CN112397033A

CN112397033A - Display device and backlight brightness adjusting method

Info

Publication number: CN112397033A
Application number: CN202010377076.1A
Authority: CN
Inventors: 刘晓洁; 王之奎
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2019-08-18
Filing date: 2020-05-07
Publication date: 2021-02-23
Also published as: WO2021031620A1

Abstract

The application provides a display device and a backlight brightness adjusting method, when an image acquisition device does not work, the backlight brightness of a display is set to be first backlight brightness according to the ambient brightness, and when the image acquisition device works, the backlight brightness of the display is adjusted to be second backlight brightness according to the ambient brightness. Because the second backlight brightness is higher than the first backlight brightness, the backlight brightness of the display can be prevented from being automatically reduced along with the lower ambient brightness in a dark scene by the display equipment, the automatic light supplementing effect can be generated for the environment where the display equipment is located, namely, the ambient brightness is improved, the quality of the image collected by the image collecting device is optimized, the automatic frame dropping is not needed, even if the frame dropping is needed, the frame dropping quantity can be reduced to a certain extent, the influence on the fluency of previewing the video is avoided, and the user experience is improved.

Description

Display device and backlight brightness adjusting method

The present application claims priority of chinese patent application having application number 201910761468.5 entitled "display device backlight brightness adjusting method and display device" filed in 2019 on 8, 18.8.2019, the entire contents of which are incorporated herein by reference.

Technical Field

The present application relates to the field of display device technologies, and in particular, to a display device and a backlight brightness adjusting method.

Background

Currently, since a display device such as a smart electrical gauge can provide a user with a play picture such as audio, gauge frequency, pictures, etc., it is receiving a wide attention of the user.

With the development of big data and artificial intelligence, the functional requirements of users on display devices are increasing day by day. For example, when a user wants to play a display picture, a multi-channel regular frequency chat picture is presented; or when the user is in a game scene, displaying that the participant is a real picture in real time; alternatively, the user learns the current screen content in the educational application and performs a process audio loss with the parent/teacher in real time.

Therefore, it is desirable to provide a display device capable of implementing the above-described functions.

Disclosure of Invention

Given this reference, the present application provides a display apparatus and a backlight luminance adjusting method.

In a first aspect, the present application provides a display device, a display, a user displaying a user interface;

the image acquisition device uses Chu to acquire an image picture;

a controller configured to:

responding to starting, and acquiring first environment brightness of the environment;

setting the backlight brightness of the display to be first backlight brightness according to the first environment brightness;

responding to the activation of the image acquisition device, adjusting the backlight brightness of the display to the second backlight brightness according to the first environment brightness, wherein the second backlight brightness is higher than the first backlight brightness.

In a second aspect, the present application provides a backlight brightness adjusting method, applying a display apparatus having an image acquisition device, the method comprising:

responding to starting up of the display equipment, and acquiring first environment brightness of the environment where the display equipment is located;

responding to the operation of the image acquisition device, and adjusting the backlight brightness of the display to the second backlight brightness according to the first environment brightness, wherein the second backlight brightness is higher than the first backlight brightness.

In the above embodiments, when the image capturing device is not operating, the backlight brightness of the display is set to be the first backlight brightness according to the ambient brightness, and when the image capturing device is operating, the backlight brightness of the display is adjusted to be the second backlight brightness according to the ambient brightness. Since the second backlight brightness is high Chu the first backlight brightness, when the image acquisition device works in the dark scene, on one hand, the display device can be prevented from automatically reducing the backlight brightness of the display device along with the lower ambient brightness in the dark scene, so that the problem that the display effect of the pre-foraging window image is poor due to the low screen brightness can be solved, on the other hand, the display device with the higher backlight brightness is equivalent to a light source in the dark scene, so that the automatic light supplementing effect can be generated on the environment where the display device is located, that is, the ambient brightness is improved, the quality of the image acquired by the image acquisition device can be optimized, the frame dropping is not needed, the frame dropping quantity can be reduced to a certain extent even if the frame dropping is needed, further, the influence on the smoothness of the pre-foraging frequency is avoided, and the user experience is improved.

Drawings

In order to more clearly describe the embodiments of the present application, the drawings needed to be used in the examples will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained based on these drawings without inventive exercise.

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus;

fig. 2 is a block diagram schematically showing a hardware configuration of the control apparatus 100;

a hardware configuration block diagram of the display device 200 is exemplarily shown in fig. 3;

a block diagram of the hardware architecture of the display device 200 according to fig. 3 is exemplarily shown in fig. 4;

fig. 5 schematically shows a functional configuration of the display device 200;

fig. 6a schematically illustrates a software configuration in the display device 200;

fig. 6b schematically shows a configuration of an application in the display device 200;

a schematic diagram of a user interface of the display device 200 is exemplarily shown in fig. 7 a;

fig. 7b and fig. 7c together illustrate a possible application scenario of the embodiment of the present application;

FIG. 8 is a flowchart illustrating a method for adjusting backlight brightness of a display device according to an exemplary embodiment of the present application;

FIG. 9 is a graph illustrating the relationship between the ambient brightness S and the backlight brightness L;

FIG. 10 is a flowchart illustrating a refinement of step 805 in the embodiment illustrated in FIG. 8 of the present application;

FIG. 11 is a flowchart illustrating a method for adjusting backlight brightness of a display device according to an exemplary embodiment of the present application;

fig. 12 is a flowchart illustrating a method for adjusting backlight brightness of a display device according to an exemplary embodiment of the present application.

Detailed Description

In order to make the embodiments in the present application better understood by those skilled in the art, the embodiments in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. Given the examples herein, all other examples obtained by those of ordinary skill in the art without making any creative effort shall be deemed to fall within the scope of the present application.

The display device provided in the present application may be a display device having a plurality of chip architectures, such as the display device having a dual-chip (dual hardware system) architecture shown in fig. 3 to fig. 5 in the present application, or may also be a display device having a non-dual-chip architecture, and a single chip or more chips may be selected according to chip performance as long as the functions mentioned in the embodiments of the present application can be implemented, which is not limited in the present application.

For the user to use, various interfaces for external devices are usually provided on the display apparatus, so as to let out different peripheral apparatuses or cables for implementing the corresponding functions. When a high-definition camera is connected to an interface of the display device, if a hardware system of the display device does not have a hardware interface of a high-pixel camera receiving the source code, data received by the camera cannot be displayed on a display screen of the display device.

The concept to which the present application relates will be first explained below with reference to the drawings. It should be noted that the following descriptions of the concepts are only for the purpose of facilitating understanding of the contents of the present application, and do not represent limitations on the scope of the present application.

It should be understood that note surprised "first", "second", "third", etc., in the description and claims of this application and in the preceding drawings are used to distinguish between similar elements and not necessarily a particular sequence or order. It is to be understood that the data so used may be interchanged under appropriate circumstances such as may be present in sequences other than those illustrated or described in the embodiments of the application.

Moreover, note surprised "includes" and "has" and any variations thereof, which 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 those elements explicitly listed, but may include other elements not expressly listed or inherent to the note such product or apparatus.

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

"remote control" surprised, as used herein, refers to a component of an electronic device (such as the display device disclosed herein) that is typically wirelessly controllable over a relatively short distance. Typically using infrared and/or Radio Frequency (RF) signals and/or bluetooth to connect with the electronic device, and may also include WiFi, wireless USB, bluetooth, motion sensor, etc. For example: the hand-held touch remote controller replaces most of the physical built-in hard keys in the common remote control device with the user interface in the touch screen.

As used herein, the term surprised "gesture" refers to a user's action by a change in hand shape or hand motion, using a Chu to express an intended idea, action, purpose, or result.

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

Wherein, the control device 100 may be a remote controller 100A, which may communicate with the display apparatus 200 through an infrared protocol communication, a bluetooth protocol communication, a ZigBee (ZigBee) protocol communication, or other short-distance communication, and control the display apparatus 200 with a Chu through a wireless or other wired manner. The user may input a user instruction through a key on a remote controller, an surprised tone input, a control panel input, etc. to control the display apparatus 200. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right movement keys, an surprised tone input key, a menu key, a power on/off key, etc. on the remote controller, thereby implementing a function of controlling the display device 200.

The control apparatus 100 may also be a smart device, such as a mobile terminal 100B, a tablet computer, a notebook computer, etc., which may communicate with the display device 200 through a Local Area Network (LAN), a Wide Area Network (WAN), a Wireless Local Area Network (WLAN), or other networks, and implement control of the display device 200 through an application program corresponding to the display device 200.

A "user interface" is a media interface between an application or operating system and a user for the exchange of information and data that enables the conversion of the internal form of information to 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 a programmable interface element such as an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc.

For example, the mobile terminal 100B and the display device 200 may each have a software application installed thereon, so that connection communication between the two can be realized through a network communication protocol, and the purpose of one-to-one control operation and data communication can be further realized. Such as: a control instruction protocol can be established between the mobile terminal 100B and the display device 200, a remote control keyboard is synchronized to the mobile terminal 100B, and the function of controlling the display device 200 is realized by controlling a user interface on the mobile terminal 100B; the audio content displayed on the mobile terminal 100B may also be transmitted to the display device 200 to implement a synchronous display function.

As shown in fig. 1, the display apparatus 200 may also perform data communication with the server 300 through various communication means. In various embodiments of the present application, the display device 200 may be allowed to be communicatively coupled to the server 300 via a local area network, a wireless local area network, or other network. The server 300 may provide various contents and actions to the display apparatus 200.

Illustratively, the display device 200 receives software Program updates, or accesses a digital media library stored by a process, by sending and receiving information, and by Electronic Program Guide (EPG) validation. The servers 300 may be a group or groups, and may be one or more types of servers. Other web service contents such as regular video on demand and advertisement service are provided through the server 300.

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

The display apparatus 200 may additionally provide an intelligent network power meter function providing a computer support function in addition to the broadcast receiving power meter function. Examples include network power gauges, smart power gauges, internet protocol power gauges (IPTV), and the like.

As shown in fig. 1, a camera may be connected or disposed on the display device, and is used to present a picture taken by the camera on a display interface of the display device or other display devices, so as to implement a trade-loss chat between users. Specifically, the picture shot by the camera can be displayed on the display device in a full screen mode, a half screen mode or any optional area.

As an exemplary connection mode, the camera is connected with the display rear shell through the connection plate, and is fixedly installed in the middle of the upper side of the display rear shell, and as an installable mode, the camera can be fixedly installed at any position of the display rear shell, and it is ensured that an image acquisition area of the camera is not shielded by the rear shell, for example, the image acquisition area is the same as the display orientation of the display device.

As another exemplary connection mode, the camera is connected to the display rear shell through a connection board or other conceivable connector, the camera is capable of lifting and descending, the connector is provided with a lifting motor, when a user wants to use the camera or an application program wants to use the camera, the camera is lifted out of the display, and when the camera is not needed, the camera can be embedded behind the rear shell to protect the camera from being damaged.

As an embodiment, the camera adopted in the present application may have 1600 ten thousand pixels, so as to achieve the purpose of ultra high definition display. In actual use, cameras higher or lower than 1600 ten thousand pixels may also be used.

After the camera is installed on the display device, the contents displayed by different application scenes of the display device can be fused in various different modes, so that the function which cannot be realized by the traditional display device is achieved.

Illustratively, a user may conduct a scheduled chat with at least one other user while watching a scheduled program. The presentation of the scheduled frequency program can be used as a background picture, and a window for scheduled frequency chatting is displayed on the background picture. Pictorially, this function may be referred to as "chat while looking".

In some embodiments, in a "chat while watching" scenario, at least one regular frequency chat is conducted across the terminals while watching a live regular frequency or a network regular frequency.

In other embodiments, the user can conduct a regular frequency chat with at least one other user while entering the educational application for learning. For example, a student may implement a process deficit with a teacher while learning content in an educational application. Figuratively, this function may be referred to as "chatting while learning".

In other embodiments, a user performs a regular chat with a player entering a card game while playing the card game. For example, a player may implement a process deficit with other players when entering a gaming application to participate in a game. Figuratively, the function may be referred to as "play while watching".

In some exemplary embodiments, a game scene is fused with a standard frequency picture, a portrait in the standard frequency picture is scratched and displayed in the game picture, and user experience is improved.

In some exemplary embodiments, in a motion sensing game (such as a ball playing game, a boxing game, a running game, a dancing game and the like), the posture and the motion of a human body, the detection and the tracking of limbs, the detection of key point data of human skeleton and the like are obtained through a camera, and then the detection and the fusion with an animation in the game are carried out, so that the game of scenes such as sports, dancing and the like is realized.

In other embodiments, the user may be in a karaoke application with at least one other user for both regular and surprised tones. Figuratively, this function may be referred to as "sing while looking". Preferably, when at least one user enters the application in a chat scenario, a plurality of users can jointly complete recording of a song.

In other embodiments, the user may turn on the camera locally to take pictures and videos, visually, which may be referred to as "looking into the mirror".

In other examples, more or less functionality may be added. The function of the display device is not particularly limited in the present application.

Fig. 2 is a block diagram schematically showing the configuration of the control apparatus 100 according to the exemplary embodiment. As shown in fig. 2, the control device 100 includes a controller 110, a communicator 130, a user input/output interface 140, a memory 190, and a power supply 180.

The control apparatus 100 is configured to control the display device 200, and to receive an input operation instruction from a user, and convert the operation instruction into an instruction recognizable and responsive by the display device 200, and to play a role of mediating between the user and the display device 200. Such as: the user operates the channel up/down key on the control device 100, and the display device 200 responds to the channel up/down operation.

In some embodiments, the control device 100 may be a smart device. Such as: the control apparatus 100 may install various applications that control the display device 200 according to user demands.

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

The controller 110 includes a processor 112, a RAM113 and a ROM114, a communication interface, and a communication bus. The controller 110 uses the Chu to control the operation of the control device 100, as well as the communication cooperation between the internal components and the external and internal data processing functions.

The communicator 130 enables communication of control signals and data signals with the display apparatus 200 under the control of the controller 110. Such as: the received user input signal is transmitted to the display apparatus 200. The communicator 130 may include at least one of a WIFI module 131, a bluetooth module 132, an NFC module 133, and the like.

A user input/output interface 140, wherein the input interface includes at least one of a microphone 141, a touch pad 142, a sensor 143, a key 144, and the like. Such as: the user can input a user command by surprised sound, touch, gesture, pressing, etc., and the input interface converts the received analog signal into a digital signal and converts the digital signal into a corresponding command signal, which is sent to the display device 200.

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

In some embodiments, the control device 100 includes at least one of a communicator 130 and an output interface. The communicator 130 is configured in the control device 100, such as: the modules of WIFI, bluetooth, NFC, etc. may send the user input command to the display device 200 through the WIFI protocol, or the bluetooth protocol, or the NFC protocol code.

And a memory 190 for storing various operation programs, data and applications for driving and controlling the control apparatus 100 under the control of the controller 110. The memory 190 may store various control signal commands input by a user.

Power supply 180 uses Chu to provide operating power support for the various elements of control device 100 under the control of controller 110. A battery and associated control circuitry.

In some embodiments, as shown in fig. 3 to 5, a hardware configuration block diagram of a hardware system in the display apparatus 200 employing a dual chip is given.

When a dual hardware system architecture is adopted, the mechanism relationship of the hardware system can be shown in fig. 3. For convenience of description, one hardware system in the dual hardware system architecture will be referred to as a first hardware system or a system, a-chip, and the other hardware system will be referred to as a second hardware system or N-system, N-chip. The chip A comprises a controller of the chip A and various interfaces, and the chip N comprises a controller of the chip N and various interfaces. The a-chip and the N-chip may each have a separate operating system installed therein, so that there are two separate but poorly associated subsystems in the display device 200.

In some embodiments, the A chip may also be referred to as a first chip and may implement a functionally equivalent Chu or contain a first controller, and the N chip may also be referred to as a second chip and may implement a functionally equivalent Chu or contain a second controller.

As shown in fig. 3, the a chip and the N chip may be connected, communicated and powered through a plurality of different types of interfaces. The interface type of the interface between the a chip and the N chip may include a General-purpose input/output (GPIO) interface, a USB interface, an HDMI interface, a UART interface, and the like. One or more of these interfaces may be used for communication or power transfer between the a-chip and the N-chip. For example, as shown in fig. 3, in the dual hardware system architecture, the N chip may be powered by an external power source (power), and the a chip may not be powered by the external power source but by the N chip.

In addition to the interface for connecting with the N chip, the a chip may further include an interface for connecting other devices or components, such as an MIPI interface for connecting a Camera (Camera) with a tap shown in fig. 3, a bluetooth interface, or the like.

Similarly, in addition to the interface using the Chu to connect with the N chip, the N chip may further include an VBY interface using the Chu to connect with a display screen TCON (timer Control register), an i2S interface for connecting a power Amplifier (AMP) and a Speaker (Speaker); and an IR/Key interface, a USB interface, a Wifi interface, a bluetooth interface, an HDMI interface, a Tuner interface, and the like.

The dual chip architecture is further described below in conjunction with fig. 4. It should be noted that fig. 4 is only a few exemplary illustrations of the dual hardware system architecture of the present application, and does not represent a limitation of the present application. In actual practice, both hardware systems may contain more or less hardware or interfaces as desired.

