CN113038215A

CN113038215A - Image display brightness and color difference adjusting method and display equipment

Info

Publication number: CN113038215A
Application number: CN202110258419.7A
Authority: CN
Inventors: 王兴
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Vidaa Netherlands International Holdings BV
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-06-25

Abstract

The application discloses an image display brightness and color difference adjusting method and display equipment, wherein the brightness value and the color temperature value of the display equipment are adjusted to improve the image display effect through the comprehensive effect of local weather acquired through a network and the light brightness of the current watching environment, and the user experience is improved. The method comprises the following steps: in a first preset time, if the self-adaptive image is set to be in an open state and is connected with a connected network, acquiring the weather condition of the current city in real time by means of the network, and acquiring the light intensity of the current environment; and adjusting the brightness value and the color difference value of image display according to the weather condition and the light intensity.

Description

Image display brightness and color difference adjusting method and display equipment

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a method for adjusting brightness and color difference of image display and a display device.

Background

Currently, with the development of smart lcd tvs and the popularization of 4K HDR (High Dynamic Range Imaging), the demand of users for watching tv has changed greatly, and the pursuit of High image quality is an irresistible trend. In order to meet the current requirement of users on higher and higher image quality, various television manufacturers make a lot of efforts on the aspect of improving the display of the image quality, and more image setting parameters are added on a user interface for interacting with the users, so that the users can conveniently adjust the parameters of the image quality according to the actual watching scenes. However, the average user tends to be "confusing" facing a number of image setting parameters, as some are too "professional," such as: the functions of White Balance (White Balance), Gamma setting and the like on the television are not clear at all for the user, and how to set the parameters is more difficult. Therefore, although the current smart tv is more and more sophisticated in the user interaction function of image settings, the user generally cannot easily select and adjust the parameters of the settings, and thus the image quality may not be ideal in some viewing environments. From the viewpoint of television image quality, brightness and color temperature values are two important parameters, because the brightness value is most susceptible to the user, the brightness of the image has a large influence on the actual watching effect of the user, if the brightness of the television is too high, not only the overall hue of the television picture is "blurred", but also the eyes of the user are very uncomfortable, but if the brightness is too low, the user wants to see the television picture completely, which is very difficult, and the watching experience of the user is very poor. Similarly, if the color temperature is set too high when watching a television program, the whole picture will be blue and virtual, and if the color temperature is set too low, the whole tone will be yellow and red, which will increase the stress and fatigue of the eyes of the user, and the user experience will be poor.

Disclosure of Invention

The embodiment of the application provides an image display brightness and color difference adjusting method and display equipment, the brightness value and the color temperature value of the display equipment are adjusted through the comprehensive effect of local weather acquired through a network and the light brightness of the current watching environment to improve the image display effect, and the user experience is improved.

In a first aspect, there is provided a display device comprising:

a display;

a controller for performing:

in a first preset time, if the self-adaptive image is set to be in an open state and is connected with a connected network, acquiring the weather condition of the current city in real time by means of the network, and acquiring the light intensity of the current environment;

and adjusting the brightness value and the color difference value of image display according to the weather condition and the light intensity.

In some embodiments, the controller is further configured to perform:

within a first preset time, if the self-adaptive image is set to be in an open state and is not connected with a network, acquiring the light intensity of the current environment;

and adjusting the brightness value and the color difference value of the image display according to the light intensity.

In some embodiments, the controller is further configured to perform:

and in a non-first preset time, controlling the self-adaptive image to be set in a closed state and controlling the brightness and the color difference of the image display to be recovered to default values, wherein the self-adaptive image setting cannot be started by a user.

In some embodiments, the controller is further configured to perform:

acquiring the weather condition of the current city at intervals of second preset time;

acquiring the light intensity of the current environment at intervals of second preset time;

In some embodiments, the light intensity includes a low level, a moderate level, and a high level, and the weather conditions include sunny, cloudy, and rainy or snowy.

In a second aspect, a method for adjusting brightness and color temperature of image display is provided, the method comprising:

In some embodiments, the method further comprises:

In the above embodiment, in a certain period of time, the brightness and the color temperature in the image setting are automatically refreshed according to the weather conditions acquired through the network and the light intensity of the perceived viewing environment, so that the user is helped to adaptively adjust the display effect when the viewing environment changes, the user is ensured to obtain a good viewing effect without manually adjusting the image setting, and the viewing experience of the user is favorably improved.

Drawings

FIG. 1 illustrates a usage scenario of a display device according to some embodiments;

fig. 2 illustrates a hardware configuration block diagram of the control apparatus 100 according to some embodiments;

fig. 3 illustrates a hardware configuration block diagram of the display apparatus 200 according to some embodiments;

FIG. 4 illustrates a software configuration diagram in the display device 200 according to some embodiments;

FIG. 5 illustrates a schematic structural diagram of a display according to some embodiments;

6-10 illustrate a user interface diagram according to some embodiments;

a flow chart of an image display brightness and color temperature adjustment method according to some embodiments is illustrated in fig. 11.

Detailed Description

To make the purpose and embodiments of the present application clearer, the following will clearly and completely describe the exemplary embodiments of the present application with reference to the attached drawings in the exemplary embodiments of the present application, and it is obvious that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

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

The terms "first", "second", "third", etc. in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and are not necessarily meant to define a particular order or sequence unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.

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

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

Fig. 1 is a schematic diagram of a usage scenario of a display device according to an embodiment. As shown in fig. 1, the display apparatus 200 is also in data communication with a server 400, and a user can operate the display apparatus 200 through the smart device 300 or the control device 100.

In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes at least one of an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, and controls the display device 200 in a wireless or wired manner. The user may control the display apparatus 200 by inputting a user instruction through at least one of a key on a remote controller, a voice input, a control panel input, and the like.

In some embodiments, the smart device 300 may include any of a mobile terminal, a tablet, a computer, a laptop, an AR/VR device, and the like.

In some embodiments, the smart device 300 may also be used to control the display device 200. For example, the display device 200 is controlled using an application program running on the smart device.

In some embodiments, the smart device 300 and the display device may also be used for communication of data.

In some embodiments, the display device 200 may also be controlled in a manner other than the control apparatus 100 and the smart device 300, for example, the voice instruction control of the user may be directly received by a module configured inside the display device 200 to obtain a voice instruction, or may be received by a voice control apparatus provided outside the display device 200.

In some embodiments, the display device 200 is also in data communication with a server 400. The display device 200 may be allowed to be communicatively connected through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display apparatus 200. The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers.

In some embodiments, software steps executed by one step execution agent may be migrated on demand to another step execution agent in data communication therewith for execution. Illustratively, software steps performed by the server may be migrated to be performed on a display device in data communication therewith, and vice versa, as desired.

Fig. 2 exemplarily shows a block diagram of a configuration of the control apparatus 100 according to an exemplary embodiment. As shown in fig. 2, the control device 100 includes a controller 110, a communication interface 130, a user input/output interface 140, a memory, and a power supply. The control apparatus 100 may receive an input operation instruction from a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an interaction intermediary between the user and the display device 200.

In some embodiments, the communication interface 130 is used for external communication, and includes at least one of a WIFI chip, a bluetooth module, NFC, or an alternative module.

In some embodiments, the user input/output interface 140 includes at least one of a microphone, a touchpad, a sensor, a key, or an alternative module.

Fig. 3 shows a hardware configuration block diagram of the display apparatus 200 according to an exemplary embodiment.

In some embodiments, the display apparatus 200 includes at least one of a tuner demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, a memory, a power supply, a user interface.

In some embodiments the controller comprises a central processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, a first interface to an nth interface for input/output.

In some embodiments, the display 260 includes a display screen component for displaying pictures, and a driving component for driving image display, a component for receiving image signals from the controller output, displaying video content, image content, and menu manipulation interface, and a user manipulation UI interface, etc.

In some embodiments, the display 260 may be at least one of a liquid crystal display, an OLED display, and a projection display, and may also be a projection device and a projection screen.

In some embodiments, the tuner demodulator 210 receives broadcast television signals via wired or wireless reception, and demodulates audio/video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.

In some embodiments, communicator 220 is a component for communicating with external devices or servers according to various communication protocol types. For example: the communicator may include at least one of a Wifi module, a bluetooth module, a wired ethernet module, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The display apparatus 200 may establish transmission and reception of control signals and data signals with the control device 100 or the server 400 through the communicator 220.

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

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

In some embodiments, the controller 250 and the modem 210 may be located in different separate devices, that is, the modem 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box.

In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory. The controller 250 controls the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 260, the controller 250 may perform an operation related to the object selected by the user command.

In some embodiments, the object may be any one of selectable objects, such as a hyperlink, an icon, or other actionable control. The operations related to the selected object are: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to the icon.

In some embodiments the controller comprises at least one of a Central Processing Unit (CPU), a video processor, an audio processor, a Graphics Processing Unit (GPU), a ramandom Access Memory, RAM), ROM (Read-Only Memory), a first to nth interface for input/output, a communication Bus (Bus), and the like.

A CPU processor. For executing operating system and application program instructions stored in the memory, and executing various application programs, data and contents according to various interactive instructions receiving external input, so as to finally display and play various audio-video contents. The CPU processor may include a plurality of processors. E.g. comprising a main processor and one or more sub-processors.

In some embodiments, a graphics processor for generating various graphics objects, such as: at least one of an icon, an operation menu, and a user input instruction display figure. The graphic processor comprises an arithmetic unit, which performs operation by receiving various interactive instructions input by a user and displays various objects according to display attributes; the system also comprises a renderer for rendering various objects obtained based on the arithmetic unit, wherein the rendered objects are used for being displayed on a display.

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

In some embodiments, the video processor includes at least one of a demultiplexing module, a video decoding module, an image composition module, a frame rate conversion module, a display formatting module, and the like. The demultiplexing module is used for demultiplexing the input audio and video data stream. And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like. And the image synthesis module is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display. And the frame rate conversion module is used for converting the frame rate of the input video. And the display formatting module is used for converting the received video output signal after the frame rate conversion, and changing the signal to be in accordance with the signal of the display format, such as an output RGB data signal.

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

In some embodiments, a user may enter user commands on a Graphical User Interface (GUI) displayed on display 260, and the user input interface receives the user input commands through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.

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

In some embodiments, user interface 280 is an interface that may be used to receive control inputs (e.g., physical buttons on the body of the display device, or the like).

In some embodiments, the display device 200 further comprises a light sensor 290, the light sensor 290 is connected to the controller 250, and the light sensor 290 can be disposed on the top of the display 260, as shown in fig. 5. The light sensor 290 is generally not easily shielded and is more sensitive to light when disposed on the top of the display 260.

In some embodiments, a system of a display device may include a Kernel (Kernel), a command parser (shell), a file system, and an application program. The kernel, shell, and file system together make up the basic operating system structure that allows users to manage files, run programs, and use the system. After power-on, the kernel is started, kernel space is activated, hardware is abstracted, hardware parameters are initialized, and virtual memory, a scheduler, signals and interprocess communication (IPC) are operated and maintained. And after the kernel is started, loading the Shell and the user application program. The application program is compiled into machine code after being started, and a process is formed.

Referring to fig. 4, in some embodiments, the system is divided into four layers, which are, from top to bottom, an Application (Applications) layer (abbreviated as "Application layer"), an Application Framework (Application Framework) layer (abbreviated as "Framework layer"), an Android runtime (Android runtime) layer and a system library layer (abbreviated as "system runtime library layer"), and a kernel layer.

In some embodiments, at least one application program runs in the application program layer, and the application programs may be windows (windows) programs carried by an operating system, system setting programs, clock programs or the like; or an application developed by a third party developer. In particular implementations, the application packages in the application layer are not limited to the above examples.

The framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions. The application framework layer acts as a processing center that decides to let the applications in the application layer act. The application program can access the resources in the system and obtain the services of the system in execution through the API interface.

As shown in fig. 4, in the embodiment of the present application, the application framework layer includes a manager (Managers), a Content Provider (Content Provider), and the like, where the manager includes at least one of the following modules: an Activity Manager (Activity Manager) is used for interacting with all activities running in the system; the Location Manager (Location Manager) is used for providing the system service or application with the access of the system Location service; a Package Manager (Package Manager) for retrieving various information related to an application Package currently installed on the device; a Notification Manager (Notification Manager) for controlling display and clearing of Notification messages; a Window Manager (Window Manager) is used to manage the icons, windows, toolbars, wallpapers, and desktop components on a user interface.

In some embodiments, the activity manager is used to manage the lifecycle of the various applications as well as general navigational fallback functions, such as controlling exit, opening, fallback, etc. of the applications. The window manager is used for managing all window programs, such as obtaining the size of a display screen, judging whether a status bar exists, locking the screen, intercepting the screen, controlling the change of the display window (for example, reducing the display window, displaying a shake, displaying a distortion deformation, and the like), and the like.

In some embodiments, the system runtime layer provides support for the upper layer, i.e., the framework layer, and when the framework layer is used, the android operating system runs the C/C + + library included in the system runtime layer to implement the functions to be implemented by the framework layer.

In some embodiments, the kernel layer is a layer between hardware and software. As shown in fig. 4, the core layer includes at least one of the following drivers: audio drive, display driver, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (like fingerprint sensor, temperature sensor, pressure sensor etc.) and power drive etc..

Schematic diagrams of one user interface provided by the display device 200 are illustrated in fig. 6-10.

As shown in fig. 6, the display device may provide a GUI to the display that may provide a presentation area of different image content in which a plurality of different controls are arranged. For example, the display area 51 includes controls 511-519 therein, the controls 511-519 being color, hue, sharpness, aspect ratio of the television, adaptive image settings, advanced settings, calibration settings, low blue light, and application image settings, respectively. And the GUI further includes a selector 52 indicating that any of the controls is selected, the position of the selector or the positions of the controls in the GUI being movable by input from a user operating the control means to change the selection of the different controls. For example, selector 52 indicates that control 515 is selected.

It should be noted that the widgets refer to visual objects displayed in respective presentation areas of the GUI in the display apparatus 200 to represent corresponding contents such as icons, thumbnails, video clips, links, etc., and can provide the user with various conventional program contents received through data broadcasting, and various application and service contents set by a content manufacturer.

In some embodiments, the controls may represent movies, image content or video clips of a television series, audio content of music, applications, or other user access content history information. If the control is a movie or a tv show, the control may be displayed as a poster of the movie or tv show, a video clip dynamic of a trailer of the movie or tv show. If the control is music, a poster of a music album can be displayed. If the control is an application, it may be displayed as an icon for the application or a screenshot of the content captured for the application when it was most recently executed. If the control is the user access history, the control can be displayed as a content screenshot in the latest execution process.

In some embodiments, the control may represent an interface or a set of interfaces to which the display device 200 is connected to an external device, or may represent a name of an external device connected to the display device, or the like. Such as: a signal source input interface set, or an HDMI interface, a USB interface, a PC terminal interface, etc.

The display forms of the controls are generally diversified. For example, the controls may include textual content and/or images for displaying thumbnails related to the textual content, or video clips related to the text. As another example, the control can be text and/or an icon of the application.

It should also be noted that the selector is used to indicate that any one of the controls has been selected, such as the focus object. In one aspect, the control may be selected or controlled by controlling the movement of the focus object displayed in the display apparatus 200 according to an input of the user through the control apparatus 100. Such as: the user may select and control the controls by controlling the movement of the focus object between the controls through the directional keys on the control device 100. On the other hand, the movement of each control displayed in the display apparatus 200 may be controlled according to the input of the user through the control device 100 to cause the focus object to select or control the control. Such as: the user can control the controls to move left and right together through the direction key on the control device 100, so as to enable the focus object to select and control the controls when the position of the focus object is kept unchanged.

The form of identification of the selector is often diversified. For example, the position of the focus object is realized or identified by enlarging the control, the position of the focus object is realized or identified by setting the background color of the control, and the position of the focus object can also be identified by changing the border line, size, color, transparency, outline and/or font of the text or image of the focus control.

In fig. 6, the adaptive image setting is in the off state, and the selector 52 indicates that the adaptive image setting is selected. When the user changes the adaptive image setting from the off state to the on state by pressing the enter key of the control device, as shown in fig. 7. In fig. 7, if the user presses the confirm key of the control device again, the adaptive image setting may be changed from the on state to the off state, as shown in fig. 6.

In some embodiments, the switching of the adaptive image settings on state and off state occurs only within a predetermined time, for example, the state of the adaptive image settings may be changed during the time period of 8:00-18:00 of the day. And the adaptive image setting is set to be in a closed state by default from 18:00 of the day to 8:00 of the next day, and the adaptive image setting is automatically set to be gray, as shown in fig. 8, the user cannot change the state of the adaptive image setting.

In some embodiments, in fig. 9, the selector 52 indicates that the adaptive image setting is selected. After the user presses the confirm key or the direction right key of the control device, as shown in fig. 10, the user interface further includes

controls

5151 and 5153, and the

controls

5151 and 5153 are respectively the adaptive image setting state, the automatic start, and the time setting. When the selector 52 indicates that the adaptive image setting state is selected, the user may change the state of the adaptive image setting by pressing a confirmation key of the control device. When the selector 52 indicates that automatic on is selected, the user can set whether the automatic on is on or off by pressing the enter key of the control device. Taking 8:00-18:00 as an example, when automatically turning on and off, when the time reaches after 18:00, the adaptive image setting is automatically set to the off state, and when 8:00 later on the next day, the adaptive image setting remains in the off state unless the user manually changes the adaptive image setting to the on state after 8: 00. When the adaptive image is automatically turned on and turned on, the adaptive image setting is automatically set to be in a turned-off state after the time reaches 18:00, and the adaptive image setting is automatically changed to be in a turned-on state after 8:00 of the next day without manual change of a user. Because the time of the sun rising and falling is different according to the geographic position of the user, the user can adapt the change time of the image setting according to the time setting of the sun rising and falling. When the selector 52 indicates that the time setting is selected, the user can modify the time for which the adaptive image setting is changeable by pressing a numeric key or up and down keys of the control device.

More and more image setting parameters are added on the user interface for interacting with the user, so that the user can conveniently adjust the parameters of the image quality according to the actual watching scene. However, the ordinary user is often quite "confusing" in the face of many image setting parameters, and it is not clear at all what the parameters are useful to the user, and how to set the parameters is more difficult. Therefore, although the current smart tv is more and more sophisticated in the user interaction function of image settings, the user generally cannot easily select and adjust the parameters of the settings, and thus the image quality may not be ideal in some viewing environments.

In order to solve the above technical problem, an embodiment of the present application provides a method for adjusting image display brightness and color temperature.

As shown in fig. 11, the method specifically includes:

step S111: and judging whether the current time is within a first preset time.

In some embodiments, a first preset time period of 08:00-18:00 is set in the present application in consideration of poor control of the brightness level when the user uses the display device at night, and the user can change the state of the adaptive image setting when the first preset time period is within the first preset time period. The user can change the first preset time according to the region. For example, the preset time may be set to 07:00 to 17:00 when the user's location is relatively brighter than dark.

If the current time is within the first preset time, step S112 is performed.

Step S112: judging whether the self-adaptive image setting is in an open state;

in some embodiments, an Adaptive Picture Setting (APS) switch is required to be set in the user interface, and has two options: ON and OFF, the presence of which may provide a user with a choice (without forcing the user to go ON). By default, the adaptive image setting switch is in the OFF state, as shown in fig. 6.

When the adaptive image setting is in the OFF state, the image setting parameters at this time are in a "still" state regardless of the brightness of the environment, weather conditions, and network connection state at this time. The adaptive adjustment of the effect displayed by the display device starts to enter the active state only when the adaptive image setting is in the ON state.

If the adaptive image setting is the on state, step S113 is performed.

Step S113: judging whether to connect a network;

if the network is connected, go to step S114;

step S114: acquiring the weather condition of the current city in real time by means of a network;

in some embodiments, the weather conditions of the current city may be obtained in real time by the current network application. The current city can be set by the user in advance, and can also be automatically positioned through a positioning system. The time of the network can also be synchronized by connecting the networks.

In some embodiments, the brightness and color temperature of the image display may be adjusted by the acquired weather conditions. The acquired weather conditions are classified into the following: clear, cloudy, and rainy (snowy). The characteristics of the four types of weather conditions are different from each other, and we generally classify the light and dark conditions of color temperature and ambient light from the four types of weather as shown in table 1:

TABLE 1

According to the data in table 1, the color temperature, the brightness of the environment and the weather have different effects on the color tone of the viewing environment under different weather conditions. Firstly, presetting a set of default brightness values and color temperature values (white balance parameters) for each weather condition, then acquiring real-time weather conditions through a connection network when the display device is in a self-adaptive image setting starting state, and refreshing the brightness values and the color temperature values of the display device according to the acquired real-time weather conditions.

Step S115: acquiring the light intensity of the current environment;

in some embodiments, another condition on which the effects of adjusting the brightness and color temperature of an image display are based is the brightness of light in the viewing environment of the display device, and the measurement of the brightness of light in the viewing environment is herein provided by light sensors, which are generally inexpensive and by which changes in light in the ambient environment can be sensed more quickly and accurately. The position of the light sensor is at the top of the display as shown in fig. 5.

When the adaptive image setting switch on the user interface is turned on, the light sensor starts to be in a working state. The light sensing device can sense the brightness change of the ambient light. In this application, we define the indoor light intensity as three levels, i.e. high, proper and low, and the definition of these three levels is shown in table 2:

TABLE 2

Intensity of indoor light	Indoor light brightness level
		＜＝a	Is low in
＞a&&＜＝b	Is suitable for
		＞b	Height of

In some embodiments, step S114 and step S115 may be performed simultaneously or sequentially.

Step S116: and adjusting the brightness value and the color difference value of the image display according to the weather condition and the light intensity.

In some embodiments, if the display device is connected to a network, the brightness and color temperature values of the display device are comprehensively determined by the weather condition and the brightness of the light of the network, and are adjusted, specifically, the brightness and color temperature of the display device can be adjusted according to table 3.

TABLE 3

If the network is not connected, go to step S117;

step S117: and acquiring the light intensity of the current environment, and adjusting the brightness value and the color difference value of image display according to the light intensity.

In some embodiments, when the network is not connected, the brightness and color temperature values of the display device are determined by the brightness and darkness of the viewing environment, and are adaptively adjusted. When the light sensor senses that the brightness of the ambient light changes, the brightness and the color temperature of the display device are correspondingly adjusted. The brightness of the ambient viewing light not only affects the brightness adjustment of the display device, but also affects the color temperature value. From the viewpoint of the brightness of indoor light, the adjustment relationship between the color temperature value and the brightness value of the viewing environment is shown in table 4:

TABLE 4

If the adaptive image setting is not the on state, step S118 is performed.

Step S118: and controlling the brightness and the color difference of the image display to be restored to default values.

In some embodiments, once the user sets the adaptive image to the off state, the brightness and color difference of the image display are restored to the default values.

If the current time is not within the first preset time, step S119 is performed.

Step S119: controlling the adaptive image to be set in a closed state;

in some embodiments, a first preset time period of 08:00-18:00 is set in the present application in consideration of poor control of the brightness level when the user uses the display device at night, and when the first preset time period is not within the first preset time period, the adaptive image setting is automatically set to the off state. The brightness and color temperature of the display device will return to the default values before entering the automatic adjustment mode, the adaptive image setting switch on the user interface will automatically set gray, and at this time, the user cannot adjust the display device, and the setting parameters of the image will enter the automatic adjustment mode again when the user turns on the adaptive image setting switch again until the next time period (the time is between 08:00 and 18: 00). The adaptive image settings can also be automatically turned on at 08:00-18:00 as desired by the user.

Step S118 is executed after step S119, or step S118 is executed while step S119 is executed.

The step S111 is continuously performed at intervals of a second preset time.

In some embodiments, when the adaptive image setting is turned on at the first preset time, the local weather condition and the light intensity of the current viewing environment are acquired every other hour, and the brightness and the color temperature of the image display are adjusted according to the current weather condition and the light intensity.

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

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

Claims

1. A display device, comprising:

a display;

a controller for performing:

2. The display device according to claim 1, wherein the controller is further configured to perform:

3. The display device according to claim 1, wherein the controller is further configured to perform:

4. The display device according to claim 1, wherein the controller is further configured to perform:

5. The display device of claim 1, wherein the light intensity comprises a low level, a moderate level, and a high level, and the weather condition comprises sunny, cloudy, and sleet.

6. A method for adjusting brightness and color temperature of image display, the method comprising:

7. The method of claim 6, further comprising:

8. The method of claim 6, further comprising:

9. The method of claim 6, further comprising:

10. The method of claim 6, wherein the light intensity comprises a low level, a moderate level, and a high level, and the weather condition comprises sunny, cloudy, and sleet.