CN113194347A

CN113194347A - Display device and multi-channel image content synchronization method

Info

Publication number: CN113194347A
Application number: CN202010036564.6A
Authority: CN
Inventors: 王天功; 徐善亮; 孙显卓; 谭少峰
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2021-07-30

Abstract

The application provides a display device and a method for synchronizing image contents of multiple channels, and belongs to the technical field of display devices. The application provides a display device, detect signal source equipment through the multichannel and prepare to connect the back, send the connecting signal to signal source equipment through the multichannel, wherein, the connecting signal on the at least two tunnel in the multichannel is sent simultaneously, signal source equipment passes through at least two tunnel simultaneously to display device output image content according to the connecting signal, so that display device can receive image content through at least two tunnel simultaneously, reduce the phenomenon that the time that the multichannel of display device received image content is asynchronous, improve the problem of the dislocation of image concatenation that leads to because of the time that the multichannel received image content is asynchronous among the correlation technique.

Description

Display device and multi-channel image content synchronization method

Technical Field

The present disclosure relates to the field of display devices, and in particular, to a display device and a method for synchronizing image contents of multiple channels.

Background

At present, image content can be transmitted between a signal source device and a display device through multiple channels. For example, the set top box and the television set may transmit image content through a four-way HDMI (High Definition Multimedia Interface) channel. As shown in fig. 1, the set-top box may divide an image into four sub-images, and then transmit the four sub-images to the tv through four HDMI channels (HDMI1, HDMI2, HDMI3, and HDMI4), and the tv splices the four sub-images received through the four HDMI channels in sequence, and displays the spliced whole image picture through the display screen.

In the related art, the television is interacted with the set top box through four HDMI channels respectively. Before sending image content to a television, a set-top box sends a state signal ready for connection to the television through four HDMI channels, the television respectively detects the state signal on each channel according to the sequence of HDMI1, HDMI2, HDMI3 and HDMI4, when the state signal ready for connection of the set-top box is detected through any channel, the connection signal is sent to the set-top box through the channel, so that the set-top box outputs a corresponding sub-image to the television through the channel according to the connection signal, and the television receives the sub-image transmitted by the channel, namely the sub-image is displayed through a display screen. The sub-images transmitted by each channel are separated, and the four sub-images are displayed on the display screen in sequence.

Because the time of detecting the state signal in each channel may not be synchronous, a certain time difference may exist, and the time of displaying the four sub-images may not be synchronous, which may easily cause the image stitching dislocation shown in fig. 2.

Disclosure of Invention

The application provides a display device and a multi-channel image content synchronization method, which are used for relieving the problem that image splicing dislocation is easy to occur in the related technology.

In a first aspect, in a display device provided in an embodiment of the present application, the display device is connected to a signal source device through a multi-channel, where the multi-channel is used to implement image content transmission between the signal source device and the display device; the display device includes:

the processor is used for sending a connection signal to the signal source equipment through the multi-channel after detecting that the signal source equipment is ready to be connected through the multi-channel so that the signal source equipment outputs image content to the display equipment through the multi-channel according to the connection signal; wherein, the connection signals on at least two paths of the multi-path are sent simultaneously;

and the display screen is used for displaying an integral image obtained by splicing the image contents received by the multiple channels.

The display device provided by the embodiment of the application, after the signal source device is detected to be ready to be connected through the multi-channel, the connection signal is sent to the signal source device through the multi-channel, wherein the connection signal on at least two channels in the multi-channel is sent simultaneously, the signal source device outputs image content to the display device through at least two channels simultaneously according to the connection signal, so that the display device can receive the image content through at least two channels simultaneously, the phenomenon of multiple channels that the multi-channel of the display device receives the image content in asynchronous time is reduced, and the problem of image splicing dislocation caused by the asynchronous time that the multi-channel receives the image content in the related technology is solved.

In one possible implementation, the processor is further configured to:

and simultaneously sending connection signals to the signal source equipment through the multipath channel.

The display device provided by the embodiment of the application sends the connection signal to the signal source device through the multiple channels simultaneously, so that the signal source device outputs the image content to the display device through each channel simultaneously according to the connection signal, the display device can receive the image content through each channel simultaneously, the phenomenon that the multiple channels of the display device receive the image content in asynchronous time is avoided, and the image splicing dislocation caused by the asynchronous time of the multiple channels receiving the image content is prevented.

In one possible implementation, the processor is further configured to:

if a state signal ready for connection of the signal source equipment is detected through any one of the multiple channels, setting a state flag corresponding to the channel which detects the state signal to be in a connected state;

and if the state marks corresponding to the multiple channels are monitored to be in a connected state, sending a connection signal to the signal source equipment through the multiple channels at the same time.

The display device provided by the embodiment of the application sets the corresponding status flag for each channel, and when a status signal to be connected by the signal source device is detected by any channel, the status flag corresponding to the channel in which the status signal is detected is set to be in a connected state, and if the status flags corresponding to multiple channels are all in the connected state, the connection signal is simultaneously sent to the signal source device through the multiple channels, so that the time for sending the connection signal to the signal source device can be determined in an easy-to-implement manner, and the connection signal is simultaneously sent to the signal source device through the multiple channels.

