Display device and display brightness adjustment method

Abstract

Embodiments of the present invention provide a display device and a display brightness adjustment method, relating to the field of display technology. These methods address the technical problem that existing gamma systems cannot meet the growing needs of users. The method includes: upon receiving a gamma value adjustment instruction, a controller determines a gamma value corresponding to the gamma value adjustment instruction in response to the received gamma value adjustment instruction, and adjusts the brightness of the display based on the gamma value. The gamma value can be any value.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display device and a display brightness adjustment method. Background Art

[0002] With the development of liquid crystal televisions, users' requirements for the image display quality of liquid crystal televisions are also gradually increasing. Currently, users usually adjust the image display quality by adjusting the gamma value (gamma) of the display.

[0003] However, current gamma usually has only a few fixed parameters (e.g., 1.8, 2.0, 2.2, etc.) As users' requirements for image display quality increase, existing gamma cannot meet their growing needs. Summary of the Invention

[0004] Embodiments of the present invention provide a display device and a display brightness adjustment method, which can solve the technical problem that the existing gamma cannot meet the growing needs of users.

[0005] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions:

[0006] In a first aspect, a display device is provided, comprising: a controller and a display;

[0007] The display is used to display images;

[0008] The controller is configured to: receive a gamma value adjustment instruction; determine a gamma value corresponding to the adjustment instruction in response to the received adjustment instruction; and perform brightness adjustment processing on the display according to the gamma value; wherein the gamma value is an arbitrary value.

[0009] In a second aspect, a method for adjusting display brightness is provided, comprising:

[0010] Receive gamma value adjustment instructions;

[0011] In response to the received adjustment instruction, determining a gamma value corresponding to the adjustment instruction;

[0012] The brightness of the display is adjusted according to the gamma value, wherein the gamma value is an arbitrary value.

[0013] As can be seen above, after receiving a gamma adjustment instruction, the controller responds to the instruction by determining the gamma value corresponding to the instruction and adjusting the brightness of the display based on the gamma value. Since gamma values ​​can be arbitrary, the controller can adjust the brightness of the display based on any gamma value, resolving the technical issue of existing gamma values ​​failing to meet the growing needs of users and improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 A schematic diagram of an operation scenario between a display device and a control device provided by an embodiment of the present invention;

[0016] Figure 2 A hardware configuration block diagram of a display device provided in an embodiment of the present invention;

[0017] Figure 3 A schematic structural diagram of another display device provided by an embodiment of the present invention;

[0018] Figure 4 A schematic structural diagram of another display device provided by an embodiment of the present invention;

[0019] Figure 5 One of the flow charts of a display brightness adjustment method provided by an embodiment of the present invention;

[0020] Figure 6 A schematic diagram of the linear relationship between input RGB values ​​and output RGB values ​​provided by an embodiment of the present invention;

[0021] Figure 7 A second flow chart of a method for adjusting display brightness provided by an embodiment of the present invention;

[0022] Figure 8 A third flow chart of a method for adjusting display brightness provided by an embodiment of the present invention;

[0023] Figure 9 A schematic structural diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0025] All other embodiments derived by persons of ordinary skill in the art based on the exemplary embodiments described herein without inventive effort are within the scope of protection of the claims appended hereto. Furthermore, although the disclosure herein is presented based on one or more exemplary embodiments, it should be understood that each aspect of the disclosure may constitute a complete embodiment on its own.

[0026] It should be noted that the brief descriptions of terms in this application are only for the purpose of facilitating the understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and usual meanings.

[0027] In the specification and claims of this application and the drawings, the terms "first," "second," "third," etc. are used to distinguish similar or similar objects or entities, and are not necessarily intended to limit a particular order or precedence, unless otherwise indicated. It should be understood that the terms used in this manner are interchangeable under appropriate circumstances, for example, the embodiments of this application can be implemented in an order other than those shown or described in the drawings.

[0028] In addition, the terms "comprises" and "comprising" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0029] The term "module" as used in this application 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 functions associated with that element.

[0030] 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 can wirelessly control the electronic device, typically over a short distance. It typically connects to the electronic device using infrared and / or radio frequency (RF) signals and / or Bluetooth, and may also include functional modules such as WiFi, wireless universal serial bus (USB), Bluetooth, and motion sensors. For example, a handheld touch remote control replaces most of the physical built-in hard keys in a conventional remote control device with a user interface within a touch screen.

[0031] The term "gesture" used in this application refers to a user's behavior of expressing an intended idea, action, purpose, or result through a change in hand shape or hand movement.

