CN113573108B

CN113573108B - Display apparatus

Info

Publication number: CN113573108B
Application number: CN202010350776.1A
Authority: CN
Inventors: 李见; 刘文杰
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2023-04-25
Anticipated expiration: 2040-04-28
Also published as: CN113573108A

Abstract

The application provides a display device. The display device includes: a first display configured to display first image content; a second display configured to display second image content; a first backlight assembly configured to provide a backlight light source to a first display screen; a second backlight assembly configured to provide a backlight light source to a second display screen; the first controller is configured to control the first display screen to display first image content in a first mode after receiving a starting instruction; a second controller configured to control the second display screen to display second image content in the first mode after receiving a power-on instruction from the first controller; the power-on instruction is used for indicating that the display device is in a first mode. Thereby realizing the double-screen display of the display device.

Description

Display apparatus

Technical Field

The application relates to the technical field of display, in particular to display equipment.

Background

At present, it is often desired that a display device such as a television set can display a broadcast screen and also display related contents such as a search page, weather conditions, time information, and the like. If a display screen is adopted, the display device needs to close the playing picture when calling the related content, and after the processing of the related content is completed, normal display of the playing picture is restored.

Accordingly, there is a need for a multi-screen display device to solve the above-mentioned problems.

Disclosure of Invention

The application provides a display device to realize double-screen display of the display device.

In some embodiments, the present application provides a display device comprising: a first display configured to display first image content; a second display configured to display second image content; a first backlight assembly configured to provide a backlight light source to the first display screen; a second backlight assembly configured to provide a backlight light source to the second display screen; the first controller is configured to control the first display screen to display first image content in a first mode after receiving a starting-up instruction; a second controller configured to control the second display screen to display second image content in a first mode after receiving the power-on instruction from the first controller; the starting-up instruction is used for indicating that the display equipment is in a first mode.

In some embodiments, further comprising: a second TCON circuit configured to drive the second display screen to present second image content; the second controller is specifically configured to control the second display screen to display second image content in the first mode by switching the first pin of the second controller to be connected with the second TCON circuit after the start-up instruction is received.

In some embodiments, the first controller is further configured to control the second display screen to be closed after receiving a start instruction of the application program; the second controller is further configured to control the first display screen to display first image content in a second mode by switching a first pin of the second controller to be connected with the first controller after the second display screen is closed; the starting instruction is used for indicating that the display equipment is in a second mode, and the second mode is different from the first mode.

In some embodiments, the first controller is specifically configured to send an instruction to the second controller after receiving an instruction from a user to start the application, where the instruction is used to instruct the second controller to start the application; the second controller is configured to start the application program based on the instruction, and send the start instruction to the first controller.

In some embodiments, the second backlight driving circuit is configured to control brightness of a backlight light source in the second backlight assembly; and the first controller is specifically configured to control the second backlight driving circuit to be turned off after receiving the starting instruction, and then stop supplying power to the second TCON circuit so as to control the second display screen to be turned off.

In some embodiments, the second controller is further configured to switch the connection of the first pin of the second controller and the second TCON circuit to the connection of the first pin of the second controller and the first controller after receiving the instruction to close the second display screen from the first controller.

In some embodiments, the second controller is further configured to switch, after a preset period of time has elapsed from sending the start instruction to the first controller, the connection between the first pin of the second controller and the second TCON circuit to the connection between the first pin of the second controller and the first controller.

In some embodiments, the first controller is further configured to control the first display screen to display the first image content in the first mode after receiving an exit instruction of the application program; the second controller is further configured to control the image content displayed by the second display screen to be second image content in a first mode by switching a first pin of the second controller to be connected with the second TCON circuit after receiving an instruction notifying the application to exit from the first controller; and the first controller is configured to control the second display screen to display second image content in the first mode after the first pin of the second controller is switched.

In some embodiments, further comprising: a second backlight driving circuit configured to control brightness of a backlight light source in the second backlight assembly; the first controller is specifically configured to supply power to the second TCON circuit after the first pin of the second controller is connected to the second TCON circuit, and then control the second backlight driving circuit to control the second display screen to display the second image content in the first mode.

In some embodiments, the first controller is further configured to store the first image content in the first mode; the second controller is configured to store second image content in the first mode.

In some embodiments, the second controller is further configured to convert a format of the second image content sent to the second TCON circuit to a format displayable by the second display screen after the first pin of the second controller is connected to the second TCON circuit; the second controller is further configured to convert a format of the first image content sent to the first controller into a format displayable by the first display screen after the first pin of the second controller is connected with the first controller.