In one possible implementation, the processor is further configured to:

and when the multi-channel communication device is disconnected with the signal source equipment, setting the state mark corresponding to each channel in the multi-channel communication device to be in an unconnected state.

According to the display device provided by the embodiment of the application, when the display device is disconnected from the signal source device, the state flag corresponding to each path of the multi-path channel is set to be in an unconnected state, so that the situation that the signal source device is judged to be ready for connection by mistake when the display device is connected with the signal source device again is avoided.

In one possible implementation, the processor is further configured to:

and simultaneously setting high level for the hot plug detection HPD signal corresponding to each channel so as to simultaneously send a connection signal to the signal source equipment through each channel.

According to the display device provided by the embodiment of the application, the hot plug detection HPD signals corresponding to each channel are simultaneously set to be high level, so that the connection signals are simultaneously sent to the signal source device through the multi-channel, and the connection signals sent by each channel can be ensured to reach the signal source device simultaneously.

In a second aspect, an embodiment of the present application provides a method for synchronizing image content of multiple channels, where the multiple channels are used to implement image content transmission between a signal source device and a display device, and the method includes:

after detecting that signal source equipment is ready to be connected through the multi-channel, sending a connection signal to the signal source equipment through the multi-channel so that the signal source equipment outputs image content to the display equipment through the multi-channel according to the connection signal; wherein, the connection signals on at least two paths of the multi-path are sent simultaneously;

and displaying the whole image picture obtained by splicing the image contents received by the multi-channel through a display screen.

In one possible implementation manner, sending a connection signal to a signal source device through the multi-channel includes:

In one possible implementation, the method further includes:

and if the state marks corresponding to the multiple channels are monitored to be in a connected state, executing a step of sending connection signals to signal source equipment through the multiple channels at the same time.

In one possible implementation, the method further includes:

In a possible implementation manner, the sending a connection signal to a signal source device through the multiple channels simultaneously includes:

In a third aspect, an embodiment of the present application provides a display device, including:

a signal transmitting part, configured to transmit a connection signal to a signal source device through a multi-channel after detecting that the signal source device is ready for connection through the multi-channel, so that the signal source device outputs image content to the display device through the multi-channel according to the connection signal; wherein, the connection signals on at least two paths of the multi-path are sent simultaneously;

and the image display part is used for displaying an integral image picture obtained by splicing the image contents received by the multi-channel through a display screen.

In an optional embodiment, the signal transmitting unit is further configured to:

In an alternative embodiment, the display apparatus may further include an identification setting part for:

the signal transmitting unit is further configured to: and if the state marks corresponding to the multiple channels are monitored to be in a connected state, executing a step of sending connection signals to signal source equipment through the multiple channels at the same time.

In an alternative embodiment, the display device may further include an identifier removing portion 91, and may be further configured to:

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method for synchronizing image contents of multiple channels in any of the second aspects are implemented.

For technical effects brought by any one implementation manner in the second aspect to the fourth aspect, reference may be made to technical effects brought by a corresponding implementation manner in the first aspect, and details are not described here.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic diagram of an image transmission scheme;

FIG. 2 is a schematic diagram illustrating a phenomenon of image stitching dislocation in the prior art;

fig. 3 is an application scenario diagram of a multi-channel image content synchronization method according to an embodiment of the present application;

fig. 4 is a block diagram of a hardware configuration of a display device according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram illustrating a method for synchronizing image contents of multiple channels according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present application;

fig. 7 is a flowchart of a method for synchronizing image contents of multiple channels according to an embodiment of the present disclosure;

fig. 8 is a block diagram of a display device according to an embodiment of the present disclosure;

fig. 9 is a block diagram of another display device according to an embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Some of the words that appear in the text are explained below:

1. the term "display device" in the embodiments of the present application refers to a device for displaying image content provided by a source device. Such as a television, a video player, a computer display, etc.

2. The term "signal source device" in the embodiments of the present application refers to a device that provides image content for a display device. Such as a set-top box, a video card, etc.

The application scenario described in the embodiment of the present application is for more clearly illustrating the technical solution of the embodiment of the present application, and does not form a limitation on the technical solution provided in the embodiment of the present application, and it can be known by a person skilled in the art that with the occurrence of a new application scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems. In the description of the present application, the term "plurality" means two or more unless otherwise specified.

In the related art, the display device may interact with the signal source device through multiple image content transmission channels, respectively. Herein, the image content transmission channel is simply referred to as a channel, and each channel of the multiple channels is independent of each other. The signal source device may divide the image into a plurality of sub-images, one sub-image being transmitted for each channel. The signal source equipment respectively transmits the subimages to the television through the multi-channel, the television sequentially splices the subimages received through the multi-channel, and the spliced integral image picture is displayed through the display screen.