A block diagram of the hardware architecture of the display device 200 according to fig. 3 is exemplarily shown in fig. 4. As shown in fig. 4, the hardware system of the display device 200 may include an a chip and an N chip, and a module connected to the a chip or the N chip through various interfaces.

The N-chip may include a tuner demodulator 220, a communicator 230, an external device interface 250, a controller 210, a memory 290, a user input interface, a normal frequency processor 260-1, an audio processor 260-2, a display 280, an audio output interface 270, and a power supply. The N-chip may also include more or fewer modules in other embodiments.

The tuner demodulator 220 is configured to perform modulation and demodulation processing such as amplification, mixing, and resonance on a broadcast electrical signal received by a wired or wireless manner, so as to demodulate an audio signal carried in a frequency of a electrical channel selected by a user and additional information (e.g., an EPG data signal) from a plurality of wireless or wired broadcast electrical signals. Depending on the broadcasting system of the electrical signal, the signal path of the tuning demodulator 220 may be various, such as: terrestrial broadcast, cable broadcast, satellite broadcast, or deficit network broadcast, etc.; according to different modulation types, the adjustment mode of the signal can be a digital modulation mode or an analog modulation mode; and the tuning demodulator 220 may demodulate the analog signal and/or the digital signal according to the kind of the received electrical signal.

Tuner demodulator 220 is further responsive to the user selected electrical channel frequency and the electrical specification signal carried thereby, using a Chu based on the user selection and as controlled by controller 210.

In other exemplary embodiments, the tuner/demodulator 220 may be in an external device, such as an external set-top box. In this way, the set-top box outputs the electrical gauge audio signal after modulation and demodulation, and inputs the electrical gauge audio signal into the display apparatus 200 through the external device interface 250.

The communicator 230 is a component for communicating with an external device or an external server according to various communication protocol types. For example: the communicator 230 may include a WIFI module 231, a bluetooth communication protocol module 232, a wired ethernet communication protocol module 233, and other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module.

The display apparatus 200 may establish a connection of a control signal and a data signal with an external control apparatus or a content providing apparatus through the communicator 230. For example, the communicator may receive a control signal of the remote controller 100A according to the control of the controller.

The external device interface 250 is a component for providing data transmission between the N-chip controller 210 and the a-chip and other external devices. The external device interface may be connected with an external apparatus such as a set-top box, a game device, a notebook computer, etc. in a wired/wireless manner, and may receive data such as a regular frequency signal (e.g., moving image), an audio signal (e.g., music), additional information (e.g., EPG), etc. of the external apparatus.

The external device interface 250 may include: a High Definition Multimedia Interface (HDMI) terminal 251, a Composite Video Blanking Sync (CVBS) terminal 252, an analog or digital component terminal 253, a Universal Serial Bus (USB) terminal 254, a red, green, blue (RGB) terminal (not shown), and the like. The number and type of external device interfaces are not limited by this application.

The controller 210 controls the operation of the display device 200 and responds to the user's operation by running various software control programs (e.g., an operating system and/or various application programs) stored on the memory 290.

As shown in fig. 4, the controller 210 includes a read only memory RAM214, a random access memory ROM213, a graphics processor 216, a CPU processor 212, a communication interface 218, and a communication bus. The RAM214, the ROM213, the graphic processor 216, the CPU processor 212, and the communication interface 218 are connected via a bus.

A ROM213 for storing instructions uttered by various systems. For example, when the power-on signal is received, the display apparatus 200 starts to power up, and the CPU processor 212 executes system-disabling instructions in the ROM, copies the operating system stored in the memory 290 to the RAM214, and starts to power up the operating system. After the operating system has been uttered, the CPU processor 212 copies the various applications in the memory 290 into the RAM214 and then begins to utter the various applications.

Graphics processor 216 uses the Chu to generate various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The device comprises an arithmetic unit which carries out operation by receiving various exchange and loss instructions input by a user and displays various objects according to display attributes. And a renderer for generating the various objects resulting from the base arithmetic unit, the result of the rendering being displayed on display 280.

CPU processor 212 executes operating system and application program instructions stored in memory 290 with a Chu. And executing various applications, data and contents according to various transaction loss instructions received from the outside so as to finally display and play various audio contents.

In some exemplary embodiments, the CPU processor 212 may include a plurality of processors. The plurality of processors may include a main processor and a plurality of or a sub-processor. The main processor is given the instruction to perform some operations of the display apparatus 200 in the pre-power-up mode, and/or to perform operations of displaying a picture in the normal mode. A plurality of or one sub-processor are provided with a hash operation performed under standby mode or the like.

The communication interfaces may include a first interface 218-1 through an nth interface 218-n. These interfaces may be network interfaces that are connected to external devices via a network.

The controller 210 may control the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 280, the controller 210 may perform an operation related to the object selected by the user command.

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

Memory 290 includes various software modules that store instructions for driving and controlling display device 200. Such as: various software modules stored in memory 290, including: the system comprises a basic module, a detection module, a communication module, a display control module, a browser foraging module, various service modules and the like.

The basic module is the bottom software module which uses Chu to display signal communication among the hardware in device 200 and sends processing and control signals to the upper layer module. The detection module is a management module which collects various information from various sensors or user input interfaces by using the Chu, and performs digital-to-analog conversion and analysis management.

For example: the surprised sound identification module comprises a surprised sound analysis module and a surprised sound command database module. The display control module is a module for controlling the display 280 to display image contents, and may use Chu to play multimedia image contents and UI interface information. The communication module is used for carrying out control and data communication with external equipment. The system comprises a browser foraging module and a browser foraging server, wherein the browser foraging module is used for executing data communication between the browser foraging servers. The service module is a module which uses Chu to provide various services and various application programs.

Meanwhile, the memory 290 is also used to store received external data and user data, images of respective subjects in various user interfaces, and a plan view effect map of a focus object, etc.

The user input interface sends a user input signal to the controller 210 with a pointer, or transmits a signal output from the controller to the user. For example, the control device (e.g., a mobile terminal or a remote controller) may send an input signal, such as a power switch signal, a channel selection signal, a volume adjustment signal, etc., input by a user to the user input interface, and then the input signal is forwarded to the controller by the user input interface; alternatively, the control device may receive an output signal such as audio, normal frequency, or data output from the user input interface via the controller, and display the received output signal or output the received output signal in audio or vibration form.

In some embodiments, a user may enter a user command on a Graphical User Interface (GUI) displayed on the display 280, and the user input interface receives the user input command 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.

Chu receives the normal frequency signal, and according to the standard codec protocol of the input signal, performs normal frequency data processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis, so as to obtain the normal frequency signal to be directly displayed or played on the display 280.

Illustratively, the normal frequency processor 260-1 includes a demultiplexing module, a normal frequency decoding module, an image synthesizing module, a frame rate conversion module, a display formatting module, and the like.

Wherein, demultiplexing module demultiplexes the input audio data stream with the Chu, if MPEG-2 is input, demultiplexing module demultiplexes into a normal frequency signal and an audio signal, etc.

And the pilot frequency decoding module uses the Chu to process the demultiplexed pilot frequency signal, including decoding and scaling processing, 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 scaled normal frequency image by the graphic generator so as to generate an image signal for display.

The frame rate conversion module is configured to convert the frame rate of the input standard frequency, such as converting the frame rate of the input standard frequency of 24Hz, 25Hz, 30Hz, or 60Hz into the frame rate of 60Hz, 120Hz, or 240Hz, where the input frame rate may be related to the source standard frequency stream, and the output frame rate may be related to the update rate of the display. The input is realized in a common format by using a frame insertion mode.

And a display formatting module for converting the signal output by the frame rate conversion module into a signal conforming to a display format of a display, such as converting the format of the signal output by the frame rate conversion module to output an RGB data signal.

And a display 280 for receiving the image signal input from the standard frequency processor 260-1 and displaying the standard frequency content and image and the menu manipulation interface. Display 280 includes a display component that presents a picture with a Chu and a drive component that drives the display of an image. The regular frequency content may be displayed from the regular frequency in the broadcast signal received by the tuner/demodulator 220, or from the regular frequency content input from the communicator or the external device interface. And a display 220 simultaneously displaying a user manipulation interface UI generated in the display apparatus 200 and used to control the display apparatus 200.

And, a driving component for driving the display according to the type of the display 280. Alternatively, in case the display 280 is a projection display, it may also comprise a projection device and a projection screen.

Audio processor 260-2 receives the audio signal with Chu, and performs decompression and decoding, and audio data processing such as noise reduction, digital-to-analog conversion, and amplification processing according to the standard codec protocol of the input signal, to obtain an audio signal that can be played in speaker 272.

Audio output interface 270, for receiving the audio signal outputted from audio processor 260-2 under the control of controller 210, may include speaker 272, or output to external sound output terminal 274 of the generating device of the external device, such as: external sound terminal or earphone output terminal.

In some other exemplary embodiments, the normal frequency processor 260-1 may comprise one or more chips. The audio processor 260-2 may also include one or more chips.

And, in other exemplary embodiments, the regular audio processor 260-1 and the audio processor 260-2 may be separate chips or may be integrated in one or more chips with the controller 210.

Power supply Chu provides power supply support for display device 200 from the power input from the external power source under the control of controller 210. The power supply may include a built-in power supply circuit installed inside the display apparatus 200, or may be a power supply installed outside the display apparatus 200, such as a power supply interface for providing an external power supply in the display apparatus 200.

Similar to the N-chip, as shown in fig. 4, the a-chip may include a controller 310, a communicator 330, a detector 340, and a memory 390. A user input interface, a normal frequency processor, an audio processor, a display, an audio output interface may also be included in some embodiments. In some embodiments, there may also be a power supply that independently powers the A-chip.

Communicator 330 is a component that communicates with external devices or external servers using the Chu in accordance with various communication protocol types. For example: the communicator 330 may include a WIFI module 331, a bluetooth communication protocol module 332, a wired ethernet communication protocol module 333, and other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module.

The a-chip communicator 330 and the N-chip communicator 230 are also of the same type. For example, the N-chip WiFi module 231 is used to connect to an external network, generate network communication with an external server, and the like. The WiFi module 331 of the a chip is used to connect to the WiFi module 231 of the N chip without making a direct connection with an external network or the like. Therefore, for the user, a display device as in the previous embodiment displays a WiFi account to the outside.

Detector 340, is a component of display device A chip that uses Chu to collect the signal of the external environment or traffic. The detector 340 may include a light receiver 342, a sensor for collecting the intensity of ambient light, which may be used to adapt to display parameter changes, etc.; the system can further comprise an image collector 341, such as a camera, a camera and the like, which can collect external environment scenes by using a Chu, is used for collecting attributes of the user or handing over and losing gestures with the user, can change display parameters in a self-adaptive manner, and can also recognize gestures of the user so as to realize the function of losing with the user.

An external device interface 350, which provides a component for data transmission between the controller 310 and the N-chip or other external devices. The external device interface may be connected with an external apparatus such as a set-top box, a game device, a notebook computer, etc. in a wired/wireless manner.

The controller 310 controls the operation of the display apparatus 200 and responds to the user's operation by running various software control programs stored on the memory 390 (e.g., using an installed third party application, etc.), and interfacing with the N-chip.

As shown in fig. 4, the controller 310 includes a read only memory ROM313, a random access memory RAM314, a graphics processor 316, a CPU processor 312, a communication interface 318, and a communication bus. The ROM313 and the RAM314, the graphic processor 316, the CPU processor 312, and the communication interface 318 are connected via a bus.

A ROM313 for storing instructions uttered by various systems. The CPU processor 312 renders instructions for running the system in ROM and copies the operating system stored in memory 390 to RAM314 to begin running the operating system. After the operating system has been vocalized, the CPU processor 312 copies the various applications in the memory 390 into the RAM314 and then begins to vocalize the various applications.

A CPU processor 312 for executing the operating system and application program instructions stored in the memory 390, and communicating with the N-chip, transmitting and rendering signals, data, instructions, etc., and executing various application programs, data and contents according to various rendering instructions received from the outside so as to finally display and play various audio contents.

The communication interfaces may include a first interface 318-1 through an nth interface 318-n. These interfaces may be network interfaces connected to external devices via a network, or may be network interfaces connected to the N-chip via a network.

The controller 310 may control the overall operation of the display apparatus 200. For example: in response to receiving the user command selecting a UI object for display on display 280 with a Chu, controller 210 may perform an operation associated with the object selected by the user command.

A graphics processor 316 for generating various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The device comprises an arithmetic unit which carries out operation by receiving various exchange and loss instructions input by a user and displays various objects according to display attributes. And a renderer for generating various objects based on the operator and displaying the rendered result on the display 280.

Both the A-chip graphics processor 316 and the N-chip graphics processor 216 are capable of generating various graphics objects. Distinctively, if application 1 installs the A chip and application 2 installs the N chip, the A chip graphics processor 316 generates the graphics objects when the user makes user-entered instructions at the interface of application 1, and within application 1. When a user makes a command input by the user in the interface of the application 2 and within the application 2, a graphic object is generated by the graphic processor 216 of the N chip.

Fig. 5 is a schematic diagram of a functional configuration of a display device exemplarily shown in the present application according to some embodiments.

As shown in fig. 5, the memory 390 of the a-chip and the memory 290 of the N-chip respectively store an operating system, an application program, contents, user data, etc. by using a hash, and under the control of the controller 310 of the a-chip and the controller 210 of the N-chip, drive the system operation of the display apparatus 200 and respond to various operations of the user. The A-chip memory 390 and the N-chip memory 290 may include volatile and/or non-volatile memory.

For the N chip, memory 290, specifically stores an operating program for driving controller 210 in display device 200, and stores internal data for various applications built in display device 200, various applications downloaded by a user from an external device, various graphical user interfaces associated with the applications, and various objects associated with the graphical user interfaces, user data information, and various supported applications. The memory 290 is used to store system software such as an Operating System (OS) kernel, middleware, and applications, as well as to store input specification data and audio data, and other user data.

Memory 290, in particular, stores drivers and associated data for audio processor 260-1 and audio processor 260-2, display 280, communication interface 230, modem 220, input/output interfaces, and the like.

In some embodiments, memory 290 may store software and/or programs, software programs for representing an Operating System (OS) including, for example: a kernel, middleware, an Application Programming Interface (API), and/or an application program. For example, the kernel may control or manage system resources, or functions implemented by other programs (e.g., the middleware, APIs, or applications), and the kernel may provide interfaces to allow the middleware and APIs, or applications, to access the controller to implement controlling or managing system resources.

The memory 290, for example, includes a broadcast receiving module 2901, a channel control module 2902, a volume control module 2903, an image control module 2904, a display control module 2905, an audio control module 2906, an external instruction recognition module 2907, a communication control module 2908, a power control module 2910, an operating system 2911, and other application programs 2912, an interface layout management module 2913, an event transmission system 2914, a browser finder module, and the like. The controller 210 performs functions such as: the system comprises a broadcast electric gauge signal receiving and demodulating function, an electric gauge channel selection control function, a volume selection control function, an image control function, a display control function, an audio control function, an external instruction identification function, a communication control function, an optical signal receiving function, an electric power control function, a software control platform supporting various functions, a browser finder function and other various functions. Memory 390 includes various software modules for storing instructions for driving and controlling display device 200. Such as: various software modules stored in memory 390, including: the system comprises a basic module, a detection module, a communication module, a display control module, a browser foraging module, various service modules and the like. Since the functions of Chu memory 390 and memory 290 are similar, only the relevant portions are referred to memory 290, and thus detailed description is omitted here.

The memory 390 includes, for example, an image control module 3904, an audio control module 2906, an external instruction recognition module 3907, a communication control module 3908, a light receiving module 3909, an operating system 3911, and other application programs 3912, a browser and viewer module, and the like. The controller 210 performs functions such as: the system comprises an image control function, a display control function, an audio control function, an external instruction identification function, a communication control function, an optical signal receiving function, an electric power control function, a software control platform supporting various functions, a browser foraging function and other various functions. Differently, the external instruction recognition module 2907 of the N-chip and the external instruction recognition module 3907 of the a-chip can recognize different instructions.

Illustratively, since the image receiving device such as a camera is connected with the a-chip, the external instruction recognition module 3907 of the a-chip may include an image recognition module 3907-1, a graphic database is stored in the image recognition module 3907-1, and when the camera receives an external graphic instruction, the camera corresponds to the instruction in the graphic database to perform instruction control on the display device. Since the surprised sound receiving device and the remote controller are connected to the N-chip, the external command recognition module 2907 of the N-chip may include a surprised sound recognition module 2907-2, a surprised sound recognition module 2907-2 stores a surprised sound database, and a surprised sound receiving device, etc. performs a corresponding relationship with the command in the surprised sound database when receiving the surprised sound command from the outside or performing a command control on the display device. Similarly, a control device 100 such as a remote controller is connected to the N-chip, and a key command recognition module issues a command to the control device 100.

In some embodiments, there may be no part of the first chip and the second chip, the controller of the display device is an operating system at the software level, and the built-in application may be the same as the application in the dual-chip architecture display device. All the interfaces described above are also provided.

A block diagram of the configuration of the software system in the display device 200 in some embodiments is illustrated in fig. 6 a.

For an N-chip, as shown in fig. 6a, the operating system 2911, which includes executing operating software for handling various basic system services and for performing hardware related tasks, serves as an intermediary between applications and hardware components for data processing.

In some embodiments, portions of the operating system kernel may contain a series of software to manage the display device hardware resources and provide services to other programs or software code.

