CN112019782B

CN112019782B - Control method and display device of enhanced audio return channel

Info

Publication number: CN112019782B
Application number: CN202010857344.XA
Authority: CN
Inventors: 王丽娟; 魏强; 孙启凤
Original assignee: Qingdao Hisense Media Network Technology Co Ltd
Current assignee: Qingdao Hisense Media Network Technology Co Ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2023-04-14
Anticipated expiration: 2040-08-24
Also published as: CN112019782A

Abstract

The control method and the display device of the enhanced audio return channel can receive a first control instruction input by a user, and further control a display to display a sound setting interface; the sound setting interface is used for representing an interface comprising an enhanced audio return channel eARC control bar; then, under the condition that the current audio output mode of the display device is an audio return channel ARC mode, setting an eARC control bar on a sound setting interface to be in an optional state; and responding to a second control instruction input by the user, and controlling the switch in the eARC control column to be turned on or off. Therefore, the scheme of the application can display whether the eARC mode is selectable for the user after the audio output mode of the user is detected. In addition, the user can also realize the free switching between the eARC mode and the ARC mode by controlling the switch in the eARC control column, so that the audio output mode is diversified.

Description

Control method and display device of enhanced audio return channel

Technical Field

The application relates to the technical field of smart home, in particular to a control method and display equipment for an enhanced audio return channel.

Background

In order to simplify the connection wires between the smart display device and the surround amplifier or other sound devices, the smart display device and the sound devices are currently connected in an ARC (Audio Return Channel) mode. The ARC mode may utilize an HDMI (High Definition Multimedia Interface) line to transmit audio signals to the smart display device, and if necessary, the HDMI line may also transmit the sound effects of the smart display device back to the audio device.

However, the data bandwidth for ARC mode based transmission is very limited, with a level of about 1Mb/s. The limited bandwidth only allows the ARC mode to provide stereo audio and compressed 5.1 surround sound. Therefore, audio transmitted using ARC mode has certain limitations. Therefore, an enarc (Enhanced Audio Return Channel) comes along, and the enarc mode aims to provide the best Audio resolution through the smart display device. The audio transmission bandwidths of the ARC mode and the eARC mode are 1-3Mb/s and 37Mb/s respectively, so that the eARC mode has a faster data transmission mode and a higher bandwidth, and both audio and video signals can be automatically synchronized.

For the intelligent display device connected with the external audio equipment, the audio can be output in an ARC mode, a non-ARC mode and an eARC mode. However, most current intelligent display devices do not provide a more intuitive display interface for users, so that the users can select a specific audio output mode conveniently.

Disclosure of Invention

The application provides a control method and display equipment for an enhanced audio return channel, which can provide a more intuitive display interface for a user so as to facilitate the user to control the mode of outputting audio by the display equipment.

In a first aspect, the present application provides a display device comprising:

a display;

a controller to perform:

responding to a first control instruction, and controlling a display to display a sound setting interface; the first control instruction is an instruction which is input by a user and used for selecting a sound setting interface; the sound setting interface is used for representing an interface comprising an enhanced audio return channel eARC control bar;

setting an enhanced audio return channel eARC control bar on the sound setting interface to be in an optional state under the condition that the current audio output mode of the display equipment is an audio return channel ARC mode; the selectable status represents that the display device can currently use an enhanced audio return channel eARC mode;

responding to a second control instruction, and controlling the switch in the enhanced audio return channel eARC control bar to be turned on or turned off; and the second control instruction is an instruction which is input by a user after the user watches the sound setting interface and is used for controlling the enhanced audio return channel eARC to be opened or closed.

In some embodiments, the controller is further configured to perform: and in the case that the current audio output mode of the display device is the audio return channel ARC mode, displaying a schematic item of the audio return channel ARC on the sound setting interface.

In some embodiments, the controller is further configured to perform: and after the switch in the enhanced audio return channel eARC control column is turned on, controlling the display equipment to output audio to the external sound equipment in an enhanced audio return channel eARC mode under the condition that a connecting line between the display equipment and the external sound equipment is a high-definition multimedia interface HDMI2.1 connecting line.

In some embodiments, the controller is further configured to perform: and under the condition of responding to a second control instruction and controlling the switch in an enhanced audio return channel eARC control bar on the sound setting interface to be closed, controlling the display equipment to output audio to the external sound equipment in an audio return channel ARC mode.

In some embodiments, the controller is further configured to perform: setting an enhanced audio return channel eARC control bar on the sound setting interface to be in an unselected state under the condition that the current audio output mode of the display device is a non-ARC mode; the non-selectable state indicates that the enhanced audio return channel, enarc, mode is not currently available to the display device.

In some embodiments, the controller is further configured to perform: in case that the current audio output mode of the display device is the non-ARC mode, a schematic item of the non-ARC device is displayed on the sound setup interface.

In some embodiments, the controller is further configured to perform: in case that the current audio output mode of the display device is the non-ARC mode, controlling the display device to output audio using the non-ARC device.

In a second aspect, the present application further provides a method for controlling an enhanced audio backhaul channel, including:

setting an enhanced audio return channel eARC control bar on the sound setting interface to be in an optional state under the condition that the current audio output mode of the display device is an audio return channel ARC mode; the selectable status represents that the display device can currently use an enhanced audio return channel eARC mode;

responding to a second control instruction, and controlling the switch in an enhanced audio return channel eARC control bar on the sound setting interface to be turned on or turned off; and the second control instruction is an instruction which is input by a user after the user watches the sound setting interface and is used for controlling the enhanced audio return channel eARC to be opened or closed.

