CN116527971A

CN116527971A - Display device and audio playing method

Info

Publication number: CN116527971A
Application number: CN202310417969.8A
Authority: CN
Inventors: 卢平光; 于清晓; 何营昊
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-08-01

Abstract

Some embodiments of the present application provide a display device and an audio playing method. The display device may acquire the connection status of the external device interface. After detecting that the target external device interface is connected with the external device, the device type of the external device can be obtained. If the equipment type is the power amplifier equipment, the display equipment switches the audio return channel to the target external device interface, and sets the audio output channel as the audio return channel. After the user indicates to play the media asset, the audio data is sent to the external device through the audio return channel, so that the external device plays the audio data. The display equipment can automatically switch the audio return channel to an external device interface connected with the power amplifier equipment, so that the function of the audio return channel is realized, the audio effect played by the power amplifier equipment can be improved, and the use experience of a user is improved.

Description

Display device and audio playing method

Technical Field

The application relates to the technical field of display equipment, in particular to display equipment and an audio playing method.

Background

The display device is a terminal device capable of outputting specific display pictures, along with the rapid development of the display device, the functions of the display device are more and more abundant, the performance is more and more powerful, the bidirectional man-machine interaction function can be realized, and various functions such as video, entertainment and data are integrated, so that the user diversified and personalized requirements are met.

The user can control the display device to play various media assets. After the media asset data is acquired, the display device may perform decoding on the media asset data to obtain video data and audio data. The audio data can be displayed through the display and simultaneously played through the audio device, thereby enabling the user to view the media assets. The display device can use a built-in audio player to play audio data, and can also use an external power amplifier device to play audio data. The power amplifier device can be connected to an external device interface of the display device, so that audio data transmitted by the display device can be played. The display device can also support the function of an audio return channel, and when the power amplifier device is connected to an external device interface provided with the audio return channel, the display device can return audio data to the power amplifier device through the sound return technology for signal amplification processing and output.

The display apparatus may provide the audio return channel at some external device interface. However, when the user connects the power amplifier device to the display device, the user may not know the current setting condition of the audio feedback channel, but access the power amplifier device to a certain external device interface at will, so that the display device cannot process the audio data by using the audio feedback channel, the audio effect played by the power amplifier device is poor, and the use experience of the user is seriously reduced.

Disclosure of Invention

The application provides a display device and an audio playing method, which are used for solving the problems that in the related art, the display device cannot process audio data by using an audio return channel, so that the audio effect played by power amplifier equipment is poor, and the use experience of a user is seriously reduced.

In a first aspect, some embodiments of the present application provide a display apparatus including a display, at least two external device interfaces, and a controller. Wherein the external device interface is configured to connect to an external apparatus; the controller is configured to:

acquiring the connection state of external equipment of the interfaces of the at least two external devices;

based on the detection of the interface of the target external device accessing the external equipment, acquiring the equipment type of the external equipment;

if the equipment type is power amplification equipment, switching an audio return channel of the display equipment to the target external device interface, and setting an audio output channel of the display equipment as the audio return channel;

and responding to an instruction of a user for indicating to play media assets, and sending first audio data of a display device to the external device through the audio return channel so that the external device plays the first audio data.

In a second aspect, some embodiments of the present application provide an audio playing method, which is applied to a display device, and is characterized in that the method includes:

acquiring the connection state of external equipment of at least two external device interfaces;

According to the technical scheme, some embodiments of the application provide a display device and an audio playing method. The display device may acquire the connection status of the external device interface. After detecting that the target external device interface is connected with the external device, the device type of the external device can be obtained. If the equipment type is the power amplifier equipment, the display equipment switches the audio return channel to the target external device interface, and sets the audio output channel as the audio return channel. After the user indicates to play the media asset, the audio data is sent to the external device through the audio return channel, so that the external device plays the audio data. The display equipment can automatically switch the audio return channel to an external device interface connected with the power amplifier equipment, so that the function of the audio return channel is realized, the audio effect played by the power amplifier equipment can be improved, and the use experience of a user is improved.

Drawings

In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

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

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

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

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

FIG. 5 illustrates a schematic diagram of a user interface in some embodiments;

FIG. 6 illustrates a schematic diagram of an application panel in some embodiments;

FIG. 7 illustrates a schematic diagram of the connection of a display device and an external device in some embodiments;

fig. 8 is a schematic diagram showing hardware connection between a power amplifier device and a display device in some embodiments;

FIG. 9 illustrates a schematic diagram of an audio output setup interface in some embodiments;

FIG. 10 is a diagram of an audio backhaul channel adaptive mode confirmation message in some embodiments;

FIG. 11 illustrates an interactive flow diagram for components of a display device in some embodiments;

FIG. 12 illustrates a schematic diagram of an audio return channel setup interface in some embodiments;

FIG. 13 is a schematic diagram of a display displaying first hint information in some embodiments;

FIG. 14 is a schematic diagram illustrating the connection of a media asset device, a power amplifier device, and a display device in some embodiments;

FIG. 15 is a schematic diagram of a display displaying second hint information in some embodiments;

FIG. 16 is a schematic diagram illustrating the connection of a media asset device, a power amplifier device, and a display device in some embodiments;

fig. 17 illustrates a schematic diagram of an audio backhaul channel switching module in some embodiments.

Detailed Description

For purposes of clarity and implementation of the present application, the following description will make clear and complete descriptions of exemplary implementations of the present application with reference to the accompanying drawings in which exemplary implementations of the present application are illustrated, it being apparent that the exemplary implementations described are only some, but not all, of the examples of the present application.

It should be noted that the brief description of the terms in the present application is only for convenience in understanding the embodiments described below, and is not intended to limit the embodiments of the present application. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.