[0032] Figure 1 FIG2 is a schematic diagram showing an operation scenario between a display device and a control device according to an embodiment. Figure 1 As shown in FIG, a user can operate the display device 200 through the mobile terminal 300 and the control apparatus 100 .

[0033] In some embodiments, the control device 100 may be a remote control. Communication between the remote control and the display device 200 may include infrared protocol communication, Bluetooth protocol communication, or other short-range communication methods, thereby controlling the display device 200 wirelessly or through wired methods. A user may control the display device 200 by inputting user commands through buttons on the remote control, voice input, control panel input, and the like. For example, a user may input corresponding control commands through the volume up / down keys, channel control keys, up / down / left / right movement keys, voice input keys, menu keys, power on / off keys, and the like on the remote control to control the display device 200.

[0034] In the embodiment of the present application, the control device 100 is configured to: in response to an input operation of a user, send an input instruction corresponding to the input operation to the controller.

[0035] Specifically, when adjusting the brightness of an image received by the display device 200, the user may perform an input operation on the control device 100 to input a gamma value corresponding to the brightness the user wants to adjust. In this case, the control device 100 responds to the user's input operation and sends an input instruction corresponding to the input operation to the controller.

[0036] In some embodiments, mobile terminals, tablet computers, computers, laptop computers, and other smart devices can also be used to control the display device 200. For example, an application running on the smart device can be used to control the display device 200. The application can be configured to provide various controls to the user in an intuitive user interface (UI) on a screen associated with the smart device.

[0037] In some embodiments, the mobile terminal 300 can install software applications on the display device 200 and establish communication via a network communication protocol, enabling one-to-one control operations and data communication. For example, a control command protocol can be established between the mobile terminal 300 and the display device 200, synchronizing a remote control keyboard to the mobile terminal 300, and controlling the user interface on the mobile terminal 300 to control the display device 200. Alternatively, audio and video content displayed on the mobile terminal 300 can be transmitted to the display device 200 for synchronized display.

[0038] like Figure 1It is also shown that the display device 200 also communicates data with the server 400 through various communication methods. The display device 200 may be allowed to communicate via a local area network (LAN), a wireless local area network (WLAN) and other networks. The server 400 may provide various content and interactions to the display device 200. For example, the display device 200 receives software program updates or accesses a remotely stored digital media library by sending and receiving information and interacting with an electronic program guide (EPG). The server 400 may be a cluster or multiple clusters, and may include one or more types of servers. Other network service content such as video on demand and advertising services is provided through the server 400.

[0039] In some embodiments, the display device 200 further includes: a communicator ( Figure 1 The communicator is configured to receive an image from the server 400 and send the image to the controller so that the controller controls the display to display a screen including the image.

[0040] The display device 200 can be a liquid crystal display, an organic light-emitting diode (OLED) display, or a projection display device. The specific display device type, size, and resolution are not limited. Those skilled in the art will appreciate that the display device 200 can be modified in terms of performance and configuration as needed.

[0041] In addition to providing broadcast reception television functions, the display device 200 may also provide additional intelligent network television functions that support computer functions, including but not limited to network television, smart TV, internet protocol television (IPTV), etc.

[0042] Figure 2 exemplarily shows a hardware configuration block diagram of the display device 200 according to an exemplary embodiment.

[0043] In some embodiments, the display device 200 includes at least one of a controller 250, a tuner and demodulator 210, a communicator 220, a detector 230, an input / output interface 255, a display 275, an audio output interface 285, a memory 260, a power supply 290, a user interface 265, and an external device interface 240.

[0044] In some embodiments, the display 275 is a component for receiving an image signal output from the processor 254 and displaying video content and images as well as a menu control interface.

[0045] In some embodiments, the display 275 includes a display screen component for presenting images and a driving component for driving image display.

[0046] In some embodiments, the displayed video content may be from broadcast television content, or various broadcast signals received via wired or wireless communication protocols, or various image content received from a network server via a network communication protocol.

[0047] In some embodiments, the display 275 is used to present a user interface generated in the display device 200 and used to control the display device 200 .

[0048] In some embodiments, depending on the type of display 275 , a driving component for driving the display is also included.

[0049] In some embodiments, when the display 275 is a projection display, it may also include a projection device and a projection screen.

[0050] In some embodiments, the communicator 220 is a component for communicating with external devices or external servers according to various communication protocols. For example, the communicator may include at least one of a Wi-Fi chip, a Bluetooth communication protocol chip, a wired Ethernet communication protocol chip, or other network communication protocol chip or a near-field communication protocol chip, as well as an infrared receiver.