The method comprises the steps that before sending image content to display equipment, signal source equipment sends state signals ready for connection to the display equipment through multiple channels, the display equipment respectively detects the state signals on each channel according to the arrangement sequence of the channels, when the state signals ready for connection of the signal source equipment are detected through any channel, the connection signals are sent to the signal source equipment through the channel, so that the signal source equipment outputs corresponding sub-images to the display equipment through the channel according to the connection signals, and a television receives the sub-images transmitted by the channel, namely the sub-images are displayed through a display screen.

The sub-images transmitted by each channel are separated, and the four sub-images are displayed on the display screen in sequence. Because the time of detecting the state signal in each channel may not be synchronous, a certain time difference may exist, and the time of displaying the four sub-images may not be synchronous, which may easily cause the image stitching dislocation shown in fig. 2.

In order to solve the problem that image splicing dislocation is easy to occur in the related art, the embodiment of the application provides a display device and a multi-channel image content synchronization method, the display device sends a connection signal to a signal source device through a multi-channel after detecting that the signal source device is ready to be connected through the multi-channel, wherein the connection signals on at least two channels in the multi-channel are sent simultaneously, the signal source device outputs image content to the display device through at least two channels simultaneously according to the connection signal, so that the display device can receive the image content through at least two channels simultaneously, the phenomenon that the time for receiving the image content by the multi-channel of the display device is asynchronous is reduced, and the problem of image splicing dislocation caused by the asynchronous time for receiving the image content by the multi-channel in the related art is solved.

Fig. 3 shows a schematic view of an application scenario of the embodiment of the present application, taking a set top box and a television as examples. In other application scenarios of the present application, the display device may also be a display, and the signal source device may also be a display card.

As shown in fig. 3, the tv set 100 and the set-top box 200 are connected by a data line 300. The set-top box 200 transmits the image to be displayed to the television 100 through the data line 300 for display. In general, the data line 300 includes multiple HDMI channels, and the set-top box 200 may divide an image into multiple sub-images and transmit the sub-images to the television 100 through the multiple HDMI channels, each HDMI channel being used for transmitting one of the sub-images obtained by the division. The television 100 sequentially splices a plurality of sub-images received through the multi-path HDMI channel, and displays the spliced whole image picture through the display screen.

The tv set 100 interacts with the set-top box 200 through multiple HDMI channels, respectively. Before sending the image content to the television 100, the set-top box 200 first sends a state signal ready for connection to the television 100 through each HDMI channel, and after the television 100 detects that the signal source device is ready for connection through the multi-channel, the set-top box 200 sends a connection signal through the multi-channel, so that the set-top box 200 outputs the image content to the television 100 through the multi-channel according to the connection signal.

In this embodiment, the connection signals on at least two channels of the multiple channels are sent simultaneously, and the set-top box 200 outputs the image content to the television 100 through the at least two channels simultaneously according to the connection signals, so that the television 100 can receive the image content through the at least two channels simultaneously, the phenomenon that the multiple channels of the television 100 receive the image content at asynchronous time is reduced, and the problem of image splicing dislocation caused by the asynchronous time of the multiple channels receiving the image content in the related art is solved.

Fig. 4 shows a block diagram of a hardware configuration of a television 100 according to an embodiment of the present application. As shown in fig. 4, the television 100 includes a processor 110, a tuning demodulator 120, a communication interface 130, a detector 140, an input/output interface 150, a memory 160, an audio output 170, a display screen 180, a user input interface 190, a power supply, and the like.

The processor 110 controls the operation of the television 100 and responds to user operations through various software control programs stored in the memory 160.

The processor 110 may include a plurality of processor units, such as a graphics processor, a CPU processor, a video processor, an audio processor, and so forth.

A graphics processor for generating various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The graphic processor includes an operator for performing operations by receiving various interactive instructions input by a user, and displays various objects according to display attributes. The graphic processor further includes a renderer for generating various objects based on the operator and displaying the rendered results on the display screen 180.

A CPU processor for executing instructions of an operating system and application programs stored in memory 160. And executing various application programs, data and contents according to various interactive instructions received from the outside so as to finally display and play various audio and video contents.

In some exemplary embodiments, the CPU processor may include a plurality of processors. The plurality of processors may include one main processor and a plurality of or one sub-processor. The main processor is used to perform some operations of the television 100 in the pre-power-up mode and/or operations to display a picture in the normal mode. A plurality of or a sub-processor for performing an operation in a standby mode or the like.

The video processor is configured to perform video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis on the received external video signal according to a standard codec protocol of the input signal, so as to obtain a signal that can be directly displayed or played on the television 100.

Illustratively, the video processor includes a demultiplexing module, a video decoding module, an image synthesizing module, a frame rate conversion module, a display formatting module, and the like.

The demultiplexing module is configured to demultiplex an input audio/video data stream, for example, when MPEG-2 is input, the demultiplexing module demultiplexes the MPEG-2 to obtain a corresponding video signal and an audio signal.