In other embodiments, portions of the operating system kernel may include one or more device drivers, which may be a set of software code in the operating system that assists in operating or controlling the devices or hardware associated with the display device. The driver may contain code to operate the audio, video and/or other multimedia components. Examples include a display, a camera, Flash, WiFi, and audio drivers.

As shown in fig. 6a, in some embodiments, the operating system 2911 may specifically include: an accessibility module 2911-1, a communications module 2911-2, a user interface module 2911-3, and a control application 2911-4.

In some embodiments, the operating system 2911 may further include: a camera scheduling module 2911-5, a camera driving module 2911-6 and a camera switching module 2911-7.

The accessibility module 2911-1 is configured to modify or access the application program to achieve accessibility and operability of the application program for displaying content.

A communication module 2911-2 for connection to other peripherals via associated communication interfaces and a communication network.

User interface module 2911-3 provides the object for displaying user interface with a Chu for each application to access, which may achieve user operability.

Control applications 2911-4 use Chu to control process management, switch foreground applications, including run-time applications, and the like.

Camera scheduling module 2911-5 uses a Chu to control the camera to turn on or off, and to raise or lower.

A camera driving module 2911-6 which drives a motor mechanically connected with the camera to lift or drop the camera under the control of the camera scheduling module 2911-5;

the camera switch module 2911-7 uses the pointer to open the camera under the control of the camera scheduling module 2911-5, i.e., to make it enter into the open state, or to close the camera, i.e., to make it enter into the closed state.

As shown in fig. 6a, in some embodiments, the event transmission system 2914 may be implemented within the operating system 2911 or within the application programs 2912. In some embodiments, an aspect is implemented within the operating system 2911, while implemented in the application 2912, for listening for various user input events, and will implement one or more sets of predefined operations in response to various events referring to the recognition of various types of events or sub-events.

In particular, the event transmission system 2914 may include an event listening module 2914-1 and an event identification module 2914-2. Among them, event monitoring module 2914-1 uses Chu to monitor the user input interface input event or sub-event.

The event identification module 2914-2 is used to input various event definitions for various user input interfaces, identify various events or sub-events, and transmit them to the process for executing one or more sets of their corresponding handlers.

It should be noted that the event or sub-event refers to an input detected by one or more sensors in the display device 200 and an input of an external control device (e.g., the control apparatus 100). Such as: surprised sound input various sub-events, gesture input sub-event of gesture recognition, and sub-event of remote control key command input of the control device. Illustratively, the one or more sub-events in the remote control comprise a variety of forms including, but not limited to, one or a combination of a Chu button press up/down/left-right/, a OK button, a button press, etc. And non-physical key operations such as move, hold, release, etc.

The interface layout management module 2913, directly or indirectly receiving the input events or sub-events from the event transmission system 2914, monitors the input events or sub-events, and updates the layout of the user interface, including but not limited to the position of each control or sub-control in the interface, and the size, position, and level of the container, which are related to the layout of the interface.

Since the functions of the operating system 3911 of the chip A are similar to those of the operating system 2911 of the chip N, reference may be made to the operating system 2911 for relevant details, and further description is omitted here.

As shown in fig. 6b, the application layer of the display device contains various applications that can be executed at the display device 200.

N-chip application layer 2912 may include, but is not limited to, one or more applications such as: regular on-demand applications, application centers, gaming applications, and the like. The application layer 3912 of the A-chip may include, but is not limited to, one or more applications such as: live power application, media center application, and the like. It should be noted that what applications are respectively contained in the a chip and the N chip is determined according to an operating system and other designs, and the application does not need to specifically limit and divide the applications contained in the a chip and the N chip.

The live broadcast electric gauge application program can provide live broadcast electric gauges through different signal sources. For example, a direct broadcast power gauge application may provide a power gauge signal using input from a cable power gauge, a radio broadcast, a satellite service, or other type of direct broadcast power gauge service. And, the live power gauge application may display the gauge frequency of the live power gauge signal on the display device 200.

Regular frequency on-demand applications may provide regular frequency from different storage sources. Unlike the live power gauge application, regular video broadcasting provides regular video displays from some storage source. For example, regular video on demand may come from a server side of cloud storage, from a local hard disk storage containing stored regular video programs.

The media center application program can provide various applications for playing multimedia contents. For example, a media center, which may be other than a live power gauge or a scheduled video on demand, may provide services that a user may access through a media center application to various images or audio.

The application program center can provide and store various application programs. The application may be a game, an application, or some other application associated with a computer system or other device that may be run on a display device. The application center may obtain these applications from different sources, store them in local storage, and then be operable on the display device 200.

In some embodiments, separate operating systems may be installed on Chu A and N chips, respectively, such that there are two separate but poorly associated subsystems in display apparatus 200. For example, Android and various APPs can be independently installed on the chip a and the chip N, so that each chip can realize a certain function, and the chip a and the chip N cooperatively realize a certain function.

A schematic view of a user interface in a display device 200 according to an exemplary embodiment is illustrated in fig. 7 a. As shown in fig. 7, the user interface includes a plurality of plan display areas, illustratively, a first plan display area 201 and a play screen 202, wherein the play screen includes a layout of one or more different projects. And the user interface also comprises a selector for indicating the selected program, and the position of the selector can be moved by the user input so as to change the selection of different programs.

The plurality of gauge display areas may present display screens of different levels. For example, a first profile display area may present regular frequency chat schedule content and a second profile display area may present application level schedule content (e.g., web page schedule, VOD presentations, application screens, etc.).

In some exemplary embodiments, the different gauge graph display areas are presented with a priority difference, and the gauge graph display areas are displayed with different priorities among the gauge graph display areas with different priorities. If the priority of the system layer is higher than that of the application layer, when the user uses the acquisition selector and switches pictures in the application layer, the picture display of the plan display area of the system layer is not shielded; and when the size and the position of the gauge graph display area of the application layer are changed according to the selection of the user, the size and the position of the gauge graph display area of the system layer are not influenced.

The display frames of the same level can also be presented, at the moment, the selector can switch between the first gauge graph display area and the second gauge graph display area, and when the size and the position of the first gauge graph display area are changed, the size and the position of the second gauge graph display area can be changed along with the change.

In some embodiments, any one of the regions in fig. 7a may display a picture captured by the camera.

"thumbnail" refers to a thumbnail object displayed in each thumbnail display area of the user interface in the display apparatus 200 to represent corresponding content such as an icon, a thumbnail, a video clip, and the like. For example: a program may represent a movie, an image content or a video clip of a television show, an audio content of music, an application, or other user access content history information.

In some embodiments, "hectogram" may display a thumbnail of an image. Such as: when the program is a movie or an electric drama, the program can be displayed as a poster of the movie or the electric drama. If the user is a music, a poster of a music album can be displayed. Such as an icon of the application when the application is currently being executed, or a screenshot of the content that captures the application when the application was executed recently. If the user accesses the history, the history can be displayed as the content screenshot in the latest execution process. "hectogram" can be displayed as a regular frequency clip. Such as: the hectogram is a regular frequency clip dynamic picture of a forecast picture of a power supply or a power supply drama.

In addition, the entry may indicate an interface or a collection of interfaces to which the display apparatus 200 is connected to an external device, or may indicate a name of an external device connected to the display apparatus, or the like. Such as: a signal source input interface set, or an HDMI interface, a USB interface, a PC terminal interface, etc.

The "selector" indicates with a pointer that any item, e.g., a cursor or a focus object, has been selected. The cursor movement on the display device 200 is controlled to select or control a menu according to the user input through the control apparatus 100. The movement of the focus object displayed in the display apparatus 200 can be made to select the control program according to the input of the user through the control apparatus 100, and one or more programs can be selected or controlled. Such as: the user can select and control the hectares by controlling the movement of the focus object between the hectares through the direction key on the control device 100.

Before describing the specific implementation of the embodiments of the present application in detail, an application scenario of the embodiments of the present application is described.

Fig. 7b and 7c together illustrate a possible application scenario of the embodiment of the present application, in which the display device 200 has an image capturing apparatus, which may also be referred to as a camera or an image collector, such as the image collector 341 illustrated in fig. 4. For the sake of brevity, in the embodiments of the present application, the image capturing apparatus is simply referred to as a camera.

In fig. 7b, in the application center, the user moves the selector by operating the control means to fall on a "camera application" that vocalizes the camera. After the camera is uttered, the camera starts to acquire image data within a regular field range, and the image data is provided to an object interface of the camera application to receive callback of the camera application to the acquired image data.

It should be noted that, make the back with the camera, even the camera enters operating condition, close the back with the camera, even the camera withdraws from operating condition.

Fig. 7c is a schematic view of a user interface for rendering a local pre-foraging window after the "camera application" is spoken, and as shown in fig. 7c, after the "camera application" calls back image data, the image data is rendered in the local pre-foraging window of the display screen for presentation, and a user can view the image data collected by the camera on the screen of the display device to achieve the effect of "looking into the mirror".

It should be noted that the camera application can be interpreted as including, but not limited to, the above "camera application", and can also be a social application with a regular frequency chat function, which is not described in detail herein. In addition, such applications may be non-system programs, may be installed for use by being downloaded at an application vendor, or may be transferred via an external storage device.

It should be noted that the picture quality (or image quality) presented by the local lookahead window shown in fig. 7c depends at least on the resolution of the camera of the picture frame, the frame rate, the lighting condition of the environment where the display device is located, the resolution, color gamut, brightness, and other display parameters of the display device, and so on.

For ease of explanation of embodiments of the present application, the present application proposes "dark scene" and "normal scene" concepts. Specifically, according to the ambient brightness of the environment where the display device is located, the usage scenarios of the display device may be divided into two categories, one of which is a normal scenario, that is, a scenario where the light of the environment where the display device is located is sufficient, for example, a room in the daytime, in the normal scenario, the ambient brightness is high enough to be a certain set threshold; the second is a dark scene, that is, a scene where the brightness of the environment where the display device is located is low, for example, a room with dark light at night or without light on, and under the dark scene, the ambient brightness is low chu by a certain set threshold value.

In the above normal scene, after the camera is spoken by the application such as "camera application" on the display device, the camera will acquire image data in a predetermined field range at a predetermined frame rate (for example, 30 frames), and the application acquires the image data through a callback interface provided by the camera, renders the image data to a corresponding local pre-search window on the screen, and presents the image data to the user.

However, in the dark scene, after the camera is spoken by the application on the display device, if the luminance of the environment is low and the camera still collects image data at the preset frame rate in the normal scene, the brightness of the collected image data is low and cannot be clearly displayed. If the camera automatically reduces the frame rate (for example, to 15 frames) to prolong the time for acquiring the image of each frame, although it may be beneficial to collect luminance of light to some extent and improve the image quality, it may reduce the fluency of the regular-frequency image presented by the local pre-searching window.

In addition, for the display device with the light sensation function, in order to protect the user, when the display device detects that the ambient brightness is low through the light sensation device, the backlight brightness of the display device is automatically reduced. That is, when the environment of the display device is dark, the screen brightness of the display device is adaptively darkened.

Therefore, in a dark scene, the quality of the image acquired by the camera is affected due to low ambient brightness, and the display effect of the image on the pre-searching window is further deteriorated due to the automatic reduction of the screen brightness of the display device.

To solve the above problem, in some embodiments, the display device controller (e.g., the first controller and/or the second controller) obtains a first ambient brightness of an environment in which the display device is located through the detector (e.g., the light receiver 342) in response to the power-on, and sets the backlight brightness of the display to the first backlight brightness according to the first ambient brightness; responding to the activation of the image acquisition device, adjusting the backlight brightness of the display to a second backlight brightness according to the first ambient brightness, wherein the second backlight brightness is higher than the first backlight brightness.

In some embodiments, if the display device is turned on in a dark scene, the backlight brightness of the display device can be set according to the lower ambient brightness in the dark scene, and if the image acquisition device is turned in the dark scene, the backlight brightness of the display device can be automatically increased, so that the problem that the display effect of the pre-foraging window image is poor due to low screen brightness can be solved, the display device with higher backlight brightness can be used as a light source to generate an automatic light supplementing effect on the environment where the display device is located, that is, the ambient brightness is improved, the quality of the image acquired by the image acquisition device can be optimized, automatic frame dropping is not needed, the number of frames dropping can be reduced to a certain extent even if the frames dropping is needed, the fluency of the pre-foraging frequency is prevented from being affected, and the user experience is improved.

According to the above embodiments, the present application also provides a backlight brightness adjusting method, and a controller of a display device is configured to perform some or all of the steps of the method. In the following method embodiments, more specific implementations of the above embodiments are specifically described. In some embodiments, the main body of execution of the method includes, but is not limited to, a controller of the display device and modules connected to the controller, such as an image capture device. By the method, under a dark scene, the frame dropping quantity of the camera can be reduced, even the frame dropping is not needed, the quality of the image collected by the camera can be improved, and the problem that the image pre-searching effect is further deteriorated due to the automatic reduction of the screen brightness of the Chu display equipment can be solved.

Fig. 8 is a flowchart illustrating a backlight brightness adjusting method according to an exemplary embodiment of the present application, and as shown in fig. 8, the method may include:

step 801, after the display device is turned on, detecting a first ambient brightness of an environment where the display device is located.

After the display equipment is started, the light sensor of the display equipment is powered on, the ambient brightness data of the environment where the display equipment is located are collected, and the collected ambient brightness data are sent to the controller.

The first ambient brightness is first ambient brightness data collected by the light sensor after the display device is turned on. The first ambient brightness is used to determine an initial backlight brightness of the display screen, i.e., the first backlight brightness described in step 802.

Step 802, determining a first backlight brightness corresponding to the first ambient brightness.

In some exemplary embodiments, the first backlight brightness corresponding to the first ambient brightness is determined according to a first preset relationship between the ambient brightness and the backlight brightness. In this embodiment, the backlight brightness of the display device is adaptively adjusted according to the ambient brightness. The first preset relationship is a relationship between the ambient brightness and the backlight brightness preset in the display device, and is used for determining the backlight brightness of the display according to the current ambient brightness, and further controlling the backlight circuit to output the determined backlight brightness.

In this embodiment, the first preset relationship is specially used for a scene when the camera is not in a working state. Under the condition that the camera is not in the working state, when the ambient brightness is low, the backlight brightness determined according to the first preset relation is low, and when the ambient brightness is high, the backlight brightness determined according to the first preset relation is high.

Note that, the first predetermined relationship:

as a possible implementation, the ambient brightness S and the backlight brightness L are in a curve relationship, or a fixed number relationship, such as a proportional relationship, wherein the ambient brightness S is equal to the S_min，S_max]The backlight luminance L E [ L ∈. [ L ]_min，L_max]，S_minAnd S_maxRespectively detectable by light sensorsMinimum and maximum luminance values, L_minAnd L_maxRespectively, the minimum brightness value and the maximum brightness value that can be displayed by the display.

Fig. 9 is a schematic diagram illustrating a relationship between the ambient brightness S and the backlight brightness L. In FIG. 9,/₁Is a possible first predetermined relationship. It should be noted that the preset first preset relationship of different display devices may be different according to different hardware factors, such as the screen size of the local display.

As another possible implementation manner, the ambient brightness S and the backlight brightness L may have a section correspondence, for example, as shown in table 1. In Table 1, if the detected ambient brightness, S ∈ [ S ]_min，S₂]Then the corresponding backlight brightness L is L₁If the detected ambient brightness S E [ S ]₂，S₃]Then the corresponding backlight brightness L is L₂And so on.

Ambient brightness/S	Backlight luminance/L
		S_min～S₂	L₁
S₂～S₃	L₂
		……	……
S_n～S_max	L_n

Step 803, the backlight brightness of the display device is set to the first backlight brightness.

It should be noted that the process of the display device acquiring the ambient brightness through the light sensor is a real-time and continuous process. And, the display device will judge whether the ambient brightness changes while detecting the ambient brightness.

In addition, after the display device is started, the following steps are executed: and monitoring whether an image acquisition device of the display equipment enters a working state or not. When it is detected that the image capturing device enters the working state, step 804 and step 805 are executed. During specific implementation, the thread of the controller monitors the broadcast information sent by applications such as "camera application" and the like and vocalizes the broadcast information of the camera so as to monitor whether the camera enters a working state or not. Alternatively, the "camera application" sends a notification message to the controller to notify the controller that the camera is in the working state while it is speaking the camera.

In step 804, when the image capturing device of the display apparatus enters the operating state, a second backlight luminance corresponding to the first ambient luminance is determined, where the second backlight luminance is higher than the first backlight luminance.

In some exemplary embodiments, the second backlight brightness corresponding to the first ambient brightness is determined according to a second preset relationship between the ambient brightness and the backlight brightness. In this embodiment, the second predetermined relationship is another relationship between the ambient brightness and the backlight brightness preset in the display device, and the second predetermined relationship is the same as the first predetermined relationship, where the second predetermined relationship also uses a Chu to determine the backlight brightness of the display according to the current ambient brightness, and further controls the backlight circuit to output the determined backlight brightness. Different from the first preset relationship, the second preset relationship is special for the scene when the Chu camera is in the working state. Under the condition of the operating state of the camera, a backlight brightness is determined again according to the current ambient brightness. Moreover, for the same ambient brightness, the backlight brightness determined according to the second preset relationship is high Chu the backlight brightness determined according to the first preset relationship.

In this embodiment, under the condition that the ambient brightness is not changed, the current ambient brightness is still the first ambient brightness, and therefore in step 804, a second backlight brightness corresponding to the first ambient brightness is determined according to a second preset relationship, where the second backlight brightness is higher than the first backlight brightness.

In some exemplary embodiments, the first backlight brightness is a brightness of the display that the display apparatus adjusts according to the first ambient brightness before the user utters the image capturing device. The first environment brightness is used for uttering the display equipment by a user, and the first environment brightness can have certain amplitude change in the time before uttering the image acquisition device, and the first backlight brightness can also correspondingly change according to the change rule.

For example, the user turns on the display device at 4 pm, visually watching the program at 7 pm, during which the camera-related application is not spoken, and the camera is not turned on. During the period 4-7 PM, because of the influence of sunlight or other ambient light, the first ambient brightness is not a constant value, but has a certain variation interval, and at this time, the first backlight brightness also varies with the variation of the first ambient brightness. When a user opens the camera related application at 7 o 'clock and 10 o' clock, utter the camera, the user needs to shoot clearly the environment image, and the controller controls the display to adjust to a second backlight brightness, which is large let in first backlight brightness.

It should be noted that the curve relationship (the fixed number relationship) between the second predetermined relationship and the ambient brightness may also be the interval corresponding relationship between the ambient brightness and the backlight brightness, and the description of the first predetermined relationship may be specifically referred to, and is not repeated herein.

Exemplarily, in FIG. 9,/₂And l₃Two possible second predetermined relationships are respectively. L in FIG. 9₁、l₂And l₃As can be seen from the comparison, for the same ambient brightness, the backlight brightness determined according to the second preset relationship is higher than the backlight brightness determined according to the first preset relationship.

Step 805, adjusting the backlight brightness of the display to the second backlight brightness.

In a specific implementation, step 805 may specifically include the steps shown in fig. 10:

and step 101, calculating an adjusting amplitude according to the backlight brightness before adjustment and the target backlight brightness.

With the embodiment shown in fig. 8, the backlight brightness before adjustment is the first backlight brightness, and the target backlight brightness is the second backlight brightness. The absolute difference between the target backlight brightness and the backlight brightness before adjustment is the adjustment amplitude.

And 102, calculating the adjusting times according to the adjusting amplitude and the preset adjusting step length of the display equipment.

It will be appreciated that in order to protect the backlight circuitry of the display, while taking into account the user experience, the change in the brightness of the display backlight is a gradual process. The adjustment step refers to a backlight value that is adjusted once in the process of adjusting the backlight brightness of the display device by the display device. The larger the adjustment step size, the more significant the backlight variation. If the adjustment step size is too small, it will result in a long adjustment process.

The adjustment step length is a preset parameter of the display device, and can be modified according to the hardware condition and the product requirement of the display device.

And calculating the quotient of the adjusting amplitude and the adjusting step length to obtain the adjusting times. And when the quotient value is calculated to be non-integer, rounding, and taking the obtained integer value as the adjusting times.

And 103, adjusting the backlight brightness of the display to the target backlight brightness according to the adjusting times and the adjusting step length.

Through the method of the present application, when the image capturing device is operating, the second predetermined relationship is selected to determine the backlight brightness of the display, and the backlight brightness determined according to the second predetermined relationship is higher than the backlight brightness determined according to the first predetermined relationship, so that when the image capturing device is operating in a dark scene, on one hand, the backlight brightness of the display can be prevented from being automatically reduced by the display device following the lower ambient brightness in the dark scene, thereby solving the problem of poor display effect of the image in the pre-searched window caused by the low screen brightness, on the other hand, the display with the higher backlight brightness is equivalent to a light source in the dark scene, and the automatic light filling effect can be generated to the environment where the display device is located, that is, the ambient brightness is improved, thereby the quality of the image captured by the image capturing device can be optimized without automatic frame dropping, even if frame dropping is required, the frame dropping quantity can be reduced to a certain extent, so that the influence on the fluency of the pre-foraging gauge frequency is avoided, and the user experience is improved. In further embodiments, the embodiment method shown in fig. 8 further comprises:

step 806, when the image capturing device exits the operating state, adjusting the backlight brightness of the display to the first backlight brightness.

It can be seen from the foregoing embodiment that, if the image capturing device is not in the operating state, the display device sets or adjusts the backlight brightness of the display according to the first preset relationship in order to protect the user's strength, and if the image capturing device is in the operating state, the display device sets or adjusts the backlight brightness of the display according to the second preset relationship in order to improve the quality of the image captured by the image capturing device and ensure the presentation effect of the local pre-search window.

In addition, in order to avoid that the display still presents high backlight brightness after the image acquisition device exits from the working state, and further the regular protection is influenced, in the method, when the image acquisition device exits from the working state, the backlight brightness of the display is adjusted to the first backlight brightness. In the embodiment shown in fig. 8, when the camera enters the working state, the backlight brightness is determined again according to the second preset relationship. Since the camera may enter the working state in the normal scene or the working state in the dark scene, in order to reduce the frequency of adjusting the backlight brightness of the display device, in another embodiment of the present application, the step of re-determining and adjusting the backlight brightness according to the second preset relationship is performed only when the camera enters the working state in the dark scene. Fig. 11 shows a specific flow of this embodiment. As shown in fig. 11, includes:

and step 111, detecting a first environment brightness of the environment where the display device is located after the display device is started.

Step 112, determining a first backlight brightness corresponding to the first ambient brightness according to a first preset relationship between the ambient brightness and the backlight brightness.

And step 113, setting the backlight brightness of the display device to be the first backlight brightness.

Step 114, when the image acquisition device of the display device enters a working state, judging whether the first environmental brightness is low; if so, step 115 is executed, and if so, no action is taken, i.e., the backlight brightness of the display is kept unchanged at the first backlight brightness.

Step 115, determining a second backlight brightness corresponding to the first ambient brightness according to a second preset relationship between the ambient brightness and the backlight brightness, where the second backlight brightness is higher than the first backlight brightness.

Step 116, adjusting the backlight brightness of the display to the second backlight brightness.

In this embodiment, if the ambient brightness is high enough for the preset threshold, it is a normal scene, and if the ambient brightness is lower than the preset threshold, it is a dark scene. When the camera is monitored to enter a working state, whether the current scene is a dark scene is judged firstly, if the current scene is the dark scene, the steps 115 and 116 are executed, namely, the backlight brightness is determined and adjusted again according to the second preset relation, and if the current scene is a normal scene, the operation is not carried out.

In addition, in the scene of the application, if the scene is a dark scene, the camera automatically reduces the frame rate of the acquired image, so that whether the current scene is the dark scene can be determined by judging whether the real frame rate of the acquired image is lower than the preset frame rate when the camera works. Specifically, as an alternative to the above-described step 114, after step 113, there is performed: when an image acquisition device of display equipment enters a working state, whether the frame rate of an image acquired by the image acquisition device is low than a preset frame rate or not is judged; if low, step 115 is executed, if not low, then do not act, i.e., keep the backlight brightness of the display unchanged as the first backlight brightness.

In the embodiment shown in fig. 11, the step of re-determining and adjusting the backlight brightness according to the second preset relationship is only performed when the camera enters the working state in the dark scene, so that the frequency of adjusting the backlight brightness by the display device can be reduced, and the device resources can be saved.

In the application scenario of the present application, ambient brightness may change at any time, and therefore, the method of the present application further provides another embodiment, where when ambient brightness changes, an adjustment policy (a first preset relationship and a second preset relationship) for adjusting backlight brightness is selected in combination with a current state of an image acquisition device, so that, in a dark scene, quality of an image acquired by a camera may be improved without automatically dropping frames or reducing the number of dropped frames of the camera, and a problem that an image pre-search effect is further deteriorated due to automatic reduction of screen brightness of a femto display device may also be solved. Fig. 12 is a flowchart of the method of this embodiment, and as shown in fig. 12, the method of this embodiment includes:

step 121, after the display device is turned on, detecting a first ambient brightness of an environment where the display device is located.

Step 122, determining a first backlight brightness corresponding to the first ambient brightness according to a first preset relationship between the ambient brightness and the backlight brightness.

Step 123, setting the backlight brightness of the display device to the first backlight brightness.

Step 124, when the image acquisition device of the display apparatus enters a working state, determining a second backlight brightness corresponding to the first environment brightness according to a second preset relationship between the environment brightness and the backlight brightness, where the second backlight brightness is higher than the first backlight brightness.

Step 125, adjusting the backlight brightness of the display to the second backlight brightness.

And step 126, when the image acquisition device exits the working state, adjusting the backlight brightness of the display to the first backlight brightness.

The specific implementation of the steps 121-126 can refer to the embodiment shown in fig. 8, and will not be described herein again. Different from the embodiment shown in fig. 8, in this embodiment, after the display device is turned on, the following steps are executed while the steps 121 and 126 are executed:

step 127, monitoring whether the ambient brightness of the environment where the display device is located changes.

Step 128, when it is monitored that the first environmental brightness changes, judging whether the image acquisition device is not in a working state; if yes, step 129 is performed, if no, step 1301 is performed.

And 129, determining a third backlight brightness corresponding to a second ambient brightness according to the first preset relation, wherein the second ambient brightness is the changed ambient brightness.

And step 130, adjusting the backlight brightness of the display to the third backlight brightness.

Step 1301, determining a fourth backlight brightness corresponding to the second ambient brightness according to the second preset relationship, where the fourth backlight brightness is higher than the third backlight brightness.

Step 1302, adjusting the backlight brightness of the display to the fourth backlight brightness.

As can be seen from the embodiment shown in fig. 12, when the ambient brightness changes, if the camera is not in the operating state, then the third backlight brightness corresponding to the second ambient brightness is determined according to the first preset relationship, and if the camera is in the operating state, then the fourth backlight brightness corresponding to the second ambient brightness is determined according to the second preset relationship. Since the fourth backlight brightness is higher than the third backlight brightness, if the scene corresponding to the second ambient brightness is a dark scene and the camera is working, the quality of the image acquired by the camera can be improved without automatically dropping frames or reducing the number of dropped frames of the camera, and the problem that the image pre-searching effect is further deteriorated due to the automatic reduction of the screen brightness of the Chu display device can be solved.

It can be seen from the foregoing embodiment that, if the camera is not in the operating state, then, to protect the user's strength, the display device sets or adjusts the backlight brightness of the display according to the first preset relationship, and if the camera is in the operating state, then, to improve the quality of the image captured by the camera and ensure the presentation effect of the local pre-search window, the display device sets or adjusts the backlight brightness of the display according to the second preset relationship. In addition, if the ambient brightness is detected to change, the backlight brightness of the display can be timely adjusted according to the changed ambient brightness and the current state of the camera.

That is, if the camera exits the operating state and the ambient brightness does not change after it exits the operating state, the display device does not adjust the backlight brightness of the display. If, however, it is in a dark scene, then the backlight brightness of the display at this point will not be enough to protect the user (i.e., the display device still outputs a large backlight value).

In order to avoid this problem, the method of the present application further comprises:

when the image acquisition device exits from the working state, determining a first deficiency backlight brightness corresponding to the detected current environment brightness according to the first preset relation;

adjusting the backlight brightness of the display to the first deficiency backlight brightness.

The above steps may be performed after step 805 in the embodiment shown in fig. 8, or after step 116 in the embodiment shown in fig. 11, or after step 1302 in the embodiment shown in fig. 12.

As can be seen from the foregoing embodiments, an embodiment of the present application provides a method for adjusting backlight brightness of a display device, where the method includes: after the display equipment is started, detecting first environment brightness of the environment where the display equipment is located; determining first backlight brightness corresponding to the first environment brightness according to a first preset relation between the environment brightness and the backlight brightness; setting the backlight brightness of the display device display to the first backlight brightness; when an image acquisition device of the display equipment enters a working state, determining second backlight brightness corresponding to the first environment brightness according to a second preset relation between the environment brightness and the backlight brightness, wherein the second backlight brightness is higher than the first backlight brightness; and adjusting the backlight brightness of the display to the second backlight brightness.

By the method, when the image acquisition device works, the second preset relationship is selected to determine the backlight brightness of the display, and because the backlight brightness determined according to the second preset relationship is higher than the backlight brightness determined according to the first preset relationship, when the image acquisition device works in a dark scene, on one hand, the backlight brightness of the display can be prevented from being automatically reduced by the display equipment along with the lower ambient brightness in the dark scene, so that the problem that the image display effect of the pre-foraging window is poor due to the low screen brightness can be solved, on the other hand, the display with the higher backlight brightness is equivalent to a unique light source in the dark scene, so that the automatic light supplementing effect can be generated on the environment where the display equipment is located, namely, the ambient brightness is improved, the quality of the image acquired by the image acquisition device can be optimized, the automatic frame descending is not needed, even if the frame descending is needed, the frame dropping quantity can be reduced to a certain extent, so that the influence on the fluency of the pre-foraging gauge frequency is avoided, and the user experience is improved. In specific implementation, the present application further provides a computer storage medium, where the computer storage medium may store a program, and the program may include some or all of the steps in the embodiments of the method provided in the present application when executed. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a Random Access Memory (RAM).

Those skilled in the art will clearly understand that the techniques in the embodiments of the present application may be implemented by way of software plus a required general hardware platform. Given this understanding, embodiments of the present application may be embodied in software products, which may be stored in storage media such as ROM/RAM, magnetic disks, optical disks, etc., and which include instructions for causing a computing device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in the embodiments or parts of the embodiments of the present application.

The same and similar parts among the various embodiments in the specification can be seen from the deficiency. In particular, for the apparatus embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to the description in the method embodiment.

The above-described embodiments of the present application do not limit the scope of the present application.

Claims

1. A display device, comprising:

a display on which a user displays a user interface;

the image acquisition device is used for acquiring image pictures;

a controller configured to:

acquiring first environment brightness of the environment where the display equipment is located, and setting the backlight brightness of the display as first backlight brightness according to the first environment brightness;

and responding to an instruction for starting the image acquisition device, and adjusting the backlight brightness of the display to the second backlight brightness according to the first environment brightness, wherein the second backlight brightness is higher than the first backlight brightness.

2. The display device of claim 1, wherein the controller is configured to set the backlight brightness of the display to a first backlight brightness based on the first ambient brightness in accordance with the following steps:

determining a first backlight brightness corresponding to the first ambient brightness;

setting the backlight brightness of the display to the first backlight brightness;

and the controller is configured to adjust the backlight brightness of the display to the second backlight brightness according to the first ambient brightness by:

determining a second backlight brightness corresponding to the first ambient brightness;

and adjusting the backlight brightness of the display to the second backlight brightness.

3. The display device of claim 1, wherein the controller is further configured to, prior to adjusting the backlight brightness of the display to the second backlight brightness:

judging whether the first ambient brightness is lower than a preset threshold value or not;

if the first ambient brightness is lower than the preset threshold value, adjusting the backlight brightness of the display to the second backlight brightness according to the first ambient brightness;

if the first ambient brightness is higher than the preset threshold value, keeping the backlight brightness of the display unchanged as the first backlight brightness.

4. The display device of claim 1, wherein the controller is further configured to, prior to adjusting the backlight brightness of the display to the second backlight brightness:

acquiring a frame rate of an image acquired by the image acquisition device;

judging whether the frame rate of the collected image is lower than a preset frame rate or not;

if the frame rate of the collected image is lower than a preset frame rate, adjusting the backlight brightness of the display to the second backlight brightness according to the first environment brightness;

and if the frame rate of the acquired image is not lower than the preset frame rate, keeping the backlight brightness of the display unchanged as the first backlight brightness.

5. The display device of claim 1, wherein the controller is further configured to:

monitoring whether the ambient brightness of the environment changes;

when the environment brightness is monitored to be changed from the first environment brightness to the second environment brightness, judging whether the image acquisition device is in a working state;

if the image acquisition device is not in a working state, adjusting the backlight brightness of the display to a third backlight brightness according to the second environment brightness;

and if the image acquisition device is in a working state, adjusting the backlight brightness of the display to a fourth backlight brightness according to the second environment brightness, wherein the fourth backlight brightness is higher than the third backlight brightness.

6. The display device of claim 1, wherein the controller is further configured to:

and responding to the turning-off of the image acquisition device, and adjusting the backlight brightness of the display to the fifth backlight brightness according to the current environment brightness.

7. The display device according to any of claims 1-6, wherein the controller adjusts the backlight brightness of the display according to the following steps:

calculating an adjusting amplitude according to the backlight brightness before adjustment and the target backlight brightness;

calculating the adjusting times according to the adjusting amplitude and the adjusting step length preset by the display equipment;

and adjusting the backlight brightness of the display to the target backlight brightness according to the adjusting times and the adjusting step length.

8. A backlight brightness adjusting method is applied to a display device, the display device is provided with an image acquisition device, and the method comprises the following steps:

responding to a starting-up instruction of the display equipment, and acquiring first environment brightness of the environment where the display equipment is located;

and responding to an instruction of a user for starting an image acquisition device, and adjusting the backlight brightness of the display to the second backlight brightness according to the first environment brightness, wherein the second backlight brightness is higher than the first backlight brightness.

9. The backlight brightness adjustment method of claim 8, wherein before adjusting the backlight brightness of the display to the second backlight brightness, the method further comprises:

10. The backlight brightness adjustment method of claim 8, wherein before adjusting the backlight brightness of the display to the second backlight brightness, the method further comprises:

acquiring a frame rate of an image acquired by the image acquisition device;