CN117896570A - Display device and video playing method - Google Patents

Abstract

Some embodiments of the application provide a display device and a video playing method. The display device obtains the connection state of the external device of the device interface. When the target device interface is connected with the target external equipment, the equipment type of the target external equipment is detected. And when the equipment type is the power amplifier equipment, acquiring a connection mode of the target external equipment and the target device interface. If the connection mode is cascade connection, the video playing channel is switched to a target device interface so as to display video data sent by the target external equipment. If the connection mode is non-cascade connection, the video playing channel is not switched. And when the external equipment is the power amplifier equipment, detecting the connection mode of the power amplifier equipment, and determining whether the power amplifier equipment can provide video content for the display equipment or not, thereby setting whether to switch the video playing channel or not so as to ensure the normal display of the content in the display.

Description

Display device and video playing method

Technical Field

The application relates to the technical field of display equipment, in particular to display equipment and a video 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 may control the display device to perform various functions, such as playing media assets. The display device may also be connected to an external device, and the display device may be provided with a device interface for connection to external devices, such as an external set-top box and a game device. Different external devices may provide different functions, for example, a set top box may provide various media channels to a display device, and a game device may provide various game programs. When the external device is connected to the device interface, power can be supplied to the device interface, and the display device can switch the video playing channel to the device interface so as to play video content provided by the external device.

The display device may also be connected to an audio playing device, such as a power amplifier device, which may play audio data of the display device. However, after the power amplifier device is connected to the device interface, power is also supplied to the device interface, so that the display device switches the video playing channel to the power amplifier device. However, the power amplifier device may not provide video data to the display device, which results in that the display device cannot display video content, and the use experience for the user is poor.

Disclosure of Invention

The application provides a display device and a video playing method, which are used for solving the problems that in the related art, after a power amplifier device is connected with a device interface, video data cannot be provided for the display device, so that the display device cannot display video content and the use experience of a user is poor.

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

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

detecting the equipment type of the target external equipment based on the detection that the target device interface is connected to the target external equipment;

when the equipment type is power amplifier equipment, acquiring a connection mode of the target external equipment and the target device interface;

if the connection mode is cascade connection, switching a video playing channel of the display equipment to the target device interface so as to enable a display to display video data sent by the target external equipment;

and if the connection mode is non-cascade connection, not switching the video playing channel of the display equipment.

In a second aspect, some embodiments of the present application provide a video playing method, which is applied to a display device, including:

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

detecting the equipment type of the target external equipment based on the detection that the target device interface is connected to the target external equipment;

When the equipment type is power amplifier equipment, acquiring a connection mode of the target external equipment and the target device interface;

if the connection mode is cascade connection, switching a video playing channel of the display equipment to the target device interface so as to enable a display to display video data sent by the target external equipment;

and if the connection mode is non-cascade connection, not switching the video playing channel of the display equipment.

According to the technical scheme, some embodiments of the application provide a display device and a video playing method. The display device obtains the connection state of the external device of the device interface. When the target device interface is connected with the target external equipment, the equipment type of the target external equipment is detected. And when the equipment type is the power amplifier equipment, acquiring a connection mode of the target external equipment and the target device interface. If the connection mode is cascade connection, the video playing channel is switched to a target device interface so as to display video data sent by the target external equipment. If the connection mode is non-cascade connection, the video playing channel is not switched. And when the external equipment is the power amplifier equipment, the connection mode of the power amplifier equipment is detected, and whether the power amplifier equipment can provide video content for the display equipment is determined, so that whether the video playing channel is switched is set, normal display of the content in the display is ensured, 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 illustrates a hardware configuration block diagram of a control device according to some embodiments;

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

FIG. 4 illustrates a software configuration diagram in a display device 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 illustrates a schematic diagram of a signal source interface in some embodiments;

FIG. 9 is a diagram of playback channel adaptation mode confirmation information in some embodiments;

FIG. 10 illustrates an interactive flow diagram of components of a display device in some embodiments;

FIG. 11 is a schematic diagram showing the hardware connection of a power amplifier device and a display device in some embodiments;

FIG. 12 is a schematic diagram of a display displaying first hint information in some embodiments;

FIG. 13 is a schematic diagram of a display displaying second 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 illustrating the connection of a media asset device, a power amplifier device, and a display device in some embodiments;

fig. 16 illustrates a video playback channel setup interface 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, a 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 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, the controller 250 may control the display 260 to display a user interface when the user controls the display device to power on. 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. 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.

The user can view the application programs already installed on the display device, i.e., the functions supported by the display device, through the application panel. It should be noted that, the application installed in the display device may be a system application or a third party application. And the user controls the display device to realize the corresponding function of the application program by starting the application program. Fig. 6 illustrates a schematic diagram of an application panel in some embodiments. As shown in fig. 6, the application panel includes three controls of "browser", "web media asset", and "video chat". Wherein the user may control the display device to open the browser application by clicking on the "browser" control. The user can perform corresponding operations in the browser, such as searching for media assets, etc. The user may click on the "web assets" control to view some web assets channels, including various assets resources provided in the network, using the display device. The user may click on the "video chat" control to conduct video chat using the display device.

In some embodiments, the display device 200 is further provided with a device interface 240, where the device interface 240 is used to connect to an external device, so that the display device 200 is connected to the external device, and the external device may be a media device, for example, a game 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 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 a display device 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 speaker.

Different external devices may support different functions. Some external devices are capable of providing application content, for example, a gaming device may provide multiple gaming applications. Some external devices can provide media content, for example, a set top box can provide media channel content, and a video recorder can provide local media. Still other external devices may support playing sound. For example, consider 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 device 200 may be connected to a power amplifier device through the device interface 240. The user may set the audio output channel of the display apparatus 200 to be connected to the device interface 240 of the power amplifier apparatus, and at this time, all audio data generated in the display apparatus 200 may be transmitted to the power amplifier apparatus through the 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.

It should be noted that, the power amplifier device may receive the audio data of the display device 200 to play sound, or may provide the video data to the display device 200 to enable the display device 200 to display the video data. I.e. the power amplifier device can perform two functions, playing the sound of the display device and providing video content to the display device.

In some embodiments, the display apparatus 200 may be provided with at least two device interfaces 240, such that the display apparatus 200 may be connected to multiple external devices simultaneously, such as a game apparatus and a set-top box simultaneously. The display apparatus 200 may set the playback channel as one of the device interfaces to display the playback content provided by the external apparatus to which the interface is connected.

The user may also choose to switch the playback channels of the display device 200. Fig. 8 illustrates a schematic diagram of a signal source interface in some embodiments. As shown in fig. 8, the signal sources may include video, USB, HDMI1, HDMI2, and VGA, each corresponding to one device interface. The user may select one of the signal sources, so that the device interface corresponding to the signal source is set as the current playing channel of the display apparatus 200. For example, the user may set the playback channel of the display device 200 to HDMI1, thereby causing the display device to display content provided by an external device connected at HDMI 1.

It should be noted that, when the user connects the external device to a certain device interface, in order to ensure that the content provided by the device is viewed, it is required to ensure that the playing channel of the display device is located at the current device interface, so that it may be necessary to manually switch the playing channel, which is relatively tedious. The display device may provide a playback channel automatic switching function in consideration of the use experience of the user. After the external device is connected to the device interface, an electrical signal can be generated at the device interface, and the display device confirms that the external device is connected to the device interface. After detecting that the device interface is connected with the external device, automatically switching a video playing channel for displaying video content into the device interface, thereby directly displaying the video content provided by the external device and realizing the effect of incoming call of the external device.

When the external device is a power amplifier device, after the power amplifier device is connected to the device interface, an electric signal is generated at the device interface, so that the display device switches the video playing channel to the interface. However, the power amplification device may at this time use only the function of playing the sound of the display device, and not provide video content to the display device. At this time, no video data is transmitted in the video playing channel, the display device cannot display video content, and the situation that the display black screen has no signal occurs. At this time, the user cannot watch normally, and the use experience is poor.

In order to solve the above problems, the display device provided in the embodiments of the present application may have a play channel adaptive adjustment function, and may automatically adjust a video play channel of the display device. The display device may be provided with a playback channel adaptation mode. After detecting that a certain device interface is connected with external equipment, the type of the external equipment can be judged first to determine whether the external equipment is power amplifier equipment or not. If the power amplifier device is connected, determining whether the power amplifier device can provide video data according to the connection mode of the power amplifier device and the device interface, so as to set whether to switch the video playing channel to the device interface. So as to ensure that the user can watch the video content normally and improve the use experience of the user.

In some embodiments, the user may send a play channel adaptive adjustment mode instruction to the display device by operating a designated key of the remote control. The corresponding relation between the playing channel self-adaptive adjustment mode instruction and the remote controller key is bound in advance in the actual application process. For example, a play channel self-adaptive adjustment mode key is set on the remote controller, when the user presses the key, the remote controller sends a play channel self-adaptive adjustment mode instruction to the controller, and at this time, the controller controls the display device to enter the play channel self-adaptive adjustment mode.

The play channel self-adaptive adjustment mode option can be set in the system UI interface of the display device, and when the user clicks the option, the display device can be controlled to enter or exit the play channel self-adaptive adjustment mode.

In some embodiments, to prevent the user from triggering the playback channel adaptive adjustment mode by mistake, when the controller receives the playback channel adaptive adjustment mode instruction, the controller may control the display to display playback channel adaptive adjustment mode confirmation information, so that the user performs secondary confirmation, and whether to control the display device to enter the playback channel adaptive adjustment mode. Fig. 9 is a schematic diagram of playback channel adaptation mode confirmation information in some embodiments.

FIG. 10 illustrates an interactive flow diagram of components of a display device in some embodiments, including the steps of:

s101, acquiring connection states of external equipment of at least two device interfaces;

s102, detecting the equipment type of the target external equipment based on the fact that the target device interface is detected to be connected to the target external equipment;

s103, when the equipment type is power amplifier equipment, acquiring a connection mode of the target external equipment and a target device interface;

s104, if the connection mode is cascade connection, switching a video playing channel of the display equipment to a target device interface so as to enable the display to display video data sent by the target external equipment; if the connection mode is non-cascade connection, the video playing channel of the display device is not switched.

In some embodiments, the controller 250 may obtain the connection status of the external devices of the plurality of device interfaces to detect whether any external devices are connected to the display device 200.

The controller 250 may detect each device interface in real time to determine whether the device interface has access to an external apparatus. The controller 250 may acquire the device connection status of the apparatus interface 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 HDMI also includes a hot plug (HotPlugDetect, HPD) pin, and the controller 250 may detect, through the HPD, whether an external device is connected to the HDMI interface.

When the external device is connected to the HDMI interface, 5V voltage can be provided to the HPD. Therefore, whether the external device is connected to the device interface can be determined by detecting whether the voltage at the device interface is 5V. In the embodiment of the present application, a device interface that accesses a certain target external device is referred to as a target device interface.

In some embodiments, the controller 250 may detect the device type of the target external device upon detecting that the target appliance interface is connected to the target external device.

The device type of the external device can be determined through the logic address of the external device. The logic address of each external device and the device type have a matching relationship and are preset. Each external device may store a logical address corresponding to its own device type, and the display device 200 also stores a matching relationship between the logical address and the device type. The matching relationship of the logical address and the device type may be in the form of a logical address list, as shown in the following table.

Wherein the logical address of the display device 200 is set to 0.1-15 represent logical addresses of external devices. For example, the audio playback device may be a power amplifier device comprising 2 logical addresses 1 and 2. The tuner is media information channel playing equipment, such as a set top box, and comprises 4 logic addresses 3, 6, 7 and 10. The video playing is local media playing and can correspond to media playback equipment, and the video playing comprises 2 logical addresses 4 and 8. The recorded video may correspond to a video recording device comprising 2 logical addresses 9 and 11.

Therefore, the logical address of the power amplifier device is 5. The display device 200 may detect whether the logical address of the target external device is 5 to confirm whether the target external device is a power amplifier device.

In some embodiments, the controller 250 may send the connection information acquisition request to the target external device through the target device interface. The connection information acquisition request is used for enabling the target external device to feed back the connection information according to the connection information acquisition request. The connection information comprises a logic address of the target external device.

After receiving the connection information obtaining request, the target external device can obtain its own logical address and generate connection information containing the logical address. The external device may transmit the connection information to the display device 200.

The controller 250 may receive the connection information fed back by the target external device, and parse the logical address of the target external device from the connection information.

The controller 250 may acquire the device type of the external device based on the logical address. The device type of the target external device can be queried according to the logical address list. And if the logic address of the target external device is 5, the target external device is the power amplifier device.

In some embodiments, the display device 200 may query whether the target external device is a power amplifier device.

The controller 250 may first obtain a logical address of the power amplifier device, which is referred to as a target logical address in the embodiment of the present application. From the logical address list, the controller 250 may determine that the logical address of the power amplifier device type is 5.

The controller 250 may generate a power amplifier device response instruction carrying the target logical address and send the power amplifier device response instruction to the target external device. The power amplifier device response instruction is used for enabling the target external device to feed back reply information when the logic address is the target logic address. For the power amplification device response instruction transmitted by the display device 200, only the active amplification device can respond to the instruction. The power amplifier device response instruction may be an instruction for ping a logical address of the power amplifier device.

The target external device can analyze the instruction and acquire the target logical address therein. If the logical address of the target external device is the same as the target logical address, the display device 200 is replied. If the logical address of the target external device and the target logical address are different, the display device 200 is not replied.

In response to the reply message sent by the target external device, the controller 250 may determine that the logical address of the target external device is 5, so that the device type of the target external device may be marked as a power amplifier device.

In some embodiments, the power amplifier device is provided with 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 display device 200 may also be provided with an ARC function to implement the ARC function of the power amplifier device.

The audio return channel may be provided in a device interface of the display apparatus 200, for example at some HDMI interface. When the HDMI interface is connected to the power amplifier device, 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. 11 shows a schematic diagram of hardware connection of the power amplifier device and the display device 200 in some embodiments. As shown in fig. 11, 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. Among them, the transmission process of command data belongs to single-wire serial communication, which is called CEC protocol.

It should be noted that the device interface may or may not be provided with an ARC function. If the device interface to which the power amplifier device is connected is not a device interface supporting the ARC function, the function of the power amplifier device cannot be fully exerted. For this purpose, the user may be prompted to access the power amplifier device to a device interface supporting the ARC function.

After detecting that the target external device is a power amplifier device, the controller 250 may acquire function information supported by the target device interface to determine whether the target device interface supports the audio backhaul channel function.

If the target device interface supports the audio backhaul channel function, the controller 250 may obtain a connection mode of the target external device and the target device interface to set the video playback channel.

If the target device interface does not support the audio backhaul channel function, the controller 250 may control the display 260 to display a first prompting message for prompting the user to switch the device interface to which the target external device is connected. FIG. 12 is a schematic diagram of display 260 displaying first prompt information in some embodiments. As shown in fig. 12, when the target device interface does not support the audio backhaul channel function, the controller 250 may acquire other device interfaces supporting the audio backhaul channel function and prompt the user to switch to the interface. For example, the target device interface is an HDMI 1 interface that does not support ARC functionality, but an HDMI 2 interface supports ARC functionality. The first prompting message may be "the current device interface does not support the ARC function, please access the power amplifier device to HDMI 2".

In some embodiments, when the target external device is a power amplifier device and the target device interface supports the audio backhaul channel function, the controller 250 may also detect whether the power amplifier device can operate normally.

Extended display identification data (Extended Display Identification Data, EDID) may be provided at the device interface to announce its capabilities to the external device, including supported resolution conditions, etc. 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 device interface. The external device may read the capability of the display device 200 and the physical address of the currently connected device interface according to the extended display identification data.