In some embodiments, the first controller is further configured to obtain the first image content and/or the second image content from at least one of an image capturing device, a local storage device of the display device, and a network device.

In some embodiments, the second controller is further configured to obtain the first image content and/or the second image content from a local storage device of the image capturing device and/or the display device.

In some embodiments, the second controller is further configured to send a handshake signal to the first controller; the second controller is further configured to obtain the first image content and/or the second image content from the first controller after the first controller receives the handshake signal.

In some embodiments, further comprising: a first TCON circuit configured to drive the first display screen to present first image content; and a first backlight driving circuit configured to control brightness of a backlight light source in the first backlight assembly.

According to the display device, when the display device is electrified, the first controller can receive the startup instruction, and the second controller can also receive the startup instruction through the first controller, so that the first controller can control the first display screen to display first image content in a first mode, the second controller can control the second display screen to display second image content in a second mode, the display device achieves the function of double-screen display, and the effect of double-screen display is achieved.

Drawings

For a clearer description of the technical solutions of the present application or of the prior art, the drawings that are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the present application, and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an operational scenario between a display device and a control apparatus;

FIG. 2a is a schematic diagram of a hardware architecture of a hardware system in the display device of FIG. 1;

FIG. 2b is a schematic diagram of a hardware architecture of a hardware system in a display device;

FIG. 3 is a schematic diagram illustrating a connection relationship between the power panel and the load in FIG. 2 a;

FIG. 4 is a schematic diagram of a power architecture of FIG. 2 a;

FIG. 5 is a block diagram of a hardware architecture of the display device of FIG. 2 a;

FIG. 6 is a schematic diagram of the functional configuration of the display device of FIG. 2 a;

fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present application;

fig. 9 is a schematic diagram of a display device implementing mode switching according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings of the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims of this application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of operation in sequences other than those illustrated or described herein, for example. 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 display device provided by the embodiments of the application can have a single-system display device with a single-display structure. For example, the display device includes: a display screen configured to display a picture image; a sound reproduction apparatus configured to play sound; and a power supply circuit configured to supply power to a load of the display device, the load including a display screen, a sound reproducing apparatus, and the like.

Alternatively, the present application is mainly directed to audio and video synchronization processing of a display device having a dual system and dual display structure, that is, a display device having a first controller (first hardware system), a second controller (second hardware system), a first display screen, and a second display screen, and the structure, function, implementation, and other aspects of the display device having a dual system hardware structure will be described in detail below.

For convenience of use, various external device interfaces are usually provided on the display device, so as to connect different peripheral devices or cables to realize corresponding functions. When the high-definition camera is connected to the interface of the display device, if the hardware system of the display device does not have the hardware interface of the high-pixel camera for receiving the source code, the data received by the camera cannot be presented on the display screen of the display device.

Also, due to the hardware structure, the hardware system of the conventional display device only supports one path of hard decoding resource, and usually only supports video decoding with a resolution of 4K at maximum, so when video chat while watching the network television is to be implemented, in order not to reduce the definition of the network video picture, it is necessary to decode the network video using the hard decoding resource (typically, GPU in the hardware system), and in this case, only the video chat picture can be processed in such a way that the video is soft decoded by a general processor (e.g. CPU) in the hardware system.

The soft decoding is adopted to process the video chat pictures, so that the data processing load of the CPU is greatly increased, and when the data processing load of the CPU is too heavy, the problems of picture blocking or unsmooth can occur. Furthermore, due to the data processing capability of the CPU, when the video chat frame is processed by adopting the soft decoding of the CPU, the multi-channel video call cannot be realized, and when the user wants to perform video chat with a plurality of other users at the same time in the same chat scene, the situation of access blocking occurs.

Based on the above-mentioned aspects, to overcome the above-mentioned drawbacks, the present application discloses a dual-system hardware system architecture to implement multiple video chat data (at least one local video).

The concepts related to the present application will be described with reference to the accompanying drawings. It should be noted that the following descriptions of the concepts are only for making the content of the present application easier to understand, and do not represent a limitation on the protection 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 or/and software code that is capable of performing the functionality associated with that element.

The term "remote control" as used in the various embodiments of the present application refers to a component of an electronic device (such as a display device as disclosed herein) that can typically wirelessly control the electronic device over a relatively short range of distances. The assembly may be connected to the electronic device generally 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 hard keys in a general remote control device with a touch screen user interface.