In some embodiments, the step of controlling, in response to the second control instruction, the switch in the enhanced audio return channel arc control bar on the sound setting interface to be turned on or off further includes: and after the switch in the enhanced audio return channel eARC control column is turned on, controlling the display equipment to output audio to the external sound equipment in an enhanced audio return channel eARC mode under the condition that a connecting line between the display equipment and the external sound equipment is a high-definition multimedia interface HDMI2.1 connecting line.

In some embodiments, the step of controlling, in response to the second control instruction, on or off of a switch in an enhanced audio return channel etarc control bar on the sound setting interface further includes: and under the condition that a switch in an enhanced audio return channel eARC control bar on the sound setting interface is controlled to be closed in response to a second control instruction, controlling the display equipment to output audio to the external sound equipment in an audio return channel ARC mode.

In some embodiments, after the step of controlling the display to display the sound setting interface in response to the first control instruction, the method further includes: setting an enhanced audio return channel eARC control bar on the sound setting interface to be in an unselected state under the condition that the current audio output mode of the display device is a non-ARC mode; the non-selectable state indicates that the display device is not currently available for the enhanced audio return channel, eARC, mode.

As can be seen from the above, the control method and the display device for the enhanced audio backhaul channel in the technical solution of the present application can receive a first control instruction input by a user, and further control a display to display a sound setting interface; the sound setting interface is used for representing an interface comprising an eARC control bar; then, in the case that the current audio output mode of the display device is the ARC mode, setting an ARC control bar on the sound setting interface to an optional state; and responding to a second control instruction input by the user, and controlling the switch in the eARC control column to be turned on or off. Therefore, the scheme of the application can display whether the eARC mode is selectable for the user after the audio output mode of the user is detected. In addition, the user can also realize the free switching between the eARC mode and the ARC mode by controlling the switch in the eARC control bar, so that the audio output mode is diversified.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram illustrating an operational scenario between a display device and a control apparatus according to some embodiments;

a block diagram of a hardware configuration of a display device 200 according to some embodiments is illustrated in fig. 2;

a block diagram of the hardware configuration of the control device 100 according to some embodiments is illustrated in fig. 3;

a schematic diagram of the software configuration in the display device 200 according to some embodiments is illustrated in fig. 4;

FIG. 5 illustrates an icon control interface display diagram of an application in the display device 200, according to some embodiments;

fig. 6 is a schematic diagram illustrating a user controlling the display device 200 through a remote controller 601 according to an embodiment of the present application;

fig. 7 is a schematic diagram illustrating a user controlling the display device 200 through voice according to an embodiment of the present application;

FIG. 8 is a schematic illustration of a display of a sound setting interface according to an embodiment of the present application;

FIG. 9 is a schematic illustration of a second sound setting interface shown in an embodiment of the present application;

FIG. 10 is a schematic diagram illustrating a third example of a sound setup interface in accordance with an embodiment of the present application;

fig. 11 is a flowchart illustrating a control method for an enhanced audio return channel according to an embodiment of the present application.

Detailed Description

To make the objects, embodiments and advantages of the present application clearer, the following description of exemplary embodiments of the present application will clearly and completely describe the exemplary embodiments of the present application with reference to the accompanying drawings in the exemplary embodiments of the present application, and it is to be understood that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments described herein without inventive step, are intended to be within the scope of the claims appended hereto. In addition, while the disclosure herein has been presented in terms of exemplary embodiment or embodiments, it should be appreciated that individual aspects of the disclosure can be utilized in a variety of forms and embodiments.

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

The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and are not necessarily intended to limit the order or sequence of any particular one, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

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

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

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

The term "gesture" as used in this application refers to a user's behavior through a change in hand shape or an action such as hand motion to convey a desired idea, action, purpose, or result.

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus according to an embodiment. As shown in fig. 1, the user may operate the display device 200 through the mobile terminal 300 and the control apparatus 100.

In some embodiments, the control device 100 may be a remote controller, and the communication between the remote controller and the display device includes an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, etc., and the display device 200 is controlled by wireless or other wired methods. The user may input a user command through a key on a remote controller, voice input, 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 moving keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller, to implement the function of controlling the display device 200.

In some embodiments, mobile terminals, tablets, computers, laptops, and other smart devices may also be used to control the display device 200. For example, the display device 200 is controlled using an application program running on the smart device. The application, through configuration, may provide the user with various controls in an intuitive User Interface (UI) on a screen associated with the smart device.

In some embodiments, the mobile terminal 300 may install a software application with the display device 200 to implement connection communication through a network communication protocol for the purpose of one-to-one control operation and data communication. Such as: the mobile terminal 300 and the display device 200 can be used for establishing a control instruction protocol, synchronizing a remote control keyboard to the mobile terminal 300 and controlling the function of the display device 200 by controlling the user interface on the mobile terminal 300. The audio/video content displayed on the mobile terminal 300 may also be transmitted to the display device 200, so as to implement the synchronous display function.

As also shown in fig. 1, the display apparatus 200 also performs data communication with the server 400 through various communication means. The display device 200 may be allowed to be communicatively connected through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display apparatus 200. Illustratively, the display device 200 receives software program updates, or accesses a remotely stored digital media library, by sending and receiving information, as well as Electronic Program Guide (EPG) interactions. The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers. Other web service contents such as video on demand and advertisement services are provided through the server 400.

The display device 200 may be a liquid crystal display, an OLED display, or a projection display device. The particular display device type, size, resolution, etc. are not limiting, and those skilled in the art will appreciate that the display device 200 may be modified in performance and configuration as desired.

