CN114913796A

CN114913796A - Display device and display brightness adjustment method

Info

Publication number: CN114913796A
Application number: CN202110185106.3A
Authority: CN
Inventors: 沈海杰; 王烨东; 刁玉洁
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2021-02-10
Filing date: 2021-02-10
Publication date: 2022-08-16

Abstract

The embodiment of the invention provides display equipment and a display brightness adjusting method, relates to the technical field of display, and can solve the technical problem that the existing gamma cannot meet the increasing requirements of users. The method comprises the following steps: after receiving the gamma value adjusting instruction, the controller responds to the received gamma value adjusting instruction, determines the gamma value corresponding to the gamma value adjusting instruction, and performs brightness adjusting processing on the display according to the gamma value. Wherein the gamma value is an arbitrary value.

Description

Display device and display brightness adjustment method

Technical Field

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

Background

With the development of lcd tvs, the requirements of users for the display quality of the lcd tvs are gradually increasing. Currently, users typically adjust the display quality of an image by adjusting the gamma value (gamma) of the display.

However, the current gamma usually has only a few fixed parameters (e.g., 1.8, 2.0, 2.2, etc.). As the user's demand for image display quality increases, the existing gamma cannot meet the increasing demand of the user.

Disclosure of Invention

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 increasing requirements of users.

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 controller and a display;

the display is used for displaying pictures;

a controller configured to: receiving a gamma value adjusting instruction; in response to the received adjustment instruction, determining a gamma value corresponding to the adjustment instruction; according to the gamma value, brightness adjustment processing is carried out on the display; wherein the gamma value is an arbitrary value.

In a second aspect, a method for adjusting display brightness is provided, including:

receiving a gamma value adjusting instruction;

in response to the received adjustment instruction, determining a gamma value corresponding to the adjustment instruction;

according to the gamma value, brightness adjustment processing is carried out on the display; wherein, the gamma value is any value.

As can be seen from the above, after receiving the gamma value adjustment command, the controller determines the gamma value corresponding to the gamma value adjustment command in response to the received gamma value adjustment command, and performs the brightness adjustment process on the display according to the gamma value. Because the gamma value is any value, the controller can adjust the brightness of the display according to the gamma value of any value, the technical problem that the existing gamma value cannot meet the increasing requirements of users is solved, and the user experience is provided.

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 schematic structural diagram of another display device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another display device according to an embodiment of the present invention;

fig. 5 is a flowchart illustrating a method for adjusting display brightness according to an embodiment of the present invention;

FIG. 6 is a diagram illustrating a linear relationship between input RGB values and output RGB values according to an embodiment of the present invention;

fig. 7 is a second flowchart illustrating a method for adjusting display brightness according to an embodiment of the present invention;

fig. 8 is a third schematic flowchart of a display brightness adjustment method according to an embodiment of the present invention;

fig. 9 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 is a clear and complete description of exemplary embodiments of the present application with reference to the attached drawings in exemplary embodiments of the present application, and it is apparent that the exemplary embodiments described 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 short distance. The electronic device is generally connected to the electronic device by using an infrared and/or Radio Frequency (RF) signal and/or bluetooth, 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, and/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, the user may operate the display device 200 through the mobile terminal 300 and the control apparatus 100.

In some embodiments, the control device 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 the embodiment of the present application, the control apparatus 100 is configured to: in response to an input operation by a user, an input instruction corresponding to the input operation is transmitted to the controller.

Specifically, when adjusting the brightness of the image received by the display device 200, the user may perform an input operation on the control apparatus 100 to input a gamma value corresponding to the brightness that the user wants to adjust. In this case, the control device 100 transmits an input instruction corresponding to the input operation to the controller in response to the input operation by the user.

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 contents 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 make a communication connection 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 interacting with an Electronic Program Guide (EPG). The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers. Other web service content such as video-on-demand and advertising services are provided through the server 400.

In some embodiments, the display device 200 further comprises: a communicator (not shown in fig. 1). The communicator is configured to: receives an image from the server 400, and transmits the image to the controller, so that the controller controls the display to display a screen including the image.

The display device 200 may be a liquid crystal display, an organic light-emitting diode (OLED) display, or a projection display device. The particular 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 component for presenting a picture, and a driving component 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, where 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, when the temperature is high, the display device 200 may be adjusted to display a color temperature of the image in a cool tone, or when the temperature is low, the display device 200 may be adjusted to display a warm tone.

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 of 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, and may perform modulation and demodulation processes 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 control signals according to 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 type 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 after the received broadcast television signals are modulated and demodulated to the main device, and the main device 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 device 200 starts to power up, and the CPU 254 executes the system boot instructions in the ROM 252 and copies the temporary data of the operating system stored in the memory into the RAM 251 in order to boot 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, so as to start or run 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 demultiplexed video signal, including decoding, scaling and the like.

And an image synthesis module, such as an image synthesizer, configured to perform superposition and mixing processing on the Graphical User Interface (GUI) signal generated by the graphical generator according to the user input or the GUI signal and the video image after the scaling processing, 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 provided, 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 a 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 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 delivers 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 input user commands via a Graphical User Interface (GUI) displayed on the display 275, and the user interface 265 may receive user input commands via 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. The interface element may be an icon, a window, a control, or the like, displayed in a 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, and a Widget.

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 performing analysis and management.

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.

Gamma values relate to the image quality of the display and are an auxiliary function for the brightness and contrast of the display. Gamma refers to the relationship between input values and the brightness at the output of the display in printing technology or image processing, which affects the distribution of hue between highlights and shades on a document.

As described in the background, current gammas typically have only a few fixed parameters (e.g., 1.8, 2.0, 2.2, etc.). As the user's demand for image display quality increases, the existing gamma cannot meet the increasing demand of the user.

In view of the foregoing problems, an embodiment of the present application provides a display device and a display brightness adjustment method, where after 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 performs brightness adjustment processing on the display according to the gamma value. Wherein the gamma value is an arbitrary value.

With reference to fig. 1 or fig. 2, the display brightness adjusting method provided in the embodiment of the present application is applicable to a display device. The display device includes: a controller (e.g., controller 250 in fig. 2), a display (e.g., display 275 in fig. 2), a communicator (e.g., communicator 220 in fig. 2), and a remote control (e.g., remote control 100 in fig. 1). The controller is in communication connection with the display, the communicator and the remote controller respectively.

The controller is configured to: receiving a gamma value adjusting instruction; in response to the received adjustment instruction, determining a gamma value corresponding to the adjustment instruction; according to the gamma value, brightness adjustment processing is carried out on the display; wherein, the gamma value is any value.

The display is used for displaying pictures.

Optionally, the communicator is configured to: an image or video signal is received from a signal generator or multimedia content device.

Upon receiving an image or video signal, a tuner demodulator (e.g., tuner demodulator 210 in fig. 2) decodes the signal. A video processor (e.g., video processor 270 of fig. 2) then performs image processing on the decoded signal. Subsequently, the display displays the processed image.

Optionally, the remote control appliance is configured to: and sending a gamma value adjusting instruction to the controller in response to a first triggering operation of a user. In this case, the controller is configured to: and receiving a gamma value adjusting instruction sent by a remote controller.

Specifically, when the user inputs a gamma value, a first trigger operation may be performed on the remote controller (for example, the user performs a gamma value input operation on the remote controller). In this case, the remote controller transmits a gamma value adjustment instruction to the controller in response to a first trigger operation by the user. Correspondingly, the controller receives a gamma value adjusting instruction sent by the remote controller.

Optionally, the display is further configured to: and responding to a second trigger operation of the user, and displaying the interactive interface. In this case, the controller is configured to: and receiving a gamma value adjusting instruction in response to a third trigger operation of the user on the interactive interface of the display.

Specifically, 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 the interactive interface), so that the display displays the interactive interface. In this way, when the user inputs the gamma value, the gamma value input operation can be performed on the interactive interface displayed by the display. In this case, the controller receives the gamma value adjustment instruction in response to a third trigger operation by the user on the interactive interface of the display (for example, the user performs a gamma value input operation on the interactive interface).

Optionally, when the user inputs the gamma value, the gamma value input operation may be performed 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 by the user on the physical touch key of the display (for example, the user performs a gamma value input operation on the physical touch key).

Illustratively, as shown in FIG. 3, the display displays an interactive interface 406 after responding to a second triggering operation by the user. The interactive interface 406 includes an input box 407 of the gamma adjustment interface. The user may directly input any gamma value in the input box 407 through a remote controller, may also directly input any gamma value in the input box 407 through the interactive interface 406, and may also directly input any gamma value in the input box 407 through a physical touch key of a display, which is not limited in this disclosure.

Illustratively, as shown in FIG. 4, the display displays an interactive interface 406 after responding to a second trigger action by the user. The interactive interface 406 includes an input box 407 and a pull-down menu 408 of the gamma value adjustment interface. The user may also perform a trigger operation on the pull-down menu 408 through a remote control. In this case, the interactive interface 406 may display any gamma value, the user may select any gamma value through a remote controller, may directly input any gamma value in the input box 407 through the interactive interface 406, and may directly input any gamma value in the input box 407 through a physical touch key of the display, which is not limited in this disclosure.

Optionally, the control appliance is configured to: acquiring configuration parameters; acquiring a gamma set value; acquiring an input signal of an image; and calculating a new gamma lookup table according to the gamma value and the configuration parameters, and adjusting the image in real time based on the current signal to realize the brightness adjustment processing of the display.

Optionally, the configuration parameters include: the maximum value of the input signal of the image, the maximum value of the brightness of the display image and the minimum value of the brightness.

Optionally, the control appliance is configured to: output luminance L _out Input signal X of image _in Gamma value gamma, maximum brightness value L _max Minimum value of luminance L _min And the maximum value X of the input signal _max Satisfies the following formula:

in the application, after receiving the gamma value adjusting command, the controller responds to the received gamma value adjusting command, determines the gamma value corresponding to the gamma value adjusting command, and performs brightness adjustment processing on the display according to the gamma value. Because the gamma value is any value, the controller can adjust the brightness of the display according to the gamma value of any value, the technical problem that the existing gamma value cannot meet the increasing requirements of users is solved, and the user experience is provided.

Based on the display device, an embodiment of the present application provides a display brightness adjustment method, as shown in fig. 5, the method includes: S501-S503.

S501, the controller receives a gamma value adjusting instruction.

Specifically, when the gamma value is adjusted, the user may perform an input operation on a remote controller of the display device, an interactive interface of the display, or a physical touch key of the display. In this case, the controller receives a gamma value adjustment command.

Alternatively, the user may perform a first trigger operation on the remote controller when inputting the gamma value (e.g., the user performs a gamma value input operation on the remote controller). In this case, the remote controller transmits a gamma value adjustment instruction to the controller in response to a first trigger operation by the user. Correspondingly, the controller receives a gamma value adjusting instruction sent by the remote controller.

Optionally, the user may perform a second trigger operation on the display device (for example, the user performs an operation of displaying the interactive interface on the display device), so that the display displays the interactive interface. In this way, when the user inputs the gamma value, the gamma value input operation can be performed on the interactive interface displayed by the display. In this case, the controller receives the gamma value adjustment instruction in response to a third trigger operation by the user on the interactive interface of the display (for example, the user performs a gamma value input operation on the interactive interface).

S502, the controller responds to the received adjusting instruction and determines the gamma value corresponding to the adjusting instruction.

Specifically, after receiving the gamma value adjusting command, the controller determines the gamma value corresponding to the adjusting command in response to the received adjusting command. Wherein, gamma value is arbitrary numerical value to satisfy user's demand more accurate to display device.

S503, the controller performs brightness adjustment processing on the display according to the gamma value.

After determining a gamma value corresponding to the adjustment instruction in response to the received adjustment instruction, the controller performs brightness adjustment processing on the display according to the gamma value.

Specifically, when the controller performs brightness adjustment processing on the display according to the gamma value, the controller firstly acquires an input signal of an image. And then acquiring configuration parameters of the display device under different input signals. And then, performing brightness adjustment processing on the display according to the gamma value, the input signal and the configuration parameter.

Wherein, the configuration parameters comprise: the maximum value of the input signal of the image, the maximum value of the brightness of the display image and the minimum value of the brightness.

Illustratively, the input signal is 8 bits. In this case, the gradation value of the input image is 0 to 255. I.e. the maximum (255) and minimum (0) of the input signal of the image.

Further, the output luminance L _out Input signal X of image _in Gamma value gamma, maximum brightness value L _max Minimum value of luminance L _min And the maximum value X of the input signal _max Satisfies the following formula 1:

in some embodiments of the present application, two gamma modules are included in the controller. The first gamma module is configured to: and performing brightness adjustment processing on the display according to the first gamma value, the input signal and the configuration parameter.

Wherein the first gamma value is a gamma value preset in a 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 the display device, and for convenience of calculation, the first gamma module only processes the gamma values preset in the user menu of the controller.

Accordingly, the second gamma module is configured to: and performing brightness adjustment processing on the display according to the second gamma value, the input signal and the configuration parameter.

Wherein the second gamma value may be any value other than the preset gamma value, for example, 1.82, 2.35, etc. The arbitrary gamma value is a gamma value input by a user according to requirements. With the development of display device technology, gamma values of any value can satisfy the more accurate brightness of images under different display devices.

Illustratively, fig. 6 shows a linear relationship of input RGB values to output RGB values. Where the abscissa represents the input RGB value and the ordinate represents the output RGB value.

Exemplarily, the color coordinate needs to be kept constant while the gamma value conversion is performed, and the color coordinate is kept constant through the second gamma module and the display screen, in this way, the RGB value of the first gamma module only needs to be the same value, and the correction of the color coordinate is not needed, so that the calculation amount can be reduced. Meanwhile, if the gamma values of the second gamma module and the display screen are also standard values (e.g., 2.2), the input signal of the first gamma module and the output brightness of the display device satisfy the following formula 2:

wherein L is _out To output luminance, X _in Is an input signal, L _max Is the maximum value of brightness, L _min Is a minimum value, X _max Is the input signal maximum.

The calculation method is as follows:

in the determination of X _inuser Then, X is put in _inuser Substituting into formula 2 to obtain the output brightness.

The controller may also look up the output RGB values corresponding to the input RGB values in a table manner.

Illustratively, a table of input RGB values and output RGB values is shown in table 1.

TABLE 1

In the embodiment of the application, after receiving the gamma value adjusting instruction, the controller responds to the received gamma value adjusting instruction, determines the gamma value corresponding to the gamma value adjusting instruction, and performs brightness adjustment processing on the display according to the gamma value. Because the gamma value is any value, the controller can adjust the brightness of the display according to the gamma value of any value, the technical problem that the existing gamma value cannot meet the increasing requirements of users is solved, and the user experience is provided.

Optionally, with reference to fig. 5, as shown in fig. 7, in the above S503, a specific method for the controller to perform brightness adjustment processing on the display according to the gamma value includes: S701-S703.

S701, the controller acquires an input signal of an image.

S702, the controller acquires configuration parameters.

And S703, the controller performs brightness adjustment processing on the display according to the gamma value, the input signal and the configuration parameter.

Optionally, with reference to fig. 7, as shown in fig. 8, in the above S703, the specific method for the controller to perform brightness adjustment processing on the display according to the gamma value, the input signal, and the configuration parameter includes: S801-S802.

S801, the controller acquires the output brightness of the image at the starting time of the display.

S802, the controller adjusts the brightness of the display according to the output brightness, the gamma value, the input signal and the configuration parameter of the image at the starting time of the display.

In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may 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. The processes or functions according to the embodiments of the present application are generated in whole or in part when the computer-executable instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. Computer-readable storage media can be any available media that can be accessed by a computer or can comprise one or more data storage devices, such as servers, data centers, and the like, that can be integrated with the media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

In some embodiments, as shown in fig. 9, 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 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 compensation coefficients; 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 above-mentioned first memory partition and second memory partition; 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, those of ordinary skill in the art will understand 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 for displaying a picture;

a controller configured to: receiving a gamma value adjusting instruction; in response to a received adjustment instruction, determining a gamma value corresponding to the adjustment instruction; according to the gamma value, brightness adjustment processing is carried out on the display; wherein the gamma value is an arbitrary value.

2. The display device according to claim 1, further comprising: a remote controller;

the remote control appliance is configured to: and sending the gamma value adjusting instruction to the controller in response to a first trigger operation of a user.

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

and responding to a second trigger operation of the user, and displaying an interactive interface.

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

responding to a third trigger operation of a user on the interactive interface or the physical touch key of the display, and receiving the gamma value adjusting instruction;

or receiving the gamma value adjusting instruction sent by the remote controller.

5. The display device according to any one of claims 1 to 4, wherein the controller is configured to:

acquiring an input signal of an image;

acquiring configuration parameters; the configuration parameters include: the maximum value of the input signal of the image, the maximum value of the brightness of the image displayed by the display and the minimum value of the brightness;

and performing brightness adjustment processing on the display according to the gamma value, the input signal and the configuration parameter.

6. A display device, comprising:

a display for displaying a picture;

a controller including a first gamma module and a second gamma module;

the first gamma module is configured to: according to the first gamma value, the input signal and the configuration parameter, brightness adjustment processing is carried out on the display; the second gamma module is configured to: and performing brightness adjustment processing on the display according to a second gamma value, the input signal and the configuration parameter, wherein the first gamma value is a preset gamma value, and the second gamma value is a gamma value input by a user.

7. A display brightness adjustment method is characterized by comprising the following steps:

receiving a gamma value adjusting instruction;

in response to a received adjustment instruction, determining a gamma value corresponding to the adjustment instruction;

according to the gamma value, brightness adjustment processing is carried out on the display; wherein the gamma value is an arbitrary value.

8. The method of claim 7, wherein the receiving the gamma value adjustment command specifically comprises:

receiving the gamma value adjusting instruction in response to a first trigger operation of a user on an interactive interface or a physical touch key of a display;

9. The method according to claim 7 or 8, wherein the performing the brightness adjustment process on the display according to the gamma value specifically includes:

acquiring an input signal of an image;