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

The term "gesture" as used in embodiments of the present application refers to a user behavior that is used to express an intended idea, action, purpose, and/or result by a change in hand or motion of a hand, etc.

The term "hardware system" as used in the various embodiments of the present application may refer to a physical component comprising mechanical, optical, electrical, magnetic devices such as integrated circuits (Integrated Circuit, ICs), printed circuit boards (Printed circuit board, PCBs) with computing, control, storage, input and output functions. In various embodiments of the present application, the hardware system may also be generally referred to as a motherboard (or a chip).

A schematic diagram of an operation scenario between a display device and a control apparatus according to an embodiment is exemplarily shown in fig. 1. As shown in fig. 1, a user may operate the display apparatus 200 by controlling the device 100.

The control device 100 may be a remote controller 100A, which may communicate with the display device 200 through infrared protocol communication, bluetooth protocol communication, zigBee protocol communication, or other short-range communication, and is used to control the display device 200 through wireless or other wired modes. The user may control the display device 200 by inputting user instructions through keys, voice input, control panel input, etc. on the remote controller 100A. Such as: the user can input corresponding control instructions through volume up-down keys, channel control keys, up/down/left/right movement keys, voice input keys, menu keys, on-off keys, etc. on the remote controller 100A to realize the functions of the control display device 200.

The control apparatus 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 network (LAN, local Area Network), a wide area network (WAN, wide Area Network), a wireless local area network (WLAN, wireless Local Area Network), or other networks, and control 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 running on a 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.

By way of example, both the mobile terminal 100B and the display device 200 may be provided with software applications, so that connection communication between the two may be implemented through a network communication protocol, thereby achieving the purpose of one-to-one control operation and data communication. Such as: the mobile terminal 100B and the display device 200 can be made to establish a control instruction protocol, the remote control keyboard is synchronized to the mobile terminal 100B, and the functions of controlling the display device 200 are realized by controlling the user interface on the mobile terminal 100B; the audio/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 device 200 may also be in data communication with the server 300 through a variety of communication means. In various embodiments of the present application, the display device 200 may be permitted to make a 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 device 200.

By way of example, display device 200 receives software program updates, or accesses a remotely stored digital media library, by sending and receiving information, and by electronic program guide (Electronic Program Guide, EPG) interaction. The servers 300 may be one group, may be multiple groups, and may be one or more types of servers. Other web service content such as video on demand and advertising services are provided through the server 300.

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

Wherein the first display 201 and the second display 202 may be used to display different display screens. For example, the first display 201 may be used for displaying a conventional television program, and the second display 202 may be used for displaying auxiliary information such as a notification message, a voice assistant, etc.

In some embodiments, the content displayed on the first display 201 and the content displayed on the second display 202 may be independent of each other and not affect each other. For example, when the first display 201 plays a television program, the second display 202 may display information such as time, weather, air temperature, a reminder message, etc. that is unrelated to the television program.

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

In some embodiments, some or all of the content displayed by the second display 202 may be adjusted to the display of the first display 201. For example, when the first display screen 201 plays the main screen of the video chat, the information such as time, weather, air temperature, and reminding message displayed on the second display screen 202 may be adjusted to the first display screen 201 to display, and the second display screen 202 displays other information.

In addition, the first display 201 displays the multi-party interactive screen while displaying the conventional television program screen, and the multi-party interactive screen does not obstruct the conventional television program screen. The display modes of the traditional television program picture and the multiparty interaction picture are not limited in the application. For example, the present application may set the positions and sizes of the conventional television program picture and the multiparty interactive picture according to the priorities of the conventional television program picture and the multiparty interactive picture.

Taking the example that the priority of the traditional television program picture is higher than that of the multiparty interaction picture, the area of the traditional television program picture is larger than that of the multiparty interaction picture, and the multiparty interaction picture can be positioned at one side of the traditional television program picture or can be suspended in any area of the traditional television program picture.

The display device 200, in one aspect, may be a liquid crystal display, OLED (Organic Light Emitting Diode) display, projection display device; in another aspect, the display device may be a smart television or a display system of a display and a set-top box. The particular display device type, size, resolution, etc. are not limited, and those skilled in the art will appreciate that the display device 200 may be subject to some changes in performance and configuration as desired.

The display device 200 may additionally provide an intelligent network television function of a computer support function in addition to the broadcast receiving television function. Examples include web tv, smart tv, internet Protocol Tv (IPTV), etc. In some embodiments, the display device may not have broadcast receiving television functionality.

As shown in fig. 1, a camera may be connected to or provided on the display device 200, so as to present a picture shot 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, a half screen or any selectable area.

As a connection manner in some embodiments, the camera is connected with the rear shell of the display device through the connection plate, and is fixedly installed in the middle of the upper side of the rear shell of the display device, and as a mountable manner, the camera can be fixedly installed at any position of the rear shell of the display device, so that the image acquisition area of the camera is not blocked by the rear shell, for example, the display orientation of the image acquisition area and the display device is the same.

As another connection mode in some embodiments, the camera is connected with the rear shell of the display device in a liftable manner through a connection plate or other conceivable connector, and a lifting motor is installed on the connector, so that when the user wants to use the camera or has an application program to use the camera, the camera is lifted out of the display device, and when the user does not need to use the camera, the camera can be embedded behind the rear shell, so that the camera is protected from being damaged and privacy security of the user is protected.

As an embodiment, the camera adopted in the application can be 1700 ten thousand pixels, so as to achieve the purpose of ultra-high definition display. In practical use, cameras higher or lower than 1700 ten thousand pixels may also be used.

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

By way of example, a user, via a display device, may conduct video chat with at least one other user while watching a video program. In the display device, the presentation of the video program may be a background picture over which the window of the video chat is displayed. The display device is visual and can be called as having the function of 'chat while watching'.

In some embodiments, in the application scenario of "watch while chat", a user performs at least one video chat across terminals while watching live video or network video through a display device.

In another example, a user, via a display device, may conduct video chat with at least one other user while entering learning of the educational application. For example, students may be able to achieve remote interaction with teachers while learning content in educational applications. The image can be called that the display device has the function of 'chat while learning'.

In another example, a user, via a display device, may conduct a video chat with a player entering a game while playing a card game. For example, a player may enable remote interaction with other players when entering a gaming application to participate in a game. The display device is visual and can be said to have the function of "watch and play at the same time".

In some embodiments, in the display device, the game scene is fused with the video frame, the portrait in the video frame is scratched, and the portrait is displayed in the game frame, so that the user experience is improved.

In some embodiments, in a somatosensory game (such as playing ball, boxing, running, dancing, etc.), the body gesture and action, limb detection and tracking, detection of key point data of human skeleton, and fusion with a game screen are obtained through a camera, so as to realize the game of scenes such as sports, dancing, etc.

In another example, a user, via a display device, may interact with video and voice with at least one other user while the karaoke application is in progress. The display device is visual and can be said to have the function of 'watching while singing'.

In some embodiments, in the application scenario of "watch while sing", a user may complete recording a song together with other users while chatting the scenario through the display device.

In another example, a user may turn on a camera locally to take pictures and video via a display device. The display device is visual and may be referred to as having a "mirror" function.

In other examples, the display device may further add more functionality or reduce functionality as described above. The function of the display device is not particularly limited in this application.

A schematic diagram of the hardware architecture of the hardware system in the display device 200 according to an exemplary embodiment is illustrated in fig. 2 a. For ease of illustration, the display device 200 in fig. 2a is illustrated as a liquid crystal display.

As shown in fig. 2a, the display device 200 may include: the first panel 11, the first backlight assembly 12, the first rear case 13, the first controller 14, the second controller 15, the first display driving circuit 16, the second panel 21, the second backlight assembly 22, the second rear case 23, the second display driving circuit 24, and the power supply assembly 30. Additionally, in some embodiments, the display device 200 may further include: a base or a suspension bracket. For ease of illustration, the display device 200 is illustrated in fig. 2a as including a base 41, the base 41 being configured to support the display device 200. It should be noted that only one form of base design is shown in the figures, and those skilled in the art can design different forms of base according to the product requirements.

Wherein the first panel 11 is used for presenting a picture of the first display 201 to a 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: 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 (printed circuit board, PCB) on which driving circuits such as a gate driving circuit, a source driving circuit, and the like are provided on the PCB 17. The grid driving circuit is connected with the grid of the thin film transistor TFT through a scanning line, and the source driving circuit is connected with the drain of the thin film transistor TFT through a data line.

The first backlight assembly 12 is disposed below the first panel 11, and is usually some optical assemblies for providing a light source with sufficient brightness and uniform distribution, so that the first panel 11 can display images normally. The first backlight assembly 12 further includes a first back plate (not shown).

Wherein, the first back case 13 is disposed on the first panel 11 to conceal 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 together, thereby providing 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 a first back plate, and some convex hull structures are typically stamped and formed on the first back plate. The first controller 14, the second controller 15, and the first display driving circuit 16 and the power supply assembly 30 are fixed to the convex hull by screws or hooks.

The first controller 14, the second controller 15, the first display driving circuit 16 and the power supply assembly 30 may be jointly disposed on one board, or may be disposed on different boards respectively, for example, the first controller 14 is disposed on a motherboard, the second controller 15 is disposed on an interactive board, the first display driving circuit 16 is disposed on the first display driving board, the power supply assembly 30 is disposed on a power supply board, or may be disposed on different boards in a combined manner, or may be disposed on one board together with the first backlight assembly 12, specifically, may be disposed according to actual requirements, and this application is not limited thereto.

For convenience of explanation, fig. 2a illustrates the first controller 14, the second controller 15, the first display driving circuit 16, and the power supply assembly 30 together on one board.

The main functions of the first display driving circuit 16 are: the backlight driving signal, such as PWM signal and localdiming signal, transmitted by the first controller 14 performs a thousand-level backlight partition control, where the control is based on the image content change, and after a handshake is established between the first controller 14, the VbyOne display signal sent by the first controller 14 is received, and the VbyOne display signal is converted into an LVDS signal, so as to implement image display on the first display screen 201.

Wherein the second panel 21 is used for presenting the user with a picture of the second display 202. In some embodiments, the second panel 21 may be a liquid crystal panel, and the specific structure may be referred to in the foregoing description, which is not repeated herein.

The second backlight assembly 22 is disposed below the second panel 12, and is usually some optical assemblies for providing a light source with sufficient brightness and uniform distribution, so that the second panel 12 can display images normally. The second backlight assembly 22 further includes a second back plate (not shown).

Wherein, the second back case 23 is disposed on the second panel 21 to conceal the parts of the display device 200 such as the second backlight assembly 22 and the second display driving circuit 24 together, thereby providing an aesthetic effect.

The second display driving circuit 24 is disposed on the second back plate, and some convex hull structures are typically stamped and formed on the second back plate. The second display driving circuit 24 is fixed to the convex hull by screws or hooks. The second display driving circuit 24 may be disposed on a board alone, such as a second display driving board, or may be disposed on a board together with the second backlight assembly 22, and may be specifically disposed according to practical requirements, which is not limited in this application. For ease of illustration, the second display driver circuit 24 is shown in fig. 2a as being provided separately on a single board.

In some embodiments, the key pad in fig. 2a 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 reproduction means (not shown in the figure) such as an acoustic component, for example, an I2S interface including a power Amplifier (AMP) and a Speaker (Speaker), etc., for realizing reproduction of sound. Typically, the audio assembly is capable of at least two channels of sound output; when the panoramic surround effect is to be achieved, a plurality of acoustic components need to be provided to output sounds of a plurality of channels, and a detailed description thereof will not be given here.

It should be noted that the display device 200 may also be an OLED display, and accordingly, the template included in the display device 200 is changed accordingly, for example, since the OLED display may realize self-luminescence, a backlight assembly (the first backlight assembly 12 and the second backlight assembly 22 in fig. 2 a) is not required in the OLED display, which is not described herein too much.

Alternatively, a display device having a dual display screen is exemplified as shown in fig. 2a, and a hardware configuration diagram of a hardware system in the display device according to an exemplary embodiment is exemplified in fig. 2 b.

In the display device with a single display screen as shown in fig. 2b, the display device comprises: a panel 1, a backlight assembly 2, a rear case 3, a controller 4, a power supply assembly 5, and a chassis 6. Wherein the panel 1 is used for presenting pictures to a user; the backlight assembly 2 is located below the panel 1, and is usually some optical assemblies, and is used for supplying enough light sources with uniform brightness and distribution, so that the panel 1 can normally display image content, the backlight assembly 2 further comprises a back plate 20, the controller 4 and the power assembly 5 are arranged on the back plate 20, a plurality of convex hull structures are usually punched on the back plate 20, and the controller 4 and the power 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 parts of the display equipment such as the backlight assembly 2, the controller 4, the power supply assembly 5 and the like, thereby achieving an attractive effect; and a base 6 for supporting the display device.

The controller 4 and the power supply assembly 5 may be separately disposed on a board, or may be disposed on a board together with the backlight assembly, specifically, may be disposed according to actual requirements, which is not limited in this application. For ease of illustration, in fig. 2b, the controller 4 and the power supply assembly 5 are co-located on a single board.