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

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

The display device provided in the embodiment of the application may have various implementation forms, for example, may be a television, an intelligent television, a laser projection device, a display (monitor), an electronic whiteboard (electronic bulletin board), an electronic desktop (electronic table), and the like. Fig. 1 and 2 are specific embodiments of a display device of the present application.

Fig. 1 is a schematic diagram of 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 device 200 through the smart device 300 or the control apparatus 100.

In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes infrared protocol communication or bluetooth protocol communication, and other short-range communication modes, and the display device 200 is controlled by a wireless or wired mode. The user may control the display device 200 by inputting user instructions through keys on a remote control, voice input, control panel input, etc.

In some embodiments, a smart device 300 (e.g., mobile terminal, tablet, computer, notebook, etc.) may also be used to control the display device 200. For example, the display device 200 is controlled using an application running on a smart device.

In some embodiments, the display device may receive instructions not using the smart device or control device described above, but rather receive control of the user by touch or gesture, or the like.

In some embodiments, the display device 200 may also perform control in a manner other than the control apparatus 100 and the smart device 300, for example, the voice command control of the user may be directly received through a module configured inside the display device 200 device for acquiring voice commands, or the voice command control of the user may be received through a voice control device configured outside the display device 200 device.

In some embodiments, the display device 200 is also in data communication with a server 400. May be configured to allow the display device 200 to be communicatively coupled via 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 device 200. The server 400 may be a cluster, or may be multiple clusters, and may include one or more types of servers.

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

As shown in fig. 3, the display apparatus 200 includes at least one of a modem 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, a memory, a power supply, and a user interface.

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

The display 260 includes a display screen component for presenting a picture, and a driving component for driving an image display, a component for receiving an image signal from the controller output, displaying video content, image content, and a menu manipulation interface, and a user manipulation UI interface.

The display 260 may be a liquid crystal display, an OLED display, a projection device, or a projection screen.

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

A user interface, which may be used to receive control signals from the control device 100 (e.g., an infrared remote control, etc.).

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

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

The modem 210 receives broadcast television signals through a wired or wireless reception manner, and demodulates audio and video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.

In some embodiments, the controller 250 and the modem 210 may be located in separate devices, i.e., the modem 210 may also be located in an external device to the main device in which the controller 250 is located, such as an external set-top box or the like.

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

In some embodiments the controller includes at least one of a central processing unit (Central Processing Unit, CPU), video processor, audio processor, graphics processor (Graphics Processing Unit, GPU), RAM (Random Access Memory, RAM), ROM (Read-Only Memory, ROM), first to nth interfaces for input/output, a communication Bus (Bus), etc.

The user may input a user command through a Graphical User Interface (GUI) displayed on the display 260, 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 recognizes the sound or gesture through the sensor to receive the user input command.

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

As shown in fig. 4, the system of the display device is divided into three layers, an application layer, a middleware layer, and a hardware layer, from top to bottom.

The application layer mainly comprises common applications on the television, and an application framework (Application Framework), wherein the common applications are mainly applications developed based on Browser, such as: HTML5 APPs; native applications (Native APPs);

the application framework (Application Framework) is a complete program model with all the basic functions required by standard application software, such as: file access, data exchange, and the interface for the use of these functions (toolbar, status column, menu, dialog box).

Native applications (Native APPs) may support online or offline, message pushing, or local resource access.

The middleware layer includes middleware such as various television protocols, multimedia protocols, and system components. The middleware can use basic services (functions) provided by the system software to connect various parts of the application system or different applications on the network, so that the purposes of resource sharing and function sharing can be achieved.

The hardware layer mainly comprises a HAL interface, hardware and a driver, wherein the HAL interface is a unified interface for all the television chips to be docked, and specific logic is realized by each chip. The driving mainly comprises: audio drive, display drive, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (e.g., fingerprint sensor, temperature sensor, pressure sensor, etc.), and power supply drive, etc.

In some embodiments of the present application, a user interface may be displayed in display 260. The user interface may be a specific target image, for example, various media materials obtained from a network signal source, including video, pictures and the like. The user interface may also be some UI interface of the display device 200, such as a system recommendation page or the like.

The display device 200 may have various functions such as browsing web pages, playing media assets, entertainment games, projecting screens, etc., thereby providing a wide variety of services to users. The user may control the display device 200 to launch a related application program to thereby launch a corresponding function.

In some embodiments, the controller 250 may control the display 260 to display a user interface when the user controls the display device 200 to power on. FIG. 5 illustrates a schematic diagram of a user interface in some embodiments. As shown in fig. 5, the user interface includes a first navigation bar 500, a second navigation bar 510, a function bar 520, and a content display area 530, the function bar 520 including a plurality of function controls such as "watch record", "my collection", and "my application", etc. Wherein the content displayed in the content display area 530 will change as the selected controls in the first navigation bar 500 and the second navigation bar 510 change. When the application panel page is applied, a user can trigger entering a corresponding application panel by clicking on a My application control to input a display instruction for the application panel page. It should be noted that, the user may also input the selection operation of the function control in other manners to trigger entering into the application panel. For example, control is entered into the application panel page using a voice control function, a search function, or the like.

The user can view an application program that the display device 200 has installed, i.e., functions supported by the display device 200, through the application panel. The user may select one of the applications and open it to implement the functionality of the application. It should be noted that, the application installed in the display device 200 may be a system application or a third party application. The user controls the display device 200 to implement a function corresponding to a certain application by opening the application. Fig. 6 illustrates a schematic diagram of an application panel in some embodiments. As shown in fig. 6, the application panel includes three controls, namely a "player", "cable tv", and "video chat". Wherein the user may control the display device 200 to open the player application by clicking on the "player" control. The user can perform corresponding operations in the player, such as searching for media assets, etc. The user may click on the "cable" control to view some of the media channels, including various media programs offered by the cable provider, using display device 200. The user may click on the "video chat" control to conduct video chat using display device 200.

