CN114694599A

CN114694599A - Display apparatus and mura processing method

Info

Publication number: CN114694599A
Application number: CN202011564255.2A
Authority: CN
Inventors: 赵树斌; 张盼涛
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2022-07-01
Anticipated expiration: 2040-12-25
Also published as: CN114694599B

Abstract

The embodiment of the invention provides a display device and a mura processing method, relates to the technical field of display, and can realize dynamic adjustment of demura data of the display device so as to eliminate dynamically changed mura and provide better uniform use experience for users. The method comprises the following steps: receiving a brightness correction instruction; the brightness correction instruction is used for indicating that the brightness of the display is optimized; determining demura data of a mura area in the display according to the first accumulated display time in response to the brightness correction instruction; the first accumulated display time is used for indicating the accumulated opening time of the display, and the demura data is related to the first accumulated display time; and adjusting the brightness of the mura area according to the demura data. The invention is used for brightness correction of the display device.

Description

Display apparatus and mura processing method

Technical Field

The invention relates to the technical field of display, in particular to a display device and a mura processing method.

Background

The brightness uniformity of the liquid crystal display device is an important index for measuring the display effect of the liquid crystal display device, and the light spots caused by the uneven screen brightness of the liquid crystal display device in the use process can cause the reduction of the user experience. The light spot occurring when the liquid crystal display device is used due to the luminance unevenness is called mura.

Aiming at the mura problem of the liquid crystal display equipment, at present, when the liquid crystal display equipment leaves a factory, the liquid crystal display equipment usually stores demura data in a memory chip inside the liquid crystal display equipment so as to eliminate the mura problem, and when the liquid crystal display equipment is started, the liquid crystal display equipment can correct and compensate the mura by calling the demura data so as to eliminate the mura. However, since the demura data are fixed and invariable, and the mura on the liquid crystal display device can change with time, when the mura of the liquid crystal display device changes, the fixed demura data cannot eliminate the changed mura, thereby affecting the user experience.

Disclosure of Invention

Embodiments of the present invention provide a display device and a mura processing method, which can dynamically adjust demura data of the display device to eliminate dynamically changing mura, thereby improving user experience.

In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:

in a first aspect, there is provided a display device comprising: a display and a controller. Wherein the display is configured to display a user interface; the controller is configured to:

receiving a brightness correction instruction; the brightness correction instruction is used for indicating that the brightness of the display is optimized;

determining demura data of a mura area in the display according to the first accumulated display time in response to the brightness correction instruction; the first accumulated display time is used for indicating the accumulated opening time of the display, and the demura data is related to the first accumulated display time;

and adjusting the brightness of the mura area according to the demura data.

In a second aspect, a mura processing method is provided, which is applied to the display device provided in the first aspect, and includes:

and adjusting the brightness of the mura area according to the demura data.

The display device provided by the embodiment of the invention can determine corresponding demura data according to the mura change of the display in the display device at different accumulated display time, so that the display device can continuously and dynamically adjust the demura data according to the different accumulated display time, and compensate the dynamically changed mura through the dynamically adjusted demura data to eliminate the mura in the display device, thereby improving the use experience of a user.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of an operation scenario between a display device and a control apparatus according to an embodiment of the present invention;

fig. 2 is a block diagram of a hardware configuration of a display device according to an embodiment of the present invention;

fig. 3 is a block diagram of a hardware configuration of a control device according to an embodiment of the present invention;

FIG. 4 is a schematic flow chart of a mura processing method according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a user interface of a display device requesting correction of screen brightness according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a user interface for correcting screen brightness of a display device according to an embodiment of the present invention;

fig. 7 is a schematic diagram illustrating division of sampling units in a display device according to an embodiment of the present invention;

FIG. 8 is a second flowchart of a mura processing method according to the embodiment of the present invention;

FIG. 9 is a graph illustrating brightness of a display device at different accumulated display times according to an embodiment of the present invention;

fig. 10 is a schematic diagram of block sampling of a display device according to an embodiment of the present invention;

FIG. 11 is a third schematic flow chart of a mura processing method according to the present invention;

FIG. 12 is a fourth flowchart illustrating a mura processing method according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a display device according to an embodiment of the present invention.

Detailed Description

To make the objects, embodiments and advantages of the present application clearer, the following description of exemplary embodiments of the present application will clearly and completely describe the exemplary embodiments of the present application with reference to the accompanying drawings in the exemplary embodiments of the present application, and it is to be understood that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments described herein without inventive step, are intended to be within the scope of the claims appended hereto. In addition, while the disclosure herein has been presented in terms of one or more exemplary examples, it should be appreciated that aspects of the disclosure may be implemented solely as a complete embodiment.

It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.

The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and are not necessarily intended to limit the order or sequence of any particular one, Unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or device that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or device.

The term "module," as used herein, refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.

The term "remote control" as used in this application refers to a component of an electronic device (such as the display device disclosed in this application) that is typically wirelessly controllable over a relatively short range of distances. Generally, an infrared and/or Radio Frequency (RF) signal and/or bluetooth is used to connect with the electronic device, and may also include functional modules such as WiFi, wireless Universal Serial Bus (USB), bluetooth, and motion sensor. For example: the hand-held touch remote controller replaces most of the physical built-in hard keys in the common remote control device with the user interface in the touch screen.

The term "gesture" as used in this application refers to a user's behavior through a change in hand shape or an action such as hand motion to convey a desired idea, action, purpose, or result.

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus according to an embodiment. As shown in fig. 1, a user may operate the display device 200 through the mobile terminal 300 and the control apparatus 100.

In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device 200 includes an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, etc., and the display device 200 is controlled by wireless or other wired methods. The user may input a user instruction through a key on a remote controller, voice input, control panel input, etc. to control the display apparatus 200. Such as: the user may input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right movement keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller, to implement a function of controlling the display device 200.

In some embodiments, mobile terminals, tablets, computers, laptops, and other smart devices may also be used to control the display device 200. For example, the display device 200 is controlled using an application program running on the smart device. The application program can provide various controls for a user in an intuitive User Interface (UI) on a screen associated with the smart device through configuration.

In some embodiments, the mobile terminal 300 may install a software application with the display device 200, implement connection communication through a network communication protocol, and implement the purpose of one-to-one control operation and data communication. Such as: the control instruction protocol can be established between the mobile terminal 300 and the display device 200, the remote control keyboard is synchronized to the mobile terminal 300, and the function of controlling the display device 200 is realized by controlling the user interface on the mobile terminal 300; the audio and video content displayed on the mobile terminal 300 may also be transmitted to the display device 200, so as to implement a synchronous display function.

As also shown in fig. 1, the display apparatus 200 also performs data communication with the server 400 through various communication means. The display apparatus 200 may be allowed to be communicatively connected through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display apparatus 200. Illustratively, the display device 200 receives software program updates, or accesses a remotely stored digital media library by sending and receiving information, and Electronic Program Guide (EPG) interactions. The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers. Other web service contents such as video on demand and advertisement services are provided through the server 400.

The display device 200 may be a liquid crystal display, an organic light-emitting diode (OLED) display, or a projection display device. The specific display device type, size, resolution, etc. are not limiting, and those skilled in the art will appreciate that the display device 200 may be modified in performance and configuration as desired.

The display apparatus 200 may additionally provide an intelligent network tv function providing a computer support function in addition to the broadcast receiving tv function, including but not limited to a network tv, an intelligent tv, an Internet Protocol Tv (IPTV), and the like.

A hardware configuration block diagram of a display device 200 according to an exemplary embodiment is exemplarily shown in fig. 2.

In some embodiments, at least one of the controller 250, the tuner demodulator 210, the communicator 220, the detector 230, the input/output interface 255, the display 275, the audio output interface 285, the memory 260, the power supply 290, the user interface 265, and the external device interface 240 is included in the display apparatus 200.

In some embodiments, a display 275 receives image signals from the output of the processor 254 and displays video content and images as well as components of the menu manipulation interface.

In some embodiments, the display 275, includes a display screen assembly for presenting a picture, and a driving assembly that drives the display of an image.

In some embodiments, the video content is displayed from broadcast television content, or alternatively, from various broadcast signals that may be received via wired or wireless communication protocols. Alternatively, various image contents received from the network communication protocol and sent from the network server side can be displayed.

In some embodiments, the display 275 is used to present a user interface generated in the display apparatus 200 and used to control the display apparatus 200.

In some embodiments, a driver assembly for driving the display is also included, depending on the type of display 275.

In some embodiments, when display 275 is a projection display, a projection device and a projection screen may also be included.

In some embodiments, communicator 220 is a component for communicating with external devices or external servers according to various communication protocol types. For example: the communicator may include at least one of a Wifi chip, a bluetooth communication protocol chip, a wired ethernet communication protocol chip, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver.

In some embodiments, the display apparatus 200 may establish control signal and data signal transmission and reception with the external control device 100 or the content providing apparatus through the communicator 220.

In some embodiments, the user interface 265 may be configured to receive infrared control signals for controlling the apparatus 100 (e.g., an infrared remote control, etc.).

In some embodiments, the detector 230 is used to collect signals of the external environment of the display device 200 or interaction with the outside.

In some embodiments, the detector 230 includes a light receiver, a sensor for collecting the intensity of ambient light, and parameters changes can be adaptively displayed by collecting the ambient light, and the like.

In some embodiments, the detector 230 may further include an image collector, such as a camera, etc., which may be configured to collect external environment scenes, collect attributes of the user or gestures interacted with the user, adaptively change display parameters, and recognize user gestures, so as to implement a function of interaction with the user.

In some embodiments, the detector 230 may also include a temperature sensor or the like, such as by sensing ambient temperature.

In some embodiments, the display apparatus 200 may adaptively adjust a display color temperature of an image. For example, the display apparatus 200 may be adjusted to display a cool tone when the temperature is in a high environment, or the display apparatus 200 may be adjusted to display a warm tone when the temperature is in a low environment.

In some embodiments, the detector 230 may also be a sound collector or the like, such as a microphone, which may be used to receive the user's voice. Illustratively, a voice signal including a control instruction for the user to control the display device 200, or to collect an ambient sound for recognizing an ambient scene type, so that the display device 200 can adaptively adapt to an ambient noise.

In some embodiments, as shown in fig. 2, the input/output interface 255 is configured to allow data transfer between the controller 250 and external other devices or other controllers 250. Such as receiving video signal data and audio signal data of an external device, or command instruction data, etc.

In some embodiments, the external device interface 240 may include, but is not limited to, the following: any one or more of a High Definition Multimedia Interface (HDMI) interface, an analog or data high definition component input interface, a composite video input interface, a USB input interface, an RGB port, and the like may be used. The plurality of interfaces may form a composite input/output interface.

In some embodiments, as shown in fig. 2, the tuning demodulator 210 is configured to receive a broadcast television signal through a wired or wireless receiving manner, perform modulation and demodulation processing such as amplification, mixing, resonance, and the like, and demodulate an audio and video signal from a plurality of wireless or wired broadcast television signals, where the audio and video signal may include a television audio and video signal carried in a television channel frequency selected by a user and an EPG data signal.

In some embodiments, the frequency points demodulated by the tuner demodulator 210 are controlled by the controller 250, and the controller 250 can send out a control signal according to the user selection so that the modem responds to the television signal frequency selected by the user and modulates and demodulates the television signal carried by the frequency.

In some embodiments, the broadcast television signal may be classified into a terrestrial broadcast signal, a cable broadcast signal, a satellite broadcast signal, an internet broadcast signal, or the like according to the broadcasting system of the television signal. Or may be classified into a digital modulation signal, an analog modulation signal, and the like according to a modulation type. Or the signals are classified into digital signals, analog signals and the like according to the types of the signals.

In some embodiments, the controller 250 and the modem 210 may be located in different separate devices, that is, the modem 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box. Therefore, the set top box outputs the television audio and video signals modulated and demodulated by the received broadcast television signals to the main body equipment, and the main body equipment receives the audio and video signals through the first input/output interface.

In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory. The controller 250 may control the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 275, the controller 250 may perform an operation related to the object selected by the user command.

In some embodiments, the object may be any one of selectable objects, such as a hyperlink or an icon. Operations related to the selected object, such as: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to the icon. The user command for selecting the UI object may be an input command through various input means (e.g., a mouse, a keyboard, a touch pad, etc.) connected to the display apparatus 200 or a voice command corresponding to a voice spoken by the user.

As shown in fig. 2, the controller 250 includes at least one of a Random Access Memory (RAM) 251, a read-only memory (ROM) 252, a video processor 270, an audio processor 280, other processors (e.g., a Graphics Processing Unit (GPU) 253, a Central Processing Unit (CPU) 254, a Communication Interface (Communication Interface), and a Communication Bus (Bus) 256.

In some embodiments, RAM 251 is used to store temporary data for the operating system or other programs that are running.

In some embodiments, ROM 252 is used to store instructions for various system boots.

In some embodiments, the ROM 252 is used to store a Basic Input Output System (BIOS) which is used to perform power-on self-test of the system, initialization of functional modules in the system, drivers for basic input/output of the system, and booting of the operating system.

In some embodiments, upon receiving the power-on signal, the display apparatus 200 starts power-on, and the CPU 254 executes a system start-up instruction in the ROM 252, and copies temporary data of the operating system stored in the memory into the RAM 251 so as to start or run the operating system. After the start of the operating system is completed, the CPU 254 copies the temporary data of the various application programs in the memory to the RAM 251, and then, facilitates the start or execution of the various application programs.

In some embodiments, CPU 254 is configured to execute operating system and application program instructions stored in memory. And executing various application programs, data and contents according to various interactive instructions received from the outside so as to finally display and play various audio and video contents.

In some exemplary embodiments, the CPU 254 may include a plurality of processors. The plurality of processors may include a main processor and one or more sub-processors. A main processor for performing some operations of the display apparatus 200 in a pre-power-up mode and/or operations of displaying a screen in a normal mode. One or more sub-processors for one operation in a standby mode or the like.

In some embodiments, the GPU 253 is used to generate various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And the system comprises a renderer for rendering various objects obtained based on the arithmetic unit, wherein the rendered objects are used for being displayed on a display.

In some embodiments, the video processor 270 is configured to receive an external video signal, and perform video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, image synthesis, and the like according to a standard codec protocol of the input signal, so as to obtain a signal that can be displayed or played on the direct display device 200.

In some embodiments, video processor 270 includes a demultiplexing module, a video decoding module, an image synthesis module, a frame rate conversion module, a display formatting module, and the like.

The demultiplexing module is configured to demultiplex an input audio/video data stream, and if an MPEG-2 data stream is input, demultiplex the input audio/video data stream into a video signal and an audio signal.

And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like.

And an image synthesis module, such as an image synthesizer, for performing an overlay mixing process on the zoomed video image and a Graphical User Interface (GUI) signal generated by the graphics generator according to the user input or the user input, so as to generate an image signal for display.

The frame rate conversion module is configured to convert an input video frame rate, such as a 60Hz frame rate into a 120Hz frame rate or a 240Hz frame rate, and the normal format is implemented in, for example, an interpolation frame mode.

The display format module is used for converting the received video output signal after the frame rate conversion, and changing the signal to conform to the signal of the display format, such as outputting an RGB data signal.

In some embodiments, the graphics processor 253 may be integrated with the video processor or may be separately configured, where the integrated configuration may perform processing of the graphics signal output to the display, and the separate configuration may perform different functions, such as GPU + Frame Rate Conversion (FRC) architecture.

In some embodiments, the audio processor 280 is configured to receive an external audio signal, decompress and decode the received audio signal according to a standard codec protocol of the input signal, and perform noise reduction, digital-to-analog conversion, and signal amplification to obtain an audio signal that can be played in a speaker.

In some embodiments, video processor 270 may include one or more chips. Audio processor 280 may also include one or more chips.

In some embodiments, video processor 270 and audio processor 280 may be separate chips or may be integrated with controller 250 in one or more chips.

In some embodiments, the audio output, under the control of controller 250, receives sound signals output by audio processor 280, such as: the speaker 286, and an external sound output terminal of the sound generating device that can output to the external device, in addition to the speaker carried by the display device 200 itself, such as: external sound interface or earphone interface, etc., and may also include a near field communication module in the communication interface, for example: and the Bluetooth module is used for outputting sound of the Bluetooth loudspeaker.

The power supply 290 supplies power to the display device 200 from the power input from the external power source under the control of the controller 250. The power supply 290 may be a built-in power supply circuit installed inside the display apparatus 200, or may be a power supply interface installed outside the display apparatus 200 to provide an external power supply in the display apparatus 200.

A user interface 265 for receiving a user input signal and then transmitting the received user input signal to the controller 250. The user input signal may be a remote controller signal received through an infrared receiver, or may be various user control signals received through a network communication module.

In some embodiments, the user inputs a user command through the control apparatus 100 or the mobile terminal, the user interface 265 transmits the user command according to the user input, and the display device 200 responds to the user input through the controller 250.

In some embodiments, the user may enter user commands through a Graphical User Interface (GUI) displayed on the display 275, and the user interface 265 may receive user input commands through the Graphical User Interface (GUI). Alternatively, the user may input a user command by inputting a specific sound or gesture, and the user interface 265 may receive the user input command by recognizing the sound or gesture through a sensor.

In some embodiments, a "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables conversion between an internal form of information and a form that is acceptable to the user. A common presentation form of a user interface is GUI, which refers to a user interface related to computer operations displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in the display screen of the electronic device, where the control may include a visual interface element such as an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc.

The memory 260 includes a memory storing various software modules for driving the display device 200. Such as: various software modules may be stored in memory 260, including: at least one of a basic module, a detection module, a communication module, a display control module, a browser module, and various service modules.

The base module is a bottom layer software module for signal communication between various hardware in the display device 200 and for sending processing and control signals to the upper layer module. The detection module is a management module for collecting various information from various sensors or user interfaces 265, performing digital-to-analog conversion, and analyzing and managing.

And the communication module is used for carrying out control and data communication with external equipment. The display control module is used for controlling the display to display the image content, and can be used for playing the multimedia image content, UI interface and other information. And the browser module is used for executing a module for data communication between the browsing servers. And the service module is used for providing various services and modules including various application programs. Meanwhile, the memory 260 is also used to store visual effect maps and the like for receiving external data and user data, images of respective items in various user interfaces, and a focus object.

Fig. 3 exemplarily shows a block diagram of a configuration of the control apparatus 100 according to an exemplary embodiment. As shown in fig. 3, the control device 100 includes a controller 110, a communication interface 130, a user input/output interface 140, a memory 190, and a power supply 180.

The control apparatus 100 is configured to control the display device, and receive an input operation instruction of a user, and convert the operation instruction into an instruction recognizable and responsive by the display device, serving as an interaction intermediary between the user and the display device. Such as: the user operates the channel up/down key on the control device 100, and the display device responds to the channel up/down operation.

In some embodiments, the control device 100 may be a smart device. Such as: the control apparatus 100 may install various applications for controlling the display device according to user's needs.

In some embodiments, as shown in fig. 1, a mobile terminal 300 or other intelligent electronic device, after installing an application for manipulating the display device 200, may function similarly to the control apparatus 100. Such as: the user may implement the function of controlling the physical keys of the apparatus 100 by installing an application, various function keys or virtual buttons of a graphical user interface available on the mobile terminal 300 or other intelligent electronic device.

The controller 110 includes a processor 112, a RAM 113 and a ROM 114, a communication interface 130, and a communication bus. The controller 110 is used to control the operation of the control device 100, as well as the internal components for communication and coordination and external and internal data processing functions.

The communication interface 130 enables communication of control signals and data signals with the display device under the control of the controller 110. Such as: and sending the received user input signal to the display device. The communication interface 130 may include at least one of a WiFi chip 131, a bluetooth module 132, an NFC module 133, and other near field communication modules.

A user input/output interface 140, wherein the input interface includes at least one of a microphone 141, a touch pad 142, a sensor 143, a key 144, and other input interfaces. Such as: the user can realize the user instruction input function through actions such as voice, touch, gestures, pressing and the like, and the input interface converts the received analog signals into digital signals and converts the digital signals into corresponding instruction signals and sends the instruction signals to the display equipment.

The output interface includes an interface that transmits the received user instruction to the display apparatus 200. In some embodiments, the interface may be an infrared signal interface or a radio frequency signal interface. Such as: when the interface is an infrared signal interface, a user input instruction needs to be converted into an infrared control signal according to an infrared control protocol, and the infrared control signal is sent to the display device through the infrared sending module. The following steps are repeated: when the interface is a radio frequency signal interface, a user input instruction needs to be converted into a digital signal, and then the digital signal is modulated according to a radio frequency control signal modulation protocol and then is sent to the display equipment by the radio frequency sending terminal.

In some embodiments, the control device 100 includes at least one of a communication interface 130 and a user input/output interface 140. The control device 100 is configured with a communication interface 130, such as: the WiFi, bluetooth, NFC, etc. modules may transmit the user input command to the display device 200 through the WiFi protocol, or the bluetooth protocol, or the NFC protocol code.

And a memory 190 for storing various operation programs, data, and applications for driving and controlling the display device under the control of the controller 110. The memory 190 may store various control signal commands input by a user.

The power supply 180, which is used to provide operational power support for the various components of the control device 100 under the control of the controller, may include a battery and associated control circuitry.

In some embodiments, the display device 200 shown in fig. 1 may be a liquid crystal display device, such as a liquid crystal television, and as the cumulative display time of the liquid crystal television increases, there are various factors that may cause mura of the screen of the display device to change, for example, liquid crystal in the display panel may be deposited due to gravity, so that the liquid crystal may be unevenly distributed in the display panel, and thus brightness of each area of the display panel may be unevenly and dynamically changed. Certainly, the reason for causing the dynamic mura problem of the lcd device may also be that when the backlight module of the lcd device works for a long time, the heat emitted by the backlight module changes the relative position between the display panel and the light emitting diode, or the backlight film and other factors cause the problem to be more obvious in the 8K resolution and large size display device. Such dynamic mura problem seriously affects the user experience, and the scheme of static demura data can not effectively solve the problem.

Aiming at the problem of dynamic change of a mura area in liquid crystal display equipment, the embodiment of the application provides a mura processing method which is applied to display equipment, and the display equipment at least comprises a display and a controller. As shown in fig. 4, the controller is configured to perform the steps of:

s101, receiving a brightness correction command.

Wherein the brightness correction instruction is used for indicating that the brightness of the display is optimized.

Specifically, the display device may further include a control device, and the control device may be a remote controller or a mobile terminal. When the control device is a remote controller, the remote controller can communicate with the controller through infrared protocol communication or Bluetooth protocol communication, and other short-distance communication modes; when the control device is a mobile terminal, the mobile terminal can be internally provided with a corresponding application program and is communicated with the controller through a network communication protocol or an infrared protocol and other short-distance communication modes.

In some embodiments, the display device may further include a touch component through which a user may interact with the display.

When the display device needs to perform brightness correction, the display device can display a brightness correction request on a user interface of the display through the controller, and a user confirms the brightness correction request through the control device, namely, sends a brightness correction instruction to the controller to start a brightness correction process of the display device and eliminate mura.

For example, when the display device needs to correct the brightness of the display, a prompt message "whether to correct the screen brightness" as shown in fig. 5 may be displayed on the user interface of the display through the controller, and at this time, the user may select whether to correct the brightness through the control device. When the control device is a remote controller, a user can select options through a left key and a right key (an add-subtract key or a channel control key) on the remote controller; when the control device is a mobile terminal, the user can also select the options through the application program downloaded in the mobile terminal, and the application program downloaded in the mobile terminal can simulate various key functions of the remote controller, so that the functions of the remote controller are realized.

In some embodiments, when the display device includes a touch component, the user may also select an option by touching the corresponding option box through the touch component. Of course, a person skilled in the art may also initiate the brightness correction process of the display by other methods, which is not limited in this embodiment of the present application.

When the control means determines that "yes" is selected, the controller receives a brightness correction instruction.

It should be noted that the display device herein may be the display device 200 shown in fig. 1, the control device may be the control device 100 shown in fig. 1 or the mobile terminal 300, and the display device and the control device herein may have the same functions as the corresponding devices in fig. 1, and are not described again here.

In some embodiments, after the user selects the correction screen brightness, the controller may display a progress prompt as shown in fig. 6 on the user interface of the display.

And S102, responding to a brightness correction instruction, and determining demura data of a mura area in the display according to the first accumulated display time.

The first accumulated display time is used for indicating the accumulated opening time of the display, and the demura data is related to the first accumulated display time.

Specifically, because the mura form of the display device changes along with the accumulated display time, and the changed new-form mura phenomenon cannot be eliminated by using the original demura data preset in the display device, the step determines the mura of the display device at different moments according to the relation between the mura and the accumulated display time, and establishes corresponding demura data for the mura to eliminate the continuously changed mura. The preset demura data is compensation data of the display device when the display device leaves the factory, and is used for eliminating the initial mura of the display device. The cumulative display time herein refers to a cumulative on time of the display device (display), and for example, when the display device is turned on for 1 hour on a certain day and turned on for 2 hours on the next day, the cumulative display time of the display device is 3 hours.

In this embodiment, mura refers to a phenomenon of uneven brightness of the display panel, for example, mura may refer to a condition that the brightness of a part of pixels in the display panel is outside a normal brightness threshold, and a difference between the brightness threshold and the normal brightness threshold is smaller than a first set value; the abnormal display means that the brightness of a part of pixels in the display panel is out of the normal brightness threshold value, and the difference value of the brightness threshold value and the brightness threshold value is larger than or equal to a first set value. The first set point can be determined empirically by those skilled in the art. The demura data is brightness compensation data used for compensating the brightness of a first pixel to enable the brightness of the first pixel to be at a normal brightness threshold value, and the first pixel refers to a pixel with a mura problem.

In some embodiments, the display may include a plurality of sampling units that may sample at intervals of N pixel units in the lateral and longitudinal directions of the display. For example, as shown in fig. 7, sampling may be performed at a pitch of 8 pixel units in the horizontal and vertical directions of the display, and the sampling unit may be Q in fig. 7₁And Q₂And so on. The sampling unit is a pixel unit, and the display illustrated in fig. 7 includes 3840 × 2160 pixel units, but the display may have other specifications in practice.

In some embodiments, as shown in fig. 8, step S102 may include:

and S1021a, determining the first brightness of the first sampling unit at the second accumulated display time according to the first brightness fitting curve.

The first brightness fitting curve is used for indicating the trend of the brightness of the first sampling unit changing along with the second accumulated display time, the first sampling unit is any one of the sampling units, and the second accumulated display time is any one of the accumulated opening time of the displayer.

Specifically, as shown in fig. 9, the luminance distribution of the display screen differs at different cumulative display times, and fig. 9 shows the luminance distribution of the display screen at the cumulative display time T1, the cumulative display time T2, and the cumulative display time T3, respectively. The brightness distribution of the display screen at a certain gray level and different accumulated display time can be represented by the following equation:

Lv＝F(row_i,col_j,T，Leveln)。

wherein (row)_i，col_j) Coordinates for indicating each sampling unit on the display screen, T is the accumulated display timeMeanwhile, Leveln is the nth gray scale (if 8 bits, 256 gray scales are provided in total) where the sampling unit is located, and Lv is the brightness of the corresponding gray scale down-sampling unit in the corresponding accumulated display time.

It should be noted that the above equation includes four independent variables of the row, column position, time information and the gray level, which can indicate the brightness of each sampling unit at a certain gray level n in the display screen at the accumulated display time T.

As shown in fig. 9, the luminance matrix corresponding to the accumulated display times T1, T2, and T3 may be expressed as: lv1 ═ F (row)_i,col_j,T1，Leveln)，Lv2＝F(row_i,col_j,T2，Leveln)，Lv3＝F(row_i,col_j,T3，Leveln)。

If it is

It indicates that the luminances of the six sampling units at the cumulative display time T1 at a specific gray level n in the display are 1, 1.1, 0.8, 1.5, 1.3 and 0.7, respectively. Of course, the brightness of only a part of the sampling units is illustrated here, and in practice, more sampling units are included in the display, which is not shown here.

The brightness corresponding to different accumulated display time of each sampling unit under a specific gray scale can be determined by the above equation, for example, Lv4 ═ F (row)_i,col_jT4, Level32) may indicate the luminance of each sample cell at the 32 nd gray-scale accumulated display time T4, …, Lvn ═ F (row)_i,col_jTn, Leveln) may indicate the brightness of each sampling unit at the nth gray scale accumulated display time Tn.

In a specific implementation process, since the display may include a plurality of divided sampling units, if the brightness of each sampling unit corresponding to different accumulated display time is determined according to the above process, a large amount of processing capacity of the controller is occupied, and a processing speed of determining the brightness of each sampling unit corresponding to different accumulated display time by the controller is reduced. Therefore, the variation trend of the brightness of the single sampling unit along with the accumulated display time can be determined according to the mathematical model and the brightness of the sampling unit at different accumulated display times. For example, after determining the brightness of the first sampling unit at the accumulated display time T1, T2, …, Tn, the brightness of the first sampling unit at different accumulated display times may be fitted to a first brightness fitting curve according to a corresponding mathematical algorithm, and the brightness of the first sampling unit at different accumulated display times, such as the brightness of the first sampling unit at the second accumulated display time, may be determined through the first brightness fitting curve.

It should be noted that the mathematical algorithm used for determining the first luminance fitting curve may be a conventional technical means in the art, and a person skilled in the art may determine the first luminance fitting curve according to the conventional technical means, which is not described herein again.

S1022a, determining a second luminance of the first pixel cell at the second accumulated display time according to the plurality of first luminances and the interpolation method.

The first pixel unit is any one pixel unit in a first area, and the first area is formed by a plurality of sampling units corresponding to the first brightness. For example, the first region may be the sampling unit Q in fig. 7₁And a sampling unit Q₂And a sampling unit Q₄₈₂And a sampling unit Q₄₈₃The rectangular area in between.

Specifically, the plurality of first luminances herein refer to luminances corresponding to the plurality of sampling units, respectively. After determining the first luminance of the first sampling unit at the second accumulated display time in step S1021a, the luminances of other pixel units in the first area at the second accumulated display time, such as the second luminance of the first pixel unit at the second accumulated display time, can be determined by interpolation. The interpolation method may be any of nearest neighbor interpolation, bilinear interpolation, or bicubic interpolation. The first sampling unit may be any one of the sampling units constituting the first region, such as the sampling unit Q₁And a sampling unit Q₂And a sampling unit Q₄₈₂And a sampling unit Q₄₈₃。

In some embodiments, if it is determined according to step S1021a that the first luminances of the first sampling unit 1, the first sampling unit 2, the first sampling unit 3, and the first sampling unit 4 are Lv1, Lv2, Lv3, and Lv4, respectively, as shown in fig. 10, coordinates of the four first sampling units form a rectangle, L12 is a distance between the first sampling unit 1 and the first sampling unit 2, L13 is a distance between the first sampling unit 1 and the first sampling unit 3, a distance from a first pixel unit located in the rectangle to the edge of the first sampling unit 1 and the first sampling unit 2 is L21, and a distance from the first pixel unit to the edge of the first sampling unit 1 and the first sampling unit 3 is L31, the second luminance Lv' of the first pixel unit may be determined by bilinear interpolation:

the above L12, L13, L21 and L31 may be determined by coordinates between corresponding sampling units, and are not described herein again.

Since the first sampling unit may be a sampling unit corresponding to any coordinate of the first sampling unit 1, the first sampling unit 2, the first sampling unit 3, and the first sampling unit 4, the second brightness of any first pixel unit in the rectangle formed by the first sampling unit 1, the first sampling unit 2, the first sampling unit 3, and the first sampling unit 4 may be determined according to a bilinear interpolation method.

Further, after determining the first luminances of the different first sampling units according to step S1021a, the second luminances of all the first pixel units in the display may be determined according to bilinear interpolation.

S1023a, determining a mura area according to the first luminance of the first sampling unit, the second luminance of the first pixel unit, and the luminance threshold.

Specifically, the first luminance of the first sampling unit and the second luminance of the first pixel unit can be determined through steps S1021a-S1022a, and since the first sampling unit and the first pixel unit can be any pixel unit in the display, the first sampling unit and the first pixel unit can constitute all pixel units in the display.

The luminance threshold herein is used to indicate the normal luminance range of the display, for example, the luminance threshold can be-300- & ltSUB- & gt 320nit, and at this time, if the first luminance of the first sampling unit and the second luminance of the first pixel unit are within the luminance threshold, the luminance of the corresponding pixel unit is normal; if the first brightness of the first sampling unit and the second brightness of the first pixel unit are outside the brightness threshold, the brightness of the corresponding pixel unit is abnormal, and the area where the first sampling unit and/or the first pixel unit with abnormal brightness are located constitutes a mura area.

It should be noted that the brightness threshold values of different regions in the display are different, where the brightness threshold value of the central region of the display is the highest, the brightness threshold value of the edge region is the lowest, and the brightness threshold value of the central region is in a smoothly descending trend when changing to the brightness threshold value of the edge region.

In some embodiments, after step S1023a, the method may further include:

and S1024a, determining demura data according to the third brightness of the mura area and the brightness threshold value.

Wherein the mura area includes the first sampling unit and/or the first pixel unit.

Specifically, after the mura areas are determined in steps S1021a-S1023a, the demura data corresponding to the mura areas can be determined according to the third brightness and the brightness threshold of the mura areas, so that after the controller compensates the third brightness of the corresponding areas according to the demura data corresponding to the mura areas, the third brightness of the mura areas is within the brightness threshold, that is, the mura areas in the display are eliminated.

When the third brightness of the mura area is smaller than the brightness threshold, the corresponding demura data can be larger than 1, and the third brightness of the mura area is improved; when the third brightness of the mura area is greater than the brightness threshold, its corresponding demura data may be less than 1, and the third brightness of the mura area is reduced. Here, the process of determining the corresponding demura data according to the third brightness and the brightness threshold of the mura area by the controller may refer to technical means commonly used in the art, and will not be described herein again.

In some embodiments, the display device may further include a memory configured to store a compensation coefficient mapping table. The compensation coefficient mapping table is used for indicating the corresponding relation among the accumulated display time, the mura area and the demura data.

For example, the compensation coefficient mapping table may be as shown in table 1 below:

TABLE 1

Accumulated display time	mura area	demura data
			T1	A first and a second mura area	LUT1，LUT2
T2	Third and fourth mura areas	LUT3，LUT4
			T3	Fifth and sixth mura areas	LUT5，LUT6
…	…	…

As shown in table 1, the mura area corresponding to the cumulative display time T1 includes a first mura area and a second mura area, wherein the demura data corresponding to the first mura area is LUT1, and the demura data corresponding to the second mura area is LUT 2; the mura area corresponding to the cumulative display time T2 includes a third mura area and a fourth mura area, wherein the demura data corresponding to the third mura area is LUT3, and the demura data corresponding to the fourth mura area is LUT 4; the mura area corresponding to the cumulative display time T3 includes a fifth mura area and a sixth mura area, where the demura data corresponding to the fifth mura area is LUT5, and the demura data corresponding to the sixth mura area is LUT 6. Of course, the respective mura areas shown in table 1 are only exemplary, and in practice, the display may include more mura areas at different cumulative display times, and the corresponding demura data of the mura areas may be the same or different. The

LUTs

1, 2, …, and 6 are two-dimensional lookup tables, which may include 100 × 200 coefficients, for example, which may indicate compensation coefficients for each pixel unit in the corresponding mura area.

It should be noted that, the mura areas (e.g., the first mura area, the second mura area, and the third mura area) in table 1 may be determined by the luminance of the sampling units and the interpolation method, and the mura areas include at least one pixel unit. The compensation coefficient mapping table may be determined by the method of steps S1021a-S1024a before factory shipment, and stored in the memory when the display device is factory shipped.

In some embodiments, as shown in fig. 11, step S102 may further include:

and S1021b, determining the demura data of the corresponding mura area from the compensation coefficient mapping table according to the first accumulated display time.

Specifically, when the memory of the display device includes the compensation coefficient mapping table, the controller may query the corresponding mura area and the compensation coefficient corresponding to the mura area from the compensation coefficient mapping table after determining the first accumulated display time.

It should be noted that steps S1021a-S1024a and step S1021b provide two different methods for determining demura data, where S1021a-S1024a are that, when the display device is in use, the controller determines the mura area and the demura data corresponding to the mura area in real time according to corresponding method flows. And S1021b is before the display device leaves the factory, a manufacturer determines, through experimental data, mura areas corresponding to different accumulated display times of the display device and demura data corresponding to the mura areas, and stores the mura areas and the demura data in the memory in the form of a compensation coefficient mapping table.

S1021a-S1024a and S1021b provide two methods for determining demura data, and S1021a-S1024a provide a method with larger data calculation amount and longer compensation time for mura area compared with the method provided by S1021 b; although the process that the controller determines the mura areas and the mura areas correspond to the demura data is omitted in the process that the user uses the display device, and the calculation speed is improved in the S1021b, because the mura areas actually corresponding to the display device at different accumulated display time may be different from the experimentally determined mura areas, the accuracy of the mura areas and the demura data determined by the compensation coefficient mapping table is poor.

S103, adjusting the brightness of the mura area according to the demura data.

Specifically, after the mura areas corresponding to different accumulated display times of the display and the demura data corresponding to the mura areas are determined, the brightness of the mura areas can be compensated according to the demura data, so that the brightness of the mura areas is within the brightness threshold.

According to the method and the device, the brightness of all pixel units in the display at different accumulated display time is determined by combining an interpolation method according to the trend that the brightness of each sampling unit in the display changes along with the accumulated display time, and then mura areas corresponding to the display at different accumulated display time and demura data corresponding to the mura areas are determined; the elimination of the corresponding mura area in the display can be realized by using the newly determined demura data, so that the brightness of the display is displayed uniformly. Because the demura data is dynamically changed, the dynamic-changed mura area can be eliminated by using the mura processing method of the embodiment, and the user experience is improved.

In some embodiments, as shown in fig. 12, before step S101, the controller is further configured to perform the following steps:

s201, determining a first accumulated display time of the display.

S202, if the first accumulated display time reaches a correction threshold value, a brightness correction request is initiated.

Specifically, the display device provided in this embodiment may correct the brightness uniformity of the display multiple times during the use process, that is, when the first accumulated display time of the display device reaches the corresponding threshold, the controller initiates a brightness correction request to correct the brightness of the display. For example, the correction threshold may be one month, six months, one year, three years, etc., and when the first accumulated display time reaches one month, the controller displays a brightness correction request as shown in fig. 5 on the user interface of the display, and confirms by the user whether or not to correct the brightness of the display, that is, after step S202, performs the above-described step S101; when the brightness correction of the display is completed, if the first accumulated display time reaches six months, the controller may display the brightness correction request again on the user interface of the display as shown in fig. 5, and perform steps S101-S103 in a loop.

It should be noted that the correction threshold may be limited, such as one month, six months, one year, and three years, or may be unlimited, and for example, every time the accumulated display time of the display reaches three months, the controller initiates the brightness correction request, and executes steps S101 to S103 in a loop.

In some embodiments, the display device may further include a timer configured to time the accumulated display time.

In some embodiments, when the display device includes a memory, the memory may include two memory partitions, wherein the preset demura data may be stored in a first memory partition; after the controller determines new demura data through S1021a-S1024a or S1021b, the preset demura data can be stored to the second memory partition as spare demura data, and these determined new demura data can be stored to the first memory partition for compensation of the mura area.

In some embodiments, the algorithm for determining the mura areas in S1021a-S1024a and the algorithm for determining the demura data according to the third luminance of the mura areas may be stored in a processor in the controller; of course, in some embodiments, the processor in the controller may also store the above-mentioned compensation coefficient mapping table.

In some embodiments, the mura may also refer to a phenomenon of uneven chromaticity of the display panel, for example, the mura may refer to that chromaticity of a part of pixels in the display panel is outside a normal chromaticity threshold, and a difference from the chromaticity threshold is smaller than a second set value; the abnormal display means that the chromaticity of a part of pixels in the display panel is out of the normal chromaticity threshold value, and the difference value of the chromaticity threshold value and the normal chromaticity threshold value is larger than or equal to a second set value. The second set point can be determined empirically by those skilled in the art. At this time, the demura data may also be chrominance compensation data for compensating the chrominance of the second pixel to make the chrominance of the second pixel be at the normal chrominance threshold, the second pixel is a pixel having a mura problem, and the first pixel and the second pixel may be the same. Of course, the demura data can compensate for both the luminance and chrominance of the pixel to be within the normal thresholds.

In some embodiments, the mura problem of the display further includes non-uniform chromaticity displayed, and for chromaticity adjustment of the display, a person skilled in the art may also adjust the chromaticity of the display according to the demura data, and the specific process may refer to the prior art or the above-mentioned luminance adjustment process, which is not described herein again.

In the embodiment of the application, the display device periodically initiates the brightness correction process of the display through the controller, and solves demura data under different accumulated display time, so that the brightness of the mura area under different accumulated display time is compensated, the dynamically changed mura area can be eliminated, and the user experience is improved.

According to the mura processing method, an embodiment of the present application provides a display apparatus, including: a display and a controller.

Wherein the display is configured to display a user interface.

The controller is configured to: receiving a brightness correction instruction; the brightness correction instruction is used for indicating that the brightness of the display is optimized; determining demura data of a mura area in the display according to the first accumulated display time in response to the brightness correction instruction; the first accumulated display time is used for indicating the accumulated opening time of the display, and the demura data is related to the first accumulated display time; and adjusting the brightness of the mura area according to the demura data.

In some embodiments, the display may include a plurality of sampling units.

In some embodiments, when determining demura data for a mura area in a display based on the first accumulated display time, the controller is further configured to: determining the first brightness of the first sampling unit at the second accumulated display time according to the first brightness fitting curve; the first brightness fitting curve is used for indicating the trend that the brightness of the first sampling unit changes along with the second accumulated display time, the first sampling unit is any one of the sampling units, and the second accumulated display time is any one of the accumulated opening time of the display; determining a second brightness of the first pixel unit in a second accumulated display time according to the plurality of first brightnesses and an interpolation method; the first pixel unit is any one pixel unit in a first area, and the first area is formed by a plurality of sampling units corresponding to first brightness; and determining the mura area according to the first brightness of the first sampling unit, the second brightness of the first pixel unit and the brightness threshold.

In some embodiments, after determining the mura area according to the first luminance of the first sampling unit, the second luminance of the first pixel unit, and the luminance threshold, the controller is further configured to: determining demura data according to the third brightness and the brightness threshold of the mura area; the mura area includes the first sampling unit and/or the first pixel unit.

In some embodiments, the display device further comprises a memory configured to store a compensation coefficient mapping table; the compensation coefficient map is used to indicate a correspondence relationship between the accumulated display time, the mura areas, and the demura data.

The controller is further configured to: and determining the demura data of the corresponding mura area from the compensation coefficient mapping table according to the first accumulated display time.

In some embodiments, the controller is further configured to: determining a first accumulated display time of the display; and if the first accumulated display time reaches the correction threshold, initiating a brightness correction request.

In some embodiments, as shown in fig. 13, the display device includes at least a display panel, a system-on-a-chip (SoC), a memory, a processor, and a timer.

The display panel can be the display, and the function of the display panel is the same as that of the display; the system on chip can be the controller, and the function of the controller is the same as that of the controller; the processor herein may also be part of a system-on-chip for storing and running the associated algorithms for determining the mura areas and for determining the demura data; the memory here is the same as the above-mentioned memory, and is also configured as two memory partitions, and the functions of the two memory partitions are the same as those of the first memory partition and the second memory partition described above; the timer is configured to time the accumulated display time.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A display device, comprising:

a display;

a controller configured to:

determining demura data of a mura area in the display according to a first accumulated display time in response to the brightness correction instruction; the first accumulated display time is used for indicating the accumulated opening time of the display, and the demura data is related to the first accumulated display time;

and adjusting the brightness of the mura area according to the demura data.

2. The display device of claim 1, wherein the display comprises a plurality of sampling cells; the controller is further configured to:

determining the first brightness of the first sampling unit at the second accumulated display time according to the first brightness fitting curve; the first brightness fitting curve is used for indicating the trend of the brightness of the first sampling unit along with the change of the second accumulated display time, the first sampling unit is any one of the sampling units, and the second accumulated display time is any one of the accumulated opening time of the display;

determining a second brightness of the first pixel unit at the second accumulated display time according to the plurality of first brightness and interpolation methods; the first pixel unit is any one pixel unit in a first area, and the first area is formed by a plurality of sampling units corresponding to the first brightness;

and determining the mura area according to the first brightness of the first sampling unit, the second brightness of the first pixel unit and a brightness threshold.

3. The display device of claim 2, wherein the controller is further configured to:

determining the demura data according to the third brightness of the mura area and the brightness threshold; the mura area includes the first sampling unit and/or the first pixel unit.

4. The display device according to claim 1, wherein the display device further comprises a memory configured to store a compensation coefficient mapping table; the compensation coefficient mapping table is used for indicating the corresponding relation among the accumulated display time, the mura area and the demura data;

the controller is further configured to:

and determining corresponding demura data of the mura area from the compensation coefficient mapping table according to the first accumulated display time.

5. The display device according to claim 3 or 4, wherein the controller is further configured to:

determining the first accumulated display time of the display;

and if the first accumulated display time reaches a correction threshold value, initiating a brightness correction request.

6. A mura processing method is applied to a display device, and the display device comprises a display; it is characterized by comprising:

and adjusting the brightness of the mura area according to the demura data.

7. The mura processing method according to claim 6 wherein the display comprises a plurality of sampling units; the step of determining demura data of a mura area in the display according to the first accumulated display time comprises the following steps:

determining the first brightness of the first sampling unit at the second accumulated display time according to the first brightness fitting curve; the first brightness fitting curve is used for indicating the trend of the brightness of the first sampling unit along with the change of the second accumulated display time, the first sampling unit is any one of the sampling units, and the second accumulated display time is any one accumulated opening time of the display;

determining a second brightness of the first pixel unit in the second accumulated display time according to a plurality of the first brightness and interpolation methods; the first pixel unit is any one pixel unit in a first area, and the first area is formed by a plurality of sampling units corresponding to the first brightness;

8. The mura processing method as claimed in claim 7, wherein after determining the mura area according to the first luminance of the first sampling unit, the second luminance of the first pixel unit and a luminance threshold, further comprising:

9. The mura processing method according to claim 6, wherein the display device further comprises a memory configured to store a compensation coefficient mapping table; the compensation coefficient mapping table is used for indicating the corresponding relation among the accumulated display time, the mura area and the demura data; the determining the demura data of the mura area in the display according to the first accumulated display time comprises:

10. The mura processing method according to claim 8 or 9, further comprising, before receiving the brightness correction instruction:

determining the first accumulated display time of the display;