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

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

The frame rate conversion module is used for converting the frame rate of the input video signal, such as converting the 60Hz frame rate into the 120Hz frame rate or the 240Hz frame rate, and is usually implemented by using, for example, an interpolation frame method.

And the display formatting module is used for receiving the video output signal after the frame rate conversion, and changing the format of the signal to be in accordance with the display format, such as outputting an RGB data signal.

And the audio processor is used for decompressing, decoding, denoising, digital-to-analog conversion, amplification and the like of the received external audio signal according to the standard coding and decoding protocol of the input signal to obtain the sound signal which can be played in the loudspeaker.

In other exemplary embodiments, the video processor may be comprised of one or more chips. The audio processor may also be comprised of one or more chips.

In other exemplary embodiments, the video processor and the audio processor may be separate chips or may be integrated with the processor 110 in one or more chips.

The processor 110 may control the overall operation of the television 100. For example: in response to receiving a user command for selecting a UI object to be displayed on the display screen 180, the processor 110 may perform an operation related to the object selected by the user command.

Wherein the object may be any one of selectable objects, such as a hyperlink or an icon. Operations related to the selected object, such as: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to the icon. The UI object user command may be a command input through various input devices (e.g., a mouse, a keyboard, a touch panel, etc.) connected to the television set 100 or a voice command corresponding to a voice spoken by the user.

The memory 160 is used to store various software modules that drive the television set 100. Such as: various software modules stored in the memory 160, including: the system comprises a basic module, a detection module, a communication module, a display control module, a browser module, various service modules and the like.

The basic module is a bottom layer software module for maintaining signal communication between hardware in the television 100 and sending processing and control signals to an upper layer module. The detection module is used for collecting various information from various sensors or user input interfaces, and performing digital-to-analog conversion and analysis management.

For example: the voice recognition module comprises a voice analysis module and a voice instruction database module. The display control module is used for controlling the display screen 180 to display image content, and playing multimedia image content, UI interface and other information. And the communication module is used for carrying out control and data communication with external equipment. And the browser module is used for executing a module for performing data communication by the browsing server. And the service module is used for providing various services and modules of various application programs.

Meanwhile, the memory 160 is also used to store received external data and user data, images of various items in various user interfaces, and visual effect maps of the focus object, etc.

The memory 160 may also include memory modules such as RAM, ROM, etc. The ROM is used to store instructions for various system boots. If the power of the television 100 is started when a power-on command is received, the CPU processor executes a system start command in the ROM and copies the operating system stored in the memory 160 to the RAM, so that the operating system starts to be started. After the operating system is started, the CPU processor copies the various application programs in the memory 160 to the RAM, and then starts running the various application programs that have been started.

The display screen 180 is configured to display an image received by the television 100, and is further configured to display a user operation UI interface generated in the television 100 and used to control the television 100. The display screen 180 includes a display component for presenting a picture, and a driving component for driving image display. The displayed image picture may be image content from a set-top box, or may be various broadcast signals receivable via a wired or wireless communication protocol. Alternatively, various image contents received from the network communication protocol and sent from the network server side can be displayed.

The communication interface 130 is a component for communicating with an external device or an external server according to various communication protocol types. For example: the communication interface 130 may be a Wifi chip, a bluetooth communication protocol chip, a wired ethernet communication protocol chip, or other network communication protocol chips or near field communication protocol chips, and an infrared receiver (not shown in the figure).

The television set 100 can establish a connection with an external control apparatus through the communication interface 130 to transmit and receive a control signal and a data signal. And an infrared receiver which can be used as an interface for receiving infrared control signals of a control device (such as an infrared remote controller).

The detector 140 is used for collecting signals of the external environment or interaction with the outside of the television 100. The detector 140 includes a light receiver, and may be a sensor for collecting the intensity of ambient light, and may adaptively change display parameters by collecting the ambient light, and the like.

The detector 140 may further include an image collector, such as a camera, etc., which may be used to collect external environment scenes, collect attributes of the user or interact gestures with the user, adaptively change display parameters, and recognize gestures of the user, so as to implement an interaction function with the user.

In some other exemplary embodiments, the detector 140 may further include a temperature sensor or the like, and the television 100 adaptively adjusts the display color temperature of the image by sensing the ambient temperature. For example, when the ambient temperature is higher, the tv set 100 can adjust the color temperature of the displayed image to be a cool tone, or when the ambient temperature is lower, the tv set 100 can adjust the color temperature of the displayed image to be a warm tone.

In some other exemplary embodiments, the detector 140 may further include a sound collector or the like, such as a microphone, which may be used for receiving the sound of the user, such as a voice signal of a control instruction of the user for controlling the television 100; or may be used to capture ambient sound to identify the type of ambient scene so that the television 100 can adaptively adapt to ambient noise.

The input/output interface 150 is configured to receive data such as a video signal, an audio signal, or a command instruction from an external device when the processor 110 controls data transmission between the smart tv 100 and the external device.

The input/output interface 150 includes, but is not limited to, the following interfaces: an HDMI (High Definition Multimedia Interface) Interface 151, an analog or data HDMI component input Interface, a composite video input Interface, a Universal Serial Bus (USB) input Interface, an RGB port (not shown), and the like.

In some other exemplary embodiments, the input/output interface 150 may also be a composite input/output interface formed by the above-mentioned plurality of interfaces.

The tuner demodulator 120 receives the broadcast television signal in a wired or wireless receiving manner, performs modulation and demodulation processing such as amplification, mixing, resonance, and the like on the broadcast television signal, and may demodulate a television audio/video signal carried in a television channel frequency selected by a user and a television Program Guide (EPG) signal from a plurality of wireless or wired broadcast television signals.

The tuner demodulator 120, controlled by the processor 110, demodulates the user-selected television signal frequency and the television signal carried by the frequency in response to the user selection.

Depending on the broadcast system of the television signal, there are many ways for the tuner demodulator 120 to receive the signal, such as: terrestrial broadcasting, cable broadcasting, satellite broadcasting, internet broadcasting, or the like; the modulation mode of the signal received by the tuning demodulator 120 may be a digital modulation mode or an analog modulation mode according to the modulation type; the signal received by the tuner demodulator 120 may be an analog signal or a digital signal, depending on the type of television signal being received.

In other exemplary embodiments, the modem 120 may be disposed in an external device, such as an external set-top box. In this way, the set-top box 200 outputs television audio/video signals after modulation and demodulation, and inputs the television audio/video signals into the television 100 through the input/output interface 150.

In the embodiment of the present application, the HDMI interface 151 of the input/output interface 150 of the television 100 is connected to the set-top box 200. The HDMI interface is a fully digital video and audio transmission interface, and can transmit uncompressed audio and video signals. The HDMI can be used for set-top boxes, DVD players, personal computers, televisions, game hosts, comprehensive amplifiers, digital stereos, televisions and other equipment.

The HDMI interface 151 includes a plurality of connecting assemblies with multiple channels, each HDMI channel corresponds to a set of independent connecting assemblies, and each connecting assembly corresponding to each HDMI channel includes at least one channel control chip. In the following embodiments, four HDMI channels will be taken as an example for explanation, in practical applications, the number of channels may be more or less than four, and the number of channels is not limited in the present application.

The set top box 200 may receive the high definition signal transmitted by the remote signal source, perform decoding processing, output an image signal, and transmit the image signal to the television 100 through the HDMI signal line for display. The set-top box 200 may divide an image into four sub-images, for example, for an image with a resolution of 7680 × 4320 pixels, the set-top box 200 may divide the image into four sub-images of 3840 × 2160 pixels, which are transmitted to the television 100 via four-way HDMI channels, respectively. The television 100 sequentially splices the four sub-images received through the four HDMI channels, and displays the entire image obtained by splicing through the display screen 180.

Before sending image content to the television 100, the set-top box 200 sends a state signal ready for connection to the television 100 through each HDMI channel, and after detecting that a signal source device is ready for connection through four channels, the television 100 sends a connection signal to the set-top box 200 through the four channels, so that the set-top box 200 outputs the image content to the television 100 through the four channels according to the connection signal. The connection signals on at least two channels in the four channels are sent simultaneously, and the at least two channels are preset at least two channels.

For example, assume that four HDMI channels are an HDMI1 channel, an HDMI2 channel, an HDMI3 channel, and an HDMI4 channel, respectively. In some embodiments, it may be set that the HDMI1 channel and the HDMI2 channel transmit connection signals at the same time, and the HDMI3 channel and the HDMI4 channel transmit connection signals at the same time; alternatively, it may be set that the HDMI1 channel and the HDMI3 channel transmit connection signals at the same time, and the HDMI2 channel and the HDMI4 channel transmit connection signals at the same time; alternatively, it may be set that the HDMI1 channel and the HDMI4 channel transmit connection signals at the same time, and the HDMI2 channel and the HDMI3 channel transmit connection signals at the same time.

In other embodiments, the HDMI1 channel, the HDMI2 channel, and the HDMI3 channel may be set to transmit connection signals at the same time; alternatively, the HDMI1 channel, the HDMI2 channel, and the HDMI4 channel may be set to transmit connection signals at the same time; alternatively, the HDMI1 channel, the HDMI4 channel, and the HDMI3 channel may be set to transmit connection signals at the same time; alternatively, it may be set that the HDMI4 channel, the HDMI2 channel, and the HDMI3 channel transmit connection signals at the same time.

In some embodiments, it may be set that the HDMI1 channel, the HDMI2 channel, the HDMI3 channel, and the HDMI4 channel transmit connection signals at the same time.

The following describes an implementation process of the embodiment of the present application, taking as an example that the HDMI1 channel and the HDMI2 channel simultaneously transmit connection signals, and the HDMI3 channel and the HDMI4 channel simultaneously transmit connection signals.

TABLE 1

As shown in table 1, status FLAGs may be set for each HDMI1 channel at set locations in memory 160, e.g., status FLAG for HDMI1 channel is set to FLAG1, status FLAG for HDMI2 channel is set to FLAG2, status FLAG for HDMI3 channel is set to FLAG3, and status FLAG for HDMI4 channel is set to FLAG 4. Each status flag may occupy one byte for identifying the status of the corresponding HDMI channel. Illustratively, a connected state may be represented by 0 and an unconnected state may be represented by 1.

The television 100 recognizes the HDMI1 channel, determines whether a status signal that the signal source device is ready to connect is detected through the HDMI1 channel, sets the status FLAG1 corresponding to the HDMI1 channel to a connected state if the status signal that the signal source device is ready to connect is detected, and does not set the status FLAG1 corresponding to the HDMI1 channel if the status signal that the signal source device is ready to connect is not detected.

Specifically, when the set-top box 200 is ready to be connected to the television 100, a ready-to-connect status signal, which is a +5V level signal, is transmitted to the television 100 via each HDMI1 channel. The television 100 detects whether the connection status pin corresponding to the HDMI1 channel is at a high level or a low level, and determines whether a status signal indicating that the signal source device is ready to be connected is detected. If the television 100 detects that the +5V level signal exists in the connection status pin corresponding to the HDMI1 channel, it determines that the status signal that the signal source device is ready to be connected is detected through the HDMI1 channel.

Similarly, the television 100 recognizes the HDMI2 channel, determines whether a status signal indicating that the signal source device is ready to be connected is detected through the HDMI2 channel, and sets the status FLAG2 corresponding to the HDMI2 channel to a connected status if the status signal indicating that the signal source device is ready to be connected is detected.

The television 100 recognizes the HDMI3 channel, determines whether a status signal that the signal source device is ready to connect is detected through the HDMI3 channel, and sets a status FLAG3 corresponding to the HDMI3 channel to a connected state if a status signal that the signal source device is ready to connect is detected. The television 100 recognizes the HDMI4 channel, determines whether a status signal that the signal source device is ready to connect is detected through the HDMI4 channel, and sets a status FLAG4 corresponding to the HDMI4 channel to a connected state if a status signal that the signal source device is ready to connect is detected.

If the television 100 monitors that the status FLAGs FLAG1 corresponding to the HDMI1 channel and the status FLAGs FLAG2 corresponding to the HDMI2 channel are both in a connected state, a connection signal is simultaneously sent to the signal source device through the HDMI1 channel and the HDMI2 channel.

For example, the HPD (Hot-Plug Detection) signals corresponding to the HDMI1 channel and the HDMI2 channel are simultaneously set to high level. Specifically, each HDMI channel corresponds to one HPD signal pin, and by outputting a high-level enable signal to the HPD signal pin corresponding to a certain HDMI channel, the HPD signal corresponding to the HDMI channel can be set to a high level. The set-top box 200 simultaneously receives the high level of the HPD signal through the HDMI1 channel and the HDMI2 channel, and simultaneously outputs the sub-images to the television through the HDMI1 channel and the HDMI2 channel.

Similarly, if the television 100 detects that the status FLAG3 corresponding to the HDMI3 channel and the status FLAG4 corresponding to the HDMI4 channel are both in a connected state, a connection signal is simultaneously sent to the set top box 200 through the HDMI3 channel and the HDMI4 channel. For example, when the HPD signals corresponding to the HDMI3 channel and the HDMI4 channel are simultaneously set to a high level, and the set-top box 200 simultaneously receives the high level of the HPD signal through the HDMI3 channel and the HDMI4 channel, sub-images are simultaneously output to the television through the HDMI3 channel and the HDMI4 channel.

In the above embodiment, the connection signals on at least two HDMI channels in the multiple HDMI channels are sent simultaneously, and the set-top box 200 outputs the image content to the television through the at least two HDMI channels simultaneously according to the connection signals, so that the television 100 can receive the image content through the at least two HDMI channels simultaneously, the phenomenon that the time for receiving the image content by the multiple HDMI channels of the television 100 is not synchronous is reduced, and the problem of image splicing dislocation caused by the asynchronous time for receiving the image content by the multiple HDMI channels in the related art is solved.

In another embodiment, it may be set that the HDMI1 channel, the HDMI2 channel, the HDMI3 channel, and the HDMI4 channel transmit connection signals at the same time, as shown in table 2.

TABLE 2

As shown in fig. 5, the television set 100 recognizes the HDMI1 channel, determines whether a status signal that the signal source device is ready to connect is detected through the HDMI1 channel, and sets a status FLAG1 corresponding to the HDMI1 channel to a connected state if a status signal that the signal source device is ready to connect is detected.

Then, the television set 100 recognizes the HDMI2 channel, determines whether a status signal that the signal source device is ready to connect is detected through the HDMI2 channel, and sets the status FLAG2 corresponding to the HDMI2 channel to a connected state if the status signal that the signal source device is ready to connect is detected.