In some embodiments, the display apparatus 200 is further provided with an external device interface 240, where the external device interface 240 is used to connect to an external device, and the external device may be a media device, such as a game device, to implement connection of the display apparatus 200 to the external device. The display device 200 and the external device which establish communication connection are respectively used as a receiving end (Sink end) and a transmitting end (source end), and the external device can perform a data transmission process through the external device interface 240 and the display device 200 to transmit media information signals to the display device 200. For example, in the course of using the game device by the user, it is possible to output video data and audio data in real time for the game process and transmit the video data and audio data to the display device 200 to output the video data and audio data as image pictures and sounds through the display device 200. At this time, the game device serves as a transmitting end, and the display device 200 serves as a receiving end.

The display device 200 and the external device are provided with data interfaces with the same interface specifications and functions. Fig. 7 illustrates a schematic diagram of the connection of the display device 200 and an external device in some embodiments. As shown in fig. 7, HDMI (High Definition Multimedia Interface, high-definition multimedia interface) is provided on both the display device 200 and the external device. The user may insert two ends of the HDMI interface data line on the display device 200 and the external device, respectively, and set the signal source of the display device 200 as the HDMI interface after the external device and the display device 200 are started, thereby realizing data transmission between the display device 200 and the external device.

In order to realize communication connection between the display device 200 and the external device, other connection modes, such as DVI (Digital Visual Interface), VGA (Video Graphics Array), USB (Universal Serial Bus), etc., can be adopted between the display device 200 and the external device; and can also be wireless connection modes, such as wireless local area network, bluetooth connection, infrared connection and the like. Different communication connection modes can adopt different information transfer protocols, for example, when the connection is realized by adopting an HDMI interface, the HDMI transmission protocol can be adopted for data transmission.

After the display device 200 and the asset device are connected through HDMI, the asset device may transmit asset data to the display device 200. The display device 200 may perform decoding on the media data to obtain video data and audio data. The display device 200 may display video data in the display 260 and play audio data through a built-in audio player such as a speaker.

In some embodiments, it is contemplated that the performance of an audio player built into the display device 200 may be poor, resulting in poor quality of the sound played. To enhance the user experience, the display device 200 may play audio data through an external power amplifier device, such as soundbar.

The display apparatus 200 may be connected to the power amplification apparatus through an external device interface 240, such as an HDMI interface. The user may set the audio output channel of the display apparatus 200 to be connected to the external device interface 240 of the power amplifying apparatus, and at this time, all audio data generated in the display apparatus 200 may be transmitted to the power amplifying apparatus through the external device interface 240. For example, when a user plays a media asset program using the display device 200, the display device 200 may transmit audio data of the media asset program to the power amplification device, so that the power amplification device plays the media asset program. Meanwhile, audio data such as a system alert sound generated by the user using the display device 200 may also be transmitted to the power amplifying device together.

In some embodiments, the display apparatus 200 may connect the asset apparatus and the power amplifier apparatus at the same time, and may connect the asset apparatus through one external device interface 240 and connect the asset apparatus through another external device interface 240. When the power amplifier device is used, not only various audio data generated in the display device 200 but also audio data transmitted to the display device 200 by the media asset device can be played.

When the user instructs the display device 200 to play the asset data in the asset device, the display device 200 may first decode the video data and the audio data. The display device 200 may directly transmit the audio data to the power amplifying device so that the power amplifying device plays the audio data. Meanwhile, the display device 200 may display video data in the display 260.

In some embodiments, the display device 200 also supports an audio return channel (Audio Return Channel, ARC) function. The audio frequency return channel can return the audio frequency data to the power amplification equipment through the sound return technology for signal amplification processing and output so as to improve the effects of tone quality and the like and improve the user experience.

The audio return channel may be provided in the external device interface 240 of the display apparatus 200, for example at some HDMI interface. When the HDMI interface is connected to the power amplifier device and the power amplifier device also supports the audio backhaul channel function, the display device 200 may set the audio output channel as the audio backhaul channel. The display device 200 may perform enhancement processing on the audio data through the audio backhaul channel function, and send the audio data to the power amplifier device, so that the power amplifier device plays the audio data.

Fig. 8 illustrates a schematic diagram of the hardware connection of the power amplifier device and the display device 200 in some embodiments. As shown in fig. 8, the display device 200 and the power amplifier device support an audio return channel function. The sound feedback is completed by using a quality signal line, and the interactive command between the display device 200 and the power amplifier device is completed by using a CEC signal line. In this example, the audio data is completely separated from the transmission line of the command data, and time-sharing control by software is not required. The transmission of command data is serial communication in which a process belongs to a single line system, and is called CEC protocol.

In some embodiments, the display device 200 may automatically set the audio playback mode. The display apparatus 200 may set the audio backhaul channel at a certain external device interface 240 while performing the apparatus access detection at that external device interface 240. If the external device interface 240 is connected to the power amplification apparatus, the display apparatus 200 may set the audio output channel as an audio return channel, and play audio through the power amplification apparatus. If no power amplifier device is connected at the external device interface 240, the display apparatus 200 may set the audio output channel as a built-in audio player, i.e., the display apparatus 200 itself plays audio.

In some embodiments, the audio playing mode may also be set by the user.

The user may instruct the display device 200 to display an audio output setting interface. Fig. 9 illustrates a schematic diagram of an audio output setup interface in some embodiments. As shown in fig. 9, the audio output setting interface includes controls corresponding to all audio output modes supported by the display device 200. For example, the display device 200 currently supports an in-built audio player to play audio, or sends audio to a power amplifier device for playing through an audio feedback channel ARC. One of the controls may be selected by the user to formulate an audio output for the display device 200.

In some embodiments, the audio backhaul channel functionality may also enable bi-directional data interaction between the external device and the display device 200. For example, the power amplification device may transmit video data to the display device 200 at the same time as the display device 200 transmits audio data to the power amplification device.