The display apparatus 200 may additionally provide an intelligent network tv function of a computer support function including, but not limited to, a network tv, an intelligent tv, an Internet Protocol Tv (IPTV), and the like, in addition to the broadcast receiving tv function.

A hardware configuration block diagram of a display device 200 according to an exemplary embodiment is exemplarily shown in fig. 2.

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

In some embodiments, a display 275 receives image signals originating from the first processor output and displays video content and images and components of the menu manipulation interface.

In some embodiments, the display 275, includes a display screen assembly for presenting a picture, and a driving assembly that drives the display of an image.

In some embodiments, the video content is displayed from broadcast television content, or alternatively, from various broadcast signals that may be received via wired or wireless communication protocols. Alternatively, various image contents received from a network communication protocol and transmitted from a network server side can be displayed.

In some embodiments, the display 275 is used to present a user-manipulated UI interface generated in the display device 200 and used to control the display device 200.

In some embodiments, a driver assembly for driving the display is also included, depending on the type of display 275.

In some embodiments, display 275 is a projection display and may also include a projection device and a projection screen.

In some embodiments, communicator 220 is a component for communicating with external devices or external servers according to various communication protocol types. For example: the communicator 220 may include at least one of a Wifi module 221, a bluetooth module 222, a wired ethernet module 223, and other network communication protocol modules or near field communication protocol modules, and an infrared receiver.

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

In some embodiments, the user interface 265 may be configured to receive infrared control signals from a control device 100 (e.g., an infrared remote control, etc.).

In some embodiments, the detector 230 is a signal used by the display device 200 to collect an external environment or interact with the outside.

In some embodiments, the detector 230 includes a light receiver, a sensor for collecting the intensity of ambient light, and parameters such as parameter changes can be adaptively displayed by collecting the ambient light.

In some embodiments, the detector 230 may further include an image collector 232, such as a camera, a video camera, etc., which may be used to collect external environment scenes, collect attributes of the user or gestures interacted with the user, adaptively change display parameters, and also recognize the user gestures, so as to implement a function of interaction with the user.

In some embodiments, the detector 230 may also include a temperature sensor or the like, such as by sensing ambient temperature.

In some embodiments, the display apparatus 200 may adaptively adjust a display color temperature of an image. For example, the display apparatus 200 may be adjusted to display a cool tone when the temperature is in a high environment, or the display apparatus 200 may be adjusted to display a warm tone when the temperature is in a low environment.

In some embodiments, the detector 230 may further include a sound collector 231 or the like, such as a microphone, which may be used to receive the user's voice. Illustratively, a voice signal including a control instruction of the user to control the display device 200, or to collect an ambient sound for recognizing an ambient scene type, so that the display device 200 can adaptively adapt to an ambient noise.

In some embodiments, as shown in fig. 2, the input/output interface 255 is configured to allow data transfer between the controller 250 and external other devices or other controllers 250. Such as receiving video signal data and audio signal data of an external device, or command instruction data, etc.

In some embodiments, the external device interface 240 may include, but is not limited to, the following: the interface can be any one or more of a high-definition multimedia interface (HDMI), an analog or data high-definition component input interface, a composite video input interface, a USB input interface, an RGB port, and the like. The plurality of interfaces may form a composite input/output interface.

In some embodiments, as shown in fig. 2, the tuning demodulator 210 is configured to receive a broadcast television signal through a wired or wireless receiving manner, perform modulation and demodulation processing such as amplification, mixing, resonance, and the like, and demodulate an audio and video signal from a plurality of wireless or wired broadcast television signals, where the audio and video signal may include a television audio and video signal carried in a television channel frequency selected by a user and an EPG data signal.

In some embodiments, the frequency points demodulated by the tuner demodulator 210 are controlled by the controller 250, and the controller 250 can send out a control signal according to the user selection so that the modem responds to the television signal frequency selected by the user and modulates and demodulates the television signal carried by the frequency.

In some embodiments, the broadcast television signal may be classified into a terrestrial broadcast signal, a cable broadcast signal, a satellite broadcast signal, an internet broadcast signal, or the like according to the broadcasting system of the television signal. Or may be classified into a digital modulation signal, an analog modulation signal, and the like according to a modulation type. Or the signals are classified into digital signals, analog signals and the like according to the types of the signals.

In some embodiments, the controller 250 and the modem 210 may be located in different separate devices, that is, the modem 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box. Therefore, the set top box outputs the television audio and video signals modulated and demodulated by the received broadcast television signals to the main body equipment, and the main body equipment receives the audio and video signals through the first input/output interface.

In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory. The controller 250 may control the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 275, the controller 250 may perform an operation related to the object selected by the user command.

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

As shown in fig. 2, the controller 250 includes at least one of a Random Access Memory 251 (RAM), a Read-Only Memory 252 (ROM), a Graphics Processing Unit 253 (GPU), a Central Processing Unit 254 (CPU), an input/output interface 255, and a communication Bus 256 (Bus). Wherein a communication bus connects the various components.

In some embodiments, RAM 251 is used to store temporary data for the operating system or other programs that are running

In some embodiments, ROM 252 is used to store instructions for various system boots.

In some embodiments, the ROM 252 is used to store a Basic Input Output System (BIOS). The system is used for completing power-on self-test of the system, initialization of each functional module in the system, a driver of basic input/output of the system and booting an operating system.

In some embodiments, when the power-on signal is received, the display device 200 starts to power up, the CPU executes the system boot instructions in the ROM 252, and copies the temporary data of the operating system stored in the memory into the RAM 251 so as to start or run the operating system. After the start of the operating system is completed, the CPU copies the temporary data of the various application programs in the memory to the RAM 251, and then, the various application programs are started or run.

In some embodiments, processor 254 is used to execute operating system and application program instructions stored in memory. And executing various application programs, data and contents according to various interactive instructions received from the outside so as to finally display and play various audio and video contents.

In some demonstrative embodiments, processor 254 may include a plurality of processors. The plurality of processors may include a main processor and one or more sub-processors. A main processor for performing some operations of the display apparatus 200 in a pre-power-up mode and/or operations of displaying a screen in a normal mode. One or more sub-processors for one operation in a standby mode or the like.

In some embodiments, the graphics processor 253 is used to generate various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And the system comprises a renderer for rendering various objects obtained based on the arithmetic unit, wherein the rendered objects are used for being displayed on a display.

In some embodiments, video processor 270 is configured to receive an external video signal, and perform video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, image synthesis, etc., according to a standard codec protocol of the input signal, so as to obtain a signal that can be displayed or played on directly displayable device 200.

In some embodiments, video processor 270 includes a demultiplexing module, a video decoding module, an image synthesis module, a frame rate conversion module, a display formatting module, and the like.

The demultiplexing module is used for demultiplexing the input audio and video data stream, and if the input MPEG-2 is input, the demultiplexing module demultiplexes the input audio and video data stream into a video signal, an audio signal and the like.

And the video decoding module is used for processing the demultiplexed video signal, including decoding, scaling and the like.

And the image synthesis module, such as an image synthesizer, is used for performing superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphics generator so as to generate an image signal for display.

The frame rate conversion module is configured to convert an input video frame rate, such as a 60Hz frame rate into a 120Hz frame rate or a 240Hz frame rate, and the normal format is implemented in, for example, an interpolation frame mode.

The display format module is used for converting the received video output signal after the frame rate conversion, and changing the signal to conform to the signal of the display format, such as outputting an RGB data signal.

In some embodiments, the graphics processor 253 and the video processor may be integrated or separately configured, and when the graphics processor and the video processor are integrated, the graphics processor and the video processor may perform processing of graphics signals output to a display, and when the graphics processor and the video processor are separately configured, the graphics processor and the video processor may perform different functions, for example, a GPU + FRC (Frame Rate Conversion) architecture.

In some embodiments, the audio processor 280 is configured to receive an external audio signal, decompress and decode the audio signal according to a standard codec protocol of the input signal, and perform noise reduction, digital-to-analog conversion, and amplification processes to obtain a sound signal that can be played in a speaker.

In some embodiments, video processor 270 may comprise one or more chips. The audio processor may also include one or more chips.

In some embodiments, the video processor 270 and the audio processor 280 may be separate chips or may be integrated together with the controller in one or more chips.

In some embodiments, the audio output, under the control of controller 250, receives sound signals output by audio processor 280, such as: the speaker 286, and an external sound output terminal of a generating device that can output to an external device, in addition to the speaker carried by the display device 200 itself, such as: external sound interface or earphone interface, etc., and may also include a near field communication module in the communication interface, for example: and the Bluetooth module is used for outputting sound of the Bluetooth loudspeaker.

The power supply 290 supplies power to the display device 200 from the power input from the external power source under the control of the controller 250. The power supply 290 may include a built-in power supply circuit installed inside the display apparatus 200, or may be a power supply interface installed outside the display apparatus 200 to provide an external power supply in the display apparatus 200.

A user interface 265 for receiving an input signal of a user and then transmitting the received user input signal to the controller 250. The user input signal may be a remote controller signal received through an infrared receiver, and various user control signals may be received through the network communication module.

In some embodiments, the user inputs a user command through the control apparatus 100 or the mobile terminal 300, the user input interface responds to the user input through the controller 250 according to the user input, and the display device 200 responds to the user input.

In some embodiments, a user may enter user commands on a Graphical User Interface (GUI) displayed on the display 275, and the user input interface receives the user input commands through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.

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

The memory 260 includes a memory storing various software modules for driving the display device 200. Such as: various software modules stored in the first memory, including: at least one of a basic module, a detection module, a communication module, a display control module, a browser module, and various service modules.

The base module is a bottom layer software module for signal communication between each hardware in the display device 200 and for sending processing and control signals to the upper layer module. The detection module is used for collecting various information from various sensors or user input interfaces, and the management module is used for performing digital-to-analog conversion and analysis management.

For example, the voice recognition module comprises a voice analysis module and a voice instruction database module. The display control module is used for controlling the display to display the image content, and can be used for playing the multimedia image content, UI interface and other information. And the communication module is used for carrying out control and data communication with external equipment. And the browser module is used for executing a module for data communication between the browsing servers. And the service module is used for providing various services and modules including various application programs. Meanwhile, the memory 260 may store a visual effect map for receiving external data and user data, images of various items in various user interfaces, and a focus object, etc.

Fig. 3 exemplarily shows a block diagram of the configuration of the control apparatus 100 according to an exemplary embodiment. As shown in fig. 3, the control device 100 includes a controller 110, a communication interface 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 may receive an input operation instruction of a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an interaction intermediary between the user and the display device 200. 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, a mobile terminal 300 or other intelligent electronic device may function similar to the control apparatus 100 after an application for manipulating the display device 200 is installed. Such as: the user may implement the function of controlling the physical keys of the apparatus 100 by installing an application, various function keys or virtual buttons of a graphical user interface available on the mobile terminal 300 or other intelligent electronic device.

The controller 110 includes a processor 112 and RAM 113 and ROM 114. The controller is used for controlling the operation of the control device 100, as well as the communication cooperation among the internal components and the external and internal data processing functions.

The communication interface 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 communication interface 130 may include at least one of a WiFi chip 131, a bluetooth module 132, an NFC module 133, and other near field communication modules.

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 other input interfaces. Such as: the user can realize a user instruction input function through actions such as voice, touch, gesture, pressing, and the like, and the input interface converts the received analog signal into a digital signal and converts the digital signal into a corresponding instruction signal, and sends the instruction signal 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, the interface 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 communication interface 130 and an input-output interface 140. The control device 100 is configured with a communication interface 130, such as: the WiFi, bluetooth, NFC, etc. modules may transmit the user input command to the display device 200 through the WiFi protocol, or the bluetooth protocol, or the NFC protocol code.

A memory 190 for storing various operation programs, data and applications for driving and controlling the control apparatus 200 under the control of the controller. The memory 190 may store various control signal commands input by a user.

And a power supply 180 for providing operation power support for the elements of the control device 100 under the control of the controller. A battery and associated control circuitry.

In some embodiments, the system may include a Kernel (Kernel), a command parser (shell), a file system, and an application. The kernel, shell, and file system together form the basic operating system structure that allows users to manage files, run programs, and use the system. After power-on, the kernel starts, activates kernel space, abstracts hardware, initializes hardware parameters, etc., runs and maintains virtual memory, scheduler, signals and inter-process communication (IPC). And after the kernel is started, loading the Shell and the user application program. The application program is compiled into machine code after being started, and a process is formed.

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

In some embodiments, at least one application program runs in the application program layer, and the application programs can be Window (Window) programs carried by an operating system, system setting programs, clock programs, camera applications and the like; or may be an application developed by a third party developer such as a hi program, a karaoke program, a magic mirror program, or the like. In specific implementation, the application packages in the application layer are not limited to the above examples, and may actually include other application packages, which is not limited in this embodiment of the present application.

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

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

In some embodiments, the activity manager is to: managing the life cycle of each application program and the general navigation backspacing function, such as controlling the exit of the application program (including switching the user interface currently displayed in the display window to the system desktop), opening, backing (including switching the user interface currently displayed in the display window to the previous user interface of the user interface currently displayed), and the like.

In some embodiments, the window manager is configured to manage all window processes, such as obtaining a display size, determining whether a status bar is available, locking a screen, intercepting a screen, controlling a display change (e.g., zooming out, dithering, distorting, etc.) and the like.

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

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

In some embodiments, the kernel layer further comprises a power driver module for power management.

In some embodiments, software programs and/or modules corresponding to the software architecture of fig. 4 are stored in the first memory or the second memory shown in fig. 2 or 3.

In some embodiments, taking the magic mirror application (photographing application) as an example, when the remote control receiving device receives a remote control input operation, a corresponding hardware interrupt is sent to the kernel layer. The kernel layer processes the input operation into an original input event (including information such as a value of the input operation, a timestamp of the input operation, etc.). The raw input events are stored at the kernel layer. The application program framework layer obtains an original input event from the kernel layer, a control corresponding to the input event is identified according to the current position of a focus, the input operation is a confirmation operation, the control corresponding to the confirmation operation is a control of a magic mirror application icon, the magic mirror application calls an interface of the application framework layer, the magic mirror application is started, and then the kernel layer is called to start a camera drive, so that a static image or a video is captured through the camera.

In some embodiments, for a display device with a touch function, taking a split screen operation as an example, the display device receives an input operation (such as a split screen operation) that a user acts on a display screen, and the kernel layer may generate a corresponding input event according to the input operation and report the event to the application framework layer. The window mode (such as multi-window mode) corresponding to the input operation, the position and size of the window and the like are set by an activity manager of the application framework layer. And the window management of the application program framework layer draws a window according to the setting of the activity manager, then sends the drawn window data to the display driver of the kernel layer, and the display driver displays the corresponding application interface in different display areas of the display screen.

In some embodiments, as shown in fig. 5, the application layer containing at least one application may display a corresponding icon control in the display, such as: the system comprises a live television application icon control, a video on demand application icon control, a media center application icon control, an application center icon control, a game application icon control and the like.

In some embodiments, the live television application may provide live television from different sources. For example, a live television application may provide television signals using input from cable television, radio broadcasts, satellite services, or other types of live television services. And, the live television application may display video of the live television signal on the display device 200.

In some embodiments, a video-on-demand application may provide video from different storage sources. Unlike live television applications, video on demand provides video displays from some storage source. For example, the video on demand may come from a server side of cloud storage, from a local hard disk storage containing stored video programs.

In some embodiments, the media center application may provide various applications for multimedia content playback. For example, a media center, which may be other than live television or video on demand, may provide services that a user may access to various images or audio through a media center application.

In some embodiments, an application center may provide storage for various applications. 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 the smart television. The application center may obtain these applications from different sources, store them in local storage, and then be executable on the display device 200.

Most intelligent display equipment can be connected with some external devices, such as sound equipment and the like. But the connection between the intelligent display device and the sound equipment needs a plurality of connecting wires to be realized. In order to simplify the connection wires between the smart display device and the surround amplifier or other sound devices, the smart display device and the sound devices are currently connected in an ARC (Audio Return Channel) mode. The ARC mode may utilize an HDMI (High Definition Multimedia Interface) line to transmit an audio signal to the smart display device, and if necessary, the HDMI line may also transmit a sound effect of the smart display device back to the sound device.

However, the data bandwidth for ARC mode based transmission is very limited, with a level of about 1Mb/s. The limited bandwidth only allows the ARC to provide stereo audio and compress 5.1 surround sound. Therefore, the audio transmitted using the ARC mode has a certain limitation. Therefore, an enarc (Enhanced Audio Return Channel) comes along, and the enarc mode aims to provide the best Audio resolution through the smart display device. The audio transmission bandwidths of the ARC mode and the eARC mode are 1-3Mb/s and 37Mb/s respectively, so that the eARC mode has a faster data transmission mode and a higher bandwidth, and both audio and video signals can be automatically synchronized.

For the intelligent display device connected with the external audio equipment, the audio can be output in an ARC mode, a non-ARC mode and an eARC mode. However, most of the current intelligent display devices cannot provide a more intuitive display interface for the user, so that the user can conveniently select a specific audio output mode.

Based on the above problems, embodiments of the present application provide a control method and a display device for an enhanced audio backhaul channel, which can display whether an eARC mode is selectable for a user after detecting an audio output mode of the user. In addition, the user can also realize the free switching between the eARC mode and the ARC mode by controlling the switch in the eARC control bar, so that the audio output mode is diversified.

The display device 200 provided in the embodiment of the present application is an intelligent display device that can be connected to an external audio device, such as an intelligent television. The display 275 in the display device 200 may be used to display a function page or an operation interface, etc.

Fig. 6 is a schematic diagram illustrating a user controlling the display device 200 through a remote controller 601 according to an embodiment of the present application. As shown in fig. 6, the user may select a desired content to be viewed by pressing a direction key of the remote controller 601 according to the content currently displayed by the display apparatus 200, thereby completing the control instruction input, or the user may input a voice control instruction to the remote controller 601 by voice, for example, inputting a voice content of "i select sound setting function", a voice content of "start sound setting", or the like. The remote controller 601 may transmit a control command input by the user to the display apparatus 200, and the controller 250 on the display apparatus 200 may complete the display of the corresponding content according to the control command.

Alternatively, if the display device 200 itself includes a voice module, the remote controller 601 may be omitted, and the voice module directly receives a voice control command sent by the user and sends the voice control command to the controller 250, so that the controller 250 controls the display 275 to complete the operation of selecting the audio output mode. Fig. 7 is a schematic diagram illustrating a display device 200 controlled by a user through voice according to an embodiment of the present application.

Fig. 8 is a display diagram of a sound setting interface according to an embodiment of the present application. As shown in fig. 8, the sound setting interface includes a plurality of functions and control fields, for example, a system sound control field, a sound mode control field, an audio output control field, a tv speaker control field, etc., and if the display device 200 is connected to an external audio device through an HDMI cable, it can support both the ARC mode and the ARC function, and in this case, under the audio output control field shown in fig. 8, an enhanced audio return channel ARC control field in which an ARC switch is provided may be further included. In the case where the ecarc mode of the display device 200 is available, the ecarc control bar is selectable, and the ecarc switch may be selectively turned on or off by the user.

Generally, three audio output modes can be displayed on the display device 200, which are an ARC mode, a speaker mode of the display device, and a bluetooth mode. In the embodiment of the present application, the speaker mode and the bluetooth mode may be collectively referred to as a non-ARC mode; the ARC mode is that the display device 200 and the external audio device are connected through the HDMI cable to output the audio of the display device 200, whereas the non-ARC mode is that the display device 200 does not need to output the audio through the HDMI cable, and the non-ARC device at this time may be a speaker or a bluetooth speaker of the display device 200.

In addition, the display device 200 also has some audio output modes that cannot be displayed on the interface, for example, light output (the display device outputs audio through light connection with an external audio device), earphone output (the display device outputs audio through an earphone after connecting with an earphone), and the like. In the embodiment of the present application, the ARC mode, the speaker mode and the bluetooth mode that can be displayed are mainly described, but the existence of other audio output modes is not excluded.

The HDMI cable may be of various types, for example, the HDMI1.4 connection cable may support the display device 200 and the external audio device to output audio in the ARC mode, and the HDMI2.1 connection cable may support the display device 200 and the external audio device to output audio in the ARC mode. When the display apparatus 200 outputs audio using the self-contained speaker or the bluetooth apparatus, the display apparatus 200 cannot use the ARC mode or the ARC mode. When the display device 200 uses an external audio device through the HDMI2.1 connection line, the display device 200 can further use the ARC mode on the basis that the ARC mode can be used.

The controller 250 of the display apparatus 200 needs to first control the display 275 to display a sound setting interface in response to a first control instruction. The first control instruction is an instruction which is input by a user and used for selecting a sound setting interface; the sound setup interface is used to represent an interface including an enarc control bar, as shown in fig. 8.

The controller 250 may also need to detect what audio output mode the display device 200 is currently in, such as speaker mode, bluetooth mode, or ARC mode, at the same time as or before the display 275 displays the sound setting interface. And displays the specific mode condition in the audio output control bar to form a schematic item to prompt the user to display the current audio output mode of the device 200. For example, as shown in fig. 8, in the case that the current audio output mode of the display apparatus 200 is the audio return channel ARC mode, a schematic item of ARC is displayed within the audio output control bar; or, as shown in fig. 9, in a case that the current audio output mode of the display device 200 is a speaker mode, a schematic item of a speaker is displayed within the audio output control bar, where fig. 9 is a display schematic diagram of a second sound setting interface shown in the embodiment of the present application; still alternatively, as shown in fig. 10, in a case that the current audio output mode of the display device 200 is a bluetooth mode, an exemplary item of bluetooth is displayed in the audio output control bar, where fig. 10 is a display exemplary diagram of a third sound setting interface shown in the embodiment of the present application.

The display apparatus 200 outputs audio using different apparatuses in different audio output modes. With respect to the display device 200 and the audio device externally connected thereto, which can support the ARC mode, it is possible to further support the ARC mode only in the case where the display device 200 supports the ARC mode. Further, the controller 250 sets an ARC control bar on the sound setup interface to an optional state in case the current audio output mode of the display apparatus 200 is the ARC mode; the selectable status indicates that the display device 200 may currently use the enarc mode, i.e. the user may select the control bar using the remote 601 or by means of voice control.

And the controller 250 sets the enarc control bar on the sound setting interface to an unselected state in case that the current audio output mode of the display apparatus 200 is the speaker mode or the bluetooth mode; the non-selectable state indicates that the display device 200 is not currently available in the arc mode, i.e., the user cannot select the control bar using a tool such as the remote 601 or by voice control. In addition, another representation of the unselected state on the sound setting interface may be represented as setting the eARC control bar and the eARC switch to gray; while another representation of the selectable status on the sound setting interface may be represented as having the color of the background of the arc control bar the same as the other control bars.

Generally, when the arc control bar is in the selectable state, the arc switch defaults to the off state, if the user wants to turn on the arc switch, the user needs to send a second control instruction to the controller 250 by operating the remote controller 601 to press a confirmation button or the like or by means of voice control, and then the controller 250 controls the on of the switch in the arc control bar in response to the second control instruction; alternatively, if the current arc switch is in the on state, the user needs to send a second control instruction to the controller 250 by operating the remote controller 601 to press the ok button again or the like or by means of voice control, and then the controller 250 controls the off state of the switch in the arc control column in response to the second control instruction.

After turning on the arc switch according to a control instruction of the user, when the display device 200 starts playing audio or video, the controller 250 controls the display device 200 to output audio to an external audio device in the arc mode. However, if the audio is output in the eARC mode, the display device 200 is connected to the external audio device through the HDMI2.1 connection line, otherwise, even if the user turns on the eARC switch, the display device 200 cannot output the audio in the eARC mode. Therefore, when the arc switch is turned on, the controller 250 further detects whether the connection line between the display device 200 and the external audio device is an HDMI2.1 connection line; if yes, the display device 200 can be controlled to output audio to the external audio device in the enarc mode; if not, the display apparatus 200 still outputs audio to the external audio device in the ARC mode.

After the ARC switch is turned off according to the control command of the user, since the display device 200 is further connected to the external audio device, it indicates that the ARC mode is still available for the display device 200, and when the display device 200 starts playing audio or video, the controller 250 continuously controls the display device 200 to output audio to the external audio device in the ARC mode.

When the current audio output mode of the display device 200 is the non-ARC mode, such as the speaker mode or the bluetooth mode, it means that the display device 200 can only play audio through its own speaker or an external bluetooth device, and when the display device 200 starts to play audio or video, the controller 250 needs to control the display device 200 to output audio through its own speaker or external bluetooth device.

In some embodiments, in the case where the display apparatus 200 supports the ARC mode, the user may freely switch not only the ARC mode and the ARC mode on the display apparatus 200 but also the non-ARC mode and the ARC mode as needed. Specifically, the user may issue a control instruction to select the audio output control bar, and then the controller 250 controls the display 275 to display an audio output selection interface, and respectively displays a bluetooth option, a speaker option, an ARC option, and the like on the audio output selection interface. When the display apparatus 200 is not connected to the audio apparatus using the HDMI connection line, the ARC option is not selectable, and the display apparatus 200 can select only the speaker mode or the bluetooth mode. When the display device 200 is connected to the audio device using the HDMI connection line, the speaker option, the bluetooth option, and the ARC option are all selectable, and the user can autonomously select the speaker mode, the bluetooth mode, or the ARC mode, that is, the user can autonomously select whether to output audio using the speaker, output audio using bluetooth, or connect the audio device using the HDMI connection line to output audio.

In general, the display device 200 provides a general setting interface, i.e. an interface including all system settable contents, such as network settings, display settings, time settings, sound settings, and the like. Therefore, if the user wants to select the setting interface, the user needs to first control the display 275 to display a general setting interface. Further, in some embodiments, the controller 250 may also control the display 275 to display a general setting interface in response to a control instruction issued by the user through the remote controller 601 or through voice; and then controls the display interface of the display 275 to jump from the general setting interface to the sound setting interface.

As can be seen, the display device 200 in the technical solution of the present application can receive a first control instruction input by a user, and further control the display 275 to display a sound setting interface; the sound setting interface is used for representing an interface comprising an eARC control bar; then, in a case where the current audio output mode of the display apparatus 200 is the ARC mode, the ARC control bar on the sound setting interface is set to an optional state; and responding to a second control instruction input by the user, and controlling the switch in the eARC control column to be switched on or switched off. Therefore, the scheme of the application can display whether the eARC mode is selectable for the user after the audio output mode of the user is detected. Meanwhile, the user can also realize free switching between the eARC mode and the ARC mode by controlling the switch in the eARC control column, so that the audio output mode is diversified.

Fig. 11 is a flowchart illustrating a control method for an enhanced audio return channel according to an embodiment of the present application. As shown in fig. 11, the method may be implemented by a control component such as the controller 250, and specifically includes the following steps:

step S101, in response to the first control instruction, controlling the display 275 to display a sound setting interface; the first control instruction is an instruction which is input by a user and used for selecting a sound setting interface; the sound setting interface is used for representing an interface comprising an enhanced audio return channel eARC control bar. Wherein the sound setting interface is shown in figure 8.

Step S102, setting the enhanced audio return channel ARC control bar on the sound setting interface to an optional state when the current audio output mode of the display device 200 is the audio return channel ARC mode; the selectable status indicates that the display device 200 may currently use the enhanced audio return channel, enarc, mode.

Step S103, responding to a second control instruction, and controlling the switch in the enhanced audio return channel eARC control bar on the sound setting interface to be turned on or turned off; and the second control instruction is an instruction which is input by a user after the user watches the sound setting interface and is used for controlling the enhanced audio return channel eARC to be opened or closed.

In some embodiments, the step of controlling, in response to the second control instruction, the switch in the enhanced audio return channel arc control bar on the sound setting interface to be turned on or off further includes: after the switch in the enhanced audio return channel etarc control bar is turned on, under the condition that the connection line between the display device and the external audio device is a high-definition multimedia interface HDMI2.1 connection line, the display device is controlled to output audio to the external audio device in an enhanced audio return channel etarc mode.

In some embodiments, the step of controlling, in response to the second control instruction, the switch in the enhanced audio return channel arc control bar on the sound setting interface to be turned on or off further includes: and under the condition that a switch in an enhanced audio return channel eARC control bar on the sound setting interface is controlled to be closed in response to a second control instruction, controlling the display equipment to output audio to the external sound equipment in an audio return channel ARC mode.

In some embodiments, after the step of controlling the display to display the sound setting interface in response to the first control instruction, the method further includes: setting an enhanced audio return channel eARC control bar on the sound setting interface to be in an unselected state under the condition that the current audio output mode of the display device is a non-ARC mode; the non-selectable state indicates that the enhanced audio return channel, enarc, mode is not currently available to the display device.

In some embodiments, in case that the current audio output mode of the display device 200 is the audio return channel ARC mode, a schematic item of the audio return channel ARC is displayed on the sound setup interface.

In some embodiments, in a case where the current audio output mode of the display device is the non-ARC mode, a schematic item of the non-ARC device is displayed on the sound setup interface.

In some embodiments, in a case where the current audio output mode of the display device is the non-ARC mode, the display device is controlled to output audio using the non-ARC device.

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

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

Claims

1. A display device, comprising:

a display;

a controller for performing:

detecting a current audio output mode of the display equipment; the audio output modes comprise an Audio Return Channel (ARC) mode, an enhanced audio return channel (eARC) mode and a non-ARC mode;

setting an enhanced audio return channel eARC control bar on the sound setting interface to be in an optional state under the condition that the current audio output mode of the display equipment is an audio return channel ARC mode; the selectable status indicates that the display device currently can use an enhanced audio return channel (eARC) mode;

responding to a second control instruction, and controlling the switch in the enhanced audio return channel eARC control column to be turned on or off; the second control instruction is an instruction which is input by a user after the user watches the sound setting interface and is used for controlling the enhanced audio return channel eARC to be opened or closed;

under the condition that a switch in the enhanced audio return channel eARC control bar is turned on and a connecting line between the display equipment and the external sound equipment is a high-definition multimedia interface (HDMI) connecting line, controlling the display equipment to output audio to the external sound equipment in an enhanced audio return channel eARC mode;

in case that the current audio output mode of the display device is the non-ARC mode, controlling the display device to output audio using the non-ARC device.

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

and in the case that the current audio output mode of the display device is the audio return channel ARC mode, displaying a schematic item of the audio return channel ARC on the sound setting interface.

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

and under the condition that a switch in an enhanced audio return channel eARC control bar on the sound setting interface is controlled to be closed in response to a second control instruction, controlling the display equipment to output audio to the external sound equipment in an audio return channel ARC mode.

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

under the condition that the current audio output mode of the display equipment is a non-ARC mode, setting an enhanced audio return channel eARC control bar on the sound setting interface to be in an unselected state; the non-selectable state indicates that the display device is not currently available for the enhanced audio return channel, eARC, mode.

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

in case that the current audio output mode of the display device is the non-ARC mode, a schematic item of the non-ARC device is displayed on the sound setup interface.

6. A method for controlling an enhanced audio return channel, comprising:

detecting a current audio output mode of the display equipment; the audio output modes comprise an audio return channel ARC mode, an enhanced audio return channel eARC mode and a non-ARC mode;

responding to a second control instruction, and controlling the switch in an enhanced audio return channel eARC control bar on the sound setting interface to be turned on or turned off; the second control instruction is an instruction which is input by a user after the user views the sound setting interface and is used for controlling the enhanced audio return channel eARC to be opened or closed;

when a switch in the enhanced audio return channel eARC control column is turned on and a connecting line between the display equipment and the external sound equipment is a high-definition multimedia interface HDMI connecting line, controlling the display equipment to output audio to the external sound equipment in an enhanced audio return channel eARC mode;

7. The method of claim 6, wherein the step of controlling the switch on or off in an enhanced audio return channel eARC control field on the sound setup interface in response to the second control command further comprises:

8. The method of claim 6, further comprising, after the step of controlling a display to display a sound setting interface in response to the first control instruction:

setting an enhanced audio return channel eARC control bar on the sound setting interface to be in an unselected state under the condition that the current audio output mode of the display device is a non-ARC mode; the non-selectable state indicates that the display device is not currently available for the enhanced audio return channel, eARC, mode.