mura defect information in the Mini-LED display screen. Optionally, the Mura defect compensation device may also retrieve the gray-scale detection picture locally stored in the storage module after receiving the Mura defect detection instruction, and display the gray-scale detection picture in the Mini-LED display screen.
Specifically, the Mura defect compensation device displays gray scale detection pictures with different gray scales through the Mini-LED display screen. And the Mura detector obtains a shooting image of the gray level detection picture through the gray level detection picture displayed by the Mini-LED display screen of the Mura defect compensation equipment through the camera equipment. The image pickup apparatus may be a high-definition camera or other image pickup apparatus. After acquiring a shooting image of the gray level detection picture, the Mura detector transmits the shooting image to the Mura defect compensation equipment, and drives the Mura defect compensation equipment to carry out Mura analysis according to the shooting image.
Specifically, the Mura defect compensation device receives an image of a gray scale detection picture, performs image recognition on the image, recognizes gray scale data in each display partition in the image, and locates a Mura distribution area in each display partition, wherein the Mura distribution area is a display area in which display gray scales in the display partition are different from gray scale values of the gray scale detection picture, and a Mura defect exists.
The Mura defect compensation equipment detects gray scale information of a Mura distribution area after locating the Mura distribution area in each display partition according to the shot image, and generates Mura defect information of the display partition, wherein the Mura defect information comprises the Mura distribution area in the display partition and the gray scale information corresponding to the Mura distribution area.
202. Determining gray scale deviation levels of the display areas according to the Mura defect information;
in this embodiment, the Mura defect compensation apparatus obtains Mura defect information of each display area in the Mini-LED display screen according to the captured image, and determines a gray level deviation level of the display area according to the Mura defect information.
Specifically, when the Mura defect compensation device is powered on and started, a gray level deviation level data table is generated in advance according to the divided display areas, after Mura defect information of each display area is obtained, the Mura defect information is input into a preset gray level deviation level data table, gray level deviation levels of the display areas are displayed according to the gray level deviation level data table, and the Mura defect state of the display areas is determined according to the gray level deviation levels.
Specifically, the Mura defect compensating apparatus acquires a gray-scale value of a gray-scale detection screen, sets the gray-scale value as a reference detection gray-scale of a gray-scale deviation level data table, and indicates the reference detection gray-scale by 0 in the gray-scale deviation level data table. The Mura defect compensation equipment obtains a comparison result by comparing the reference detection gray level with gray level information in the Mura defect information, and determines gray level deviation levels of the Mura distribution area in the display partition according to the comparison result.
Optionally, if the comparison result of the gray-scale information in the reference detection gray-scale and the Mura defect information is that the gray-scale information in the Mura defect information is darker than the gray-scale of the reference detection gray-scale, the Mura defect information is represented by a positive number in the gray-scale deviation level data table, and the larger the number is, the higher the gray-scale deviation level is.
Optionally, if the comparison result of the gray level information in the reference detection gray level and the gray level information in the Mura defect information is that the gray level information in the Mura defect information is shallower than the gray level of the reference detection gray level, the Mura defect information is represented by a negative number in the gray level deviation level data table, and the larger the absolute value of the value is, the higher the gray level deviation level is.
Optionally, in a specific embodiment, the Mini-LED display screen of the Mura defect compensating apparatus includes 256 display areas and 256 display areas, and after the Mura defect compensating apparatus is powered on, a gray scale detection picture is output on the Mini-LED display screen, where the gray scale of the gray scale detection picture is 25 gray scales, so that the Mura defect compensating apparatus generates a gray scale deviation level data table with a reference detection gray scale of 25 gray scales, and sets that "0" in the gray scale deviation level data table represents 25 gray scales. The Mura defect compensation device obtains the Mura defect information of each display area by obtaining a photographed image of a gray scale detection picture and carrying out image recognition on the photographed image, and compares the Mura defect information of each display area with a reference detection gray scale, namely, 25 gray scales after obtaining the Mura defect information of each display area, wherein the gray scale of the Mura defect information of the display area with the number (3, 3) is darker than the reference detection gray scale, 25 gray scales are darker, the gray scale deviation level is 2 gray scale deviation levels, and therefore, the gray scale deviation level of the Mura defect of the display area with the number (3, 3) is 2. The gray scale of the Mura defect information of the display area with the number (5, 10) is shallower than the reference detection gray scale of 25, and the gray scale deviation level is 1 gray scale deviation level, so the gray scale deviation level of the Mura defect of the display area with the number (5, 10) is-1.
The Mura defect compensation equipment obtains a gray level deviation level data table after obtaining gray level deviation levels of Mura defects of all display areas of the Mini-LED display screen, and carries out backlight brightness compensation on the Mura defects in all display areas according to the gray level deviation level table.
203. And carrying out backlight brightness compensation on the display subarea based on the gray level deviation level, and eliminating Mura defects of the display subarea.
In this embodiment, the Mura defect compensation apparatus obtains the gray-scale deviation level of the Mura defect of the display partition by reading the gray-scale deviation level table, and performs backlight brightness compensation on the display partition according to the gray-scale deviation level, thereby eliminating the Mura defect of the display partition.
Specifically, when the Mura defect compensation device is powered on, a backlight brightness compensation table is preset, wherein the backlight brightness compensation table is preset with a mapping relation between gray level deviation levels under each reference detection gray level and backlight brightness compensation values required for eliminating the backlight deviation levels.
Specifically, the Mura defect compensation device determines the gray level deviation level of the Mura defect of the Mura distribution area of the display partition according to the gray level deviation level data table, queries the backlight brightness compensation table, acquires the backlight brightness compensation value corresponding to the gray level deviation level, and performs backlight brightness compensation on the Mura distribution area of the display partition according to the backlight brightness compensation value after acquiring the backlight brightness compensation value corresponding to the gray level deviation level, thereby eliminating the Mura defect of the Mura distribution area.
Specifically, after the Mura defect compensation device obtains the backlight brightness compensation value of the Mura distribution area of the display partition, the backlight brightness of the Mura distribution area is changed by adjusting the jitter (Dither) strategy of the backlight array of the Mura distribution area, so that the backlight brightness compensation of the Mura defect of the Mura distribution area is realized, the Mura defect of the Mura distribution area is eliminated, and the Mura defect of the whole display screen caused by the Mura defect of the display screen and uneven snow of Mini-LED backlight is eliminated.
Optionally, in other embodiments, after obtaining the backlight brightness compensation value of the Mura distribution area of the display partition, the Mura defect compensation device changes the backlight brightness of the Mura distribution area by adjusting the backlight driving voltage and/or the backlight driving current of the backlight lamp array of the Mura distribution area, so as to implement backlight brightness compensation on the Mura defect of the Mura distribution area, and eliminate the Mura defect of the Mura distribution area, thereby eliminating the Mura defect of the whole display screen caused by the Mura defect of the display screen and uneven snow of the Mini-LED backlight.
In the embodiment, the Mura defect compensation device performs Mura analysis on gray scale detection pictures of display partitions in the Mini-LED display screen, so as to obtain Mura defect information in each display partition; detecting a Mura distribution area in the display partition after the Mura defect information is acquired, and determining gray level deviation levels of the display partition; after the gray level deviation level is obtained, the backlight brightness of the Mini-LED display screen is adjusted according to the gray level deviation level, so that the backlight brightness compensation is carried out on the display partition, the Mura defect of the display partition of the Mini-LED display screen is eliminated, the Mura defect compensation is carried out on the whole Mura defect of the display screen under the condition that the display screen Mura defect and the uneven brightness of the Mini-LED backlight area are caused only by adjusting the backlight brightness of the Mini-LED display screen, the display effect of the Mini-LED display screen is optimized, and the production efficiency of a Mini-LED display screen product is improved.
As shown in fig. 3, fig. 3 is a flow chart of another embodiment of the Mura defect compensating method provided in the embodiments of the present application.
Based on the above embodiment, the Mura defect compensating method provided in the present application further includes steps 301 to 302:
301. positioning a backlight array of the Mura distribution area, and determining a Mura dithering strategy of the backlight array according to the backlight brightness compensation value;
302. and driving the backlight lamp array to carry out brightness dithering according to a preset Mura dithering strategy, changing the backlight brightness of the Mura distribution area, and eliminating the Mura defect of the Mura distribution area.
In this embodiment, the Mura defect compensation apparatus determines a gray level deviation level of a Mura defect in a Mura distribution area of a display partition according to a gray level deviation level data table, queries a backlight luminance compensation table, obtains a backlight luminance compensation value corresponding to the gray level deviation level, and performs backlight luminance compensation on the Mura distribution area of the display partition according to the backlight luminance compensation value after obtaining the backlight luminance compensation value corresponding to the gray level deviation level, thereby eliminating the Mura defect in the Mura distribution area.
Specifically, the Mura defect compensation apparatus obtains position information of a Mura distribution area of the Mura defect information, and positions a backlight array corresponding to the Mura distribution area according to the position information. After the Mura defect compensation equipment is positioned to the backlight array corresponding to the Mura distribution area, the backlight brightness compensation value of the Mura distribution area is correspondingly obtained according to the gray level deviation level of the Mura distribution area, and the Mura dithering strategy of the backlight array is determined according to the brightness compensation value, wherein the Mura dithering strategy is a driving method for controlling the dithering frequency and/or the dithering sequence of the backlight beads of the Mura lamp array.
Optionally, the Mura defect compensation apparatus correspondingly sets a plurality of Mura dithering strategies according to different backlight brightness compensation values, each Mura dithering strategy corresponds to a different backlight brightness compensation value, and the Mura defect compensation apparatus controls the backlight lamp array to adjust the backlight brightness by driving different Mura dithering strategies.
Specifically, the Mura defect compensation device sets a Mura dithering strategy of lamp bead dithering of the backlight lamp array corresponding to the Mura distribution area, and drives the lamp bead of the backlight lamp array to conduct brightness dithering according to the Mura dithering strategy, so that the backlight brightness of the Mura distribution area is adjusted, gray scales of the Mura distribution area tend to be reference detection gray scales, and accordingly the Mura defect of the whole display screen caused by uneven brightness of the Mura defect and Mini-LED backlight area of the display screen is eliminated.
In this embodiment, the Mura defect compensation apparatus determines a gray level deviation level of a Mura defect in a Mura distribution area of a display partition through a gray level deviation level data table, queries a backlight brightness compensation table, obtains a backlight brightness compensation value corresponding to the gray level deviation level, locates a backlight array of the Mura distribution area of the display partition, determines a Mura dithering strategy of the backlight array according to the obtained backlight brightness compensation value, and after determining the Mura dithering strategy of the backlight array, drives the backlight array to perform brightness dithering according to a preset Mura dithering strategy, thereby adjusting the backlight brightness of the Mura distribution area, so that the gray level of the Mura distribution area tends to be a reference detection gray level, and thus eliminating the Mura defect of the whole display screen caused by the Mura defect of the display screen and uneven brightness of a Mini-LED backlight area.
As shown in fig. 4, fig. 4 is a flow chart of still another embodiment of the Mura defect compensating method provided in the embodiments of the present application.
Based on the above embodiment, the Mura defect compensating method provided in the present application further includes steps 401 to 402:
401. positioning a backlight lamp array of the Mura distribution area, and obtaining a backlight brightness compensation value corresponding to the backlight lamp array;
402. and setting the lamp bead shaking sequence and the lamp bead shaking frequency of the backlight lamp array based on the brightness compensation value to obtain a Mura shaking strategy of the backlight lamp array.
In this embodiment, the Mura defect compensating apparatus further generates a Mura jitter policy according to the backlight brightness compensation value of the Mura positioning area.
Specifically, the Mura defect compensating apparatus determines gray-scale deviation levels of Mura defects of a Mura distribution area of a display section according to the gray-scale deviation level data table, and positions a backlight array of the Mura distribution area according to the Mura defect information. After the backlight array of the Mura distribution area is obtained, a backlight brightness compensation table is queried, and a backlight brightness compensation value corresponding to the gray level deviation level is obtained.
After the backlight brightness compensation value corresponding to the gray level deviation level is obtained, the lamp bead shaking sequence and the lamp bead shaking frequency of the backlight lamp array are set in a self-defined mode according to the backlight brightness compensation value, and therefore the Mura shaking strategy of the backlight lamp array is generated.
Specifically, the Mura defect compensating device obtains a backlight brightness compensation value, and determines the backlight brightness compensation value to improve the backlight brightness of the Mura distribution area or reduce the backlight brightness of the Mura distribution area, thereby setting the lamp bead dithering sequence and the lamp bead dithering frequency of the backlight lamp array to improve the backlight brightness of the Mura distribution area or reduce the backlight brightness of the Mura distribution area.
Optionally, in one embodiment, the Mura defect compensating apparatus positions a backlight array of a specific Mura distribution area including 4 backlight beads. The Mura defect compensating apparatus acquires the backlight brightness compensation value and determines the backlight brightness compensation value to adjust the brightness value of the Mura distribution area to 75% of the original brightness. When the Mura defect compensation equipment controls the backlight array to drive, a certain lamp bead in the backlight array is driven to be extinguished according to the preset lamp bead shaking frequency and the preset lamp bead shaking sequence, so that the brightness value of the Mura distribution area is reduced to 75% of the original brightness, and the Mura defect of the display screen and the Mura defect of the whole display screen caused by uneven brightness of the Mini-LED backlight area are eliminated. Alternatively, in one embodiment, the bead dithering frequency is 16.67 seconds/time.
In this embodiment, the Mura defect compensation apparatus determines a gray level deviation level of a Mura defect in a Mura distribution area of a display partition through a gray level deviation level data table, queries a backlight luminance compensation table, obtains a backlight luminance compensation value corresponding to the gray level deviation level, locates a backlight array of the Mura distribution area of the display partition, obtains the backlight luminance compensation value of the Mura distribution area, and custom sets a lamp bead dithering sequence and a lamp bead dithering frequency of the backlight array according to the backlight luminance compensation value, thereby generating a Mura dithering strategy of the backlight array. And the backlight lamp beads are driven to carry out backlight brightness adjustment according to the Mura dithering strategy, so that the Mura defect of the display screen and the Mura defect of the whole display screen caused by uneven brightness of a Mini-LED backlight area are eliminated, and the display effect of the display screen is improved.
Fig. 5 is a schematic flow chart of another embodiment of the Mura defect compensating method according to the embodiment of the present application.
Based on the above embodiment, the Mura driving method of the present application further includes steps 501 to 503:
501. positioning a backlight array of the Mura distribution area;
502. calculating backlight compensation voltage and/or backlight compensation current of the backlight array according to the backlight brightness compensation value;
503. And carrying out backlight compensation on the display subarea based on the backlight compensation voltage and/or the backlight compensation current, and eliminating the Mura defect of the Mura distribution area.
In this embodiment, the Mura defect compensating apparatus is further capable of performing backlight brightness compensation on the Mura distribution area of the display section by adjusting the backlight compensation voltage and/or the backlight compensation current of the Mura distribution area, thereby eliminating the Mura defect of the Mura distribution area.
Specifically, after the Mura defect compensating apparatus obtains the Mura defect information, the Mura defect compensating apparatus obtains the position information of the Mura distribution area in the Mura defect information, so as to position the backlight array in the Mura distribution area according to the position information.
Specifically, after the Mura defect compensation device locates the backlight array of the Mura distribution area, the gray level deviation level of the Mura defect of the Mura distribution area of the display partition is determined according to the gray level deviation level data table, the backlight brightness compensation table is queried, the backlight brightness compensation value corresponding to the gray level deviation level is obtained, and the backlight compensation voltage and/or the backlight compensation current of the backlight array are calculated according to the backlight brightness compensation value. Specifically, the Mura defect compensating apparatus determines the backlight brightness compensation value to increase or decrease the brightness of the Mura distribution area to a specific brightness level, and calculates a backlight compensation voltage and/or a backlight compensation current of the backlight array according to the brightness level and the current brightness level.
Specifically, after the backlight compensation voltage and/or the backlight compensation current of the backlight array of the Mura distribution area are calculated, the Mura defect compensation device drives the backlight array of the Mura distribution area to perform backlight compensation through the backlight compensation voltage and/or the backlight compensation current, so that the brightness value of the Mura distribution area is compensated to a gray level state which is the same as or similar to the reference detection gray level, and the Mura defect of the Mura distribution area is eliminated.
In this embodiment, the Mura defect compensation apparatus obtains the position information of the Mura distribution area in the Mura defect information, so as to position the backlight array in the Mura distribution area according to the position information, calculate the backlight compensation voltage or the backlight compensation current of the backlight array according to the backlight compensation value, and perform backlight brightness compensation on the Mura distribution area according to the backlight compensation voltage and/or the backlight compensation current, thereby eliminating the Mura defect of the entire display screen caused by uneven brightness of the Mura defect and the Mini-LED backlight area of the display screen, and improving the display effect of the display screen.
In order to better implement the Mura defect compensation method in the embodiment of the present application, on the basis of the Mura defect compensation method, a Mura defect compensation apparatus is further provided in the embodiment of the present application, as shown in fig. 6, fig. 6 is a schematic structural diagram of an embodiment of a Mura defect compensation device provided in the embodiment of the present application, where the Mura defect compensation apparatus 600 includes:
The Mura analysis module 601 is configured to perform Mura analysis on the gray scale detection picture of the display partition in the Mini-LED display screen to obtain Mura defect information of the target partition;
a gray level determining module 602 configured to determine a gray level deviation level of the display section according to the Mura defect information;
and the backlight compensation module 603 is configured to perform backlight brightness compensation on the display partition based on the gray level deviation level, so as to eliminate Mura defects of the display partition.
In some embodiments of the present application, the Mura defect compensating device obtains a shot image of the gray level detection picture, performs image recognition on the shot image, and locates a Mura distribution area in the display partition;
and acquiring gray scale information of the Mura distribution area, and generating Mura defect information of the display area according to the gray scale information.
In some embodiments of the present application, the Mura defect compensating apparatus determines a backlight deviation level of the display area according to the Mura defect information, including:
obtaining a reference detection gray level of the gray level detection picture;
comparing the reference detection gray level with the gray level information in the Mura defect information to obtain a gray level comparison result;
And determining gray level deviation levels of the Mura distribution areas in the display areas according to the gray level comparison results.
In some embodiments of the present application, the Mura defect compensating apparatus performs backlight brightness compensation on the display partition based on the gray level deviation level, and eliminates the Mura defect of the display partition, including:
inquiring a preset backlight brightness compensation table, and determining a backlight brightness compensation value corresponding to the gray level deviation level;
and carrying out backlight brightness compensation on the Mura distribution area of the display partition according to the backlight brightness compensation value, and eliminating Mura defects of the Mura distribution area.
In some embodiments of the present application, the Mura defect compensating apparatus performs backlight brightness compensation on a Mura distribution area of a display partition according to the backlight brightness compensation value, to eliminate Mura defects of the Mura distribution area, including:
positioning a backlight array of the Mura distribution area, and determining a Mura dithering strategy of the backlight array according to the backlight brightness compensation value;
and driving the backlight lamp array to carry out brightness dithering according to a preset Mura dithering strategy, changing the backlight brightness of the Mura distribution area, and eliminating the Mura defect of the Mura distribution area.
In some embodiments of the present application, the Mura defect compensating apparatus locates a backlight array of the Mura distribution area, determines a Mura dithering strategy of the backlight array according to the backlight brightness compensation value, and includes:
positioning a backlight lamp array of the Mura distribution area, and obtaining a backlight brightness compensation value corresponding to the backlight lamp array;
and setting the lamp bead shaking sequence and the lamp bead shaking frequency of the backlight lamp array based on the brightness compensation value to obtain a Mura shaking strategy of the backlight lamp array.
In some embodiments of the present application, the Mura defect compensating apparatus performs backlight brightness compensation on the display partition based on the gray level deviation level, and eliminates the Mura defect of the display partition, including:
positioning a backlight array of the Mura distribution area;
calculating backlight compensation voltage and/or backlight compensation current of the backlight array according to the backlight brightness compensation value;
and carrying out backlight brightness compensation on the Mura distribution area based on the backlight compensation voltage and/or the backlight compensation current, and eliminating Mura defects of the Mura distribution area.
In the embodiment, the Mura defect compensation device performs Mura analysis on gray scale detection pictures of display partitions in the Mini-LED display screen, so as to obtain Mura defect information in each display partition; detecting a Mura distribution area in the display partition after the Mura defect information is acquired, and determining gray level deviation levels of the display partition; after the gray level deviation level is obtained, the backlight brightness of the Mini-LED display screen is adjusted according to the gray level deviation level, so that the backlight brightness compensation is carried out on the display partition, the Mura defect of the display partition of the Mini-LED display screen is eliminated, the Mura defect compensation is carried out on the whole Mura defect of the display screen under the condition that the display screen Mura defect and the uneven brightness of the Mini-LED backlight area are caused only by adjusting the backlight brightness of the Mini-LED display screen, the display effect of the Mini-LED display screen is optimized, and the production efficiency of a Mini-LED display screen product is improved.
The embodiment of the invention also provides Mura defect compensation equipment, as shown in fig. 7, and fig. 7 is a schematic structural diagram of one embodiment of the Mura defect compensation equipment provided by the embodiment of the application.
The Mura defect compensation device integrates any one of the Mura defect compensation devices provided by the embodiment of the invention, and comprises:
one or more processors;
a memory; and
one or more applications, wherein the one or more applications are stored in the memory and configured to perform the steps of the Mura defect compensation method described in any of the above-described Mura defect compensation method embodiments by the processor.
Specifically, the present invention relates to a method for manufacturing a semiconductor device. The Mura defect compensating apparatus may include one or more processors 701 of a processing core, one or more memories 702 of a computer readable storage medium, a power supply 703, and an input unit 704, among other components. It will be appreciated by those skilled in the art that the Mura defect compensating apparatus structure shown in fig. 7 is not limiting of the Mura defect compensating apparatus and may include more or fewer components than shown, or may combine certain components, or may be a different arrangement of components. Wherein:
Processor 701 is the control center of the Mura defect compensating apparatus, connects the various parts of the entire Mura defect compensating apparatus using various interfaces and lines, and performs various functions and processes of the Mura defect compensating apparatus by running or executing software programs and/or modules stored in memory 702 and calling data stored in memory 702, thereby performing overall monitoring of the Mura defect compensating apparatus. Optionally, processor 701 may include one or more processing cores; preferably, the processor 701 may integrate an application processor and a modem processor, wherein the application processor primarily handles operating systems, user interfaces, applications, etc., and the modem processor primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 701.
The memory 702 may be used to store software programs and modules, and the processor 701 executes various functional applications and data processing by executing the software programs and modules stored in the memory 702. The memory 702 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data created according to the use of the Mura defect compensating apparatus, and the like. In addition, the memory 702 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 702 may also include a memory controller to provide access to the memory 702 by the processor 701.
The Mura defect compensating apparatus further includes a power supply 703 for supplying power to the respective components, and preferably, the power supply 703 may be logically connected to the processor 701 through a power management system, so that functions of managing charge, discharge, power consumption management, etc. are implemented through the power management system. The power supply 703 may also include one or more of any component, such as a direct current or alternating current power supply, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, etc.
The Mura defect compensating apparatus may further include an input unit 704, and the input unit 704 may be used to receive input numerical or character information and generate keyboard, mouse, joystick, optical or track ball signal inputs related to user settings and function control.
Although not shown, the Mura defect compensating apparatus may further include a display unit or the like, which is not described herein. Specifically, in this embodiment, the processor 701 in the Mura defect compensating device loads executable files corresponding to the processes of one or more application programs into the memory 702 according to the following instructions, and the processor 701 executes the application programs stored in the memory 702, so as to implement various functions as follows:
Performing Mura analysis on gray scale detection pictures of display partitions in a Mini-LED display screen to obtain Mura defect information of the display partitions;
determining gray scale deviation levels of the display areas according to the Mura defect information;
and carrying out backlight brightness compensation on the display subarea based on the gray level deviation level, and eliminating Mura defects of the display subarea.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and the portions of one embodiment that are not described in detail in the foregoing embodiments may be referred to in the foregoing detailed description of other embodiments, which are not described herein again.
In the implementation, each unit or structure may be implemented as an independent entity, or may be implemented as the same entity or several entities in any combination, and the implementation of each unit or structure may be referred to the foregoing method embodiments and will not be repeated herein.
The specific implementation of each operation above may be referred to the previous embodiments, and will not be described herein.
The foregoing has outlined a detailed description of a Mura defect compensation method provided by the embodiments of the present application, and specific embodiments have been presented herein to illustrate the principles and embodiments of the present invention, the above description of the embodiments being provided only to assist in understanding the method of the present invention and its core ideas; 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 invention, the present description should not be construed as limiting the present invention.

Claims (7)

1. A Mura defect compensating method, wherein the Mura defect compensating method comprises:
acquiring a shooting image of the gray level detection picture, carrying out image recognition on the shooting image, and positioning a Mura distribution area in the display partition;
acquiring gray scale information of the Mura distribution area, and generating Mura defect information of the display area according to the gray scale information;
determining gray scale deviation levels of the display areas according to the Mura defect information;
inquiring a preset backlight brightness compensation table, and determining a backlight brightness compensation value corresponding to the gray level deviation level;
positioning a backlight array of the Mura distribution area, and determining a Mura dithering strategy of the backlight array according to the backlight brightness compensation value, wherein the Mura dithering strategy is a driving method for controlling the dithering frequency and/or the dithering sequence of the backlight array of the Mura distribution area;
and driving the backlight lamp array to carry out brightness dithering according to a preset Mura dithering strategy, changing the backlight brightness of the Mura distribution area, and eliminating the Mura defect of the Mura distribution area.
2. The Mura defect compensating method of claim 1, wherein the determining a backlight deviation level of the display section according to the Mura defect information comprises:
Obtaining a reference detection gray level of the gray level detection picture;
comparing the reference detection gray level with the gray level information in the Mura defect information to obtain a gray level comparison result;
and determining gray level deviation levels of the Mura distribution areas in the display areas according to the gray level comparison results.
3. The Mura defect compensating method of claim 1, wherein the positioning the backlight array of the Mura distribution area, determining a Mura dithering strategy of the backlight array according to the backlight brightness compensation values, comprises:
positioning a backlight lamp array of the Mura distribution area, and obtaining a backlight brightness compensation value corresponding to the backlight lamp array;
and setting the lamp bead shaking sequence and the lamp bead shaking frequency of the backlight lamp array based on the brightness compensation value to obtain a Mura shaking strategy of the backlight lamp array.
4. The Mura defect compensating method of claim 1, wherein said performing backlight brightness compensation on said display section based on said gray scale deviation level to eliminate Mura defects of said display section comprises:
positioning a backlight array of the Mura distribution area;
calculating backlight compensation voltage and/or backlight compensation current of the backlight array according to the backlight brightness compensation value;
And carrying out backlight brightness compensation on the Mura distribution area based on the backlight compensation voltage and/or the backlight compensation current, and eliminating Mura defects of the Mura distribution area.
5. A Mura defect compensating apparatus, wherein the Mura defect compensating apparatus comprises:
the Mura analysis module is configured to acquire a shooting image of the gray level detection picture, perform image recognition on the shooting image and locate a Mura distribution area in the display partition; acquiring gray scale information of the Mura distribution area, and generating Mura defect information of the display area according to the gray scale information;
a gray level determining module configured to determine a gray level deviation level of the display section according to the Mura defect information;
the backlight compensation module is configured to query a preset backlight brightness compensation table and determine a backlight brightness compensation value corresponding to the gray level deviation level; positioning a backlight array of the Mura distribution area, and determining a Mura dithering strategy of the backlight array according to the backlight brightness compensation value, wherein the Mura dithering strategy is a driving method for controlling the dithering frequency and/or the dithering sequence of the backlight array of the Mura distribution area; and driving the backlight lamp array to carry out brightness dithering according to a preset Mura dithering strategy, changing the backlight brightness of the Mura distribution area, and eliminating the Mura defect of the Mura distribution area.
6. A Mura defect compensating apparatus, wherein the Mura defect compensating apparatus comprises:
one or more processors;
a memory; and
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the Mura defect compensating method of any of claims 1-4.
7. A computer-readable storage medium, having stored thereon a computer program, the computer program being loaded by a processor to perform the steps of the Mura defect compensating method of any of claims 1 to 4.
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