[0051] In some embodiments, the display device 200 may establish transmission and reception of control signals and data signals with the external control apparatus 100 or the content providing apparatus through the communicator 220 .

[0052] In some embodiments, the user interface 265 may be configured to receive infrared control signals from the control device 100 (eg, an infrared remote controller, etc.).

[0053] In some embodiments, the detector 230 is used to collect signals of the external environment of the display device 200 or the external interaction.

[0054] In some embodiments, the detector 230 includes a light receiver, a sensor for collecting ambient light intensity, and can adaptively display parameter changes by collecting ambient light.

[0055] In some embodiments, the detector 230 may also include an image collector, such as a camera, a camera, etc., which can be used to collect external environment scenes, as well as to collect user attributes or gestures for interacting with the user. It can adaptively change display parameters and recognize user gestures to realize the function of interacting with the user.

[0056] In some embodiments, the detector 230 may further include a temperature sensor, such as by sensing the ambient temperature.

[0057] In some embodiments, the display device 200 can adaptively adjust the color temperature of the image displayed. For example, when the temperature is high, the display device 200 can be adjusted to display a cooler color temperature image, or when the temperature is low, the display device 200 can be adjusted to display a warmer color temperature image.

[0058] In some embodiments, the detector 230 may also be a sound collector, such as a microphone, for receiving the user's voice, illustratively including a voice signal of a user's control command for controlling the display device 200, or collecting ambient sound for identifying the type of ambient scene, so that the display device 200 can adaptively adapt to the ambient noise.

[0059] In some embodiments, as Figure 2 As shown, the input / output interface 255 is configured to perform data transmission between the controller 250 and other external devices or other controllers 250, such as receiving video signal data and audio signal data, or command instruction data from external devices.

[0060] In some embodiments, the external device interface 240 may include, but is not limited to, any one or more of a high-definition multimedia interface (HDMI) interface, an analog or digital high-definition component input interface, a composite video input interface, a USB input interface, an RGB port, and the like. Alternatively, multiple of the aforementioned interfaces may form a composite input / output interface.

[0061] In some embodiments, as Figure 2 As shown, the tuner-demodulator 210 is configured to receive broadcast television signals through wired or wireless reception, and can perform modulation and demodulation processing such as amplification, mixing and resonance, and demodulate audio and video signals from multiple wireless or wired broadcast television signals. The audio and video signals may include television audio and video signals carried in the television channel frequency selected by the user, as well as EPG data signals.

[0062] In some embodiments, the frequency demodulated by the tuner-demodulator 210 is controlled by the controller 250, which can send a control signal based on the user's selection to enable the modem to respond to the TV signal frequency selected by the user and modulate and demodulate the TV signal carried by the frequency.

[0063] In some embodiments, broadcast television signals can be classified as terrestrial broadcast signals, cable broadcast signals, satellite broadcast signals, or Internet broadcast signals based on the broadcast format of the television signal. Alternatively, they can be classified as digital modulation signals, analog modulation signals, etc. based on the modulation type. Alternatively, they can be classified as digital signals, analog signals, etc. based on the type of signal.

[0064] In some embodiments, the controller 250 and the tuner / demodulator 210 may be located in different separate devices, that is, the tuner / demodulator 210 may be located in an external device of the main device where the controller 250 is located, such as an external set-top box. In this way, the set-top box modulates and demodulates the received broadcast television signal into television audio and video signals and outputs them to the main device, which then receives the audio and video signals via the first input / output interface.

[0065] In some embodiments, controller 250 controls the operation of the display device and responds to user operations via various software control programs stored in memory. Controller 250 can control the overall operation of display device 200. For example, in response to receiving a user command to select a UI object for display on display 275, controller 250 can perform operations related to the object selected by the user command.

[0066] In some embodiments, the object can be any one of selectable objects, such as a hyperlink or an icon. Operations related to the selected object, for example, displaying an operation connected to a hyperlink page, document, image, or the like, or executing an operation corresponding to a program of the icon. The user command for selecting a UI object can be an input command via various input devices connected to the display device 200 (e.g., a mouse, keyboard, touchpad, etc.) or a voice command corresponding to a voice spoken by the user.

[0067] like Figure 2As shown, 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, and a communication bus 256. The communication bus connects the various components.

[0068] In some embodiments, RAM 251 is used to store temporary data for the operating system or other running programs.

[0069] In some embodiments, ROM 252 is used to store various system startup instructions.

[0070] In some embodiments, ROM 252 is used to store a basic input / output system, called a basic input / output system (BIOS), which is used to complete the system's power-on self-test, initialize various functional modules in the system, the system's basic input / output drivers, and boot the operating system.

[0071] In some embodiments, upon receiving a power-on signal, the display device 200 starts to power on, and the CPU 254 executes the system startup instructions in the ROM 252, copying the temporary data of the operating system stored in the memory to the RAM 251 to facilitate the startup or operation of the operating system. After the operating system is booted, the CPU 254 copies the temporary data of various application programs in the memory to the RAM 251 to facilitate the startup or operation of the various application programs.

[0072] In some embodiments, the CPU 254 is configured to execute operating system and application instructions stored in the memory, and to execute various applications, data, and content based on various interactive instructions received from external input, so as to ultimately display and play various audio and video content.

[0073] In some exemplary embodiments, CPU 254 may include multiple processors. The multiple processors may include a main processor and one or more sub-processors. The main processor is used to perform certain operations of display device 200 in pre-power-on mode and / or display images in normal mode. The one or more sub-processors are used to perform certain operations in states such as standby mode.

[0074] In some embodiments, the GPU 253 is used to generate various graphical objects, such as icons, operation menus, and graphics displayed in response to user input commands. The GPU 253 includes an arithmetic unit that receives various interactive commands from the user, performs operations, and displays various objects based on display attributes. The GPU 253 also includes a renderer that renders the various objects generated by the arithmetic unit. The rendered objects are then displayed on a display.

[0075] 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, etc. according to the standard codec protocol of the input signal, and obtain a signal that can be directly displayed or played on the display device 200.

[0076] In some embodiments, the 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.

[0077] The demultiplexing module is used to demultiplex the input audio and video data streams. For example, if an MPEG-2 data stream is input, the demultiplexing module demultiplexes it into video signals and audio signals.

[0078] The video decoding module is used to process the demultiplexed video signal, including decoding and scaling.

[0079] The image synthesis module, such as an image synthesizer, is used to superimpose and mix the graphical user interface (GUI) signal generated by the graphic generator according to user input or itself with the scaled video image to generate an image signal for display.

[0080] The frame rate conversion module is used to convert the input video frame rate, such as converting the 60Hz frame rate to 120Hz frame rate or 240Hz frame rate. The common format is implemented by interpolation.

[0081] The display formatting module is used to convert the received frame rate converted video output signal and change the signal to conform to the display format signal, such as outputting RGB data signal.

[0082] In some embodiments, the graphics processor 253 can be integrated with the video processor or can be separately configured. When integrated, it can perform processing of graphics signals output to the display. When separately configured, it can perform different functions separately, such as a GPU+frame rate conversion (FRC) architecture.

[0083] In some embodiments, the audio processor 280 is used to receive external audio signals, perform decompression and decoding according to the standard codec protocol of the input signal, and perform noise reduction, digital-to-analog conversion, and signal amplification to obtain a sound signal that can be played in a speaker.

[0084] In some embodiments, the video processor 270 may include one or more chips. The audio processor 280 may also include one or more chips.

[0085] In some embodiments, the video processor 270 and the audio processor 280 may be separate chips, or may be integrated with the controller 250 into one or more chips.

[0086] In some embodiments, the audio output receives the sound signal output by the audio processor 280 under the control of the controller 250, such as: the speaker 286, and in addition to the speaker carried by the display device 200 itself, can be output to the external audio output terminal of the sound-emitting device of the external device, such as: an external audio interface or a headphone interface, etc., and can also include a short-range communication module in the communication interface, for example: a Bluetooth module for Bluetooth speaker sound output.

[0087] Power supply 290, under the control of controller 250, uses power input from an external power source to provide power supply support for display device 200. Power supply 290 can be a built-in power supply circuit installed inside display device 200, or it can be a power supply installed outside display device 200 to provide a power interface for external power supply in display device 200.

[0088] The user interface 265 is used to receive user input signals and then send the received user input signals to the controller 250. The user input signals can be remote control signals received through an infrared receiver or various user control signals received through a network communication module.

[0089] 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 .

[0090] In some embodiments, the user may input a user command through a graphical user interface (GUI) displayed on the display 275, and the user interface 265 may receive the user input command through the graphical user interface (GUI). Alternatively, the user may input a user command through a specific voice or gesture, and the user interface 265 may receive the user input command by recognizing the voice or gesture through a sensor.

[0091] In some embodiments, a "user interface" is a medium interface for interaction and information exchange between an application or operating system and a user. It enables the conversion between the internal form of information and a form acceptable to the user. A common form of user interface is a GUI, which refers to a graphical user interface related to computer operations. It can be an interface element such as an icon, window, or control displayed on the display of an electronic device. Controls can include visual interface elements such as icons, buttons, menus, tabs, text boxes, dialog boxes, status bars, navigation bars, and widgets.

[0092] The memory 260 stores various software modules for driving the display device 200. For example, the memory 260 may store various software modules, 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.

[0093] The basic module is a low-level software module used for signal communication between various hardware in the display device 200 and sending processing and control signals to upper-level modules. The detection module is a management module used to collect various information from various sensors or user interfaces 265, perform digital-to-analog conversion, and analyze and manage.

[0094] The communication module is used for control and data communication with external devices. The display control module is used to control the display to display image content, and can be used to play multimedia image content and UI interface information. The browser module is used to perform data communication between browsing servers. The service module is used to provide various services and various applications. Memory 260 is also used to store received external data and user data, images of various items in the user interface, and visual effects of focus objects.

[0095] Gamma affects the image quality of a display and is a secondary function of its brightness and contrast. In printing technology or image processing, gamma refers to the relationship between input values ​​and the brightness of the display's output. It influences the distribution of tones from highlights to shadows on a manuscript.

[0096] As described in the background art, current gamma generally has only a few fixed parameters (eg, 1.8, 2.0, 2.2, etc.) As users' requirements for image display quality increase, existing gamma cannot meet the growing needs of users.

[0097] To address the above issues, embodiments of the present application provide a display device and a method for adjusting display brightness. Upon receiving a gamma value adjustment instruction, a controller determines a gamma value corresponding to the gamma value adjustment instruction and adjusts the brightness of the display based on the gamma value. The gamma value can be any value.

[0098] Combined with the above Figure 1 or Figure 2 The display brightness adjustment method provided in the embodiment of the present application is applicable to a display device. The display device includes: a controller (eg Figure 2 Controller 250 in), display (e.g. Figure 2 Display 275 in), communicator (e.g. Figure 2 220 in the communication) and the remote control (e.g. Figure 1 The controller is connected to the display, the communicator and the remote controller for communication.

[0099] The controller is configured to: receive a gamma value adjustment instruction; determine a gamma value corresponding to the adjustment instruction in response to the received adjustment instruction; and perform brightness adjustment processing on the display according to the gamma value; wherein the gamma value is an arbitrary value.

[0100] The display is used to display images.

[0101] Optionally, the communicator is configured to receive an image or video signal sent from a signal generator or a multimedia content device.

[0102] After receiving the image or video signal, the tuner (e.g. Figure 2 The signal is decoded by the tuner demodulator 210 in the video processor. Figure 2 The video processor 270 in the decoded signal performs image processing. Subsequently, the display shows the processed image.

[0103] Optionally, the remote controller is specifically configured to: send a gamma value adjustment instruction to the controller in response to a first trigger operation by the user. In this case, the controller is specifically configured to: receive the gamma value adjustment instruction sent by the remote controller.

[0104] Specifically, when inputting a gamma value, the user may perform a first trigger operation on the remote control (e.g., the user performs a gamma value input operation on the remote control). In this case, the remote control sends a gamma value adjustment instruction to the controller in response to the user's first trigger operation. Accordingly, the controller receives the gamma value adjustment instruction sent by the remote control.

[0105] Optionally, the display is further configured to display an interactive interface in response to a second trigger operation of the user. In this case, the controller is specifically configured to receive a gamma value adjustment instruction in response to a third trigger operation of the user on the interactive interface of the display.

[0106] Specifically, the user can perform a second trigger operation on the display device (e.g., the user performs an operation on the display device to display an interactive interface) to cause the display to display the interactive interface. In this way, when the user enters a gamma value, the gamma value input operation can be performed on the interactive interface displayed on the display. In this case, the controller receives the gamma value adjustment instruction in response to the user's third trigger operation on the interactive interface of the display (e.g., the user performs a gamma value input operation on the interactive interface).

[0107] Optionally, when inputting the gamma value, the user may also perform a gamma value input operation on a physical touch key of the display. In this case, the controller receives the gamma value adjustment instruction in response to a third trigger operation performed by the user on the physical touch key of the display (e.g., the user performs a gamma value input operation on the physical touch key).

[0108] For example, Figure 3 As shown, in response to the user's second trigger operation, the display displays an interactive interface 406. Interactive interface 406 includes an input box 407 for the gamma value adjustment interface. The user can directly enter any gamma value in input box 407 using a remote control, directly enter any gamma value in input box 407 through interactive interface 406, or directly enter any gamma value in input box 407 using physical touch buttons on the display, although this disclosure is not limited thereto.

[0109] For example, Figure 4 As shown, in response to the user's second trigger operation, the display displays an interactive interface 406. Interactive interface 406 includes an input box 407 and a drop-down menu 408 for the gamma value adjustment interface. The user can also trigger the drop-down menu 408 using a remote control. In this case, interactive interface 406 can display any gamma value, and the user can select any gamma value using the remote control, directly enter any gamma value in input box 407 through interactive interface 406, or directly enter any gamma value in input box 407 using the display's physical touch buttons, although this disclosure is not limited thereto.

[0110] Optionally, the controller is specifically configured to: obtain configuration parameters; obtain gamma setting values; obtain the input signal of the image; calculate a new gamma lookup table according to the gamma value and configuration parameters, and adjust the image in real time based on the current signal to achieve display brightness adjustment processing.

[0111] Optionally, the configuration parameters include: a maximum value of the input signal of the image, a maximum brightness value and a minimum brightness value of the image displayed on the display.

[0112] Optionally, the controller is specifically configured to: output brightness L out , the input signal X of the imagein , gamma value γ, maximum brightness L max , minimum brightness L min and the maximum value of the input signal X max Satisfy the following formula:

[0113]

[0114] In this application, after receiving a gamma value adjustment instruction, the controller responds to the received gamma value adjustment instruction by determining the gamma value corresponding to the gamma value adjustment instruction and adjusting the brightness of the display based on the gamma value. Because the gamma value can be any value, the controller can adjust the brightness of the display based on any gamma value, solving the technical problem that existing gamma values ​​cannot meet the growing needs of users and improving user experience.

[0115] Based on the above display device, the embodiment of the present application provides a display brightness adjustment method, such as Figure 5 As shown, the method includes: S501-S503.

[0116] S501: The controller receives a gamma value adjustment instruction.

[0117] Specifically, when adjusting the gamma value, the user may perform an input operation on a remote control of the display device, an interactive interface of the display, or a physical touch button of the display. In this case, the controller receives a gamma value adjustment instruction.

[0118] Optionally, when inputting a gamma value, the user may perform a first trigger operation on the remote control (e.g., the user performs a gamma value input operation on the remote control). In this case, the remote control sends a gamma value adjustment instruction to the controller in response to the user's first trigger operation. Accordingly, the controller receives the gamma value adjustment instruction sent by the remote control.

[0119] Optionally, the user may perform a second trigger operation on the display device (e.g., the user performs an operation on the display device to display an interactive interface) to cause the display to display the interactive interface. In this way, when the user inputs a gamma value, the gamma value input operation may be performed on the interactive interface displayed on the display. In this case, the controller receives a gamma value adjustment instruction in response to a third trigger operation performed by the user on the interactive interface of the display (e.g., the user performs a gamma value input operation on the interactive interface).

[0120] Optionally, when inputting the gamma value, the user may also perform a gamma value input operation on a physical touch key of the display. In this case, the controller receives the gamma value adjustment instruction in response to a third trigger operation performed by the user on the physical touch key of the display (e.g., the user performs a gamma value input operation on the physical touch key).

[0121] S502: The controller determines a gamma value corresponding to the received adjustment instruction in response to the adjustment instruction.

[0122] Specifically, after receiving the gamma value adjustment instruction, the controller responds to the received adjustment instruction and determines the gamma value corresponding to the adjustment instruction. The gamma value is an arbitrary value to meet the user's more precise requirements for the display device.

[0123] S503: The controller adjusts the brightness of the display according to the gamma value.

[0124] In response to the received adjustment instruction, after determining the gamma value corresponding to the adjustment instruction, the controller performs brightness adjustment processing on the display according to the gamma value.

[0125] Specifically, when adjusting the brightness of the display based on the gamma value, the controller first obtains an input signal of an image. It then obtains configuration parameters of the display device under different input signals. It then adjusts the brightness of the display based on the gamma value, the input signal, and the configuration parameters.

[0126] The configuration parameters include: the maximum value of the input signal of the image, the maximum brightness value and the minimum brightness value of the image displayed on the display.

[0127] For example, let's take an 8-bit input signal as an example. In this case, the grayscale value of the input image is 0-255, that is, the maximum value (255) and the minimum value (0) of the input signal of the image.

[0128] Furthermore, the output brightness L out , the input signal X of the image in , gamma value γ, maximum brightness L max , minimum brightness L min and the maximum value of the input signal X max Satisfy the following formula 1:

[0129]

[0130] In some embodiments of the present application, the controller includes two gamma modules. The first gamma module is configured to: perform brightness adjustment processing on the display according to a first gamma value, an input signal, and configuration parameters.

[0131] The first gamma value is a gamma value preset in the user menu of the controller, such as 1.8, 2.0, 2.2, 2.4, 2.6, etc. The preset gamma values ​​are several gamma values ​​commonly used by display devices. To facilitate calculation, the first gamma module only processes the gamma values ​​preset in the user menu of the controller.

[0132] Correspondingly, the second gamma module is configured to perform brightness adjustment processing on the display according to the second gamma value, the input signal and the configuration parameters.

[0133] The second gamma value can be any value other than the preset gamma value, such as 1.82, 2.35, etc. The above arbitrary gamma value is a gamma value input by the user according to the user's needs. With the development of display device technology, arbitrary gamma values ​​can meet the needs of more accurate image brightness under different display devices.

[0134] For example, Figure 6 The figure shows a linear relationship between input RGB values ​​and output RGB values, wherein the horizontal axis represents the input RGB values ​​and the vertical axis represents the output RGB values.

[0135] For example, when performing gamma value conversion, it is necessary to maintain constant color coordinates. This constant color coordinates can be achieved through the second gamma module and the display screen. In this way, the RGB values ​​of the first gamma module can be the same, eliminating the need for color coordinate correction, which can reduce the amount of calculation. At the same time, if the gamma values ​​of the second gamma module and the display screen are also a standard value (for example, 2.2), then the input signal of the first gamma module and the output brightness of the display device satisfy the following formula 2:

[0136]

[0137] Among them, L out is the output brightness, X in is the input signal, L max is the maximum brightness, L min is the minimum value, X max is the maximum value of the input signal.

[0138] The calculation is as follows:

[0139]

[0140]

[0141]

[0142] In determining X inuser Then, X inuser Substitute into Equation 2 to get the output brightness.

[0143] The controller can also use a table to find the output RGB value corresponding to the input RGB value.

[0144] For example, a table of input RGB values ​​and output RGB values ​​is shown in Table 1.

[0145] Table 1

[0146]

[0147]

[0148] In an embodiment of the present application, upon receiving a gamma value adjustment instruction, the controller determines a gamma value corresponding to the gamma value adjustment instruction and adjusts the brightness of the display based on the gamma value. Since the gamma value can be any value, the controller can adjust the brightness of the display based on any gamma value, resolving the technical issue that existing gamma values ​​cannot meet the growing needs of users and improving user experience.

[0149] Optional, combined Figure 5 ,like Figure 7 As shown, in the above S503, the specific method for the controller to adjust the brightness of the display according to the gamma value includes: S701-S703.

[0150] S701: The controller obtains an input signal of an image.

[0151] S702: The controller obtains configuration parameters.

[0152] S703: The controller adjusts the brightness of the display according to the gamma value, the input signal and the configuration parameters.

[0153] Optional, combined Figure 7 ,like Figure 8 As shown, in the above S703, the specific method for the controller to adjust the brightness of the display according to the gamma value, the input signal and the configuration parameters includes: S801-S802.

[0154] S801: The controller obtains the output brightness of the image when the display is turned on.

[0155] S802: The controller adjusts the brightness of the display according to the output brightness, gamma value, input signal and configuration parameters of the image when the display is turned on.

[0156] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer execution instructions are loaded and executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, computer, server or data center to another website, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more media that can be integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).

[0157] In some embodiments, as Figure 9 As shown, the display device includes at least a display panel, a system-on-a-chip (SoC), a memory, a processor, and a timer.

[0158] In which, the display panel can be the above-mentioned display, and its function is the same as that of the display; the system on chip can be the above-mentioned controller, and its function is the same as that of the controller; the processor here can also be part of the system on chip, used to store and run relevant algorithms for determining mura areas and determining demura compensation coefficients; the memory here is the same as the above-mentioned memory, and is also configured into two storage partitions, and the functions of the two storage partitions are the same as those of the first storage partition and the second storage partition mentioned above; the timer is configured to count the cumulative display time.

[0159] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

[0160] For ease of explanation, the above description has been made with reference to specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations are possible. The above embodiments are selected and described to better explain the principles and practical applications, so that those skilled in the art can better utilize the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A display device, characterized in that: include: A display, wherein the display is used to display images; A controller configured to: receive a gamma value adjustment instruction; and in response to the received adjustment instruction, determine a second gamma value corresponding to the adjustment instruction; The second gamma value is an arbitrary value; Obtaining an input signal of an image; Acquire configuration parameters; the configuration parameters include: a maximum value of the input signal of the image, a maximum brightness value and a minimum brightness value of the image displayed by the display; performing brightness adjustment processing on the display according to the gamma value, the input signal and the configuration parameter; The controller includes a first gamma module and a second gamma module, wherein the first gamma module is used to adjust the brightness of the display according to a first gamma value, an input signal and configuration parameters; the first gamma value is a preset gamma value; and the RGB values ​​of the first gamma module adopt the same value; The second gamma module is used to adjust the brightness of the display according to the second gamma value, the input signal and the configuration parameters; the second gamma module is also used to work together with the display to keep the color coordinates of the image constant, so that the first gamma module does not need to perform color coordinate correction.

2. The display device according to claim 1, wherein Also includes: Remote control; The remote controller is specifically configured to send the gamma value adjustment instruction to the controller in response to a first trigger operation of the user.

3. The display device according to claim 2, wherein The display is further configured to: In response to the second triggering operation of the user, an interactive interface is displayed.

4. The display device according to claim 3, wherein The controller is specifically configured to: receiving the gamma value adjustment instruction in response to a third trigger operation by the user on the interactive interface or the physical touch button of the display; Alternatively, the gamma value adjustment instruction sent by the remote controller is received.

5. A display device, characterized in that: include: A display, wherein the display is used to display images; A controller configured to: receive a gamma value adjustment instruction; and in response to the received adjustment instruction, determine a second gamma value corresponding to the adjustment instruction; The second gamma value is an arbitrary value; Obtaining an input signal of an image; Acquire configuration parameters; the configuration parameters include: a maximum value of the input signal of the image, a maximum brightness value and a minimum brightness value of the image displayed by the display; performing brightness adjustment processing on the display according to the gamma value, the input signal and the configuration parameter; The controller includes a first gamma module and a second gamma module; The first gamma module is configured to: perform brightness adjustment processing on the display according to a first gamma value, an input signal and a configuration parameter; the first gamma value is a preset gamma value; the RGB values ​​of the first gamma module adopt the same value; The second gamma module is configured to: adjust the brightness of the display according to a second gamma value, the input signal and the configuration parameters, the first gamma value is a preset gamma value, and the second gamma value is a gamma value input by the user; the second gamma module is also used to work together with the display to keep the color coordinates of the image constant, so that the first gamma module does not need to perform color coordinate correction.

6. A method for adjusting display brightness, characterized in that: Controllers for display devices include: Receive gamma value adjustment instructions; In response to the received adjustment instruction, determining a second gamma value corresponding to the adjustment instruction; the second gamma value is an arbitrary value; Obtaining an input signal of an image; Acquiring configuration parameters; the configuration parameters include: a maximum value of an input signal of the image, a maximum brightness value and a minimum brightness value of the image displayed by the display; the display device includes the display; performing brightness adjustment processing on the display according to the gamma value, the input signal and the configuration parameter; The controller includes a first gamma module and a second gamma module, wherein the first gamma module is used to adjust the brightness of the display according to a first gamma value, an input signal and configuration parameters; the first gamma value is a preset gamma value; and the RGB values ​​of the first gamma module adopt the same value; The second gamma module is used to adjust the brightness of the display according to the second gamma value, the input signal and the configuration parameters; the second gamma module is also used to work together with the display to keep the color coordinates of the image constant, so that the first gamma module does not need to perform color coordinate correction.

7. The display brightness adjustment method according to claim 6, wherein: The receiving of the gamma value adjustment instruction specifically includes: receiving the gamma value adjustment instruction in response to a first trigger operation performed by a user on an interactive interface or a physical touch button of the display; Alternatively, the gamma value adjustment instruction sent by a remote controller is received.

8. The display brightness adjustment method according to claim 6 or 7, characterized in that: The performing brightness adjustment processing on the display according to the gamma value specifically includes: Obtaining an input signal of an image; Acquire configuration parameters; the configuration parameters include: a maximum value of the input signal of the image, a maximum brightness value and a minimum brightness value of the image displayed by the display; The display is subjected to brightness adjustment processing according to the gamma value, the input signal and the configuration parameter.

Images