The controller 250 may obtain a physical address of the target device interface, referred to herein in embodiments as a first physical address.

The controller 250 may send the physical address obtaining instruction to the target external device through the target device interface, so that the target external device feeds back the second physical address according to the physical address obtaining instruction. The target external device may read the EDID information of the target device interface and parse the first physical address of the target device interface. In response to the physical address acquisition instruction, the target external device may transmit the read physical address to the display device 200.

The controller 250 may receive the second physical address sent by the external device, and detect whether the second physical address is the same as the first physical address.

If the first physical address and the second physical address are the same, it indicates that the target external device can read and parse the EDID normally, and at this time, the controller 250 can obtain the connection mode of the target external device and the target device interface, so as to set the video playing channel.

If the first physical address and the second physical address are different, the problem of the target external device is indicated. The target external device may not read the EDID, which indicates that the device has a security problem, or the target external device may not analyze the EDID or analyze error information, which indicates that the device has poor working performance or a problem occurs in the device. For this reason, the device cannot be used normally. The controller 250 may control the display 260 to display a second prompting message for prompting the user to replace the external device connected to the target device interface. FIG. 13 is a schematic diagram of display 260 displaying second hint information in some embodiments. As shown in fig. 13, the second prompt message may be "the current power amplifier device has a problem, please replace other power amplifier devices".

In some embodiments, when detecting that the device type of the target external device is a power amplifier device, the controller 250 may obtain a connection manner of the target external device and the target device interface. The power amplifier device and the display device 200 may adopt two connection modes, including cascade connection and non-cascade connection, for providing different functions.

The power amplification device may perform unidirectional data interaction with the display device 200 to play the sound of the display device 200. The audio backhaul channel function 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.

In the cascade mode, the power amplifying device may provide video content to the display device 200. The power amplifier device is provided with a plurality of interfaces, and can be simultaneously connected with the display device 200 and other media information devices. The media asset device may send media asset data to the power amplifier device. The power amplifier device can analyze the media resource device to obtain video data and audio data. The power amplification device may directly play the audio data and may transmit the video data to the display device 200 to cause the display device 200 to display the video data. At this time, the power amplification device plays a sound corresponding to the media data while providing the video data to the display device 200, and the display device 200 may display the video data.

It should be noted that, in addition to the audio data of the media data, some other sound may be generated in the display device 200, such as a system sound, etc. These sounds may be played by the display device 200 itself or by the power amplifier device.

When all the sounds are played by the power amplification device, the power amplification device sends video data to the display device 200, and the display device 200 also sends own audio data to the power amplification device to form bidirectional data transmission. When the power amplifier device only plays the audio data in the media data, the display device 200 will not send data to the power amplifier device, and only the power amplifier device will send the video data to the display device 200 for unidirectional data transmission.

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 1 interface and an HDMI 2 interface. The power amplifier device comprises an input interface and an output interface. The HDMI 1 interface is connected with an output interface of the power amplifier device, and the HDMI 2 interface is not connected with the device. The input interface of the power amplifier is connected with the media resource equipment. The media asset device sends the media asset data to the power amplifier device through an input interface of the power amplifier device, and the power amplifier device can decode the media asset data to obtain video data and audio data. The audio data is processed by the power amplifier device, so that the audio data is directly played. While the power amplifying device transmits the video data to the display device 200. The display device 200 may process video data and display the video data in the display 260.

In the non-cascade mode, the power amplifier device is only used to play audio data provided by the display device 200. The display device 200 is provided with a plurality of device interfaces, and can be connected with the media resource device and the power amplifier device at the same time. The media asset device may send media asset data to the display device 200. The display device 200 may parse the media asset device to obtain the video data and the audio data. The display device 200 may parse the video data and display the parsed video data in the display 260. It should be noted that some audio data such as system sound may also be generated in the display device 200. The display device 200 may transmit these audio data to the power amplification device together with the audio data in the media data. The power amplifier device can play all audio data.

In this connection, the display device 200 will send audio data to the power amplifier device, but the power amplifier device will not send video data to the display device 200.

Fig. 15 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. 15, the display device 200 includes an HDMI 1 interface and an HDMI 2 interface. The HDMI 1 interface of the display device 200 is connected with the media device, while the HDMI 2 interface is connected with the power amplifier device. The media asset device sends the media asset data to the display device 200 through the HDMI 1 interface, and the display device 200 may decode the media asset data to obtain video data and audio data. Wherein the video data is processed by the display device 200 itself so as to directly display the video data. Meanwhile, the display device 200 transmits the audio data generated by itself and the audio data obtained by decoding to the power amplifying device. The power amplifier device plays all audio data.

In some embodiments, the controller 250 may detect the manner in which the target external device interfaces with the target appliance.

The controller 250 may send an audio return channel initialization command to the target external device.

Because the sound is sent to the power amplifier device by the display device 200 when the non-cascade connection mode is adopted, the initialization interaction between the power amplifier device and the display device 200 is needed at the moment, and the sound can be played after the initialization of the power amplifier device is successful. When the non-cascade mode is adopted, the sound is sent to the power amplifier device by other media information devices, and when the display device 200 sends a command indicating the initialization of the power amplifier device, the power amplifier device does not respond to the command.

The power amplifier device responds to the instruction of the display device 200, and then feeds back the initialization result to the display device 200, so the controller 250 can detect whether the power amplifier device feeds back the initialization success information.

If no initialization success information fed back by the target external device is received, the controller 250 may mark the connection mode as cascade connection. If the initialization success information fed back by the target external device is received, the controller 250 may mark the connection mode as non-cascade connection.

In some embodiments, if the display device 200 and the power amplifier device are connected in cascade, this indicates that the power amplifier device will send video data to the display device 200 at this time. The controller 250 may switch the video play channel of the display apparatus 200 to the target device interface to cause the display 260 to display the video data transmitted by the target external device.

If the connection is not cascade connection, it means that the power amplifier device will not send video data to the display device 200 at this time. If the video play channel is switched to the target device interface, no picture is displayed in the display 260, and thus the controller 250 does not switch the video play channel of the display apparatus 200.

In some embodiments, when the device type of the target external device is not the power amplifier device, it indicates that the target external device will provide video content to the display device 200, and at this time, the video playing channel may be switched to the target device interface to display the content provided by the target external device.

However, it is considered that some devices are in standby state, and power is supplied to the device interface. At this time, if the video playing channel is switched over, the external device does not actually provide the video content, so that the display 260 cannot display the picture.

For this, the controller 250 may acquire the device status of the target external device.

If the target external device is in the on state, the video playing channel of the display device 200 is switched to the target device interface.

If the target external device is in a standby state, the video play channel of the display device 200 is not switched.

In some embodiments, the controller 250 may detect the voltage signal of the target device interface when acquiring the device state of the target external device.

If the voltage signal carries a jump signal, the controller 250 marks that the target external device is in a power-on state.

If the voltage signal does not carry a jump signal, the controller 250 marks that the target external device is in a standby state.

In some embodiments, the display device 200 includes an audio output interface for connecting an audio player, such as a speaker, that can play audio data so that the display device 200 can play sound by itself.

When the target external device is a power amplification device and the connection mode of the display device 200 and the target external device is cascade connection, the power amplification device plays the audio data of the media data. At this time, the system sound or the like generated in the display apparatus 200 may be played by the display apparatus 200 itself. The controller 250 may set the audio playing channel of the display apparatus 200 as an audio output interface so that the audio player plays the audio data of the display apparatus 200, and at this time, the target external apparatus plays the audio data of the media asset apparatus.

If the connection mode of the display device 200 and the target external device is not cascade connection, the audio data of the display device 200 can be played by the power amplification device. At this time, the controller 250 may set the audio play channel of the display apparatus 200 as the target device interface to cause the target external apparatus to play the audio data of the display apparatus 200.

In some embodiments, the display device 200 may be connected to a plurality of external devices simultaneously, for example, an HDMI interface and a VGA interface are connected to the external devices simultaneously. The controller 250 needs to set the video playback channel to one of the device interfaces.

The controller 250 may set the play channel according to a preset priority. For example, the preset priority may be: HDMI > VGA > USB. The display device 200 may detect all device interfaces currently connected to the external device and set a video playback channel according to the priority.

In some embodiments, the display device 200 may prompt the user to set the playback channel by himself when it is detected that a plurality of device interfaces are connected to the external device. The display device 200 may detect all device interfaces currently connected to the external device and display a video playback channel setting interface. Fig. 16 illustrates a video playback channel setup interface in some embodiments. As shown in fig. 16, the video play channel setting interface includes all device interfaces where the display apparatus 200 is currently connected to an external apparatus. The user may select one of the video play channels provided as the display device 200.

The embodiment of the application also provides a video playing method, which is applied to the display equipment and comprises the following steps:

step 101, obtaining the connection state of external equipment of at least two device interfaces;

102, detecting the equipment type of the target external equipment based on the detection that the target device interface is accessed to the target external equipment;

step 103, when the equipment type is power amplifier equipment, obtaining a connection mode of the target external equipment and a target device interface;

104, if the connection mode is cascade connection, switching a video playing channel of the display device to a target device interface so as to enable the display to display video data sent by the target external device; if the connection mode is non-cascade connection, the video playing channel of the display device is not switched.

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

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

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

and obtaining the target logic address of the power amplifier equipment. Transmitting a power amplifier equipment response instruction carrying a target logical address to target external equipment; the power amplifier device response instruction is used for enabling the target external device to feed back reply information when the logic address is the target logic address. And responding to the reply information sent by the target external equipment, and marking the equipment type of the target external equipment as the power amplifier equipment.

In some embodiments, when the device type is a power amplifier device, the method further includes:

and acquiring function information supported by the interface of the target device. And if the target device interface supports the audio return channel function, executing the step of acquiring the connection mode of the target external equipment and the target device interface. And if the target device interface does not support the audio return channel function, controlling the display to display first prompt information, wherein the first prompt information is used for prompting a user to switch the device interface connected with the target external equipment.

In some embodiments, if the target device interface supports audio backhaul channel functionality, comprising:

a first physical address of a target device interface is obtained. And sending the physical address acquisition instruction to the target external equipment through the target device interface so that the target external equipment feeds back the second physical address according to the physical address acquisition instruction. And receiving a second physical address sent by the external device.

And if the first physical address is the same as the second physical address, executing the step of acquiring the connection mode of the target external equipment and the target device interface. If the first physical address and the second physical address are different, the control display displays second prompt information, and the second prompt information is used for prompting a user to replace external equipment connected with the target device interface.

In some embodiments, when the device type is not a power amplifier device, the method further includes:

and acquiring the device state of the target external device. And if the target external equipment is in a starting state, switching the video playing channel of the display equipment to a target device interface. If the target external device is in a standby state, the video playing channel of the display device is not switched.

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

a voltage signal of a target device interface is detected.

If the voltage signal carries a jump signal, the target external equipment is marked to be in a starting state. If the voltage signal does not carry the jump signal, the target external equipment is marked to be in a standby state.

In some embodiments, after obtaining the connection mode of the target external device and the target apparatus interface, the method further includes:

If the connection mode is cascade connection, setting an audio playing channel of the display device as an audio output interface so that the audio player plays the audio data of the display device. If the connection mode is non-cascade connection, setting an audio playing channel of the display device as a target device interface so as to enable the target external device to play the audio data of the display device.

In some embodiments, obtaining a connection mode of the target external device and the target apparatus interface further includes:

and sending an audio return channel initialization instruction to the target external device. If the initialization success information fed back by the target external device is not received, the connection mode is marked as cascade connection. If the initialization success information fed back by the target external device is received, the connection mode is marked as non-cascade connection.

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 (10)

1. A display device, characterized by comprising:

a display;

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

A controller configured to:

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

detecting the equipment type of the target external equipment based on the detection that the target device interface is connected to the target external equipment;

when the equipment type is power amplifier equipment, acquiring a connection mode of the target external equipment and the target device interface;

if the connection mode is cascade connection, switching a video playing channel of the display equipment to the target device interface so as to enable a display to display video data sent by the target external equipment;

and if the connection mode is non-cascade connection, not switching the video playing channel of the display equipment.

2. The display device of claim 1, wherein the controller performs detecting a device type of the target external device, further configured to:

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

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

And acquiring the equipment type of the target external equipment based on the logic address.

3. The display device of claim 1, wherein the controller performs detecting a device type of the target external device, further configured to:

obtaining a target logic address of power amplifier equipment;

transmitting a power amplifier equipment response instruction carrying the target logical address to the target external equipment; the power amplifier equipment response instruction is used for enabling the target external equipment to feed back reply information when the logic address is the target logic address;

and responding to the reply information sent by the target external equipment, and marking the equipment type of the target external equipment as power amplifier equipment.

4. The display device of claim 1, wherein when the device type is a power amplifier device, the controller is further configured to:

acquiring function information supported by the target device interface;

if the target device interface supports the audio return channel function, executing the step of acquiring the connection mode of the target external equipment and the target device interface;

and if the target device interface does not support the audio return channel function, controlling a display to display first prompt information, wherein the first prompt information is used for prompting a user to switch the device interface connected with the target external equipment.

5. The display apparatus of claim 4, wherein if the target device interface supports audio backhaul channel functionality, the controller is further configured to:

acquiring a first physical address of the target device interface;

sending a physical address acquisition instruction to the target external device through the target device interface so that the target external device feeds back a second physical address according to the physical address acquisition instruction;

receiving a second physical address sent by the external device;

if the first physical address is the same as the second physical address, executing the step of acquiring the connection mode of the target external equipment and the target device interface;

and if the first physical address is different from the second physical address, controlling a display to display second prompt information, wherein the second prompt information is used for prompting a user to replace the external equipment connected with the target device interface.

6. The display device of claim 1, wherein when the device type is not a power amplifier device, the controller is further configured to:

acquiring the equipment state of the target external equipment;

if the target external equipment is in a starting state, switching a video playing channel of the display equipment to the target device interface;

And if the target external device is in a standby state, not switching the video playing channel of the display device.

7. The display device of claim 6, wherein the controller performing the obtaining the device state of the target external device is further configured to:

detecting a voltage signal of the target device interface;

if the voltage signal carries a jump signal, marking that the target external equipment is in a starting state;

and if the voltage signal does not carry a jump signal, marking that the target external device is in a standby state.

8. The display device according to claim 1, further comprising: an audio output interface configured to connect to an audio player, the audio player for playing audio data;

after obtaining the connection mode of the target external device and the target apparatus interface, the controller is further configured to:

if the connection mode is cascade connection, setting an audio playing channel of the display device as the audio output interface so that the audio player plays audio data of the display device;

and if the connection mode is non-cascade connection, setting an audio playing channel of the display equipment as the target device interface so that the target external equipment plays the audio data of the display equipment.

9. The display apparatus of claim 8, wherein the controller performing the obtaining the connection manner of the target external device and the target device interface is further configured to:

transmitting an audio return channel initialization instruction to the target external device;

if the initialization success information fed back by the target external device is not received, marking the connection mode as cascade connection;

and if the initialization success information fed back by the target external device is received, marking the connection mode as non-cascade connection.

10. A video playing method applied to a display device, the method comprising:

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

detecting the equipment type of the target external equipment based on the detection that the target device interface is connected to the target external equipment;

when the equipment type is power amplifier equipment, acquiring a connection mode of the target external equipment and the target device interface;

if the connection mode is cascade connection, switching a video playing channel of the display equipment to the target device interface so as to enable a display to display video data sent by the target external equipment;

And if the connection mode is non-cascade connection, not switching the video playing channel of the display equipment.