It should be noted that, for an external device interface 240, when the audio backhaul is not set, if the external device interface 240 is connected to an external device, the display device 200 may perform unidirectional data transmission with the external device. For example, the display apparatus 200 is connected to the asset apparatus, and the asset apparatus may transmit asset data to the display apparatus 200 through the external device interface 240. Alternatively, the display apparatus 200 is connected to a power amplification apparatus, and the display apparatus 200 may transmit an audio apparatus to the power amplification apparatus through the external device interface 240. The data transfer at this time is unidirectional.

For some application scenarios, bi-directional data interaction between the display device 200 and an external device may be required. For example, the user connects the media device to the power amplifier device, and then connects the power amplifier device to the display device 200, hopes the display device 200 to play video, and simultaneously plays audio. At this time, the data interaction between the display device 200 and the power amplifier device can be realized through the audio backhaul channel function. That is, the power amplifier device sends the video data of the media asset device to the display device 200 for display, and at the same time, the power amplifier device can play the audio data.

However, the user may not know that the display apparatus 200 has an audio backhaul channel function when using the display apparatus 200, which results in the user not knowing which external device interface 240 of the display apparatus 200 the audio backhaul channel is provided at. When the user connects the power amplifier device to the display device 200, the user may optionally connect the power amplifier device to an external device interface 240, but the external device interface 240 is not provided with an audio backhaul channel. At this time, the display device 200 cannot process the audio data by using the audio backhaul channel, so that the audio effect played by the power amplifier device is poor, and the use experience of the user is seriously reduced. Or, when the user has a requirement of using the audio return channel function, the power amplifier device cannot be accurately connected to the external device interface 240 for setting the audio return channel, so that the media resource device and the power amplifier device cannot be normally used, and the use experience of the user is reduced.

To this end, the display device 200 may have an audio return channel adaptation function. When the power amplifier device is connected to the display device 200, the display device 200 may automatically set the audio backhaul channel to the external device interface 240 to which the power amplifier device is connected, so that the display device 200 can use the audio backhaul channel function to improve the user experience. The display device 200 may be provided with an audio return channel adaptation mode. When the display device 200 enters the audio backhaul channel adaptation mode, the display device 200 may turn on the audio backhaul channel adaptation function.

In some embodiments, the user may send an audio return channel adaptive mode instruction to the display device 200 by operating a designated key of the remote control. And binding the corresponding relation between the adaptive mode instruction of the audio return channel and the remote controller key in advance in the practical application process. For example, an audio backhaul channel adaptive mode key is set on the remote controller, when the user touches the key, the remote controller sends an audio backhaul channel adaptive mode command to the controller 250, and at this time, the controller 250 controls the display device 200 to enter the audio backhaul channel adaptive mode. When the user touches the key again, the controller 250 may control the display device 200 to exit the audio return channel adaptation mode.

In some embodiments, the user may send an audio return channel adaptive mode instruction to the display device 200 by way of voice input using a sound collector, e.g., a microphone, of the display device 200 to control the display device 200 to enter the audio return channel adaptive mode. The display device 200 may be provided therein with an intelligent voice system that can recognize a user's voice to extract instruction contents inputted by the user.

In some embodiments, the audio return channel adaptive mode instruction may also be sent to the display device 200 when the user controls the display device 200 using a smart device, such as a cell phone. In the practical application process, a control can be set in the mobile phone operation interface, and whether the mobile phone enters the audio return channel adaptive mode can be selected through the control, so that an audio return channel adaptive mode instruction is sent to the controller 250, and at the moment, the controller 250 can control the display device 200 to enter the audio return channel adaptive mode.

An audio return channel adaptation mode option may also be provided in the UI interface of the display device 200, which when clicked by the user may control the display device 200 to enter or exit the audio return channel adaptation mode.

In some embodiments, to prevent the user from triggering the audio backhaul channel adaptive mode by mistake, when the controller 250 receives the audio backhaul channel adaptive mode instruction, the display 260 may be controlled to display the audio backhaul channel adaptive mode confirmation information, so that the user performs a secondary confirmation as to whether to control the display apparatus 200 to enter the audio backhaul channel adaptive mode. Fig. 10 is a diagram illustrating an audio backhaul channel adaptive mode acknowledgement in some embodiments.

FIG. 11 shows an interactive flow diagram of components of display device 200 in some embodiments, including the steps of:

s101, acquiring the connection state of external equipment of the at least two external device interfaces 240;

s102, accessing external equipment based on detection of a target external device interface, and acquiring the equipment type of the external equipment;

s103, switching an audio return channel of the display equipment 200 to the target external device interface based on the detection that the equipment type is a power amplifier equipment, and setting an audio output channel of the display equipment 200 as the audio return channel;

and S104, responding to an instruction of a user for playing media assets, and sending the first audio data of the display device 200 to the external device through the audio return channel so as to enable the external device to play the first audio data.

In some embodiments, the display apparatus 200 may provide at least two external device interfaces 240, for example, 2 HDMI interfaces. Each external device interface 240 may be connected to an external device, while the display apparatus 200 may set the audio backhaul channel to any one of the external device interfaces 240.

The controller 250 may detect each external device interface 240 in real time to obtain the connection status of the external device of each external device interface 240, thereby determining whether the external device interface 240 has access to the external device. The controller 250 may acquire the device connection status of each external apparatus interface 240 through the device insertion detection thread.

Taking HDMI interface as an example, HDMI interface includes 4 minimized differential signaling technology (Time Minimized Differential Signal, TMDS) channels, which are mainly used for transmitting data, 1 display data channel (Display Data Channel, DDC) and consumer electronics control (Consumer Electronics Control, CEC) lines. The DDC is a bus standard, and its basic function is to transmit electronic archive information of the display, such as receivable line frequency field frequency range, manufacturer, production date, product serial number, product model, standard display mode and parameters thereof, supported DDC standard category, version information of EDID, etc. The high version of the DDC standard bus may also allow an external device to directly adjust basic parameters of the display such as brightness, contrast, magnitude of line field amplitude, line field center position, color temperature parameters, etc.