Then, the television set 100 recognizes the HDMI3 channel, determines whether a status signal that the signal source device is ready to connect is detected through the HDMI3 channel, and sets the status FLAG3 corresponding to the HDMI3 channel to a connected state if the status signal that the signal source device is ready to connect is detected.

Then, the television set 100 recognizes the HDMI4 channel, determines whether a status signal that the signal source device is ready to connect is detected through the HDMI4 channel, and sets the status FLAG4 corresponding to the HDMI4 channel to a connected state if the status signal that the signal source device is ready to connect is detected.

If the television 100 monitors that the state FLAG1 corresponding to the HDMI1 channel, the state FLAG2 corresponding to the HDMI2 channel, the state FLAG3 corresponding to the HDMI3 channel and the state FLAG4 corresponding to the HDMI4 channel are all in a connected state, a connection signal is simultaneously sent to the set top box 200 through the HDMI1 channel, the HDMI2 channel, the HDMI3 channel and the HDMI4 channel. The set-top box 200 simultaneously receives the high level of the HPD signal through the HDMI1 channel, the HDMI2 channel, the HDMI3 channel, and the HDMI4 channel, and simultaneously outputs the sub-images to the television through the HDMI1 channel, the HDMI2 channel, the HDMI3 channel, and the HDMI4 channel. The television 100 receives the sub-images through the four HDMI channels at the same time, sequentially splices the received four sub-images, and displays the spliced whole image picture through the display screen 180.

For example, the television 100 sequentially splices four sub-images including 3840 × 2160 pixels to obtain an image including 7680 × 4320 pixels, and displays the image including 7680 × 4320 pixels through the display screen 180.

The above describes the process of sending image content to the television 100 by the set-top box 200, taking only one image as an example. In practical applications, after the set-top box 200 and the television 100 are connected, the set-top box 200 simultaneously receives the high level of the HPD signal through the four HDMI channels, and then outputs the video stream to the television 100 through the four HDMI channels, so as to ensure that each frame image in the video stream is simultaneously transmitted to the television 100 through the four HDMI channels.

When disconnected from the set-top box 200, the television 100 sets the status flag corresponding to each of the multiple HDMI channels to the unconnected state. Exemplarily, the unconnected state may be represented by 1.

In the above embodiment, the connection signal is simultaneously sent to the set-top box 200 through the multiple HDMI channels, so that the set-top box 200 outputs the image content to the television 100 through each HDMI channel according to the connection signal, and the television 100 can receive the image content through each HDMI channel simultaneously, thereby avoiding the phenomenon that the time for receiving the image content by the multiple HDMI channels of the display device is not synchronous, and preventing the image splicing dislocation caused by the asynchronous time for receiving the image content by the multiple HDMI channels.

An audio output 170 for receiving the sound signal output by the audio processor under the control of the processor 110, wherein the audio output 170 may include a speaker, and may be output to an external sound output terminal of a sound generating device of an external device, except for the speaker carried by the television 100 itself, such as: an external sound interface or an earphone interface and the like.

The power supply provides power supply support for the television 100 from the power input from the external power source under the control of the processor 110. The power supply includes a built-in power circuit installed inside the tv set 100, a power source installed outside the tv set 100, and a power interface providing an external power source in the tv set 100.

A user input interface 190 for receiving an input signal of a user and then transmitting the user input signal to the processor 110. The user input signal may be a remote controller signal received through an infrared receiver, or may be various control signals of a user received through a network communication module.

Illustratively, a user inputs a user command via a remote control or a mobile terminal, the user input interface 190 receives the user input and transmits the user input to the processor 110, and the television 100 responds to the user input via the processor 110.

In some embodiments, a user may enter a user command on a Graphical User Interface (GUI) displayed on the display screen 180, and the user input interface receives the user input command through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.

Fig. 6 shows another structural diagram of a television set provided in the embodiment of the present application, which schematically shows components related to the embodiment of the present application.

As shown in fig. 6, the television set 100 includes a processor 110, a display screen 180, and a memory 160. These components may correspond to some extent to some of the components in fig. 4.

The memory 160 stores an operating system 1611 for driving the television 100, where the operating system 1611 may be an Android operating system (Android), or other operating systems, which is not limited in this application.

The operating system 1611 may be divided into, from top to bottom: an application layer 1612, a framework layer 1613, and a system kernel 1614.

An application layer 1612 for interacting directly with a user. The application layer 1612 includes various applications to enable interaction with a user.

The framework layer 1613, includes various services required for the application layer 1612. The various services may be, for example, a player, a signal source switching service, a power-on video service, a desktop launcher, a graphics synthesizer, etc., as described in connection with embodiments of the present application.

A system kernel 1614, configured to provide core system services for the television 100, such as: boot up, file management, memory management, process management, network management, and the like.

The processor 110 executes various software control programs stored in the memory 160 to implement corresponding operations. For example, in an embodiment of the present application, the processor 110 executes a software control program stored in the memory 160, and detects that the status flags corresponding to the four HDMI channels are all in a connected state, the set top box 200 simultaneously sends a connection signal to the four HDMI channels, so that the set top box 200 simultaneously outputs image content to the television 100 through each HDMI channel according to the connection signal.

Based on the same inventive concept as the above-mentioned embodiment, fig. 7 shows a flowchart of a method for synchronizing image contents of multiple channels according to an embodiment of the present application, where the method for synchronizing image contents of multiple channels can be implemented based on the television 100 shown in fig. 4 or fig. 6.

As shown in fig. 7, the method for synchronizing image contents of multiple channels includes the following steps:

s701: the signal source device is detected to be ready for connection through the multipath channel.

S702: and sending the connection signal to the signal source equipment through the multipath channel.

Before the signal source equipment prepares to send image content to the display equipment, a state signal ready for connection is sent to the display equipment through the multipath channel. And the display equipment detects a state signal ready for connection of the signal source equipment through the multi-channel, and then sends a connection signal to the signal source equipment through the multi-channel so that the signal source equipment outputs image content to the display equipment through the multi-channel according to the connection signal.

The connection signals on at least two paths of the multiple paths are sent simultaneously, so that the signal source equipment outputs image contents to the display equipment through the at least two paths of the multiple paths simultaneously according to the connection signals. The at least two channels and the preset at least two channels.

Specifically, the display device detects a state signal ready for connection of the signal source device through any one of the at least two channels, sets a state flag corresponding to the channel in which the state signal is detected to be in a connected state, and sets a high level for a hot plug detection HPD signal corresponding to each channel simultaneously if it is monitored that the state flags corresponding to the at least two channels are in the connected state, so as to send a connection signal to the signal source device through each channel simultaneously, so that the signal source device outputs image content to the display device through the at least two channels simultaneously according to the connection signal.

S703: and displaying the whole image picture obtained by splicing the image contents received by the multiple channels through the display screen.

The display device receives the image content output by the signal source device through the multi-channel, splices the image content received by the multi-channel to obtain an integral image picture, and displays the obtained integral image picture through the display screen. The display device receives the image content output by the signal source device through each channel, and displays the image content received by each channel at a position corresponding to the display screen, so that the image content received by each channel is spliced into an integral image picture and displayed on the display screen.

When the signal source equipment is disconnected, the display equipment sets the state mark corresponding to each channel in the multiple channels to be in an unconnected state.

In the embodiment of the application, the connection signals on at least two channels in the multipath channel are sent simultaneously, and the signal source device outputs the image content to the television through the at least two channels simultaneously according to the connection signals, so that the display device can receive the image content through the at least two channels simultaneously, the phenomenon that the time for receiving the image content by the multipath channel of the display device is asynchronous is reduced, and the problem of image splicing dislocation caused by the asynchronous time for receiving the image content by the multipath channel in the related technology is solved.

Based on the same inventive concept as the method embodiment described above, an embodiment of the present application further provides a display apparatus, as shown in fig. 8, the display apparatus includes:

a signal transmitting unit 81, configured to transmit a connection signal to a signal source device through a multi-channel after detecting that the signal source device is ready to be connected through the multi-channel, so that the signal source device outputs image content to the display device through the multi-channel according to the connection signal; wherein, the connection signals on at least two paths of the multi-path are sent simultaneously;

and an image display unit 82 configured to display, on a display screen, an entire image obtained by splicing the image contents received by the multiple channels.

In an alternative embodiment, the signal transmitting unit 81 may further be configured to:

In an alternative embodiment, as shown in fig. 9, the display device may further include an identification setting part 91 for:

the signal transmitting unit 81 may be further configured to: and if the state marks corresponding to the multiple channels are monitored to be in a connected state, executing a step of sending connection signals to signal source equipment through the multiple channels at the same time.

In an alternative embodiment, the display device may further include an identification clearing section 92 for:

The embodiment of the present application further provides a computer storage medium, where computer-executable instructions are stored in the computer storage medium, and the computer-executable instructions are used to implement the method for synchronizing the image contents of multiple channels according to any embodiment of the present application.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, all functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application.

Claims

1. The display equipment is characterized in that the display equipment is connected with signal source equipment through a multi-channel, and the multi-channel is used for realizing image content transmission between the signal source equipment and the display equipment; the display device includes:

2. The display device of claim 1, wherein the processor is further configured to:

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

4. The display device of claim 2, wherein the processor is further configured to:

5. The display device of claim 2, wherein the processor is further configured to:

6. A method for synchronizing image contents of multiple channels is characterized in that the multiple channels are used for realizing image content transmission between a signal source device and a display device, and the method comprises the following steps:

7. The method of claim 6, wherein sending a connection signal to a signal source device via the multipath channel comprises:

8. The method of claim 7, further comprising:

9. The method of claim 7, further comprising:

10. The method of claim 7, wherein said sending connection signals to signal source devices simultaneously over said multiple channels comprises: