Display device and method for adjusting backlight

Abstract

The invention provides a display device and a method for adjusting backlight. After the backlight adjusting function of the display device is started, the backlight brightness can be automatically adjusted along with the brightness change of the environment where the display device is located. Wherein the display equipment can calculate a basic backlight brightness value, namely the first backlight brightness value, to be adjusted according to the basic information. Furthermore, the display device can correct the first backlight brightness value through the correction information to obtain a second backlight brightness value better meeting the user demand. In this way, when the display device controls the display to display according to the second backlight brightness value, the user requirement can be better met, and the user experience feeling is improved.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular to a display device and a method for adjusting backlight. Background Art

[0002] Display devices refer to terminal devices that can output specific display images, which can be terminal devices such as smart TVs, mobile terminals, smart advertising screens, projectors, etc. Taking smart TVs as an example, smart TVs are based on Internet application technology, have open operating systems and chips, have open application platforms, can realize two-way human-computer interaction functions, and are TV products that integrate multiple functions such as audio and video, entertainment, and data to meet the diverse and personalized needs of users.

[0003] Backlight refers to the light source behind the display device, which is used to illuminate the screen. The brightness of the backlight can be represented by the backlight brightness value. The higher the backlight brightness value, the higher the backlight brightness, and the lower the backlight brightness value, the lower the backlight brightness. When the display device uses the same backlight brightness value, if the brightness of the environment in which the display device is located is low, the user will feel that the brightness of the display screen is higher. If the brightness of the environment in which the display device is located is high, the user will feel that the brightness of the display screen is lower. When the brightness of the display device in the environment is too high or too low, the user may feel that the brightness of the display screen is too dazzling or cannot see the display screen clearly, resulting in the brightness of the display screen failing to meet the user's viewing needs.

[0004] In order to meet the viewing needs of users, display devices can be equipped with light sensors, which sense the brightness of the environment and automatically adjust the backlight brightness value according to the brightness of the environment, so that the backlight brightness can meet the viewing needs of users. However, the cost of light sensors is high, and some display devices that are not equipped with light sensors will not be able to know the brightness of the environment, and thus cannot automatically adjust the backlight brightness value according to the brightness of the environment. Summary of the invention

[0005] The present application provides a display device and a method for adjusting backlight, which can calculate a first backlight brightness value based on basic information, and then correct the first backlight brightness value through correction information to obtain a second backlight brightness value that better meets user needs.

[0006] In a first aspect, the present application provides a display device, comprising: a display, configured to: display according to a set backlight brightness value;

[0007] The controller is configured as:

[0008] After the backlight adjustment function is turned on, basic information and correction information of the display device are obtained, wherein, when the geographical location of the display device remains unchanged, the basic information is immutable information affecting the backlight brightness of the display device, and the correction information is variable information affecting the backlight brightness of the display device;

[0009] Calculating a first backlight brightness value according to the basic information;

[0010] Correcting the first backlight brightness value according to the correction information and a correction relationship corresponding to the correction information to obtain a second backlight brightness value;

[0011] The display is controlled to display according to the second backlight brightness value.

[0012] The above technical solution has the following beneficial effects or advantages:

[0013] After the display device turns on the backlight adjustment function, it can automatically adjust the backlight brightness according to the brightness changes of the environment. Among them, the display device can calculate a basic backlight brightness value to be adjusted according to the basic information, that is, the first backlight brightness value. Furthermore, the display device can correct the first backlight brightness value through the correction information to obtain a second backlight brightness value that better meets the user's needs. In this way, when the display device controls the display to display according to the second backlight brightness value, it can better meet the user's needs and improve the user's experience.

[0014] In some embodiments of the present application, the controller corrects the first backlight brightness value according to the correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value, and is specifically configured as follows:

[0015] If a plurality of correction information are obtained, the first backlight brightness value is corrected according to the specified order of the plurality of correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value;

[0016] The correction result corresponding to the previous correction information in the specified order is used as the correction basis of the current correction information, and the correction result is corrected according to the current correction information and the correction relationship corresponding to the current correction information.

[0017] The above technical solution has the following beneficial effects or advantages:

[0018] The display device can correct the first backlight brightness value based on multiple correction information so that the corrected second backlight brightness value can meet the user's needs in multiple dimensions / multiple aspects. In the process of correcting the first backlight brightness value using multiple correction information, the display device uses each correction information in sequence in a specified order to correct it, which can ensure the orderly progress of the correction process, thereby ensuring the accuracy of the correction result.

[0019] In some embodiments of the present application, the correction information includes first correction information, and the first correction information includes architectural information of a space where the display device is located and placement information of the display device in the space;

[0020] After the backlight adjustment function is turned on, the controller obtains basic information and correction information of the display device, and is specifically configured as follows:

[0021] Get the first parameter set by the user;

[0022] Acquire the building information and the placement information from the first parameter;

[0023] The controller corrects the first backlight brightness value according to the correction information and the correction relationship corresponding to the correction information to obtain a second backlight brightness value, and is specifically configured as follows:

[0024] According to the first corresponding relationship, obtaining the light intensity corresponding to the building information and the placement information, wherein the first corresponding relationship includes the corresponding relationship between the building information, the placement information and the light intensity;

[0025] According to the light intensity, a brightness adjustment factor corresponding to the building information and the placement information is obtained, wherein the stronger the light intensity, the smaller the brightness adjustment factor; and the weaker the light intensity, the larger the brightness adjustment factor;

[0026] Acquire a first correction relationship corresponding to the first correction information;

[0027] The first backlight brightness value is corrected according to the brightness adjustment factor and the first correction relationship to obtain the second backlight brightness value.

[0028] The above technical solution has the following beneficial effects or advantages:

[0029] The correction information may include first correction information, and the display device may accurately identify the ambient brightness of the space where the display device is located through the architectural information of the space where the display device is located and the placement information of the space where the display device is located. In this way, the second backlight brightness value obtained after correcting the first backlight brightness value through the first correction information may be more consistent with the ambient brightness of the space where the display device is located. Therefore, displaying according to the second backlight brightness value may be more consistent with the user's need to use the display device in the space.

[0030] In some embodiments of the present application, the correction information includes second correction information provided by the terminal device, and the second correction information includes the ambient brightness of the space where the terminal device is located;

[0031] The display device further includes:

[0032] A communicator, configured to: communicate with the terminal device;

[0033] After the backlight adjustment function is turned on, the controller obtains basic information and correction information of the display device, and is specifically configured as follows:

[0034] Acquire the ambient brightness from the terminal device;

[0035] The controller corrects the first backlight brightness value according to the correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value, and is specifically configured as follows:

[0036] Acquire a second correction relationship corresponding to the second correction information;

[0037] The first backlight brightness value is corrected according to the ambient brightness and the second correction relationship to obtain the second backlight brightness value.

[0038] The above technical solution has the following beneficial effects or advantages:

[0039] The display device can obtain the ambient brightness of the space where the terminal device is located through the terminal device, and use the ambient brightness as the ambient brightness of the space where the display device is located. In this way, the terminal device can be responsible for monitoring the ambient brightness, and the display device can quickly obtain the second correction information by communicating with the terminal device, thereby reducing the task of the display device. The second backlight brightness value obtained by correcting the first backlight brightness value with the second correction information can be more consistent with the ambient brightness of the space where the display device is located. Therefore, displaying according to the second backlight brightness value can better meet the needs of users using the display device in the space.

[0040] In some embodiments of the present application, the correction information includes third correction information provided by a light source device, and the third correction information includes brightness information of the light source device;

[0041] The display device further includes:

[0042] A communicator, configured to: communicate with the light source device;

[0043] After the backlight adjustment function is turned on, the controller obtains basic information and correction information of the display device, and is specifically configured as follows:

[0044] Acquire the brightness information from the light source device;

[0045] The controller corrects the first backlight brightness value according to the correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value, and is specifically configured as follows:

[0046] Acquire a third correction relationship corresponding to the third correction information;

[0047] The first backlight brightness value is corrected according to the brightness information and the third correction relationship to obtain the second backlight brightness value.

[0048] The above technical solution has the following beneficial effects or advantages:

[0049] When the light source device is turned on, its brightness information is an important factor affecting the ambient brightness of the space in which it is located. The display device can directly obtain the brightness information from the light source device, and use it as the third correction information to correct the first backlight brightness value to obtain the second backlight brightness value. In this way, the second backlight brightness value corrected with reference to the brightness information of the light source device can be more consistent with the ambient brightness of the space where the display device is located. Therefore, displaying according to the second backlight brightness value can better meet the needs of users using the display device in the space.

[0050] In some embodiments of the present application, the correction information includes fourth correction information, and the fourth correction information includes an initial backlight brightness value set by a user;

[0051] After the backlight adjustment function is turned on, the controller obtains basic information and correction information of the display device, and is specifically configured as follows:

[0052] Acquire the initial backlight brightness value;

[0053] The controller corrects the first backlight brightness value according to the correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value, and is specifically configured as follows:

[0054] Calculating a difference between the initial backlight brightness value and the first backlight brightness value;

[0055] Acquire a fourth correction relationship corresponding to the fourth correction information;

[0056] The first backlight brightness value is corrected according to the difference and the fourth correction relationship to obtain the second backlight brightness value.

[0057] The above technical solution has the following beneficial effects or advantages:

[0058] The initial backlight brightness value set by the user can reflect the user's preference for the backlight brightness value. The display device uses the initial backlight brightness value as the fourth correction information to correct the first backlight brightness value to obtain a second backlight brightness value that is more in line with the user's preference for the backlight brightness value. Therefore, displaying according to the second backlight brightness value can be more in line with the user's preference for the backlight brightness value.

[0059] In some embodiments of the present application, the correction information includes fifth correction information, and the fifth correction information includes a program type;

[0060] After the backlight adjustment function is turned on, the controller obtains basic information and correction information of the display device, and is specifically configured as follows:

[0061] Get the target program type of the currently playing program;

[0062] The controller corrects the first backlight brightness value according to the correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value, and is specifically configured as follows:

[0063] According to the second corresponding relationship, obtaining the target brightness adjustment parameter corresponding to the target program type, wherein the second corresponding relationship includes a corresponding relationship between the program type and the brightness adjustment parameter;

[0064] Acquire a fifth correction relationship corresponding to the fifth correction information;

[0065] The first backlight brightness value is corrected according to the target brightness adjustment parameter and the fifth correction relationship to obtain the second backlight brightness value.

[0066] The above technical solution has the following beneficial effects or advantages:

[0067] Different program types may have different screen brightness. The brightness of the display screen that the user ultimately feels is a comprehensive presentation of the screen brightness and the backlight brightness. Therefore, by using the program type as the fifth correction information, the brightness of the current screen can be accurately identified, and then the first backlight brightness value can be corrected based on the screen brightness. The comprehensive presentation of the second backlight brightness value obtained after correction and the brightness of the current screen will better meet the user's demand for the brightness of the display screen.

[0068] In some embodiments of the present application, after the backlight adjustment function is turned on, the controller obtains the basic information and correction information of the display device, and is specifically configured as follows:

[0069] Acquire size information in the basic information, where the size information corresponds to the display;

[0070] Acquire positioning information in the basic information, where the positioning information is used to represent the geographical location of the display device;

[0071] According to the positioning information, acquiring time information and weather information in the basic information, wherein both the time information and the weather information correspond to the geographical location;

[0072] The controller calculates the first backlight brightness value according to the basic information, and is specifically configured as follows:

[0073] Obtaining adjustment parameters and weighting coefficients corresponding to the basic information;

[0074] A weighted calculation is performed according to the adjustment parameter and the weighting coefficient to obtain the first backlight brightness value.

[0075] The above technical solution has the following beneficial effects or advantages:

[0076] The display device uses the size information of the display, the geographical location, the time and weather corresponding to the geographical location as basic information, and can calculate a basic backlight brightness value to be used by the display device, that is, a first backlight brightness value. The first backlight brightness value can match the large environment where the display device is located, and can conform to the device attributes of the display device. In this way, a more accurate backlight brightness value basis can be provided for the subsequent correction process.

[0077] In a second aspect, the present application further provides a method for adjusting backlight, which is applied to a display device as described in any one of the first aspects, and the method comprises:

[0078] After the backlight adjustment function is turned on, basic information and correction information of the display device are obtained, wherein, when the geographical location of the display device remains unchanged, the basic information is immutable information affecting the backlight brightness of the display device, and the correction information is variable information affecting the backlight brightness of the display device;

[0079] Calculating a first backlight brightness value according to the basic information;

[0080] Correcting the first backlight brightness value according to the correction information and a correction relationship corresponding to the correction information to obtain a second backlight brightness value;

[0081] Display is performed according to the second backlight brightness value.

[0082] The above technical solution has the following advantages or beneficial effects:

[0083] After the display device turns on the backlight adjustment function, it can automatically adjust the backlight brightness according to the brightness changes of the environment. Among them, the display device can calculate a basic backlight brightness value to be adjusted according to the basic information, that is, the first backlight brightness value. Furthermore, the display device can correct the first backlight brightness value through the correction information to obtain a second backlight brightness value that better meets the user's needs. In this way, when the display device controls the display to display according to the second backlight brightness value, it can better meet the user's needs and improve the user's experience.

[0084] In some embodiments of the present application, the step of correcting the first backlight brightness value according to the correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value includes:

[0085] If a plurality of correction information are obtained, the first backlight brightness value is corrected according to the specified order of the plurality of correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value;

[0086] The correction result corresponding to the previous correction information in the specified order is used as the correction basis of the current correction information, and the correction result is corrected according to the current correction information and the correction relationship corresponding to the current correction information.

[0087] The above technical solution has the following advantages or beneficial effects:

[0088] The display device can correct the first backlight brightness value based on multiple correction information so that the corrected second backlight brightness value can meet the user's needs in multiple dimensions / multiple aspects. In the process of correcting the first backlight brightness value using multiple correction information, the display device uses each correction information in sequence in a specified order to correct it, which can ensure the orderly progress of the correction process, thereby ensuring the accuracy of the correction result. BRIEF DESCRIPTION OF THE DRAWINGS

[0089] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0090] Figure 1 A schematic diagram of an operation scenario between a display device 200 and a control device 100 in an embodiment of the present application;

[0091] Figure 2 It is a hardware configuration block diagram of the display device 200 in the embodiment of the present application;

[0092] Figure 3 This is a configuration diagram of an operating system of a display device 200 in an embodiment of the present application;

[0093] Figure 4 A schematic diagram of a switch for a backlight adjustment function in an embodiment of the present application;

[0094] Figure 5 A flow chart of adjusting backlight of a display device 200 provided in an embodiment of the present application;

[0095] Figure 6 A flowchart of the display device 200 obtaining basic information provided by an embodiment of the present application;

[0096] Figure 7 A schematic diagram of a timing sequence for adjusting backlight of a display device 200 provided in an embodiment of the present application;

[0097] Figure 8 Another flowchart of adjusting the backlight of the display device 200 provided in an embodiment of the present application;

[0098] Fig. 9 Another timing diagram of adjusting the backlight of the display device 200 provided in an embodiment of the present application;

[0099] Fig.10 A flow chart of a display device 200 provided in an embodiment of the present application correcting a first backlight brightness value through first correction information;

[0100] Fig.11 A flow chart of a display device 200 provided in an embodiment of the present application correcting a first backlight brightness value through second correction information;

[0101] Fig.12 A flow chart of a display device 200 provided in an embodiment of the present application correcting a first backlight brightness value through third correction information;

[0102] Fig.13 A flow chart of a display device 200 provided in an embodiment of the present application correcting a first backlight brightness value through fourth correction information;

[0103] Fig.14 A flow chart of the display device 200 provided in an embodiment of the present application correcting the first backlight brightness value through the fifth correction information. DETAILED DESCRIPTION

[0104] The following embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following embodiments do not represent all implementations consistent with the present application. They are only examples of systems and methods consistent with some aspects of the present application as detailed in the claims.

[0105] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0106] The terms "first", "second", "third", etc. in the specification and claims of this application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances.

[0107] The terms "comprises," "comprising," and "having," 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 all the components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0108] In the embodiments of the present application, the display device generally refers to a device with image display and data processing capabilities. For example, the display device includes but is not limited to smart TVs, mobile terminals, computers, monitors, advertising screens, wearable devices, virtual reality devices, augmented reality devices, etc.

[0109] Figure 1 This is a schematic diagram of an operation scenario between a display device and a control device provided in some embodiments of the present application. Figure 1 As shown in FIG. 1 , the user can operate the display device 200 through touch operation, voice, mobile terminal 300 and control device 100. For example, the control device 100 can be a remote controller, a stylus pen, a handle, etc.

[0110] like Figure 1 It is also shown that the display device 200 also communicates data with the server 400 (also referred to as the cloud or cloud server) through various communication methods. The display device 200 may be allowed to communicate and connect via a local area network (LAN), a wireless local area network (WLAN) and other networks.

[0111] The display device 200 may provide a broadcast receiving television function, and may also additionally provide an intelligent network television function with a computer support function, including but not limited to network television, smart television, Internet Protocol television (IPTV), and the like.

[0112] Figure 2 Some embodiments of the present application provide Figure 1 2 is a block diagram of the hardware configuration of the display device 200.

[0113] In some embodiments, the display device 200 may include at least one of a tuner 210, a communication device 220, a detector 230, a device interface 240, a controller 250, a display 260, an audio output device 270, a user input interface 280, a memory, and a power supply.

[0114] In some embodiments, the communication device 220 is a component for communicating with an external device or server 400 according to various communication protocol types. The display device 200 may be provided with a plurality of communication devices 220 according to different supported communication modes. The communication device 220 may enable the display device 200 to communicate with an external device or server 400 by wireless or wired connection.

[0115] In some embodiments, the detector 230 is used to collect signals of the external environment or external interaction. For example, the detector 230 includes a light receiver, a sensor for collecting the intensity of ambient light; or, the detector 230 includes an image collector, such as a camera, which can be used to collect external environment scenes, user attributes or user interaction gestures; or, the detector 230 includes a sound collector, such as a microphone, etc., for receiving external sounds.

[0116] In some embodiments, the device interface 240 is used to access an external device.

[0117] In some embodiments, the controller 250 is used to control the overall operation of the display device 200. The controller 250 may include at least one of a central processing unit (CPU), a video processor, an audio processor, a graphics processing unit (GPU), and a power processor, and first to nth interfaces for input / output. The controller 250 controls the operation of the display device 200 and responds to user operations through various software control programs stored in the memory.

[0118] 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 also be located in an external device of the main device where the controller 250 is located, such as an external set-top box.

[0119] In some embodiments, the display 260 is used to receive and display image signals outputted from the controller 250. The display 260 may include a display function component for presenting images, and a driving component for driving image display.

[0120] In some embodiments, the user may input a user command through a graphical user interface (GUI) displayed on the display 260 , and the user input interface 280 may receive the user command through the GUI.

[0121] In some embodiments, the audio output device 270 may be a local speaker of the display device 200 , or may be an external audio output device of the display device 200 .

[0122] In some embodiments, the user input interface 280 may be used to receive instructions from a user.

[0123] In order to perform user interaction, in some embodiments, the display device 200 may run an operating system. The operating system is a computer program for managing and controlling hardware resources and software resources in the display device 200. The operating system can control the display device to provide a user interface. For example, the operating system can directly control the display device to provide a user interface, or provide a user interface by running an application program. The operating system also allows the user to interact with the display device 200.

[0124] The operating system may be a native operating system based on a specific operating platform, or a third-party operating system deeply customized based on a specific operating platform, or an independent operating system specially developed for the display device 200 .

[0125] The operating system can be divided into different modules or layers according to the functions implemented, such as Figure 3 As shown, in some embodiments, the system can be divided into four layers, from top to bottom, namely, the application layer (Applications) layer (referred to as "application layer"), the application framework layer (Application Framework) layer (referred to as "framework layer"), the system runtime layer and the kernel layer.

[0126] In some embodiments, the application layer is used to provide services and interfaces for the application so that the display device 200 can run the application and interact with the user based on the application. For example, the application layer may include a voice assistant, which provides a voice interaction function, and the user can interact with the display device through the voice assistant in a voice manner.

[0127] The framework layer can provide application programming interfaces (API) and programming frameworks for applications. The application framework layer includes some predefined functions. The application framework layer is equivalent to a processing center, which determines the actions of applications in the application layer. Applications can access system resources and obtain system services during execution through the API interface.

[0128] In some embodiments, the system runtime layer can provide support for the framework layer. When the framework layer is used, the operating system will run the instruction library contained in the system runtime layer, such as the C / C++ instruction library, to implement the functions to be implemented by the framework layer.

[0129] In some embodiments, the kernel layer is a functional level between the hardware and software of the display device 200. The kernel layer can implement functions such as hardware abstraction, multitasking, and memory management.

[0130] It should be noted that the above example is only a simple division of the operating system functions and does not constitute a limitation on the specific operating system form of the display device 200 in the embodiment of the present application. Depending on factors such as the function of the display device and the type of operating system, the number of levels and specific level types contained in the operating system may be expressed in other forms.

[0131] Backlight refers to the light source behind the display device 200, which is used to illuminate the screen. The brightness of the backlight can be characterized by the backlight brightness value. The higher the backlight brightness value, the higher the backlight brightness, and the lower the backlight brightness value, the lower the backlight brightness. When the display device 200 uses the same backlight brightness value, if the brightness of the environment in which the display device 200 is located is low, the brightness of the display screen felt by the user is high. If the brightness of the environment in which the display device 200 is located is high, the brightness of the display screen felt by the user is low. When the brightness of the environment in which the display device 200 is located is too high or too low, the user may feel that the brightness of the display screen is too dazzling or cannot see the display screen clearly, resulting in the brightness of the display screen failing to meet the user's viewing needs.

[0132] In order to meet the viewing needs of users, the display device 200 may be equipped with a photosensitive device, which senses the brightness of the environment and automatically adjusts the backlight brightness value according to the brightness of the environment, so that the backlight brightness can meet the viewing needs of users. However, the cost of the photosensitive device is relatively high, and some display devices that are not equipped with a photosensitive device will not be able to know the brightness of the environment, and thus cannot automatically adjust the backlight brightness value according to the brightness of the environment.

[0133] In order to solve the above problems, the display device 200 provided in the embodiment of the present application (which may be configured with a photosensitive device or not) can automatically adjust the backlight brightness value according to the brightness of the environment without using a photosensitive device, so that the brightness of the display screen can meet the user's viewing needs.

[0134] The display device 200 is configured with a backlight adjustment function. In one example, the display device 200 may be configured with a backlight application, and the backlight adjustment function is supported by the backlight application.

[0135] The backlight adjustment function includes an on state and an off state. In the on state, the display device 200 will automatically adjust the backlight brightness value. In the off state, the display device 200 will not automatically adjust the backlight brightness value, but will continue to use the set backlight brightness value for display.

[0136] In some embodiments, the display device 200 may be configured to enable the backlight adjustment function by default after being powered on, so that the display device 200 may automatically adjust the backlight brightness value after being powered on.

[0137] In some embodiments, the display device 200 can be configured to turn off the backlight adjustment function by default after powering on. In this way, after powering on, the display device 200 can first keep using the currently set backlight brightness value for display. For example, the backlight brightness value set by the user before the last shutdown continues to be used. When the user requires the display device 200 to automatically adjust the backlight brightness, the user can control the display device 200 to turn on the backlight adjustment function.

[0138] In some embodiments, the application layer is used to provide user interfaces and / or controls related to the backlight adjustment function. These user interfaces can provide users with controls related to the backlight adjustment function, etc. Accordingly, the application layer is arranged with modules for supporting these user interfaces and controls.

[0139] In one example, if Figure 3 As shown, the application layer is configured with a switch module (such as an intelligent control switch) with a backlight adjustment function. The intelligent control switch module is used to support the control of turning on and off the backlight adjustment function.

[0140] In some embodiments, the switch of the backlight adjustment function can be configured in a system menu, such as in a setting menu. In some embodiments, the switch of the backlight adjustment function can be configured in a shortcut menu.

[0141] For example, if the backlight adjustment function switch can be configured in the setting menu, if the user wants to control the backlight adjustment function to be turned on or off, the control device 100 can control the display device 200 to display the setting menu. For example, the user can input a control instruction through the setting key on the control device 100, and the display device 200 responds to the control instruction and displays the setting menu. The setting menu includes the backlight adjustment function switch. The state of the backlight adjustment function switch matches its current state. For example, the display device 200 displays the following Figure 4 The setting menu 401 shown includes a switch 402 for a backlight adjustment function. The switch 402 is currently in an on state, that is, the backlight adjustment function is currently in an on state.

[0142] When the backlight adjustment function is turned on, the display device 200 will automatically adjust the brightness of the backlight so that the brightness of the display screen can meet the viewing needs of the user.

[0143] Figure 5 The flowchart of adjusting the backlight of the display device 200 provided in the embodiment of the present application has the following specific steps:

[0144] Step S501: Obtain basic information of the display device.

[0145] When the geographical location of the display device 200 remains unchanged, the basic information is the immutable information that affects the backlight brightness of the display device 200 .

[0146] The geographic location of the display device 200 refers to a location calibrated in units greater than a certain distance granularity. In one example, the geographic location can be a location calibrated by longitude and latitude. In one example, the geographic location can be a location calibrated by a country or region. In one example, the geographic location can be a location calibrated by an administrative region in a country.

[0147] There is a corresponding relationship between the geographical location and the information that affects the ambient brightness, such as the time zone and weather. When the geographical location remains unchanged, this information will not be affected by external forces / manpower and is immutable information. Moreover, the changes in the ambient brightness caused by this information lay the foundation for the general trend of adjusting the backlight brightness value. For example, if the ambient brightness is reduced by this information, the trend of adjusting the backlight brightness value is to increase the backlight brightness value. If the ambient brightness is increased by this information, the trend of adjusting the backlight brightness value is to reduce the backlight brightness value. In addition, the attribute information of the display device 200 itself is also immutable information that is not affected by external forces / manpower. The attribute information that partially affects the brightness of the display backlight, such as the size information of the display, is also information that lays the general trend of adjusting the backlight brightness value. In the embodiment of the present application, these information that lay the general trend of adjusting the backlight brightness value can be referred to as basic information.

[0148] In some embodiments, after the backlight adjustment function is turned on, the display device 200 may periodically obtain basic information according to a specified time period. For example, the display device 200 may obtain basic information once every 10 minutes.

[0149] In some embodiments, the display device 200 may send a first request to the server 400, where the first request is used to request basic information. The display device 200 receives the basic information returned by the server 400. Alternatively, the server 400 may periodically send the basic information to the display device 200.

[0150] In some embodiments, the display device 200 can generate a strategy for adjusting the backlight brightness value based on the acquired basic information. In other embodiments, the server 400 can generate a strategy for adjusting the backlight brightness value based on the basic information and send the strategy to the display device 200.

[0151] In the embodiment of the present application, a strategy for adjusting the backlight brightness value generated by the display device 200 itself is taken as an example for description.

[0152] In one example, if Figure 3 The operating system shown in the figure has an application layer configured with a real-time intelligent control module, an adjustment strategy management module, a device management module, a time management module, a weather management module, a location management module and a network management module.

[0153] Figure 6 The flowchart of the display device 200 obtaining basic information provided in the embodiment of the present application, the specific steps are as follows:

[0154] Step S601: Obtain size information in basic information.

[0155] The size information corresponds to the display, that is, the size of the area of ​​the display corresponding to the backlight area.

[0156] Figure 7 A schematic diagram of the timing of adjusting the backlight of the display device 200 provided in an embodiment of the present application.

[0157] Combination Figure 3 and Figure 7 When the backlight adjustment function is turned on, for example, the display device 200 monitors the turning on of the backlight adjustment function through the real-time intelligent control module, and the display device 200 can obtain the size information from the device management module through the real-time intelligent control module.

[0158] Step S602: Acquire positioning information in basic information.

[0159] The positioning information is used to represent the geographical location of the display device 200 .

[0160] Combination Figure 3 and Figure 7 , when the backlight adjustment function is turned on, for example, the display device 200 monitors the turning on of the backlight adjustment function through the real-time intelligent control module, and the display device 200 sends a request to the position management module through the real-time intelligent control module to obtain positioning information from the position management module. The position management module can communicate with the server 400 through the network management module, obtain positioning information from the server 400, and return the obtained positioning information to the real-time intelligent control module.

[0161] In some embodiments, the location management module may directly send the positioning information to the time management module and the weather management module respectively.

[0162] Step S603: Obtain time information and weather information in the basic information according to the positioning information.

[0163] Both time information and weather information correspond to geographical locations.

[0164] Combination Figure 7 , taking the position management module returning the positioning information to the real-time intelligent control module as an example. The real-time intelligent control module can send requests to the time management module and the weather management module respectively, and the request includes the geographical location. The time management module and the weather management module can communicate with the server 400 through the network management module, and send a request with the geographical location to the server 400 to obtain the time information and weather information corresponding to the geographical location from the server 400. After receiving the time information and weather information returned by the server 400, the time management module and the weather management module feed back the time information and weather information to the real-time intelligent control module.

[0165] In some embodiments, if the location management module directly sends the positioning information to the time management module and the weather management module respectively, the time management module and the weather management module can obtain the corresponding time information and weather information from the server 400 according to the geographic location, and pass the time information and weather information returned by the server 400 to the real-time intelligent control module.

[0166] Step S502: Calculate a first backlight brightness value according to basic information.

[0167] In some embodiments, the basic information acquired by the display device 200 may be one or more pieces of basic information, and the display device 200 may acquire corresponding adjustment parameters and weighting coefficients according to the acquired basic information.

[0168] The adjustment parameter is used to characterize the adjustment trend and degree of the backlight brightness value corresponding to the basic information.

[0169] For example, the adjustment parameter corresponding to the size information may be the inverse of the area. That is, for a display with a smaller area, the adjustment trend is to increase the backlight brightness value, and the smaller the area, the greater the adjustment degree.

[0170] For example, the adjustment parameter corresponding to the positioning information may be a light intensity estimation parameter related to the geographical location. The light intensity estimation parameter may be determined based on average light intensity data of different regions in the geographical location database and seasonal factors.

[0171] For example, the adjustment parameter corresponding to the weather information may be a season adjustment parameter, that is, the adjustment trend in summer is to reduce the backlight brightness value, while the adjustment trend in winter is to increase the backlight brightness value.

[0172] For example, the adjustment parameter corresponding to the time information may be a brightness compensation parameter, that is, the adjustment trend during the day is to increase the backlight brightness value, while the adjustment trend at night is to reduce the backlight brightness value.

[0173] The weighting coefficient is used to characterize the influence of the corresponding basic information on the backlight brightness value. The greater the influence, the higher the weighting coefficient, and the smaller the influence, the lower the weighting coefficient. In some embodiments, the weighting coefficient can be obtained through models, experiments, etc., or can be set by a user.

[0174] Combination Figure 3 and Figure 7 , the display device 200 can send a control instruction from the real-time intelligent control module to the adjustment strategy management module, and the control instruction includes various basic information, which is used to instruct the adjustment strategy management module to generate a backlight brightness value. In response to the control instruction, the adjustment strategy management module calculates a first backlight brightness value according to various basic information, and feeds the first backlight brightness value back to the real-time intelligent control module.

[0175] Taking the basic information including size information, location information, weather information and time information as an example, the first backlight brightness value can be calculated according to formula (1):

[0176] B 1 =k 1 ×S+ k 2 ×L+ k 3 ×D+ k 4 ×T (1)

[0177] Among them, B 1 Represents the first backlight brightness value, k 1 represents the weighting coefficient corresponding to the size information, S represents the adjustment parameter corresponding to the size information, and k 2 represents the weighting coefficient corresponding to the position information, L represents the adjustment parameter corresponding to the position information, k 3represents the weighted coefficient corresponding to the weather information, D represents the adjustment parameter corresponding to the weather information, k 4 represents the weighting coefficient corresponding to the time information, and T represents the adjustment parameter corresponding to the time information.

[0178] Step S503: display according to the first backlight brightness value.

[0179] The display device 200 controls the display 260 to adjust the backlight brightness value to the first backlight brightness value so as to perform display according to the first backlight brightness value.

[0180] In one example, if Figure 3 In the operating system shown, the kernel layer is configured with a backlight driver, which is responsible for communicating with the panel module, the module module, the power module, etc., to control the backlight of the display 260.

[0181] Combination Figure 7 , the real-time intelligent control module sends an adjustment instruction to the backlight driver, the adjustment instruction includes a first backlight brightness value, which is used to instruct the backlight driver to adjust the backlight of the display 260 according to the first backlight brightness value.

[0182] The display device 200 adjusts the backlight brightness value based on the basic information, so that the adjusted backlight brightness value meets the user's viewing needs in terms of a general adjustment trend.

[0183] In some embodiments, if the display device 200 is located in a space, such as indoors, the brightness change of the outdoor environment generated by the basic information may only be a partial factor affecting the backlight brightness value of the display device 200. Therefore, adjusting the backlight brightness value of the display device 200 based only on the basic information may not accurately meet the viewing needs of the user.

[0184] The present application embodiment introduces correction information, which is used to correct the first backlight brightness value. Wherein, when the geographical location of the display device 200 remains unchanged, the correction information is variable information that affects the backlight brightness of the display device 200. In other words, the correction information can change dynamically according to user preferences, device placement, the building where the device is located, changes in the indoor environment, etc.

[0185] The correction information may be one type or multiple types. In some embodiments, the user may customize the type of correction information to be used according to viewing requirements.

[0186] Figure 8 Another flowchart of adjusting the backlight of the display device 200 provided in the embodiment of the present application, the specific steps are as follows:

[0187] Step S801: Obtain basic information and correction information of the display device.

[0188] The process of obtaining the basic information of the display device 200 may refer to step S501 and step S601 to step S603, which will not be described in detail here.

[0189] Different types of correction information have different corresponding acquisition methods. The display device 200 acquires the correction information in a corresponding manner according to the type of correction information that has been set. The acquisition process of the correction information will be specifically described below according to different types of correction information, and will not be repeated here.

[0190] Step S802: Calculate a first backlight brightness value according to basic information.

[0191] Step S802 may refer to step 502 and will not be described in detail here.

[0192] Step S803: Correct the first backlight brightness value according to the correction information and the correction relationship corresponding to the correction information to obtain a second backlight brightness value.

[0193] Different correction information has different correction relationships. When the display device 200 corrects the first backlight brightness value through the correction information, the correction relationship corresponding to the correction information is used to ensure the validity and accuracy of the correction result. The second backlight brightness value obtained after the modification will better meet the viewing needs of the user. Step S804: Display according to the second backlight brightness value.

[0194] The display device 200 controls the display 260 to adjust the backlight brightness value to the second backlight brightness value so as to perform display according to the second backlight brightness value.

[0195] In some embodiments, the display device 200 may first control the display 260 to adjust the backlight brightness value to a first backlight brightness value, and then adjust the backlight brightness value to a second backlight brightness value, so as to finally display according to the second backlight brightness value.

[0196] When the display device 200 performs display according to the second backlight brightness value, it can better meet user needs and improve user experience.

[0197] Fig. 9 Another timing diagram of adjusting the backlight of the display device 200 provided in an embodiment of the present application.

[0198] Fig. 9 and Figure 7The main difference is that the display device 200 also obtains correction information through the real-time intelligent control module, for example, the correction information is obtained through the real-time intelligent control module in a manner corresponding to the type of correction information to be obtained. The control instruction sent by the real-time intelligent control module to the adjustment strategy management module also includes correction information. In response to the control instruction, the adjustment strategy management module, after calculating the first backlight brightness value, also corrects the first backlight brightness value through the correction information to obtain the second backlight brightness value. The adjustment strategy management module feeds back the second backlight brightness value to the real-time intelligent control module. The adjustment instruction sent by the real-time intelligent control module to the backlight driver includes the second backlight brightness value, which is used to instruct the backlight driver to adjust the backlight of the display 260 according to the second backlight brightness value.

[0199] The following describes the process of correcting the first backlight brightness value in combination with different types of correction information. In the description process, the process of obtaining basic information and calculating the first backlight brightness value based on the basic information will not be repeated, and accordingly, it will not be shown in the corresponding drawings.

[0200] In the first example, the correction information may include first correction information. If the correction information to be used that has been set includes the first correction information, the display device 200 acquires the first correction information.

[0201] The first correction information includes the building information of the space where the display device 200 is located and the placement information of the display device 200 in the space. The building information may include the floor where the space is located, the orientation of the space, whether there is any obstruction in the space, and other information that affects the brightness of the backlight. The placement information may include the positional relationship between the display device 200 and each light source, for example, whether the display device 200 is facing the light source (such as a window, a lamp).

[0202] Fig.10 The flowchart of the display device 200 provided in the embodiment of the present application correcting the first backlight brightness value by using the first correction information is as follows:

[0203] Step S1001: Obtain a first parameter set by a user.

[0204] The first parameter is a parameter including building information and placement information of the display device 200 .

[0205] In some embodiments, after the display device 200 is powered on for the first time, the display device 200 may guide the user to set the first parameter through operation guidance. Figure 3 As shown, the configuration is at the application layer) to obtain the first parameter.

[0206] In some embodiments, the user can dynamically set the first parameter according to the needs. For example, the backlight adjustment application of the display device 200 can provide an editing page for the building information and the placement information, and the user can dynamically change the building information and the placement information of the display device 200 based on the editing page. Accordingly, the display device 200 can obtain the first parameter from the storage area corresponding to the backlight adjustment application.

[0207] Step S1002: Acquire building information and placement information from the first parameter.

[0208] The display device 200 obtains the building information and the placement information from the first parameter.

[0209] Step S1003: According to the first corresponding relationship, the light intensity corresponding to the building information and the placement information is obtained.

[0210] The first corresponding relationship includes the corresponding relationship between building information, placement information and light intensity.

[0211] According to the acquired building information and placement information, based on the first corresponding relationship, the corresponding light intensity can be obtained.

[0212] For example, the higher the floor, the stronger the corresponding light intensity; the lower the floor, the weaker the corresponding light intensity.

[0213] For example, the south direction corresponds to a stronger light intensity; the north direction corresponds to a weaker light intensity.

[0214] For example, the light intensity corresponding to the unobstructed situation is stronger; the light intensity corresponding to the obstructed situation is weaker.

[0215] For example, the stronger the light intensity is, the closer it is to the light source, and the weaker the light intensity is, the closer it is to the light source.

[0216] Step S1004: Obtain the brightness adjustment factor corresponding to the building information and placement information according to the light intensity.

[0217] Among them, the stronger the light intensity is, the smaller the brightness adjustment factor is; the weaker the light intensity is, the larger the brightness adjustment factor is.

[0218] Step S1005: Acquire a first correction relationship corresponding to the first correction information.

[0219] In some embodiments, the first correction relationship may be a product relationship of the first backlight brightness value and each brightness adjustment factor.

[0220] Taking the building information including floor information F, orientation information O, shading information C, and the placement information including the position relationship A between the display device 200 and the light source as an example, if F, O, C, and A correspond to brightness adjustment factors f1, f2, f3, and f4 respectively, the first correction relationship can refer to formula (2):

[0221] B 后 =B 前 ×(f1×f2×f3×f4) (2)

[0222] Among them, B 后 Represents the corrected backlight brightness value, B 前 Represents the backlight brightness value before correction.

[0223] Step S1006: correct the first backlight brightness value according to the brightness adjustment factor and the first correction relationship to obtain a second backlight brightness value.

[0224] The display device 200 can accurately identify the ambient brightness of the space where the display device 200 is located through the architectural information of the space where the display device 200 is located and the placement information of the space where the display device 200 is located. In this way, the second backlight brightness value obtained by correcting the first backlight brightness value through the first correction information can be more consistent with the ambient brightness of the space where the display device 200 is located. Therefore, displaying according to the second backlight brightness value can better meet the needs of users using the display device 200 in the space.

[0225] In the second example, the correction information may include the second correction information. If the correction information to be used that has been set includes the second correction information, the display device 200 acquires the second correction information.

[0226] The second correction information is provided by the terminal device, including the ambient brightness of the space where the terminal device is located. In some embodiments, if the display device 200 is configured with a function of communicating with the terminal device, the display device 200 can establish a communication connection with the terminal device, for example, a communication connection is established based on a WiFi network, a Bluetooth network, the Internet of Things, an Ethernet, etc. If the terminal device has the function of collecting ambient brightness, the terminal device can be responsible for obtaining the ambient brightness, and send the collected ambient brightness to the display device 200 through communication with the display device 200. If the terminal device and the display device 200 are in the same space, the ambient brightness collected by the terminal device can represent the ambient brightness of the space where the display device 200 is located.

[0227] In some embodiments, the terminal device may be a mobile device, such as a mobile phone, a tablet computer, a wearable device, etc.

[0228] Fig.11 The flowchart of the display device 200 provided in the embodiment of the present application correcting the first backlight brightness value by using the second correction information is as follows:

[0229] Step S1101: Obtain ambient brightness from the terminal device.

[0230] In some embodiments, the display device 200 may actively send a request to the terminal device according to a preset period to request the ambient brightness, and receive the ambient brightness fed back by the terminal device.

[0231] In some embodiments, the terminal device may actively send the ambient brightness to the display device 200 , and the display device 200 receives the ambient brightness sent by the terminal device.

[0232] Step S1102: Acquire a second correction relationship corresponding to the second correction information.

[0233] In some embodiments, the second correction relationship may be a linear weighted relationship between the first backlight brightness value and the ambient brightness.

[0234] In one example, the second correction relationship may refer to formula (3):

[0235] B 后 =B 前 ×(1+a×L1) (3)

[0236] Wherein, L1 represents the ambient brightness, and a represents the correction coefficient of the light sensing data. In some embodiments, a can be set based on experiments or experience.

[0237] Step S1103: Correct the first backlight brightness value according to the ambient brightness and the second correction relationship to obtain a second backlight brightness value.

[0238] The display device 200 can obtain the ambient brightness of the space where the terminal device is located through the terminal device, and use the ambient brightness as the ambient brightness of the space where the display device 200 is located. In this way, the terminal device can assume the task of monitoring the ambient brightness, and the display device 200 can quickly obtain the second correction information by communicating with the terminal device, thereby reducing the task of the display device 200. The second backlight brightness value obtained by correcting the first backlight brightness value by the second correction information can be more consistent with the ambient brightness of the space where the display device 200 is located. Therefore, displaying according to the second backlight brightness value can better meet the needs of users using the display device 200 in the space.

[0239] In the third example, the correction information may include third correction information. If the correction information to be used that has been set includes the third correction information, the display device 200 acquires the third correction information.

[0240] The third correction information is provided by the light source device, including the brightness information of the light source device. In some embodiments, if the display device 200 is configured with a function of communicating with the light source device, for example, the display device 200 has a function of configuring a network for the light source device, the display device 200 can establish a communication connection with the light source device, and obtain the brightness information of the light source device through communication with the light source device. For example, after configuring a network for the light source device, the display device 200 can obtain the control authority of the light source device, thereby obtaining the device information of the light source device, which may include switch status, brightness information, etc. When the light source device is turned on, its brightness information is an important factor affecting the ambient brightness of the space in which it is located. The second backlight brightness value corrected with reference to the brightness information of the light source device can be more in line with the ambient brightness of the space in which the display device is located.

[0241] Fig.12 The flowchart of the display device 200 provided in the embodiment of the present application correcting the first backlight brightness value by using the third correction information is as follows:

[0242] Step S1201: Acquire brightness information from a light source device.

[0243] In some embodiments, the display device 200 may actively send a request to the light source device according to a preset period to request brightness information, and receive brightness information fed back by the light source device.

[0244] In some embodiments, the light source device may actively send brightness information to the display device 200 , and the display device 200 receives the brightness information sent by the light source device.

[0245] In some embodiments, if the display device 200 has control authority over the light source device after being networked, the display device 200 may directly record the adjusted brightness information of the light source device after controlling and adjusting the brightness of the light source device.

[0246] Step S1202: Obtain a third correction relationship corresponding to the third correction information.

[0247] In some embodiments, the third correction relationship may be a linear weighted relationship between the first backlight brightness value and the brightness information.

[0248] In one example, the third correction relationship can refer to formula (4):

[0249] B 后 =B 前 ×(1-b×L2) (4)

[0250] Wherein, L2 represents brightness information, and b represents a correction coefficient of light source brightness. In some embodiments, b can be set based on experiments or experience.

[0251] Step S1203: Correct the first backlight brightness value according to the brightness information and the third correction relationship to obtain a second backlight brightness value.

[0252] When the light source device is turned on, its brightness information is an important factor affecting the ambient brightness of the space in which it is located. The display device 200 can directly obtain the brightness information from the light source device, and use it as the third correction information to correct the first backlight brightness value to obtain the second backlight brightness value. In this way, the second backlight brightness value corrected with reference to the brightness information of the light source device can be more consistent with the ambient brightness of the space where the display device is located. Therefore, displaying according to the second backlight brightness value can better meet the needs of users using the display device 200 in the space.

[0253] In the fourth example, the correction information may include fourth correction information. If the correction information to be used that has been set includes the fourth correction information, the display device 200 acquires the fourth correction information.

[0254] The fourth correction information includes an initial backlight brightness value set by the user, that is, a backlight brightness value manually set by the user. The initial backlight brightness value may reflect the user's preference for using the backlight brightness value.

[0255] Fig.13 The flowchart of the display device 200 provided in the embodiment of the present application correcting the first backlight brightness value by using the fourth correction information is as follows:

[0256] Step S1301: Obtain an initial backlight brightness value.

[0257] The display device 200 can obtain the initial backlight brightness value set by the user through the device management module.

[0258] Step S1302: Calculate the difference between the initial backlight brightness value and the first backlight brightness value.

[0259] Initial backlight brightness value B 0 Compared with the backlight brightness value B before correction 前 The difference between ΔB can be expressed as ΔB = B 0 -B 前 .

[0260] Step S1303: Acquire the fourth correction relationship corresponding to the fourth correction information.

[0261] In some embodiments, the fourth correction relationship may be a weighted relationship between the difference value and the first backlight brightness value.

[0262] In one example, the fourth correction relationship can refer to formula (5):

[0263] B 后 =B前 +ΔB×c (5)

[0264] Wherein, c represents the weight coefficient of user habits, and the value range of c is between 0 and 1. In some embodiments, c can be set according to user usage history data and feedback.

[0265] Step S1304: Correct the first backlight brightness value according to the difference and the fourth correction relationship to obtain a second backlight brightness value.

[0266] The initial backlight brightness value set by the user can reflect the user's preference for the backlight brightness value. The display device 200 uses the initial backlight brightness value as the fourth correction information to correct the first backlight brightness value to obtain a second backlight brightness value that is more in line with the user's preference for the backlight brightness value. Therefore, displaying according to the second backlight brightness value can be more in line with the user's preference for the backlight brightness value.

[0267] In the fifth example, the correction information may include fifth correction information. If the correction information to be used that has been set includes the fifth correction information, the display device 200 acquires the fifth correction information.

[0268] The fifth correction information includes the program type. Different program types may have different screen brightness. The brightness of the display screen that the user ultimately feels is a comprehensive presentation of the brightness of the screen and the brightness of the backlight. Therefore, by using the program type as the fifth correction information, the brightness of the current screen can be accurately identified, and the first backlight brightness value can be corrected more accurately.

[0269] Fig.14 The flowchart of the display device 200 provided in the embodiment of the present application correcting the first backlight brightness value by using the fifth correction information is as follows:

[0270] Step S1401: Obtain the target program type of the currently playing program.

[0271] The display device 200 can obtain the program information of the currently playing program, and obtain the program type of the program, that is, the target program type, from the program information.

[0272] In one embodiment, if the display device 200 plays a live program, the display device 200 may obtain an electronic program guide, and obtain the target program type of the currently played program from the electronic program guide.

[0273] In one embodiment, if the display device 200 plays a network program, the display device 200 may obtain the target program type of the program from the application to which the currently played program belongs.

[0274] Step S1402: According to the second corresponding relationship, a target brightness adjustment parameter corresponding to the target program type is obtained.

[0275] The second correspondence includes a correspondence between a program type and a brightness adjustment parameter. The brightness adjustment parameter is used to characterize the adjustment trend of the backlight brightness value, including increasing and decreasing. The lower the brightness adjustment parameter, the lower the backlight brightness value; the higher the brightness adjustment parameter, the higher the backlight brightness value.

[0276] For example, if the program type is movie, the corresponding brightness adjustment parameter is relatively low; if the program type is sports, the corresponding brightness adjustment parameter is relatively high.

[0277] Step S1403: Obtain the fifth correction relationship corresponding to the fifth correction information.

[0278] In some embodiments, the fifth correction relationship may be a product relationship between the first backlight brightness value and the brightness adjustment parameter.

[0279] In one example, the fifth correction relationship can refer to formula (6):

[0280] B 后 =B 前 ×p (6)

[0281] Wherein, p represents the brightness adjustment parameter.

[0282] Step S1404: Correct the first backlight brightness value according to the target brightness adjustment parameter and the fifth correction relationship to obtain a second backlight brightness value.

[0283] Different program types may have different screen brightness. The brightness of the display screen that the user ultimately feels is a comprehensive presentation of the screen brightness and the backlight brightness. Therefore, by using the program type as the fifth correction information, the brightness of the current screen can be accurately identified, and then the first backlight brightness value can be corrected based on the screen brightness. The comprehensive presentation of the second backlight brightness value obtained after correction and the brightness of the current screen will better meet the user's demand for the brightness of the display screen.

[0284] In some embodiments, the display device 200 may obtain one or a combination of the first to fifth correction information.

[0285] If the display device 200 obtains a plurality of correction information, the display device 200 corrects the first backlight brightness value according to the specified order corresponding to the plurality of correction information and according to the correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value.

[0286] The correction result corresponding to the previous correction information in the specified order is used as the correction basis of the current correction information, and the correction result is corrected according to the correction relationship between the current correction information and the previous correction information.

[0287] In some embodiments, the specified order may be the order in which the correction information is obtained. The specified order may also be a fixed order for each piece of correction information.

[0288] For example, the specified order is the second correction information, the third correction information, the fourth correction information, the fifth correction information, and the first correction information. If the current correction information is the third correction information, the previous correction information is the second correction information. The correction basis of the current correction information is the correction result obtained by correcting the first backlight brightness value through the second correction information.

[0289] The display device 200 can correct the first backlight brightness value based on multiple correction information so that the second backlight brightness value obtained after correction can meet the user's needs in multiple dimensions / multiple aspects. In the process of correcting the first backlight brightness value using multiple correction information, the display device 200 uses each correction information in sequence in a specified order to correct it, which can ensure the orderly progress of the correction process, thereby ensuring the accuracy of the correction result.

[0290] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above discussion in some embodiments is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. According to the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are intended to better explain the content of this disclosure, so that those skilled in the art can better use the embodiments.

Claims

1. A display device, characterized in that: include: The display is configured to: display according to the set backlight brightness value; The controller is configured as: After the backlight adjustment function is turned on, basic information and correction information of the display device are obtained, wherein, when the geographical location of the display device remains unchanged, the basic information is immutable information affecting the backlight brightness of the display device, and the correction information is variable information affecting the backlight brightness of the display device; Calculating a first backlight brightness value according to the basic information; Correcting the first backlight brightness value according to the correction information and a correction relationship corresponding to the correction information to obtain a second backlight brightness value; The display is controlled to display according to the second backlight brightness value.

2. The display device according to claim 1, characterized in that The controller corrects the first backlight brightness value according to the correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value, and is specifically configured as follows: If a plurality of correction information are obtained, the first backlight brightness value is corrected according to the specified order of the plurality of correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value; The correction result corresponding to the previous correction information in the specified order is used as the correction basis of the current correction information, and the correction result is corrected according to the current correction information and the correction relationship corresponding to the current correction information.

3. The display device according to claim 1 or 2, characterized in that: The correction information includes first correction information, and the first correction information includes architectural information of the space where the display device is located and placement information of the display device in the space; After the backlight adjustment function is turned on, the controller obtains basic information and correction information of the display device, and is specifically configured as follows: Get the first parameter set by the user; Acquire the building information and the placement information from the first parameter; The controller corrects the first backlight brightness value according to the correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value, and is specifically configured as follows: According to the first corresponding relationship, obtaining the light intensity corresponding to the building information and the placement information, wherein the first corresponding relationship includes the corresponding relationship between the building information, the placement information and the light intensity; According to the light intensity, a brightness adjustment factor corresponding to the building information and the placement information is obtained, wherein the stronger the light intensity, the smaller the brightness adjustment factor; and the weaker the light intensity, the larger the brightness adjustment factor; Acquire a first correction relationship corresponding to the first correction information; The first backlight brightness value is corrected according to the brightness adjustment factor and the first correction relationship to obtain the second backlight brightness value.

4. The display device according to claim 1 or 2, characterized in that: The correction information includes second correction information provided by the terminal device, and the second correction information includes the ambient brightness of the space where the terminal device is located; The display device further includes: A communicator, configured to: communicate with the terminal device; After the backlight adjustment function is turned on, the controller obtains basic information and correction information of the display device, and is specifically configured as follows: Acquire the ambient brightness from the terminal device; The controller corrects the first backlight brightness value according to the correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value, and is specifically configured as follows: Acquire a second correction relationship corresponding to the second correction information; The first backlight brightness value is corrected according to the ambient brightness and the second correction relationship to obtain the second backlight brightness value.

5. The display device according to claim 1 or 2, characterized in that: The correction information includes third correction information provided by the light source device, and the third correction information includes brightness information of the light source device; The display device further includes: A communicator, configured to: communicate with the light source device; After the backlight adjustment function is turned on, the controller obtains basic information and correction information of the display device, and is specifically configured as follows: Acquire the brightness information from the light source device; The controller corrects the first backlight brightness value according to the correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value, and is specifically configured as follows: Acquire a third correction relationship corresponding to the third correction information; The first backlight brightness value is corrected according to the brightness information and the third correction relationship to obtain the second backlight brightness value.

6. The display device according to claim 1 or 2, characterized in that: The correction information includes fourth correction information, and the fourth correction information includes an initial backlight brightness value set by a user; After the backlight adjustment function is turned on, the controller obtains basic information and correction information of the display device, and is specifically configured as follows: Acquire the initial backlight brightness value; The controller corrects the first backlight brightness value according to the correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value, and is specifically configured as follows: Calculating a difference between the initial backlight brightness value and the first backlight brightness value; Acquire a fourth correction relationship corresponding to the fourth correction information; The first backlight brightness value is corrected according to the difference and the fourth correction relationship to obtain the second backlight brightness value.

7. The display device according to claim 1 or 2, characterized in that: The correction information includes fifth correction information, and the fifth correction information includes a program type; After the backlight adjustment function is turned on, the controller obtains basic information and correction information of the display device, and is specifically configured as follows: Get the target program type of the currently playing program; The controller corrects the first backlight brightness value according to the correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value, and is specifically configured as follows: According to the second corresponding relationship, obtaining the target brightness adjustment parameter corresponding to the target program type, wherein the second corresponding relationship includes a corresponding relationship between the program type and the brightness adjustment parameter; Acquire a fifth correction relationship corresponding to the fifth correction information; The first backlight brightness value is corrected according to the target brightness adjustment parameter and the fifth correction relationship to obtain the second backlight brightness value.

8. The display device according to claim 1 or 2, characterized in that: After the backlight adjustment function is turned on, the controller obtains basic information and correction information of the display device, and is specifically configured as follows: Acquire size information in the basic information, where the size information corresponds to the display; Acquire positioning information in the basic information, where the positioning information is used to represent the geographical location of the display device; According to the positioning information, acquiring time information and weather information in the basic information, wherein both the time information and the weather information correspond to the geographical location; The controller calculates the first backlight brightness value according to the basic information, and is specifically configured as follows: Obtaining adjustment parameters and weighting coefficients corresponding to the basic information; A weighted calculation is performed according to the adjustment parameter and the weighting coefficient to obtain the first backlight brightness value.

9. A method for adjusting backlight, characterized in that: Applied to a display device, the method comprises: After the backlight adjustment function is turned on, basic information and correction information of the display device are obtained, wherein, when the geographical location of the display device remains unchanged, the basic information is immutable information affecting the backlight brightness of the display device, and the correction information is variable information affecting the backlight brightness of the display device; Calculating a first backlight brightness value according to the basic information; Correcting the first backlight brightness value according to the correction information and a correction relationship corresponding to the correction information to obtain a second backlight brightness value; Display is performed according to the second backlight brightness value.

10. The method according to claim 9, characterized in that The step of correcting the first backlight brightness value according to the correction information and a correction relationship corresponding to the correction information to obtain a second backlight brightness value includes: If a plurality of correction information are obtained, the first backlight brightness value is corrected according to the specified order of the plurality of correction information and the correction relationship corresponding to the correction information to obtain the second backlight brightness value; The correction result corresponding to the previous correction information in the specified order is used as the correction basis of the current correction information, and the correction result is corrected according to the current correction information and the correction relationship corresponding to the current correction information.

Images