The CEC channel is an optional channel, and through the CEC channel, advanced control functions among some audio and video devices, such as supporting two-way communication between a video source and a digital television, and realizing functions of single key pressing, simultaneous starting, automatic power-on, automatic signal routing, remote control and the like, can be realized. The HDMI also comprises a hot plug (HotPlugDetect, HPD) pin, and the controller 250 port can detect whether an external device is connected to the HDMI through the HPD.

In some embodiments, when detecting that a certain external device interface 240 is connected to an external device, using the target external device interface reference in the embodiments of the present application, the controller 250 may obtain the device type of the external device, so as to determine whether to set the audio backhaul channel at the target external device interface according to the device type.

Before the device type of the external device is obtained, the controller 250 may perform connection verification on the external device to ensure the security of the device connection.

The controller 250 may first obtain the physical address of the target external device interface, which is referred to as a first physical address in the embodiment of the present application. For a plurality of external device interfaces 240 in the display apparatus 200, each external device interface 240 may have a unique physical address for differentiation. The external device may determine the external device interface 240 to which it is currently connected according to the physical address, so as to declare to the display device 200 that it will occupy the external device interface 240.

The controller 250 may send a connection verification instruction to the external device through the target external device interface, so that the external device feeds back the connection verification information according to the connection verification instruction. After the external device accesses the target external device interface, the external device can read the first physical address of the target external device interface, and can generate connection verification information according to the first physical address, wherein the connection verification information is used for declaring that the external device interface can be occupied by the external device. The external device may transmit the connection verification information to the display device 200.

The controller 250 may receive connection verification information fed back by the external device. The connection verification information includes a physical address, which is referred to as a second physical address in the embodiment of the present application. After the external device reads the first physical address, the read physical address is put into the connection verification information to declare that the external device reads the correct physical address, so that the interface of the target external device is occupied, and the pairing effect is realized.

The controller 250 may detect the second physical address.

If the first physical address is the same as the second physical address, it indicates that the external device obtains the correct first physical address, at this time, it may be set to allow the external device to establish connection with the display device 200, and data interaction may be performed between the external device and the display device 200. Meanwhile, the controller 250 may acquire the device type of the external device.

If the first physical address and the second physical address are different, it is indicated that the external device obtains the wrong physical address, which may be the reason of the external device itself to cause the reading failure, or the external device has a security problem. To ensure the device security of the display device 200, the controller 250 may set to prohibit the external device from establishing a connection with the display device 200, where the external device cannot send data to the display device 200, and the display device 200 cannot send data to the external device.

In some embodiments, when the device type of the external device is acquired, the controller 250 may first send a connection information acquisition request to the external device through the target external device interface, so that the external device feeds back the connection information according to the connection information acquisition request. The external device may send connection information carrying the logical address of the external device to the display device 200.

The controller 250 may receive the connection information fed back by the external device and obtain the device type of the external device based on the logical address. The logical address may be information generated by the external device for characterizing the self-supported functions. Through the logical address, the controller 250 may determine the function of the external device, for example, support the audio backhaul channel function, so as to determine whether the external device is a power amplifier device.

In some embodiments, the controller 250 may set the audio playing mode of the display device 200 according to the device type of the external device.

Based on detecting that the device type of the external device is a power amplifier device, the controller 250 may switch the audio backhaul channel of the display device 200 to the target external device interface, and set the audio output channel of the display device 200 to the audio backhaul channel. At this time, the audio playing mode of the display device 200 is to control the power amplifier device to play audio through the audio feedback channel.

The user may play the asset using the display device 200, for example, the user may input an instruction to the display device 200 indicating to play the asset. In response to the instruction from the user, the controller 250 may send the audio data in the display device 200, which is referred to as the first audio data in the embodiment of the present application, to the external device through the audio feedback channel, so that the external device plays the first audio data. It should be noted that the first audio data may include all audio data in the display device 200, including audio data corresponding to media being played, and audio data generated by the display device 200 itself, such as a system alert sound. I.e. all sound in the display device 200 can be played by the power amplifying device.

In some embodiments, the controller 250 may set the audio output channel of the display device 200 to be an audio player based on detecting that the device type of the external device is not a power amplifier device. At this time, audio is played by an audio player built in the display apparatus 200, for example, a speaker. Meanwhile, the controller 250 may not set the audio return channel.

In response to the user instruction to play the media asset, the controller 250 may control the audio player to play the first audio data.

In some embodiments, it may not be possible to actively control the display device 200 into the audio return channel adaptive mode, considering that the user may not be aware of the audio return channel function that the display device 200 has. At this time, the display device 200 may set the audio return channel adaptive mode by itself.

In response to a power-on instruction input by a user, the controller 250 may control the display device 200 to enter a power-on state. Meanwhile, the display device 200 may be directly controlled to enter the audio return channel adaptive mode. At this time, the controller 250 may detect the connection state of the external device of each external device interface 240 in real time to determine whether to access the power amplifier device.

In some embodiments, when the user knows that the display apparatus 200 has the audio backhaul function, it may be desirable to set the audio backhaul on a specific external device interface 240 according to his own preference, and automatically connect the power amplifier apparatus to the external device interface 240.

To this end, the display device 200 may be provided with an audio return channel custom function. The user may choose to set the audio return channel at some external device interface 240 by himself.

The user may input an instruction to the display device 200 indicating the setting of the audio return channel, and in response to the instruction by the user, the controller 250 may control the display 260 to display the audio return channel setting interface. Fig. 12 illustrates a schematic diagram of an audio return channel setup interface in some embodiments. As shown in fig. 12, the audio backhaul channel setup interface includes audio backhaul channel prompt information and a control corresponding to each external device interface 240. The display device 200 contains 3 HDMI interfaces, and the user can set the audio return channel ARC at any one of the HDMI interfaces, for example at the HDMI 2 interface. The control of the HDMI interface where the audio backhaul channel is currently located may include an audio backhaul channel prompt for characterizing the external device interface 240 where the audio backhaul channel is currently located. In the figure, the content of the control corresponding to the HDMI 2 interface is "HDMI 2/ARC", that is, it means that the audio feedback channel ARC is located at the HDMI 2 interface.

In response to a user selection operation on a target control, the controller 250 may acquire an external device interface 240 corresponding to the target control, which is referred to as an external device interface to be switched in the embodiment of the present application. The controller 250 may switch the audio backhaul channel to the external device interface to be switched.

In some embodiments, the version of the transmission protocol of the different external device interfaces 240 may be different. Taking HDMI interface as an example, the display device 200 may include a plurality of HDMI interfaces, and the version of the transmission protocol may include HDMI 2.0 and HDMI 2.1. When the transmission protocol versions of the HDMI interface are different, there may be a difference in the effect of using the audio backhaul channel. Therefore, the controller 250 may prompt the user for the connection mode of the HDMI interface according to the transmission protocol version of the HDMI interface.

After switching the audio backhaul channel to the external device interface to be switched, the controller 250 may obtain a transmission protocol version of the external device interface to be switched, which is referred to as a first transmission protocol version in the embodiment of the present application. Taking HDMI transport protocol as an example, the transport protocol may be divided into a plurality of version types in a version update iteration order. In this embodiment, the second version is higher than the first version. The second version refers to the HDMI enhanced version, i.e. the newer version in the transmission protocol, which may be HDMI 2.1 or a later version that will be pushed out. In the embodiment of the present application, the first version refers to the HDMI standard version, and is other version than the second version, that is, the conventional version in the transmission protocol may be HDMI 2.0.

If the first transmission protocol version is detected as the first version, the controller 250 may control the display 260 to display the first hint information. The first prompting information may prompt the user how to connect the external device such as the power amplifier device and the media resource device with the display device 200 according to the connection mode of the external device interface 240 of the current display device 200, so that the user obtains the best use experience.

When the audio feedback channel ARC is set in the HDMI 2.0 interface, the HDMI 2.0 interface needs to be connected to a power amplifier device. At this time, the HDMI 2.1 interface is in an idle state and can be used for connecting media devices, such as a game machine. Considering that the parameter requirements of audio and video signals transmitted by some high-specification game machines are higher, the HDMI 2.1 interface can be used for better transmitting the high-specification parameters. Accordingly, the user can be recommended to connect the game device to the HDMI 2.1 interface and connect the power amplification device to the HDMI 2.0 interface.

I.e. the first prompting message is used for prompting that the power amplifier device is connected to the external device interface to be switched, and the media asset device is connected to the external device interface 240 in the display device 200 other than the external device interface to be switched. FIG. 13 is a schematic diagram of display 260 displaying first prompt information in some embodiments. The HDMI 1 interface of the display device 200 is an HDMI 2.0 interface, and the HDMI 2 interface is an HDMI 2.1 interface. The first prompt message may be "please access the power amplifier device to the HDMI 1 interface and the media asset device to the HDMI 2 interface". The user can connect with each device according to the first prompt information.

Fig. 14 illustrates a schematic diagram of the connection of the media asset device, the power amplifier device, and the display device 200 in some embodiments. As shown in fig. 14, the display device 200 includes an HDMI 2.0 interface and an HDMI 2.1 interface, and the audio return channel ARC is provided at the HDMI 2.0 interface. The HDMI 2.0 interface of the display device 200 is connected to the power amplifier device, and the HDMI 2.1 interface is connected to the media device.

The media asset device may send media asset data to the display device 200. In response to the asset data transmitted by the asset device, the controller 250 may perform decoding on the asset data to obtain the first video data and the second audio data.

The controller 250 may transmit the second audio data to the power amplifying apparatus through the external device interface to be switched so that the power amplifying apparatus plays the second audio data, and the controller 250 may control the display 260 to display the first video data.

In some embodiments, if the first transmission protocol version is detected as the second version, the controller 250 may control the display 260 to display the second hint information. The second prompting information is used for prompting that the power amplifier equipment is connected to an interface of an external device to be switched and the media resource equipment is connected to the power amplifier equipment.

Because the HDMI 2.1 interface is provided with the audio return channel ARC, the power amplifier device needs to be connected with the HDMI 2.1 interface. At this time, the media asset device cannot connect to the HDMI 2.1 interface. Considering the quality of the media data sent by the media device, the user may be prompted to directly connect the media device to the power amplifier device, and the power amplifier device forwards the video data to the display device 200, so as to improve the image quality effect. FIG. 15 is a schematic diagram of display 260 displaying second hint information in some embodiments. The HDMI 1 interface of the display device 200 is an HDMI 2.0 interface, and the HDMI 2 interface is an HDMI 2.1 interface. The second prompt message may be "please connect the power amplifier device to the HDMI 2 interface, and connect the media asset device to the power amplifier device". The user can connect with each device according to the second prompt information.

Fig. 16 illustrates a schematic diagram of the connection of the media asset device, the power amplifier device, and the display device 200 in some embodiments. As shown in fig. 16, the display device 200 includes an HDMI 2.0 interface and an HDMI 2.1 interface, and the audio return channel ARC is provided at the HDMI 2.1 interface. The power amplifier device comprises an input interface and an output interface, and an audio return channel ARC of the power amplifier device is arranged at the output interface. The HDMI 2.1 interface of the display device 200 is connected to the output interface of the power amplifier device, and the media asset device is connected to the input interface of the power amplifier device.

The media asset device may send the media asset data to the power amplifier device, and the power amplifier device may decode the media asset data to obtain the second video data and the audio data. The power amplification device may play the audio data while the second video data may be transmitted to the display device 200. The controller 250 may control the display 260 to display the second video data.

In some embodiments, after the controller 250 switches the audio backhaul channel of the display apparatus 200 to the target external device interface and sets the audio output channel of the display apparatus 200 to the audio backhaul channel, the transmission protocol version of the target external device interface may also be acquired, which is referred to as a second transmission protocol version in this embodiment.

If the second transmission protocol version is the first version, the controller 250 may control the display 260 to display the first hint information. If the second transmission protocol version is the second version, the controller 250 may control the display 260 to display the second hint information.

In some embodiments, considering that the display apparatus 200 may support higher resolution, the display apparatus 200 may declare its own capabilities to the external device, including the supported resolution case, by setting extended display identification data (Extended Display Identification Data, EDID) at the external device interface 240. The extended display identification data is a standard data format of the video electronics standards association (Video Electronics Standards Association, VESA) that includes parameters relating to the display 260 and its capabilities, including, but not limited to: the string of vendor information, maximum image size, color settings, vendor presets, limits of frequency range, display 260 name and serial number, and may also include the physical address of the external device interface 240.

The external device may read the capability of the display device 200 and the physical address of the currently connected external device interface 240 according to the extended display identification data.

The user may make a setting as to whether to use the extended display identification data to the external device interface 240, for example, input an instruction indicating to set the extended display identification data to the target external device interface. In response to the instruction of the user, the controller 250 may generate the extended display identification data based on the first physical address and set the extended display identification data to the target external device interface. The extended display identification data is used to enable the external device to read the first physical address. After the external device reads the first physical address, a connection verification instruction may be generated according to the first physical address, so as to establish a connection with the display device 200.

It should be noted that, the power amplifier device may not be able to read the extended display identification data, and thus may not be able to obtain the first physical address of the target external device interface, and thus may not be able to connect with the display device 200, and may not work normally.

For this reason, after the connection verification instruction is sent to the external device, if the connection verification information fed back by the external device is not received, the controller 250 may control the display 260 to display the third prompting information. The third prompting information is used for prompting the external device to be connected to the external device interface 240 other than the target external device interface, or canceling the setting of the extended display identification data for the target external device interface. At this time, the user may select the target external device interface not to use EDID or switch the other external device interface 240 to connect the power amplifier apparatus.

In some embodiments, the display device 200 supports audio backhaul channel ARC and/or eARC (enhanced Audio Return Channel, enhanced audio backhaul channel) functionality.

The display apparatus 200 includes an audio backhaul channel switching module configured to switch the audio backhaul channel to each external device interface 240. Fig. 17 illustrates a schematic diagram of an audio backhaul channel switching module in some embodiments. As shown in fig. 17, the audio return channel switching module may be a double pole double throw relay, including a relay and a double pole double throw switch. The relay is connected with the double-pole double-throw switch and is used for controlling the connection and disconnection of the double-pole double-throw switch. The input end of the double pole double throw switch is connected with the controller 250, and the controller 250 is the CPU in the figure. The output end of the double-pole double-throw switch is respectively connected with the HDMI 2.0 interface and the HDMI 2.1 interface. The double pole double throw switch may be in communication with one of the HDMI interfaces, thereby providing an audio return channel at that HDMI interface. The control angle SW of the relay is connected to the controller 250, and the controller 250 controls the relay so that the relay communicates the double pole double throw switch to the HDMI 2.0 interface or the HDMI 2.1 interface.

The embodiment of the application also provides an audio playing method, which comprises the following steps:

Step 101, obtaining the connection state of external equipment of the interfaces of the at least two external devices;

102, accessing external equipment based on detection of a target external device interface, and acquiring the equipment type of the external equipment;

step 103, based on detecting that the equipment type is a power amplifier equipment, switching an audio return channel of the display equipment to the target external device interface, and setting an audio output channel of the display equipment as the audio return channel;

step 104, in response to an instruction of playing media information indicated by a user, sending first audio data of a display device to the external device through the audio return channel, so that the external device plays the first audio data.

In some embodiments, obtaining the device type of the external device further includes:

sending a connection information acquisition request to the external device through the target external device interface, so that the external device feeds back the connection information according to the connection information acquisition request, wherein the connection information comprises a logic address of the external device; receiving connection information fed back by external equipment, and resolving a logic address from the connection information; and obtaining the device type of the external device based on the logical address.

In some embodiments, further comprising:

acquiring a first physical address of a target external device interface; transmitting a connection verification instruction to the external device through the target external device interface, so that the external device feeds back connection verification information according to the connection verification instruction, wherein the connection verification information comprises a second physical address; and receiving connection verification information fed back by the external equipment.

If the first physical address is the same as the second physical address, setting up a connection allowing the external device and the display device to be connected, and executing a step of sending a connection information acquisition request to the external device; and if the first physical address and the second physical address are different, setting to prohibit the external device from establishing connection with the display device.

In some embodiments, further comprising:

if the equipment type is not the power amplifier equipment, setting an audio output channel of the display equipment as an audio player; and controlling the audio player to play the first audio data in response to the instruction of the user for playing the media assets.

In some embodiments, further comprising:

responding to an instruction input by a user for setting an audio return channel, and controlling a display to display an audio return channel setting interface; the audio return channel setting interface comprises audio return channel prompt information and controls corresponding to at least two external device interfaces; the audio return channel prompt information is used for representing an external device interface where the audio return channel is currently located; and responding to the selected operation of the user on the target control, and switching the audio return channel to the external device interface to be switched corresponding to the target control.

In some embodiments, after the audio backhaul channel is switched to the external device interface to be switched corresponding to the target control, the method further includes:

and acquiring a first transmission protocol version of the interface of the external device to be switched.

If the first transmission protocol version is the first version, controlling the display to display first prompt information; the first prompting information is used for prompting that the power amplifier equipment is connected to an external device interface to be switched and the media resource equipment is connected to an external device interface except the external device interface to be switched in the display equipment;

decoding the media asset data in response to the media asset data sent by the media asset device to obtain first video data and second audio data; and sending the second audio data to the power amplification equipment through the interface of the external device to be switched so as to enable the power amplification equipment to play the second audio data, and controlling the display to display the first video data.

In some embodiments, further comprising:

if the first transmission protocol version is the second version, controlling the display to display second prompt information; the second prompting information is used for prompting that the power amplifier equipment is connected to an interface of an external device to be switched and the media resource equipment is connected to the power amplifier equipment; the second version is higher than the first version;

Responding to the second video data sent by the power amplification equipment, and controlling the display to display the second video data; the second video data is obtained after the power amplifier device decodes the media data sent by the media device.

In some embodiments, after setting the audio output channel of the display device to be the audio return channel, the method further comprises:

acquiring a second transmission protocol version of the target external device interface; if the second transmission protocol version is the first version, controlling the display to display first prompt information; and if the second transmission protocol version is the second version, controlling the display to display second prompt information.

In some embodiments, further comprising:

in response to a user instruction to set the extended display identification data for the target external device interface, generating the extended display identification data based on the first physical address and setting the extended display identification data for the target external device interface; the expansion display identification data is used for enabling the external device to read the first physical address;

after the connection verification instruction is sent to the external device, if the connection verification information fed back by the external device is not received, the display is controlled to display third prompt information; the third prompting information is used for prompting the external equipment to be connected to an external device interface other than the target external device interface or canceling setting of the expansion display identification data for the target external device interface.

The same and similar parts of the embodiments in this specification are referred to each other, and are not described herein.

It will be apparent to those skilled in the art that the techniques of embodiments of the present invention may be implemented in software plus a necessary general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be embodied essentially or in parts contributing to the prior art in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method of the embodiments or some parts of the embodiments of the present invention.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions 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, characterized by comprising:

a display;

at least two external device interfaces configured to connect to an external device;

a controller configured to:

2. The display device of claim 1, wherein the controller executing the obtaining the device type of the external device is further configured to:

sending a connection information acquisition request to the external equipment through the target external device interface so that the external equipment feeds back connection information according to the connection information acquisition request, wherein the connection information comprises a logic address of the external equipment;

receiving connection information fed back by the external device, and analyzing the logic address from the connection information;

and acquiring the equipment type of the external equipment based on the logical address.

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

acquiring a first physical address of the target external device interface;

transmitting a connection verification instruction to the external device through the target external device interface, so that the external device feeds back connection verification information according to the connection verification instruction, wherein the connection verification information comprises a second physical address;

Receiving connection verification information fed back by the external equipment;

if the first physical address is the same as the second physical address, setting up a connection allowing the external device and the display device to be established, and executing a step of sending a connection information acquisition request to the external device;

and if the first physical address and the second physical address are different, setting to prohibit the external device and the display device from establishing connection.

4. The display device according to claim 1, further comprising: an audio player configured to play audio data;

the controller is further configured to:

if the equipment type is not the power amplifier equipment, setting an audio output channel of the display equipment as the audio player;

and responding to an instruction of a user for playing media assets, and controlling the audio player to play the first audio data.

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

responding to an instruction input by a user for setting an audio return channel, and controlling a display to display an audio return channel setting interface; the audio return channel setting interface comprises audio return channel prompt information and controls corresponding to the at least two external device interfaces; the audio return channel prompt information is used for representing an external device interface where the audio return channel is currently located;

And responding to the selected operation of the user on the target control, and switching the audio return channel to an external device interface to be switched corresponding to the target control.

6. The display apparatus of claim 5, wherein after the controller performs switching the audio backhaul channel to the external device interface to be switched corresponding to the target control, the controller is further configured to:

acquiring a first transmission protocol version of an external device interface to be switched;

if the first transmission protocol version is the first version, controlling a display to display first prompt information; the first prompt information is used for prompting that the power amplifier equipment is connected to the external device interface to be switched and the media resource equipment is connected to an external device interface other than the external device interface to be switched in the display equipment;

decoding the media asset data in response to the media asset data sent by the media asset device to obtain first video data and second audio data;

and sending the second audio data to power amplification equipment through the interface of the external device to be switched so as to enable the power amplification equipment to play the second audio data, and controlling a display to display the first video data.

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

if the first transmission protocol version is the second version, controlling a display to display second prompt information; the second prompting information is used for prompting that the power amplifier equipment is connected to the interface of the external device to be switched and the media resource equipment is connected to the power amplifier equipment; the second version is higher than the first version;

responding to second video data sent by the power amplification equipment, and controlling a display to display the second video data; the second video data are obtained after the power amplifier device decodes the media data sent by the media device.

8. The display device of claim 7, wherein the controller, upon performing setting an audio output channel of the display device as the audio return channel, is further configured to:

acquiring a second transmission protocol version of the target external device interface;

if the second transmission protocol version is the first version, controlling a display to display the first prompt information; and if the second transmission protocol version is the second version, controlling a display to display the second prompt information.

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

in response to a user instruction to set extended display identification data for a target external device interface, generating extended display identification data based on the first physical address and setting the extended display identification data for the target external device interface; the extended display identification data is used for enabling the external device to read the first physical address;

after the connection verification instruction is sent to the external equipment, if the connection verification information fed back by the external equipment is not received, the display is controlled to display third prompt information; the third prompting information is used for prompting that the external equipment is connected to an external device interface except the target external device interface or canceling setting of expansion display identification data for the target external device interface.

10. An audio playing method applied to a display device, the method comprising: