CN113132769A

CN113132769A - Display device and sound and picture synchronization method

Info

Publication number: CN113132769A
Application number: CN202010042618.XA
Authority: CN
Inventors: 陈俊宁; 初德进; 程志
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2021-07-16

Abstract

The application provides a display device and a sound and picture synchronization method, wherein a controller of the display device is used for acquiring sound and picture synchronization setting parameters, acquiring image delay time of the display device, and determining audio delay time of the display device according to the sound and picture synchronization setting parameters and the image delay time; and the audio processor of the display equipment is used for controlling the playing time of the audio data according to the audio delay time length so that the audio data and the image data are synchronously played. The scheme of the embodiment can be applied to a video playing starting process and a UI interface response process, and the determined audio delay time lengths in the two processes are the same, so that the condition that the two processes interfere with each other can be avoided, the problem of asynchronization of sound and pictures can be solved, and the sound and picture watching experience of a user is improved.

Description

Display device and sound and picture synchronization method

Technical Field

The application relates to the technical field of multimedia playing, in particular to a display device and a sound and picture synchronization method.

Background

More and more display devices support multimedia playback. In the multimedia playing technology, a display device (e.g., a television) parses multimedia data (which may also be referred to as audio/video data) to be played into image data and audio data, performs image quality processing on the image data, outputs the processed image data to a display screen for display, and performs sound effect processing on the audio data, and outputs the processed audio data to a speaker for playing.

Because the image data and the audio data are processed by adopting different data processing paths, and compared with the sound effect processing process of the audio data, the time consumption of the image quality processing process of the image data is longer, so that the time required for the image data to reach the display screen is longer than the time required for the audio data to reach the loudspeaker. Therefore, the phenomenon of picture-sound asynchronism can occur in the process of playing the multimedia data.

Disclosure of Invention

The application provides a display device and a sound and picture synchronization method, which are used for solving the problem of sound and picture asynchronism in the multimedia data playing process.

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

a display screen configured to present screen content;

a speaker configured to reproduce sound;

a video processor configured to perform image quality processing on image data and output the image data after the image quality processing to the display screen;

a controller configured to: acquiring a sound and picture synchronous setting parameter, acquiring an image delay time from the video processor, determining an audio delay time according to the sound and picture synchronous setting parameter and the image delay time, and configuring the audio delay time to the audio processor;

the audio processor is configured to control the time of outputting the audio data to the speaker according to the audio delay time length, so that the time when the audio data reaches the speaker is the same as the time when the image data reaches the display screen.

In one possible implementation, the display device further includes:

the user graphical interface is configured to receive an operation instruction input by a user;

accordingly, the controller is configured to:

and receiving an operation instruction input by a user aiming at the sound and picture synchronization function from the user graphical interface, and acquiring the sound and picture synchronization setting parameters from the operation instruction.

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

and setting the value of the sound-picture synchronization attribute in the system file of the display device as the sound-picture synchronization setting parameter.

In one possible implementation, the controller is configured to:

and when a playing instruction is received, reading the value of the sound-picture synchronization attribute from the system file of the display equipment to obtain the sound-picture synchronization setting parameter.

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

and when a playing ending instruction is received, updating the audio delay time length to a preset value, and configuring the updated audio delay time length to the audio processor.

In one possible implementation, the controller is configured to:

determining the output delay of the audio data relative to the image data according to the sound-picture synchronous setting parameters and the preset unit delay duration;

and determining the audio delay time length according to the output delay of the audio data relative to the image data and the image delay time length.

In one possible implementation, the controller is configured to:

obtaining the image delay time length from the video processor by operating a driving program of the video processor;

and configuring the audio delay time length to the audio processor by operating a driving program of the audio processor.

In a second aspect, the present application provides a sound and picture synchronization method, applied to a display device, the method including:

acquiring sound and picture synchronous setting parameters, wherein the sound and picture synchronous setting parameters are used for indicating that the output delay of the audio data relative to the image data is delayed when the display device plays sound and picture data comprising the audio data and the image data;

acquiring an image delay time of the display device, wherein the image delay time is used for indicating a time required by the display device for performing image quality processing on the image data;

determining the audio delay time of the display equipment according to the sound and picture synchronous setting parameters and the image delay time;

and controlling the playing time of the audio data according to the audio delay time length so that the audio data and the image data are synchronously played.

In a possible implementation manner, the acquiring the sound-picture synchronization setting parameter includes: receiving an operation instruction input by a user aiming at the sound and picture synchronization function through a user graphical interface; and acquiring sound and picture synchronous setting parameters from the operation instruction.

In a possible implementation manner, after obtaining the sound-picture synchronization setting parameter from the operation instruction, the method further includes: and setting the value of the sound-picture synchronization attribute in the system file of the display equipment as the sound-picture synchronization setting parameter.

In a possible implementation manner, the acquiring the sound-picture synchronization setting parameter includes: and when a playing instruction of the sound and picture data is received, reading the value of the sound and picture synchronization attribute from a system file of the display equipment to obtain the sound and picture synchronization setting parameter.

In a possible implementation, the method further includes: and after the audio and video data are played, updating the audio delay time of the display equipment to a preset value.

In a possible implementation manner, the determining an audio delay duration of the display device according to the sound-picture synchronization setting parameter and the image delay duration includes:

determining the output delay of the audio data relative to the image data according to the sound-picture synchronous setting parameters and the preset unit delay time;

and determining the audio delay time of the display equipment according to the output delay of the audio data relative to the image data and the image delay time.

In a possible implementation manner, the obtaining an image delay time of the display device includes:

acquiring the image delay time length from a video processor by operating a driving program of the video processor;

after the determining the audio delay duration of the display device, the method further includes:

In a third aspect, the present application provides a sound and picture synchronization apparatus applied to a display device, the apparatus comprising:

a first acquisition section for acquiring a sound-picture synchronization setting parameter for instructing the display apparatus to delay output of audio data with respect to image data when the sound-picture data including the audio data and the image data is played;

a second acquisition unit configured to acquire an image delay time of the display device, where the image delay time is used to instruct the display device to perform a time required for image quality processing on the image data;

a determining part, configured to determine an audio delay duration of the display device according to the audio-video synchronization setting parameter and the image delay duration;

and the audio delay processing part is used for controlling the playing time of the audio data according to the audio delay time length so that the audio data and the image data are played synchronously.

In a possible implementation manner, the first obtaining part is specifically configured to: receiving an operation instruction input by a user aiming at the sound and picture synchronization function through a user graphical interface; and acquiring sound and picture synchronous setting parameters from the operation instruction.

In a possible implementation manner, the first obtaining part is further configured to: and setting the value of the sound-picture synchronization attribute in the system file of the display device as the sound-picture synchronization setting parameter.

In a possible implementation manner, the first obtaining part is specifically configured to: and when a playing instruction of the sound and picture data is received, reading a sound and picture synchronization attribute value from a system file of the display equipment to obtain the sound and picture synchronization setting parameter.

In one possible implementation, the determining part is further configured to: and after the audio and video data are played, updating the audio delay time of the display equipment to a preset value.

In one possible implementation, the determining unit is specifically configured to:

In a possible implementation manner, the second obtaining part is specifically configured to: acquiring the image delay time length from a video processor by operating a driving program of the video processor;

the determination section is further configured to configure the audio delay time period to an audio processor by running a driver of the audio processor.

In a fourth aspect, the present application provides a display device comprising: memory, a processor and a computer program, the computer program being stored in the memory, the processor running the computer program to perform the method according to any of the second aspects.

In a fifth aspect, the present application provides a computer readable storage medium comprising a computer program which, when executed by a processor, implements the method of any of the second aspects.

The display device and the sound and picture synchronization method provided by the application are characterized in that a controller of the display device is used for acquiring sound and picture synchronization setting parameters, acquiring image delay time of the display device, and determining audio delay time of the display device according to the sound and picture synchronization setting parameters and the image delay time; the audio processor is used for controlling the playing time of the audio data according to the audio delay time length so as to enable the audio data and the image data to be played synchronously. When the display device of the embodiment is applied to a video playing starting process and a user graphical interface response process, the audio delay time determined in the two processes is the same, so that the condition that the two processes interfere with each other can be avoided, the problem of asynchronization of sound and pictures can be solved, and the sound and picture watching experience of a user is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art 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 for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic diagram of an operation scenario between a display device and a control apparatus in an embodiment of the present application;

fig. 2 is a block diagram showing a configuration of a control device in the embodiment of the present application;

FIG. 3A is a diagram illustrating a hardware architecture of a hardware system in a display device according to an embodiment of the present application;

FIG. 3B is a diagram illustrating a hardware structure of a hardware system in a display device according to another embodiment of the present application;

FIG. 4 is a schematic diagram illustrating the connection of a power strip to a load;

FIG. 5 is a block diagram illustrating an exemplary hardware architecture for the display device of FIG. 3A;

fig. 6 is a schematic diagram illustrating a functional configuration of a display device according to an exemplary embodiment;

fig. 7 is a block diagram illustrating a configuration of a software system in a display device according to an exemplary embodiment;

fig. 8 is a schematic diagram illustrating an application program of the display device;

FIG. 9 is a diagram illustrating a graphical user interface in a display device in accordance with an illustrative embodiment;

FIG. 10 is a schematic diagram illustrating a playing principle of multimedia data by a display device according to an embodiment of the present application;

fig. 11 is a schematic diagram illustrating a processing procedure of a video processing path according to an embodiment of the present disclosure;

fig. 12A to 12D are schematic diagrams illustrating a function of adjusting a picture synchronization function through an OSD menu according to an embodiment of the present application;

FIG. 13A illustrates a schematic diagram of one possible interference scenario;

FIG. 13B illustrates a schematic diagram of another possible interference scenario;

FIG. 14 is a flowchart illustrating a method for synchronizing audio and video according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of a display device according to an embodiment of the present application;

fig. 16 is a schematic flowchart of a sound-picture synchronization method according to another embodiment of the present application;

fig. 17 is a schematic structural diagram of a sound-picture synchronizing device according to an embodiment of the present application;

fig. 18 is a schematic structural diagram of a display device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the 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.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the above-described drawings (if any) are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The present application is mainly directed to a display device having a dual-system and dual-display structure, that is, a sound and picture synchronization process of a display device having a first controller (a first hardware system), a second controller (a second hardware system), a first display and a second display, and the following first describes details of the structure, function, implementation, and the like of the display device having the dual-system hardware structure.

For the convenience of users, various external device interfaces are usually provided on the display device to facilitate connection of different peripheral devices or cables to implement corresponding functions. When a high-definition camera is connected to an interface of the display device, if a hardware system of the display device does not have a hardware interface of a high-pixel camera for receiving source codes, data received by the camera cannot be displayed on a display screen of the display device.

Furthermore, due to the hardware structure, the hardware system of the conventional display device only supports one path of hard decoding resources, and usually can only support video decoding with 4K resolution at most, so when a user wants to realize video chat while watching a network television, the user needs to use the hard decoding resources (usually GPU in the hardware system) to decode the network video without reducing the definition of the network video screen, and in this case, the user can only process the video chat screen in a manner of soft decoding the video by a general purpose processor (e.g. CPU) in the hardware system.

The soft decoding is adopted to process the video chat picture, so that the data processing burden of a CPU (central processing unit) can be greatly increased, and when the data processing burden of the CPU is too heavy, the problem of picture blocking or unsmooth flow can occur. In some embodiments, due to the data processing capability of the CPU, when the CPU performs soft decoding on the video chat screen, multi-channel video calls cannot be generally implemented, and when a user wants to perform video chat with multiple other users in the same chat scene, access is blocked.

In view of the above aspects, to overcome the above drawbacks, the present application discloses a dual hardware system architecture to implement multiple channels of video chat data (at least one channel of local video).

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

The term "module," as used in various embodiments of the present application, may refer to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.

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

The term "gesture" as used in the embodiments of the present application refers to a user behavior used to express an intended idea, action, purpose, or result through a change in hand shape or an action such as hand movement.

The term "hardware system" used in the embodiments of the present application may refer to a physical component having computing, controlling, storing, inputting and outputting functions, which is formed by a mechanical, optical, electrical and magnetic device such as an Integrated Circuit (IC), a Printed Circuit Board (PCB) and the like. In various embodiments of the present application, a hardware system may also be referred to as a motherboard (or chip).

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

The control device 100 may be a remote controller 100A, which may communicate with the display device 200 through an infrared protocol communication, a bluetooth protocol communication, a ZigBee (ZigBee) protocol communication, or other short-distance communication, and is configured to control the display device 200 through a wireless or other wired manner. The user may input a user instruction through a key on the remote controller 100A, voice input, control panel input, or the like to control the display apparatus 200. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right moving keys, a voice input key, a menu key, a switch key, etc. on the remote controller 100A to control the functions of the display device 200.

The control device 100 may also be an intelligent device, such as a mobile terminal 100B, a tablet computer, a notebook computer, etc., which may communicate with the display device 200 through a Local Area Network (LAN), a Wide Area Network (WAN), a Wireless Local Area Network (WLAN), or other networks, and implement control of the display device 200 through an application program corresponding to the display device 200. For example, the display device 200 is controlled using an application program running on the smart device. The application may provide various controls to the User through an intuitive User Interface (UI) on a screen associated with the smart device.

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

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

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

The display device 200 includes a first display screen 201 and a second display screen 202, where the first display screen 201 and the second display screen 202 are independent from each other, and a dual hardware control system is adopted between the first display screen 201 and the second display screen 202.

The first display 201 and the second display 202 may be used to display different display screens. For example, the first display screen 201 may be used for screen display of conventional television programs, and the second display screen 202 may be used for screen display of auxiliary information such as notification type messages, voice assistants, and the like.

In some embodiments, the content displayed on the first display screen 201 and the content displayed on the second display screen 202 may be independent of each other. For example, when the first display screen 201 plays a television program, the second display screen 202 may display information such as time, weather, temperature, a reminder message, and the like, which are not related to the television program.

In some embodiments, there may also be an association between the content displayed by the first display screen 201 and the content displayed by the second display screen 202. For example, when the first display screen 201 plays a main screen of a video chat, the second display screen 202 may display information such as a head portrait, a chat duration, and the like of a user currently accessing the video chat.

In some embodiments, some or all of the content displayed by the second display screen 202 may be adjusted to the first display screen 201. For example, the information such as time, weather, temperature, and reminder message displayed on the first display 201 may be adjusted to be displayed on the first display 201, while other information is displayed on the second display 202.

In addition, the first display screen 201 displays a multi-party interactive picture while displaying a traditional television program picture, and the multi-party interactive picture does not block the traditional television program picture. The display mode of the traditional television program picture and the multi-party interactive picture is not limited by the application. For example, the position and the size of the traditional television program picture and the multi-party interactive picture can be set according to the priority of the traditional television program picture and the multi-party interactive picture.

Taking the example that the priority of the traditional television program picture is higher than that of the multi-party interactive picture, the area of the traditional television program picture is larger than that of the multi-party interactive picture, and the multi-party interactive picture can be positioned at one side of the traditional television program picture and can also be arranged at one corner of the multi-party interactive picture in a floating manner.

The display device 200 may be, for example, a liquid crystal display, an oled (organic Light Emitting diode) display, or a projection display device; on the other hand, the display device 200 may be a smart tv or a display system consisting of a display and a set-top box. The particular display device type, size, resolution, etc. are not limiting, and those skilled in the art will appreciate that the display device 200 may be modified in performance and configuration as desired.

The display apparatus 200 may additionally provide an intelligent network tv function that provides a computer support function in addition to the broadcast receiving tv function. Examples include network television, smart television, Internet Protocol Television (IPTV), and the like. In some embodiments, the display device may not have a broadcast receiving television function.

As shown in fig. 1, a camera may be connected or disposed on the display device 200, and is used to present a picture taken by the camera on a display interface of the display device or other display devices, so as to implement interactive chat between users. Specifically, the picture shot by the camera can be displayed on the display device in a full screen mode, a half screen mode or any optional area.

As a connection mode in some embodiments, the camera is connected with the rear shell of the display device through the connection board, and is fixedly installed in the middle of the upper side of the rear shell of the display device.

As another way of connection in some embodiments, the camera is connected to the rear housing of the display device through a connection board or other conceivable connector, which is capable of being lifted up and down, and the connector is provided with a lifting motor, when the user wants to use the camera or has an application program to use the camera, the camera is lifted up from the display device, and when the user does not need to use the camera, the camera can be embedded in the rear housing, so as to protect the camera from being damaged and protect the privacy of the user.

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

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

Illustratively, a user may conduct a video chat with at least one other user while watching a video program. The presentation of the video program may be as a background frame over which a window for video chat is displayed. The function is called 'chat while watching'.

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

In another example, a user may conduct a video chat with at least one other user while entering the educational application for learning. For example, a student may interact remotely with a teacher while learning content in an educational application. Vividly, this function can be called "chatting while learning".

In another example, a user conducts a video chat with a player entering a card game while playing the game. For example, a player may enable remote interaction with other players when entering a gaming application to participate in a game. Figuratively, this function may be referred to as "watch while playing".

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

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

In another example, a user may interact with at least one other user in a karaoke application in video and voice. Vividly, this function can be called "sing while watching". In some embodiments, when at least one user enters the application in a chat scenario, multiple users may jointly complete recording of a song.

In another example, a user may turn on a camera locally to take pictures and videos, figurative, which may be referred to as "looking into the mirror".

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

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

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

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

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

The controller 110 includes a processor 112, a RAM 113 and a ROM 114, a communication interface, and a communication bus. The controller 110 is used to control the operation of the control device 100, as well as internal communications between various components and external and internal data processing functions.

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

A user input/output interface 140, wherein the input interface includes at least one of a microphone 141, a touch pad 142, a sensor 143, a key 144, a camera 145, and the like. Such as: the user can realize a user instruction input function through actions such as voice, touch, gesture, pressing, and the like, and the input interface converts the received analog signal into a digital signal and converts the digital signal into a corresponding instruction signal, and sends the instruction signal to the display device 200.

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

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

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

And a power supply 180 for providing operation power support for each electrical component of the control device 100 under the control of the controller 110. The power supply 180 may be powered by a battery and associated control circuitry.

In some embodiments, a hardware configuration diagram of a hardware system in the display device 200 according to an exemplary embodiment is illustrated in fig. 3A. For convenience of illustration, the display device 200 in fig. 3A is illustrated as a liquid crystal display.

As shown in fig. 3A, the display device 200 may include: a first panel 11, a first backlight assembly 12, a first rear case 13, a first controller 14, a second controller 15, a first display driving circuit 16, a second panel 21, a second backlight assembly 22, a second rear case 23, a second display driving circuit 24, and a power supply assembly 30. Additionally, in some embodiments, the display device 200 may further include: a base or a suspension bracket. For convenience of illustration, the display device 200 in fig. 3A is illustrated by including a base 41, and the base 41 is used for supporting the display device 200. It should be noted that the drawings only show one type of base design, and those skilled in the art can design different types of bases according to the product requirements.

The first panel 11 is used for presenting the picture of the first display screen 201 to the user. In some embodiments, the first panel 11 may be a liquid crystal panel. For example, the liquid crystal panel may include, in order from top to bottom: the liquid crystal display panel includes a horizontal polarizing plate, a color filter, a liquid crystal layer, a thin film transistor TFT, a vertical polarizing plate, a light guide plate, and a Printed Circuit Board (PCB) on which a driving circuit such as a gate driving circuit and a source driving circuit is disposed. The grid electrode driving circuit is connected with the grid electrode of the thin film transistor TFT through a scanning line, and the source electrode driving circuit is connected with the drain electrode of the thin film transistor TFT through a data line.

The first backlight assembly 12 is disposed below the first panel 11, and is generally an optical assembly for providing sufficient light source with uniform brightness and distribution to enable the first panel 11 to normally display images. The first backlight assembly 12 further includes a first back plate (not shown).

The first rear case 13 is disposed on the first panel 11 to cover the first backlight assembly 12, the first controller 14, the second controller 15, the first display driving circuit 16, the power supply assembly 30, and other components of the display device 200, thereby achieving an aesthetic effect.

The first controller 14, the second controller 15, the first display driving circuit 16 and the power supply assembly 30 are disposed on the first backplane, and some convex hull structures are usually formed by stamping on the first backplane. The first controller 14, the second controller 15, the first display driving circuit 16, and the power supply module 30 are fixed to the convex bag by screws or hooks.

In some embodiments, the first controller 14, the second controller 15, the first display driving circuit 16 and the power supply component 30 may be disposed on a same board, or may be disposed on different boards, such as the first controller 14 disposed on a main board, the second controller 15 disposed on an interactive board, the first display driving circuit 16 disposed on the first display driving board, and the power supply component 30 disposed on a power supply board, or may be disposed on different boards in combination, or may be disposed on a same board together with the first backlight component 12, which may be specifically set according to actual requirements, and this application is not limited thereto.

For convenience of explanation, fig. 3A illustrates an example in which the first controller 14, the second controller 15, the first display driver circuit 16, and the power supply module 30 are provided on a single board.

The first display driving circuit 16 mainly functions to: the driving signals of the backlight, such as PWM signals and Local dimming signals, transmitted by the first controller 14 perform the thousand-level backlight partition control, which is changed according to the image content, and after handshaking is established with the first controller 14, the VbyOne display signals transmitted by the first controller 14 are received and converted into LVDS signals, so as to display the image of the first display screen 201.

Wherein the second panel 21 is used for presenting the picture of the second display screen 202 to the user. In some embodiments, the second panel 21 may be a liquid crystal panel, and the specific structure included in the second panel may be as described in the foregoing, which is not described herein again.

The second backlight assembly 22 is disposed below the second panel 12, and is generally an optical assembly for providing sufficient brightness and uniform light source to enable the second panel 12 to normally display images. The second backlight assembly 22 further includes a second back plate (not shown).

The second rear case 23 is disposed on the second panel 21 to jointly hide the components of the display device 200, such as the second backlight assembly 22 and the second display driving circuit 24, thereby achieving an aesthetic effect.

The second display driving circuit 24 is disposed on the second back plate, and some convex hull structures are usually formed on the second back plate by stamping. The second display driving circuit 24 is fixed to the convex bag by a screw or a hook. The second display driving circuit 24 may be separately disposed on a board, such as the second display driving board, or may be disposed on a board together with the second backlight assembly 22, and the second display driving circuit may be disposed specifically according to actual requirements, which is not limited in this application. For convenience of explanation, fig. 3A illustrates the second display driving circuit 24 separately provided on one board.

In some embodiments, fig. 3A further includes a key sheet, where the key sheet may be disposed on the first back plate or the second back plate, which is not limited in this application. And a plurality of keys and key circuits are arranged on the key board, so that the first controller 14 or the second controller 15 can receive key signals from the key board, and the first controller 14 or the second controller 15 can send control signals to the key board.

In addition, the display device 200 further includes a sound reproducing apparatus (not shown in the figure), such as an audio component, e.g., an I2S interface including a power Amplifier (AMP) and a Speaker (Speaker), etc., for realizing reproduction of sound. Usually, the sound components are capable of realizing sound output of at least two sound channels; when the panoramic surround effect is to be achieved, a plurality of acoustic components are required to be arranged to output sounds of a plurality of sound channels, and a detailed description thereof is omitted.

It should be noted that the display device 200 may also be an OLED display, and correspondingly, the template included in the display device 200 is changed accordingly, for example, since the OLED display can achieve self-light emission, a backlight assembly (the first backlight assembly 12 and the second backlight assembly 22 in fig. 3A) is not needed in the OLED display, which is not described herein too much.

Alternatively, a display device having a dual display screen is taken as an exemplary illustration as shown in fig. 3A, and a hardware configuration diagram of a hardware system in the display device according to an exemplary embodiment is exemplarily shown in fig. 3B.

Among them, in the display apparatus having a single display screen as shown in fig. 3B, the display apparatus includes: a panel 1, a backlight assembly 2, a rear case 3, a controller 4, a power supply assembly 5, and a chassis 6. The panel 1 is used for presenting pictures for users; the backlight assembly 2 is located below the panel 1, and is usually some optical assemblies for supplying sufficient light source with uniform brightness and distribution to enable the panel 1 to normally display image content, the backlight assembly 2 further includes a back plate, the controller 4 and the power supply assembly 5 are arranged on the back plate, and are usually stamped on the back plate to form some convex hull structures, and the controller 4 and the power supply assembly 5 are fixed on the convex hulls through screws or hooks; the rear shell 3 is covered on the panel 1 to jointly hide the parts of the display equipment such as the backlight component 2, the controller 4, the power supply component 5 and the like, thereby achieving the effect of attractive appearance; and a base 6 for supporting the display device.

The controller 4 and the power supply module 5 may be separately disposed on a board, may be disposed on a board together, or may be disposed on a board together with the backlight module, and may be specifically disposed according to actual requirements, which is not limited in this application. For convenience of explanation, in fig. 3B, the controller 4 and the power supply module 5 are provided together on one board.

It should be noted that the display device 200 may also adopt an OLED display screen, so that the template included in the display device 200 is changed accordingly, which is not described herein too much.

Fig. 4 is a schematic diagram showing the connection relationship between the power supply board and the load, and as shown IN fig. 4, the power supply module 30 includes an input terminal IN and an output terminal OUT (a first output terminal OUT1, a second output terminal OUT2, a third output terminal OUT3, a fourth output terminal OUT4 and a fifth output terminal OUT5 are shown), wherein the input terminal IN is connected to an AC power source AC (such as commercial power), the output terminal OUT is connected to the load, for example, a first output terminal OUT1 is connected to the sound reproducing apparatus, a second output terminal OUT2 is connected to the first panel 11/the second panel 21, a third output terminal OUT3 is connected to the first backlight module 12/the second backlight module 22, a fourth output terminal OUT4 is connected to the first controller 14/the second controller 15, and a fifth output terminal OUT5 is connected to the first display driving circuit 16/the second display driving circuit 24. The power supply 30 needs to convert the ac power into dc power required by the load, and the dc power is usually of different specifications, for example, 18V is required for the audio components, 12V/18V is required for the first controller 14, etc.

For ease of description, one hardware system in a dual hardware system architecture will be referred to hereinafter as a first hardware system or a first controller, and the other hardware system will be referred to hereinafter as a second hardware system or a second controller. The first controller comprises various processors and various interfaces of the first controller, and various modules connected with the first controller through various interfaces, and the second controller comprises various processors and various interfaces of the second controller, and various modules connected with the second controller through various interfaces.

The first controller and the second controller may each have a relatively independent operating system installed therein, and the operating system of the first controller and the operating system of the second controller may communicate with each other through a communication protocol, which is as follows: the frame layer of the operating system of the first controller and the frame layer of the operating system of the second controller can communicate for the transmission of commands and data, so that there are two independent but interrelated subsystems in the display device 200.

The dual hardware system architecture of the present application is described in some embodiments below in conjunction with fig. 5. It should be noted that fig. 5 is only an exemplary illustration of the dual hardware system architecture of the present application and does not represent a limitation of the present application. In actual practice, both hardware systems may contain more or less hardware or interfaces as desired.

A block diagram of the hardware architecture of the display device 200 according to fig. 3A is exemplarily shown in fig. 5. As shown in fig. 5, the hardware system of the display apparatus 200 may include a first controller 210 and a second controller 310, and a module connected to the first controller 210 or the second controller 310 through various interfaces.

In some embodiments: the second controller 310 may be configured to receive the instruction sent by the first controller 210 and control the second display screen 380 to display a corresponding image.

The modules connected to the first controller 210 may include a tuning demodulator 220, a communicator 230, an external device interface 25, a memory 290, a user input interface 260-3, a video processor 260-1, an audio processor 260-2, a first display screen 280 (i.e., the first display screen 201 in fig. 1), an audio output interface 270, and a power supply module 240. In other embodiments, more or fewer modules may be connected to the first controller 210.

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

The tuner demodulator 220 is also operative to respond to the user-selected television channel frequency and the television signal carried thereby, in accordance with the user selection and as controlled by the first controller 210.

In other exemplary embodiments, the tuner/demodulator 220 may be in an external device, such as an external set-top box. In this way, the set-top box outputs television audio/video signals after modulation and demodulation, and the television audio/video signals are input into the display device 200 through the external device interface 250.

The communicator 230 is a component for communicating with an external device or an external server according to various communication protocol types. For example: the communicator 230 may include a WIFI module 231, a bluetooth communication protocol module 232, a wired ethernet communication protocol module 233, and other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module (not shown).

The display apparatus 200 may establish a connection of a control signal and a data signal between an external control apparatus or a content providing apparatus through the communicator 230. For example, the communicator may receive a control signal of the remote controller 100 according to the control of the first controller 210.

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

The external device interface 250 may include: a High Definition Multimedia Interface (HDMI) terminal is also referred to as HDMI 251, a Composite Video Blanking Sync (CVBS) terminal is also referred to as AV 252, an analog or digital component terminal is also referred to as component 253, a Universal Serial Bus (USB) terminal 254, a Red Green Blue (RGB) terminal (not shown in the figure), and the like. The number and type of external device interfaces are not limited by this application.

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

As shown in fig. 5, the first controller 210 includes a read only memory RAM 213, a random access memory ROM 214, a graphics processor 216, a CPU processor 212, a communication interface 218, and a communication bus. The RAM 213 and the ROM 214, the graphic processor 216, the CPU processor 212, and the communication interface 218 are connected via a bus.

A ROM 213 for storing instructions for various system boots. If the power-on signal is received, the display device 200 starts to be powered on, the CPU processor 212 executes the system boot instruction in the ROM, and copies the operating system stored in the memory 290 to the RAM 214 to start running the boot operating system. After the start of the operating system is completed, the CPU processor 212 copies the various application programs in the memory 290 to the RAM 214, and then starts running and starting the various application programs.

A graphics processor 216 for generating various graphics objects, such as: icons, operation menus, and user input instruction display graphics, etc. The display device comprises an arithmetic unit which carries out operation by receiving various interaction instructions input by a user and displays various objects according to display attributes. And a renderer for generating various objects based on the objects obtained by the calculator, and displaying the rendered result on the first display screen 280.

A CPU processor 212 for executing operating system and application program instructions stored in memory 290. 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 212 may include a plurality of processors. The plurality of processors may include a main processor and a plurality of or a sub-processor. A main processor for performing some operations of the display apparatus 200 in a pre-power-up mode and/or operations for displaying a screen in a normal mode. A plurality of or one sub-processor for performing an operation in a standby mode or the like.

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

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

The first controller 210 may control operations of the display apparatus 200 in relation to the second display screen 380. For example: in response to receiving a user command for selecting a UI object displayed on the second display screen 380, the first controller 210 may perform an operation related to the object selected by the user command.

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

The memory 290 includes a memory for storing various software modules for driving and controlling the display apparatus 200. Such as: various software modules stored in memory 290, including: a basic module, a detection module, a communication module, a display control module, a browser module, and various service modules, etc. (not shown in the figure).

The basic module is a bottom layer software module for signal communication between hardware in the display device 200 and sending processing and control signals to an upper layer module. The detection module is a management module used for collecting various information from various sensors or user input interfaces, and performing digital-to-analog conversion and analysis management. The voice recognition module comprises a voice analysis module and a voice instruction database module. The display control module is a module for controlling the first display 280 to display image content, and may be used to play information such as multimedia image content and UI interface. The communication module is used for carrying out control and data communication with external equipment. And the browser module is used for executing data communication between the browsing servers. The service module is a module for providing various services and various application programs.

Meanwhile, the memory 290 is also used to store visual effect maps and the like for receiving external data and user data, images of respective items in various user interfaces, and a focus object.

A user input interface 260-3 for transmitting an input signal of a user to the first controller 210 or transmitting a signal output from the first controller 210 to the user. For example, the control device (e.g., a mobile terminal or a remote controller) may transmit an input signal, such as a power switch signal, a channel selection signal, a volume adjustment signal, etc., input by the user to the user input interface, and then the input signal is forwarded to the first controller 210 through the user input interface 260-3; alternatively, the control device may receive an output signal such as audio, video, or data processed by the first controller 210 and output from the user input interface 260-3, and display the received output signal or output the received output signal in audio or vibration form.

In some embodiments, the user may input a user command on a Graphical User Interface (GUI) displayed on the first display screen 280, and the user input interface 260-3 receives the user input command through the Graphical User Interface (GUI). Alternatively, the user may input a user command by inputting a specific sound or gesture, and the user input interface 260-3 receives the user input command by recognizing the sound or gesture through the sensor.

The video processor 260-1 is configured to receive a video signal, and perform video data processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to a standard codec protocol of the input signal, so as to obtain a video signal that is directly displayed or played on the first display screen 280.

Illustratively, the video processor 260-1 includes a demultiplexing module, a video decoding module, an image synthesizing module, a frame rate conversion module, a display formatting module, and the like (not shown in the figure).

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

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

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

The frame rate conversion module is configured to convert a frame rate of an input video, such as a 24Hz, 25Hz, 30Hz, or 60Hz video, into a 60Hz, 120Hz, or 240Hz frame rate, wherein the input frame rate may be related to a source video stream, and the output frame rate may be related to a refresh rate of the display device. And a display formatting module for converting the signal output by the frame rate conversion module into a signal conforming to a display format of a display device, such as converting the format of the signal output by the frame rate conversion module to output RGB data signals.

First display screen 280 for receiving image signals from video processor 260-1 for displaying video content and images and menu manipulation interface first display screen 280 includes a display screen assembly for presenting a picture and a driving assembly for driving the display of the image. The video content is displayed either from the video in the broadcast signal received by the tuner demodulator 220 or from video content input by the communicator or external device interface. The first display screen 280 simultaneously displays a user manipulation interface UI generated in the display apparatus 200 and used to control the display apparatus 200.

And a driving component for driving the display according to the type of the first display screen 280. Alternatively, a projection device and a projection screen may be included, provided that the first display screen 280 is a projection display screen.

The audio processor 260-2 is configured to receive an audio signal, and perform audio data processing such as decompression and decoding, noise reduction, digital-to-analog conversion, and amplification according to a standard codec protocol of the input signal, so as to obtain an audio signal that can be played in the speaker 272.

An audio output interface 270 for receiving the audio signal output by the audio processor 260-2 under the control of the first controller 210, wherein the audio output interface may include a speaker 272 or an external sound output terminal 274 for outputting to a generating device of an external device, such as: external sound terminal or earphone output terminal, etc.

In other exemplary embodiments, video processor 260-1 may comprise one or more chip components. The audio processor 260-2 may also include one or more chips.

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

And a power supply module 240 for providing power supply support for the display device 200 by the power input from the external power source under the control of the first controller 210. The power supply module 240 may include a built-in power supply circuit installed inside the display apparatus 200, or may be a power supply installed outside the display apparatus 200, such as a power supply interface for providing an external power supply in the display apparatus 200.

Similar to the first controller 210, as shown in fig. 5, the module connected to the second controller 310 may include a communicator 330, a detector 340, a memory 390, and a second display screen 380 (i.e., the second display screen 202 in fig. 1). A user input interface, a video processor, an audio processor, a display screen, an audio output interface (not shown) may also be included in some embodiments. In some embodiments, there may also be a power supply module (not shown) that independently powers the second controller 310.

The communicator 330 is a component for communicating with an external device or an external server according to various communication protocol types. For example: the communicator 330 may include a WIFI module 331, a bluetooth communication protocol module 332, a wired ethernet communication protocol module 333, and other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module (not shown).

The communicator 330 and the communicator 230 of the first controller 210 also interact with each other. For example, the WiFi module 231 within the hardware system of the first controller 210 is used to connect to an external network, generate network communication with an external server, and the like. The WiFi module 331 in the hardware system of the second controller 310 is used to connect to the WiFi module 231 of the first controller 210 without making a direct connection with an external network or the like, and the second controller 310 is connected to the external network through the first controller 210. Therefore, for the user, a display device as in the above embodiment displays a WiFi account to the outside.

The detector 340 is a component of the second controller 310 for collecting an external environment or a signal interacting with the outside. The detector 340 may include a light receiver 342, a sensor for collecting the intensity of ambient light, which may be used to adapt to display parameter changes, etc.; the system may further include an image collector 341, such as a camera, a video camera, etc., which may be configured to collect external environment scenes, collect attributes of the user or interact gestures with the user, adaptively change display parameters, and identify user gestures, so as to implement a function of interaction with the user.

The external device interface 350 provides a component for data transmission between the second controller 310 and the first controller 210 or other external devices. The external device interface may be connected with an external apparatus such as a set-top box, a game device, a notebook computer, etc. in a wired/wireless manner.

A video processor 360 for processing the associated video signal.

The second controller 310 controls the operation of the display device 200 and the operation in response to the user by running various software control programs (e.g., with installed third party applications, etc.) stored on the memory 390 and interacting with the first controller 210.

As shown in fig. 5, the second controller 310 includes a read only memory ROM 313, a random access memory RAM 314, a graphic processor 316, a CPU processor 312, a communication interface 318, and a communication bus. The ROM 313 and the RAM 314, the graphic processor 316, the CPU processor 312, and the communication interface 318 are connected via a bus.

A ROM 313 for storing instructions for various system boots. CPU processor 312 executes system boot instructions in ROM and copies the operating system stored in memory 390 to RAM 314 to begin running the boot operating system. After the start of the operating system is completed, the CPU processor 312 copies various application programs in the memory 390 to the RAM 314, and then starts running and starting various application programs.

A CPU processor 312 for executing the operating system and application program instructions stored in the memory 390, communicating with the first controller 210, transmitting and interacting signals, data, instructions, etc., and executing various application programs, data and contents according to various interactive instructions receiving external input, so as to finally display and play various audio-video contents.

The communication interface 318 is plural and may include a first interface 318-1 to an nth interface 318-n. These interfaces may be network interfaces connected to external devices via a network, or may be network interfaces connected to the first controller 210 via a network.

The second controller 310 may control operations of the display device 200 in relation to the second display screen 380. For example: in response to receiving a user command for selecting a UI object displayed on the second display screen 380, the second controller 310 may perform an operation related to the object selected by the user command.

The second controller 310 may control operations of the display device 200 in relation to the first display screen 280. For example: in response to receiving a user command for selecting a UI object displayed on the first display 280, the first controller 210 may perform an operation related to the object selected by the user command.

A graphics processor 316 for generating various graphics objects, such as: icons, operation menus, and user input instruction display graphics, etc. The display device comprises an arithmetic unit which carries out operation by receiving various interaction instructions input by a user and displays various objects according to display attributes. And a renderer for generating various objects based on the objects obtained by the calculator, and displaying the rendered result on the second display screen 380.

The graphics processor 316 of the second controller 310 and the graphics processor 216 of the first controller 210 are both capable of generating various graphics objects. In distinction, if the application 1 is installed in the second controller 310 and the application 2 is installed in the first controller 210, the graphic object is generated by the graphic processor 316 of the second controller 310 when the user performs the instruction input by the user in the interface of the application 1 and within the application 1. When a user makes a command input by the user at the interface of the application 2 and within the application 2, a graphic object is generated by the graphic processor 216 of the first controller 210.

A schematic diagram of a functional configuration of a display device according to an exemplary embodiment is illustrated in fig. 6.

As shown in fig. 6, the memory 390 of the second controller 310 and the memory 290 of the first controller 210 are used to store an operating system, an application program, contents, user data, and the like, respectively, and perform system operations for driving the first display screen 280 and the second display screen 380 and various operations in response to a user under the control of the second controller 310 and the first controller 210. Memory 390 and memory 290 may include volatile and/or nonvolatile memory.

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

The memory 290 is specifically used for storing drivers and related data such as the video processor 260-1 and the audio processor 260-2, the first display 280, the communicator 230, the tuner demodulator 220, the input/output interface, and the like.

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

The memory 290, for example, includes a broadcast receiving module 2901, a channel control module 2902, a volume control module 2903, an image control module 2904, a display control module 2905, a first audio control module 2906, an external instruction recognition module 2907, a communication control module 2908, a light receiving module 2909, a power control module 2910, an operating system 2911, and other applications 2912, a browser module 2913, and so forth. The first controller 210 performs operations such as: the system comprises a broadcast television signal receiving and demodulating function, a television channel selection control function, a volume selection control function, an image control function, a display control function, an audio control function, an external instruction identification function, a communication control function, an optical signal receiving function, an electric power control function, a software control platform supporting various functions, a browser function and other various functions.

The memory 390 includes a memory storing various software modules for driving and controlling the display apparatus 200. Such as: various software modules stored in memory 390, including: a basic module, a detection module, a communication module, a display control module, a browser module, and various service modules, etc. (not shown in the figure). Since the functions of the memory 390 and the memory 290 are similar, reference may be made to the memory 290 for relevant points, and thus, detailed description thereof is omitted here.

Illustratively, the memory 390 includes an image control module 3904, a second audio control module 3906, an external instruction recognition module 3907, a communication control module 3908, a light receiving module 3909, an operating system 3911, and other application programs 3912, a browser module 3913, and the like. The first controller 210 performs operations such as: the system comprises an image control function, a display control function, an audio control function, an external instruction identification function, a communication control function, an optical signal receiving function, an electric power control function, a software control platform supporting various functions, a browser function and other various functions.

Differently, the external instruction recognition module 2907 of the first controller 210 and the external instruction recognition module 3907 of the second controller 310 may recognize different instructions.

For example, when an image receiving device such as a camera is connected to the second controller 310, the external instruction recognition module 3907 of the second controller 310 may include an image recognition module 2907-1, a graphic database is stored in the image recognition module 3907-1, and when the camera receives an external graphic instruction, the camera corresponds to the instruction in the graphic database to perform instruction control on the display device. Since the voice receiving device and the remote controller are connected to the first controller 210, the external command recognition module 2907 of the first controller 210 may include a voice recognition module 2907-2, a voice database is stored in the voice recognition module 2907-2, and when the voice receiving device receives an external voice command or receives an external voice command, the voice receiving device and the like perform a corresponding relationship with a command in the voice database to perform command control on the display device. Similarly, the control device 100 such as a remote controller is connected to the first controller 210, and the button command recognition module 2907-3 performs command interaction with the control device 100.

Fig. 7 is a block diagram illustrating a configuration of a software system in the display device 200 according to the exemplary embodiment.

With respect to the first controller 210, as shown in FIG. 7, the operating system 2911, which includes executing operating software for handling various basic system services and for performing hardware related tasks, acts as an intermediary between applications and hardware components for performing data processing.

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

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

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

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

The user interface module 2911-3 is configured to provide an object for displaying a user interface, so that each application program can access the object, and user operability can be achieved.

Control applications 2911-4 for controlling process management, including runtime applications and the like.

The event transmission system 2914 may be implemented within the operating system 2911 or within the application 2912. In some embodiments, an aspect is implemented within the operating system 2911, as well as within the application 2912, for listening for various user input events, and will implement one or more sets of predefined operations in response to the identification of various events or sub-events, depending on the various event references.

The event monitoring module 2914-1 is configured to monitor an event or a sub-event input by the user input interface.

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

The event or sub-event refers to an input detected by one or more sensors in the display device 200 and an input of an external control device (e.g., the control apparatus 100). Such as: the method comprises the following steps of inputting various sub-events by voice, inputting sub-events by gesture of gesture recognition, inputting sub-events by remote control key commands of the control device and the like. Illustratively, the one or more sub-events in the remote control include a variety of forms including, but not limited to, one or a combination of key presses up/down/left/right/, ok keys, key presses, and the like. And non-physical key operations such as move, hold, release, etc.

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

Since the operating system 3911 of the first controller 310 is similar to the operating system 2911 of the first controller 210, reference may be made to the operating system 2911 for relevant points, and a description thereof will not be provided herein.

As shown in fig. 8, the application layer of the display device contains various applications that can be executed at the display device 200.

The application layer 2912 of the first controller 210 may include, but is not limited to, one or more applications such as: a video-on-demand application, an application center, a game application, and the like. The application layer 3912 of the second controller 310 may include, but is not limited to, one or more applications such as: live tv applications, media center applications, etc. It should be noted that what applications are respectively contained in the second controller 310 and the first controller 210 is determined according to an operating system and other designs, and the application does not need to be specifically limited and divided to the applications contained in the second controller 310 and the first controller 210.

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

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

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

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

Since the second controller 310 and the first controller 210 may have independent operating systems installed therein, there are two independent but interrelated subsystems in the display apparatus 200. For example, Android (Android) and various APPs may be independently installed on the second controller 310 and the first controller 210, and may all realize a certain function, and the second controller 310 and the first controller 210 cooperate to realize a certain function.

A schematic diagram of a user interface in a display device 200 according to an exemplary embodiment is illustrated in fig. 9. As shown in fig. 9, the user interface includes a first diagram display area 2011 and a second diagram display area 2021. The first diagram display area 2011 and the second diagram display area 2021 have substantially the same function, and only the first diagram display area 2011 is described in an important manner below. Illustratively, among other things, the first view display 2011 includes layout of one or more different items. And a selector indicating that the item is selected is also included in the user interface, and a position of the selector is movable by a user input to change a selection of a different item.

In some embodiments, the first view display area 2011 is a scalable view display. "scalable" may mean that the first view display area 2011 is scalable in size or proportion on the screen, or that the items in the view display 201 are scalable in size or proportion on the screen.

"item" refers to a visual object displayed in a view display area of a user interface in the display device 200 to represent corresponding content, such as icons, thumbnails, video clips, and the like. For example: the items may represent movies, image content or video clips of a television show, audio content of music, applications, or other user access content history information.

Further, the item may represent an interface or a collection of interfaces on which the display device 200 is connected to an external device, or may represent a name of an external device connected to the display device, or the like. Such as: a signal source input Interface set, or a High Definition Multimedia Interface (HDMI), a USB Interface, a PC terminal Interface, and the like.

It should be noted that: the view display area may present Video chat project content or application layer project content (e.g., web page Video, Video On Demand (VOD) presentations, application screens, etc.).

A "selector" is used to indicate where any item has been selected, such as a cursor or a focus object. Positioning the selection information input according to an icon or menu position touched by the user in the display device 200 may cause movement of a focus object displayed in the display device 200 to select a control item, one or more of which may be selected or controlled.

The focus object refers to an object that moves between items according to user input. Illustratively, the focus object position is implemented or identified by drawing a thick line through the item edge. In other embodiments, the focus form is not limited to an example, and may be a form such as a cursor that is recognizable by the user, either tangible or intangible, such as in the form of a 3D deformation of the item, or may change the identification of the border lines, size, color, transparency, and outline and/or font of the text or image of the item in focus.

The event transmission system 2914, which may monitor user input for each predefined event or sub-event, provides control of the identification of the event or sub-event directly or indirectly to the interface layout management module 2913.

The interface layout management module 2913 is configured to monitor the state of the user interface (including the position and/or size of the view partition, the item, the focus or the cursor object, the change process, and the like), and according to the event or the sub-event, may perform a modification on the layout of the size and position, the hierarchy, and the like of the view display area, and/or adjust or modify the layout of the size or/and position, the number, the type, the content, and the like of the layout of various items in the view display area. In some embodiments, the layout is modified and adjusted, including with or without displaying on the screen the content of the items in the view sections or view sections.

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

In some embodiments, the user may input a user command at a user interface displayed on the display device 200, and the user input interface receives the user input command through the user interface. 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.

A "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables the conversion of the internal form of information to a form acceptable to the user. A common presentation form of a user interface is a Graphical User Interface (GUI), which refers to a user interface that is displayed in a graphical manner in relation to the operation of a computer. The interface element may be an icon, a window, a control, or the like, 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, or a Widget.

The scheme of the embodiment of the application can be applied to the display device with double display screens as shown in fig. 3A, and can also be applied to the display device with single display screen as shown in fig. 3B.

It should be noted that, for a display device having dual display screens, the relative positions of the two display screens are not particularly limited in this embodiment. The two display screens can be arranged up and down, can also be arranged left and right, and of course, other arrangement modes can also be adopted. The drawings are illustrated by way of examples of the above arrangements.

In addition, for a display device having dual display screens, one display screen is generally large, referred to as a large screen, or home screen; the other display screen is smaller and is called a small screen, or a secondary screen (secondary screen). The large screen is used to display main playing contents, such as: image data of multimedia, the small screen being used to display auxiliary information, such as: weather information, time information, etc.

The display device of the present embodiment has a function of playing multimedia data. Fig. 10 is a schematic diagram illustrating a playing principle of multimedia data by a display device according to an embodiment of the present application. The multimedia data includes audio data and image data. When the display device plays the multimedia data, the multimedia data is analyzed into image data and audio data, and the image data and the audio data are respectively processed by adopting different data processing paths. As shown in fig. 10, the image data is output to the display screen after passing through the image quality processing path, so that the display screen displays the image data; the audio data is output to the loudspeaker after passing through the sound effect processing path, so that the loudspeaker reproduces sound.

With continued reference to fig. 10, the image quality processing path is used to perform image quality processing on the image data. The processing procedure of the image quality processing path may include: noise reduction processing (TNR), de-interlacing (DEI), scaling (Scaler), motion compensation processing (FRC), and the like. Among them, digital images are often affected by noise interference from imaging devices and the external environment during digitization and transmission, and thus, digital images are referred to as noisy images or noisy images. Noise in the digital image can be reduced by the noise reduction process. The de-interlacing process refers to converting an interlaced image into a progressive image to eliminate or reduce the disadvantages of the interlaced scan. The purpose of the scaling process is two: (1) fitting the image to the size of the display area; (2) a thumbnail of the corresponding image is generated. The dynamic compensation process adopts a dynamic mapping system, and adds a frame of motion compensation frame between two traditional frames of images, so that the picture moving at high speed can be natural and clear. In this embodiment, the specific processing procedure of the image quality processing path may be implemented in a video processor of the display device.

In practical applications, the image quality processing path may include other processing procedures besides the above processing procedures, for example: brightness processing, contrast processing, chroma processing, hue processing, sharpness processing, dynamic contrast processing, gamma correction processing, color temperature processing, white balance processing, color correction processing, brightness dynamic processing, etc., which will not be described in detail in this embodiment.

With continued reference to fig. 10, the sound effect processing path is used to perform sound effect processing on the audio data. The processing process of the sound effect processing path mainly comprises the following steps: digital Theater sound System (DTS) sound processing, dolby panoramic sound (ATMOS) sound processing, Graphic Equalizer (GEQ) processing, Parametric Equalizer (PEQ) processing, and the like.

The DTS sound effect processing and the ATMOS sound effect processing are used for processing sound effects and improving the playing effect of the sound. The GEQ can visually reflect the called equalization compensation curve through the distribution of push-pull keys on the panel, the lifting and attenuation conditions of each frequency are clear at a glance, a constant Q value technology is adopted, each frequency point is provided with a push-pull potentiometer, and the frequency bandwidth of the filter is always unchanged no matter a certain frequency is lifted or attenuated. The conventional professional equalizer divides the 20 Hz-20 kHz signal into 10 segments, 15 segments, 27 segments and 31 segments for adjustment. Thus, frequency equalizers with different sections are respectively selected according to different requirements. Generally, the frequency points of a 10-segment equalizer are distributed at octave intervals, a 15-segment equalizer is an 2/3 octave equalizer and is used in professional sound reinforcement in a general situation, and a 31-segment equalizer is a 1/3 octave equalizer, and most of the frequency points are in a situation that the more important needs fine compensation.

The PEQ can finely adjust various parameters of the equalization adjustment, is additionally arranged on a sound console, but is also provided with an independent parametric equalizer, and the adjusted parameter contents comprise frequency bands, frequency points, gains, quality factor Q values and the like, so that the sound can be beautified and modified, the sound style is more vivid and prominent, and the required artistic effect can be achieved in a colorful mode. In this embodiment, the specific processing procedure in the sound effect processing path may be implemented in an audio processor of the display device.

In the practical application process, compared with the sound effect processing process of the audio data, the time consumption of the image quality processing process of the image data is long, so that the time required for the image data to reach the display screen is longer than the time required for the audio data to reach the loudspeaker, and the phenomenon of asynchronous sound and picture is easily caused.

The reason why the image quality processing process of the image data takes a long time is analyzed as follows. When the image quality processing path performs processing of one frame of image data, it is necessary to read not only the image data of the current frame but also the image data of several subsequent frames. Further, the current frame is processed based on the image data of the current frame and the next several frames, and then the processed data is written in the current frame. In the process of processing the current frame, image data of the next several frames need to be read, which results in a large time consumption.

This is illustrated below with reference to fig. 11. Fig. 11 is a schematic diagram illustrating an image quality processing process according to an embodiment of the present application. As shown in fig. 11, assuming that the threshold value of the number of read frames is 4, it indicates that image data of the current frame and the next 3 frames need to be read each time. For example, if the current frame to be processed is the nth frame, the image data of the nth frame, the (n + 1) th frame, the (n + 2) th frame and the (n + 3) th frame need to be read, and after the 4 frames of image data are processed, the processing result is written into the nth frame. The processing procedures of the (n + 1) th frame, the (n + 2) th frame and the subsequent frames are similar, and are not described herein again. Assuming that the refresh rate is 60HZ, if the threshold value of the number of read frames is 4, it is necessary to read 4 frames of image data, which corresponds to 1/60 × 4 to 66ms of image processing time per frame.

In order to solve the problem of asynchronous sound and picture caused by long time consumption of the image quality processing process of image data, at present, an audio delay processing module is also included in a sound effect processing channel. As shown in fig. 10, after the audio processing module performs the audio processing on the audio data, the audio data needs to pass through an audio delay processing module. The audio delay processing module is used for caching the audio data, outputting the audio data to the loudspeaker after caching for a certain time, and ensuring that the time when the audio data reaches the loudspeaker is the same as the time when the image data reaches the display screen, so that the phenomenon of sound and picture asynchronization is eliminated. Therefore, the audio delay processing module needs to know the duration of buffering the audio data.

In this embodiment, for convenience of description, the time consumed for processing the image data by the image quality processing path is referred to as "image delay duration (PQDelay)", and as can be seen from fig. 11 and the related description, the image delay duration is related to the reading frame number threshold of the video processor, and after the reading frame number threshold of the video processor is determined, the image delay duration corresponding to the video processor is also determined. The duration of the audio data buffering by the audio delay processing module is referred to as "audio delay duration (AudioDelay)".

In one application scenario, the audio delay duration of the audio delay processing module may be set by the multimedia middleware module. The multimedia middleware module may be provided in a controller of the display device. The multimedia middleware module is a module for maintaining the playing logic of the non-physical signal source. For a display device, a signal source may be divided into a physical signal source and a non-physical signal source. The physical signal source refers to a signal source such as a High Definition Multimedia Interface (HDMI), an Analog TV (ATV), A Video (AV), and a Digital TV (DTV), and the non-physical signal source refers to a network broadcast source or a usb disk broadcast source. That is to say, the multimedia middleware module mainly maintains the playing logic of the network video or the video playing of the usb disk.

Specifically, when the network video or the U disk video is played, the multimedia middleware module acquires the image delay time of the image quality processing path from the video processor, and sets the acquired image delay time as the audio delay time to the audio delay processing module, so that the processing time of the image quality processing path on the image data is the same as the processing time of the audio processing path on the audio data, and the synchronous playing of the sound and the picture is ensured.

In another application scenario, the TV middleware module may set the audio delay time of the audio delay processing module. Wherein the TV middleware module may also be provided in the controller of the display device. The TV middleware module is mainly used to implement two functions: (1) in response to User Interface (UI) settings such as volume increase and decrease, sound settings (sound mode, output device, equalization setting, sound and picture synchronization, etc.), image settings (image mode, brightness, contrast), etc. (2) And the playing logic is responsible for maintaining the physical signal source (HDMI/ATV/AV/DTV and the like). For example: detecting whether the physical signal source is stable, and setting sound parameters when the physical signal source is stable.

Specifically, in an on-screen display (OSD) menu of the display device, a sound-picture synchronization function option is provided. The essence of the sound-picture synchronization function is to adjust the audio delay time of the audio delay processing module.

Fig. 12A to 12D are schematic diagrams illustrating an OSD menu-saving picture synchronization function according to an embodiment of the present application. Taking a two-screen display device as an example, assume that an OSD menu is displayed in a large screen. As shown in fig. 12A, when the user perceives that the picture-in-tune is out of sync, the setup function can be called up through the OSD menu. The setting function includes: image settings, sound settings, network settings, bluetooth settings, AI settings, general settings, etc. After the user selects the sound setting, the display device displays a sound setting interface, as shown in fig. 12B.

The advanced setting may be selected at the sound setting interface so that the display device displays the advanced setting interface as shown in fig. 12C. The advanced setting interface comprises an equalizer, sound balance, sound and picture synchronization and automatic volume control.

When the user selects the sound-picture synchronization function, the display device displays a sound-picture synchronization setting interface as shown in fig. 12D. In the sound-picture synchronization setting interface shown in fig. 12D, the user can set the value of the sound-picture synchronization function.

Referring to fig. 12D, it is assumed that the range of values of the sound-picture synchronization function is-10 to 10, and each value corresponds to an audio delay duration. Specifically, the interval between two adjacent values of the sound-picture synchronization function is 10ms, and the value 0 represents 100 ms. Setting the audio delay time to 110ms when the user setting value is equal to 1, setting the audio delay time to 120ms when the user setting value is equal to 2, setting the audio delay time to 90ms when the user setting value is equal to-1, and so on. Therefore, the user can change the audio delay time length by adjusting the value of the sound-picture synchronization function, so that the synchronization of the audio data and the image data is ensured.

However, in a scene where the display device plays a network video or a usb disk video, the multimedia middleware module and the TV middleware module may both set the audio delay duration of the audio delay processing module, and the processing flows of the multimedia middleware module and the TV middleware module are independent of each other, so that the two flows may interfere with each other. Two possible interference scenarios are illustrated below in conjunction with fig. 13A and 13B.

Fig. 13A illustrates a schematic diagram of one possible interference scenario. As shown in fig. 13A, assuming that the image delay time of the multimedia middleware module from the video processor to the image quality processing path is 150ms when the network video or the usb disk video is played, the multimedia middleware module sets the audio delay time to 150ms in the video playing start flow. However, during the video playing process, the user may adjust the sound and picture synchronization function through the UI menu, and set the Value of the sound and picture synchronization function to 1, and the TV middleware module sets the audio delay duration to 110ms (100+10 Value to 110ms) in the processing flow responding to the UI, so that the audio delay duration of the audio delay processing module is changed from 150ms to 110ms, that is, the 110ms set by the TV middleware module covers the 150ms set by the multimedia middleware module before.

Fig. 13B illustrates another possible interference scenario. As shown in fig. 13B, assuming that the user first adjusts the audio and video synchronization function through the UI menu, and the Value of the audio and video synchronization function is set to Value 1, the TV middleware module sets the audio delay time to 110ms (100+10 Value 110ms) in the processing flow of responding to the UI. Then, when the network video or the usb disk video is played, the image delay time of the multimedia middleware module obtaining the image quality processing path from the video processor is 150ms, and the audio delay time of the multimedia middleware module in the video playing flow is also set to 150 ms. In this way, the audio delay duration of the audio delay processing module is changed from 110ms to 150ms, i.e. 150ms set by the multimedia middleware module overrides 110ms set by the TV middleware module before.

Therefore, the embodiment of the application provides a sound and picture synchronization method, which can avoid the problem that the video playing starting process and the UI interface response process are interfered with each other.

The technical solution of the present application will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Fig. 14 is a flowchart illustrating a sound-picture synchronization method according to an embodiment of the present application. As shown in fig. 14, the method of the present embodiment includes:

s501: acquiring sound and picture synchronization setting parameters, wherein the sound and picture synchronization setting parameters are used for indicating that the output delay of the audio data relative to the image data is delayed when the display equipment plays sound and picture data comprising the audio data and the image data.

S502: and acquiring the image delay time of the display equipment, wherein the image delay time is used for indicating the time required by the display equipment for performing image quality processing on the image data.

S503: and determining the audio delay time of the display equipment according to the sound and picture synchronous setting parameters and the image delay time.

In this embodiment, S501 to S503 may be executed by a multimedia middleware module in the controller, and may also be executed by a TV middleware module in the controller. Illustratively, in the video playing starting process, the multimedia middleware module may determine the audio delay duration of the display device and set the audio delay duration into the audio delay processing module of the audio processor by performing S501 to S503. In the flow of responding to the UI interface, the TV middleware module may determine the audio delay time period of the display device by performing S501 to S503, and set the determined audio delay time period to the audio delay processing module of the audio processor.

The sound and picture synchronization setting parameter refers to a value set by a user for a sound and picture synchronization function in a UI interface (for example, the interface shown in fig. 12D). The present embodiment does not limit the value range of the sound-picture synchronization setting parameter, and the sound-picture synchronization setting parameter may be a positive number, a negative number, and zero.

In some embodiments, the sound-picture synchronization setting parameter is an integer in a preset value range, for example: -an integer between 10 and 10. In this embodiment, the sound-picture synchronization setting parameter indicates that the output of the audio data is delayed with respect to the image data when the display apparatus plays the sound-picture data including the audio data and the image data. Illustratively, there may be a mapping relationship between the audio-video synchronization setting parameter and the output delay, and the output delay of the audio data relative to the image data may be obtained according to the value of the audio-video synchronization setting parameter and the mapping relationship. Assuming that the output delay of the audio data relative to the image data is DeltaDelay, and the Value of the sound-picture synchronization setting parameter is Value, the mapping relationship between the two may be:

DeltaDelay＝Value*DelayValue

wherein, DelayValue represents the preset unit delay duration, that is, the delay between two adjacent values of the sound and picture synchronization setting parameter, for example: DelayValue may be 10 ms. Thus, the output delay of the audio data relative to the image data can be determined according to the sound-picture synchronization setting parameter and the preset unit delay time length.

Illustratively, when the value of the sound-picture synchronization setting parameter set in the UI interface by the user is 1, the output delay of the audio data with respect to the image data is 10ms, when the value of the sound-picture synchronization setting parameter set in the UI interface by the user is 0, the output delay of the audio data with respect to the image data is 0ms, when the value of the sound-picture synchronization setting parameter set in the UI interface by the user is-1, the output delay of the audio data with respect to the image data is-10 ms, and so on.

In one possible application scenario, S501 to S503 are executed by a TV middleware module in the controller. In this scenario, the TV middleware module may receive an operation instruction input by a user for the audio-visual synchronization function through the user interface, and obtain an audio-visual synchronization setting parameter Value from the operation instruction. Furthermore, the TV middleware module may determine the output delay DeltaDelay of the audio data relative to the image data according to the parameter Value for setting the audio-video synchronization and the preset unit delay Value.

The TV middleware module may also obtain from the video processor an image delay duration PQDelay of the display device, which indicates a duration required for the display device to perform the image quality processing on the image data. Furthermore, the TV middleware module may determine an audio delay time period of the display device according to an output delay DeltaDelay of the audio data with respect to the image data and an image delay time period PQDelay. For example, assuming that the audio delay duration is AudioDelay, then:

AudioDelay＝DeltaDelay+PQDelay＝Value*DelayValue+PQDelay

in this way, the TV middleware module may set the audio delay duration AudioDelay to the audio delay processing module of the audio processor.

In some embodiments, in the application scenario, after the TV middleware module obtains the sound-picture synchronization setting parameter from the operation instruction, the TV middleware module may further set the value of the sound-picture synchronization attribute in the system file of the display device as the sound-picture synchronization setting parameter. The system file refers to a global file which is located in the display device and can be acquired by each process.

Illustratively, a plurality of attributes and a value of each attribute are recorded in the system file, and both the attributes and the values can be in a string format. For example, if the sound-picture synchronization setting parameter acquired by the TV middleware module in S501 is 2, the value of the attribute sys. Therefore, when other modules need to acquire the sound and picture synchronous setting parameters, the system file can be read to acquire the sound and picture synchronous setting parameters.

In another possible application scenario, S501 to S503 are executed by a multimedia middleware module of the controller. In this scenario, when the multimedia middleware module receives a play instruction of audio/video data (e.g., a play start instruction of a network video or a usb disk video), the multimedia middleware module may read a Value of an audio/video synchronization attribute (e.g., a Value of an attribute sys. Furthermore, the multimedia middleware module can determine the output delay DeltaDelay of the audio data relative to the image data according to the sound-picture synchronous setting parameter Value and the preset unit delay duration DelayValue.

The multimedia middleware module can also acquire an image delay time PQdelay of the display device from the video processor, wherein the image delay time indicates the time required for the display device to perform image quality processing on the image data. Furthermore, the multimedia middleware module may determine the audio delay time of the display device according to the output delay DeltaDelay of the audio data relative to the image data and the image delay time PQDelay. For example, assuming that the audio delay duration is AudioDelay, then:

AudioDelay＝DeltaDelay+PQDelay＝Value*DelayValue+PQDelay

in this way, the multimedia middleware module may set the audio delay duration AudioDelay to the audio delay processing module of the audio processor.

In some embodiments, the multimedia middleware module may set the audio delay time duration AudioDelay of the display device to a preset value after the playing of the audio and video data is finished. For example, the audio delay time duration AudioDelay is set to 0. Therefore, the influence of the sound and picture synchronization scheme of the embodiment on the non-video playing scene can be avoided, for example, the problems of the delay of the key sound of the remote controller in the non-video playing scene and the like can be avoided.

Therefore, the method of the embodiment can be applied to the video playing starting process, and the multimedia middleware module in the controller determines the audio delay time; it can also be applied to UI interface response flow, where the audio delay duration is determined by the TV middleware module in the controller. Moreover, the audio delay duration determined by the multimedia middleware module in the video playing starting process is the same as the audio delay duration determined by the TV middleware module in the UI interface response process, so that the situation that the two processes shown in fig. 13A and 13B interfere with each other can be avoided, the problem of audio-visual asynchronism can be solved, and the audio-visual watching experience of the user can be improved.

Whether the method of the present embodiment is performed by the TV middleware module or the multimedia middleware module, the image delay time period may be acquired from the video processor by running a driver of the video processor stored in the memory when the image delay time period of the display device is acquired in S502. The driver of the video processor is mainly used for reading or setting the state of the video processor.

Fig. 15 is a schematic structural diagram of a display device according to an embodiment of the present application. As shown in fig. 15, the memory stores a driver and related data for the video processor, the audio processor, and the like. The TV middleware module and the multimedia middleware module in the controller can acquire the image delay time length from the video processor by running a driving program of the video processor. Similarly, after the TV middleware module and the multimedia middleware module in the controller determine the audio delay time, the audio delay time may be written into the audio processor by running a driver of the audio processor, for example, the audio delay time is written into an audio delay processing module of the audio processor.

S504: and controlling the playing time of the audio data according to the audio delay time length so that the audio data and the image data are synchronously played.

After the above S501 to S503, the audio delay processing module of the audio processor obtains the audio delay time, so that in the playing process of the audio and video data, the playing time of the audio data can be controlled according to the audio delay time, so that the audio data and the image data are played synchronously. In some embodiments, one way to control the playback time of audio data may be: and setting a buffer area with a certain size in the audio processor according to the audio delay time, caching the audio data output by the audio processing module in the buffer area, and then outputting the audio data to the loudspeaker.

The sound and picture synchronization method provided by the embodiment comprises the following steps: acquiring sound and picture synchronous setting parameters and acquiring image delay time of the display equipment; determining the audio delay time of the display equipment according to the sound and picture synchronous setting parameters and the image delay time; and controlling the playing time of the audio data according to the audio delay time length so that the audio data and the image data are played synchronously. When the method of the embodiment is applied to a video playing starting process and a UI (user interface) response process, the determined audio delay time lengths in the two processes are the same, so that the condition that the two processes interfere with each other can be avoided, the problem of asynchronization of sound and pictures can be solved, and the sound and picture watching experience of a user is improved.

Fig. 16 is a flowchart illustrating a sound-picture synchronization method according to another embodiment of the present application. Fig. 16 illustrates a specific implementation process of the video launch flow and the UI interface response flow. S701 to S705 illustrate the processing procedure of the TV middleware module in the UI interface response flow. S706 to S710 exemplify the processing procedure of the multimedia middleware module in the video playing start flow.

As shown in fig. 16, the method of the present embodiment includes:

s701: the TV middleware module receives an operation instruction input by a user aiming at the sound and picture synchronization function through a user interface, and obtains a sound and picture synchronization setting parameter Value from the operation instruction.

The audio and video synchronization setting parameter is used for indicating that when the display equipment plays audio and video data comprising audio data and image data, the audio data is delayed relative to the output of the image data.

S702: the TV middleware module sets the sound-picture synchronization attribute in the system file of the display device as a sound-picture synchronization setting parameter Value.

For example, if the sound-picture synchronization setting parameter acquired in S701 is 2, the value of the attribute sys.

S703: the TV middleware module acquires the image delay time PQDelay from the video processor by running a driver of the video processor.

The image delay time length is used for indicating the time length required by the display equipment for performing image quality processing on the image data.

S704: and the TV middleware module determines the audio delay time duration AudioDelay of the display equipment according to the parameter Value and the image delay time duration PQDelay synchronously set by the sound and picture.

AudioDelay＝DeltaDelay+PQDelay＝Value*DelayValue+PQDelay

S705: the TV middleware module writes the audio delay duration AudioDelay into the audio processor by running a driver of the audio processor.

S706: the multimedia middleware module receives a playing instruction of the sound and picture data.

For example, the audio and video data may be network video or U disk video.

S707: and the multimedia middleware module reads the Value of the sound-picture synchronization attribute from the system file of the display equipment to obtain a sound-picture synchronization setting parameter Value.

For example, a sound-picture synchronization attribute Value in a system file of the display device is read, and the read Value is used as a sound-picture synchronization setting parameter Value.

S708: the multimedia middleware module obtains the image delay time PQdelay from the video processor by running a driver of the video processor.

S709: and the multimedia middleware module determines the audio delay time duration AudioDelay of the display equipment according to the parameter Value and the image delay time duration PQDelay synchronously set by the sound and picture.

AudioDelay＝DeltaDelay+PQDelay＝Value*DelayValue+PQDelay

S710: the multimedia middleware module writes the audio delay duration AudioDelay into the audio processor by running a driver of the audio processor.

Through the UI interface response flow of S701 to S705 above, or after the video start-up flow of S706 to S710 above, the audio delay processing module of the audio processor may obtain the audio delay duration AudioDelay, and further, the audio delay processing module may control the playing time of the audio data according to the audio delay duration AudioDelay, so that the audio data and the image data are played synchronously.

Therefore, when the method of the embodiment is applied to a video playing starting process and a UI (user interface) response process, the audio delay time lengths determined in the two processes are the same, so that the condition that the two processes interfere with each other can be avoided, the problem of asynchronization of sound and pictures can be solved, and the sound and picture watching experience of a user is improved.

An embodiment of the present application provides a display device, including: display screen, speaker, video processor, audio processor and controller. Wherein the content of the first and second substances,

a display screen configured to present screen content; a speaker configured to reproduce sound; the video processor is configured to carry out image quality processing on image data and output the image data after the image quality processing to the display screen; a controller configured to: acquiring a sound and picture synchronous setting parameter, acquiring an image delay time from the video processor, determining an audio delay time according to the sound and picture synchronous setting parameter and the image delay time, and configuring the audio delay time to the audio processor; the audio processor is configured to control the time of outputting the audio data to the speaker according to the audio delay time length, so that the time when the audio data reaches the speaker is the same as the time when the image data reaches the display screen.

In some embodiments, the display device further comprises: the user graphical interface is configured to receive an operation instruction input by a user; accordingly, the controller is configured to: and receiving an operation instruction input by a user aiming at the sound and picture synchronization function from the user graphical interface, and acquiring the sound and picture synchronization setting parameters from the operation instruction.

In some embodiments, the controller is further configured to: and setting the value of the sound-picture synchronization attribute in the system file of the display device as the sound-picture synchronization setting parameter.

In some embodiments, the controller is configured to: and when a playing instruction is received, reading the value of the sound-picture synchronization attribute from the system file of the display equipment to obtain the sound-picture synchronization setting parameter.

In some embodiments, the controller is further configured to: and when a playing ending instruction is received, updating the audio delay time length to a preset value, and configuring the updated audio delay time length to the audio processor.

In some embodiments, the controller is configured to: according to the sound and picture synchronous setting parameters and preset unit delay time, determining the output delay of the audio data relative to the image data; and determining the audio delay time length according to the output delay of the audio data relative to the image data and the image delay time length.

In some embodiments, the controller is configured to: acquiring the image delay time length from the video processor by operating a driving program of the video processor; and configuring the audio delay time length to the audio processor by operating a driving program of the audio processor.

The display device provided by the embodiment of the application can be used for realizing the sound and picture synchronization method in the above embodiments, and the realization principle and the technical effect are similar, which are not described herein again.

Fig. 17 is a schematic structural diagram of a sound-picture synchronization apparatus according to an embodiment of the present application. As shown in fig. 8, the sound-picture synchronization apparatus 800 of the present embodiment includes: a first acquisition section 801, a second acquisition section 802, a determination section 803, and an audio delay processing section 804. Wherein the content of the first and second substances,

a first acquisition section 801 configured to acquire a sound-picture synchronization setting parameter for instructing the display device to delay output of audio data with respect to image data when the sound-picture data including the audio data and the image data is played; a second acquisition unit 802 configured to acquire an image delay time of the display device, where the image delay time is used to instruct the display device to perform image quality processing on the image data; a determining unit 803, configured to determine an audio delay time of the display device according to the audio-video synchronization setting parameter and the image delay time; and an audio delay processing unit 804, configured to control the playing time of the audio data according to the audio delay duration, so that the audio data and the image data are played synchronously.

In some embodiments, the first obtaining portion 801 is specifically configured to: receiving an operation instruction input by a user aiming at the sound and picture synchronization function through a user interface; and acquiring sound and picture synchronous setting parameters from the operation instruction.

In some embodiments, the first obtaining portion 801 is further configured to: and setting the value of the sound-picture synchronization attribute in the system file of the display device as the sound-picture synchronization setting parameter.

In some embodiments, the first obtaining portion 801 is specifically configured to: and when a playing instruction of the sound and picture data is received, reading a sound and picture synchronization attribute value from a system file of the display equipment to obtain the sound and picture synchronization setting parameter.

In some embodiments, the determining section 803 is further configured to: and after the audio and video data are played, updating the audio delay time of the display equipment to a preset value.

In some embodiments, the determining section 803 is specifically configured to: determining the output delay of the audio data relative to the image data according to the sound-picture synchronous setting parameters and the preset unit delay duration; and determining the audio delay time length of the display equipment according to the output delay of the audio data relative to the image data and the image delay time length.

In some embodiments, the second obtaining portion 802 is specifically configured to: acquiring the image delay time length from a video processor by operating a driving program of the video processor; the determining part 803 is further configured to configure the audio delay duration to the audio processor by running a driver of the audio processor.

The sound and picture synchronization apparatus provided in this embodiment may be used to implement the technical solutions in the above method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 18 is a schematic structural diagram of a display device according to an embodiment of the present application. As shown in fig. 18, the display device 900 of the present embodiment includes: a processor 901 and a memory 902; a memory 902 for storing a computer program; a processor 901, configured to execute a computer program stored in a memory to implement the sound-picture synchronization method in the foregoing embodiments. Reference may be made in particular to the description relating to the method embodiment described above.

Alternatively, the memory 902 may be separate or integrated with the processor 901.

When the memory 902 is a device separate from the processor 901, the display apparatus 900 may further include: a bus 903 for connecting the memory 902 and the processor 901.

The display device provided in this embodiment may be configured to execute the technical solution in any of the method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

An embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium includes a computer program, and the computer program is used to implement a technical solution in any one of the above method embodiments.

An embodiment of the present application further provides a chip, including: the system comprises a memory, a processor and a computer program, wherein the computer program is stored in the memory, and the processor runs the computer program to execute the technical scheme of any one of the method embodiments.

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. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.

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

In addition, functional modules in the embodiments of the present application may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit. The unit formed by the modules can be realized in a hardware form, and can also be realized in a form of hardware and a software functional unit.

The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present application.

It should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in the incorporated application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor.

The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile storage NVM, such as at least one disk memory, and may also be a usb disk, a removable hard disk, a read-only memory, a magnetic or optical disk, or the like.

The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.

The storage medium may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the storage medium may reside as discrete components in an electronic device or host device.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

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

Claims

1. A display device, comprising:

a display screen configured to present screen content;

a speaker configured to reproduce sound;

2. The display device according to claim 1, characterized in that the display device further comprises:

accordingly, the controller is configured to:

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

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

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

6. The display device according to any one of claims 1 to 5, wherein the controller is configured to:

7. The display device according to any one of claims 1 to 5, wherein the controller is configured to:

acquiring the image delay time length from the video processor by operating a driving program of the video processor;

and configuring the audio delay time length to the audio processor by running a driving program of the audio processor.

8. A sound and picture synchronization method is applied to a display device, and comprises the following steps:

acquiring sound and picture synchronous setting parameters;

acquiring an image delay time of the display device, wherein the image delay time is used for indicating a time required by the display device for performing image quality processing on image data;

and controlling the playing time of the audio data according to the audio delay time length so as to synchronously play the audio data and the image data.

9. A display device, comprising: memory, a processor and a computer program, the computer program being stored in the memory, the processor running the computer program to perform the method of claim 8.

10. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a computer program which, when executed by a processor, implements the method of claim 8.