Fig. 3 shows a schematic diagram of the connection between the power supply assembly and the load IN fig. 2a, and as shown IN fig. 3, the power supply assembly 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 OUT 3\fourth output terminal OUT4 and a fifth output terminal OUT5 are shown IN the drawing), where the input terminal IN is connected to an AC power source AC (e.g., a mains supply), the output terminal OUT is connected to the load, for example, the first output terminal OUT1 is connected to the sound reproducing device, the second output terminal OUT2 is connected to the first panel 11/the second panel 21, the third output terminal OUT3 is connected to the first backlight assembly 12/the second backlight assembly 22, the fourth output terminal OUT4 is connected to the first controller 14/the second controller 15, and the fifth output terminal OUT5 is connected to the first display driving circuit 16/the second display driving circuit 24. The power supply assembly 30 is required to convert ac mains power into dc power required by the load, and the dc power typically has different specifications, for example, 18V for the audio assembly, 12V/18V for the first controller 14, etc.

The present application may employ a single power control architecture, a dual power control architecture, or a multiple power control architecture. In the following, for convenience of explanation, on the basis of the embodiment shown in fig. 2a, an example of a dual power control structure is taken as an example, with reference to fig. 4.

Fig. 4 shows a specific introduction of a power architecture in the present application. Referring to fig. 2a and 4, the power supply assembly 30 may be mainly composed of a first power supply circuit 31 and a second power supply circuit 32 connected in parallel. The first power supply circuit 31 and the second power supply circuit 32 have substantially the same architecture, and the working principle will be described in detail mainly by taking the first power supply circuit 31 as an example.

The first power supply circuit 31 may include a first rectifying and filtering module, a first PFC module, and a first LLC module, which are connected in sequence.

The first rectifying and filtering module may specifically include: and the rectifier bridge is used for rectifying the input alternating current and inputting a full-wave signal to the power factor correction (Power Factor Correction, PFC) module. An electromagnetic interference (Electromagnetic Interference, EMI) filter may be connected to the AC power source AC before the AC power source AC is input to the first PFC module, to high frequency filter the input AC power source.

The first PFC module generally includes a PFC inductor, a switching power device, and a PFC control chip, and mainly performs power factor correction on an input alternating current power supply (Alternating Current, AC), and outputs a stable direct current bus voltage (e.g., 380V) to a first resonant converter (LLC) module. The first PFC module can effectively improve the power factor of the power supply and ensure the same phase of voltage and current.

The first LLC module can adopt a double-MOS tube LLC resonant conversion circuit and also can comprise pulse frequency adjustment (Pulse frequency modulation, PFM) circuits, capacitors, inductors and other components. The first LLC module can specifically step down or step up the dc bus voltage input by the first PFC module, and output a constant voltage to the load. Here, the load may include a load as shown in fig. 3. Typically, the first LLC module is capable of outputting a variety of different voltages to meet the load requirements. For example, the first LLC module supplies power to the first controller 14, the first LLC module supplies power to the first backlight assembly 12, and so on. For another example, the first controller 14 may also control the first LLC module to supply power (e.g., a power supply voltage having a constant magnitude of 12V or 18V) to the second controller 15, the first display driving circuit 16, the second display driving circuit 24, the keypad, and the second backlight assembly 22, thereby ensuring that each of the panels can operate.

In some embodiments, the first power circuit 31 may further include a first synchronous rectification module (not shown in the figure), which may include a transformer, a controller, two MOS transistors, and a diode, and the module may be directly capable of outputting a stable target voltage, for example, 12V or 18V. It should be noted that the first synchronous rectification module may be provided separately or may be provided in the first LLC module.

The first power supply circuit 31 may further comprise a relay for controlling the supply of power to the second power supply circuit 32.

The second power supply circuit 32 may include a second rectifying and filtering module, a second PFC module, and a second LLC module connected in sequence. Wherein the alternating current of the second power supply circuit 32 is derived from the first power supply circuit 31 or the mains supply, the second LLC module can realize power supply of the first backlight assembly 12, etc. The description of the remaining individual modules refers to the description of the first power supply circuit 31.

In some embodiments, the second power circuit 32 further includes a second synchronous rectification module, wherein the second synchronous rectification module may refer to an implementation form of the first synchronous rectification module.

Note that, arrows in fig. 4 are used to indicate that the power supply unit 30 directly or indirectly supplies power to other components in the display device 200 except the power supply unit. In addition, the first power supply circuit 31 may output a first backlight instruction signal to the first display driving circuit 16 in addition to supplying power. The second power supply circuit 32 may output a second backlight indication signal to the first display driving circuit 16 in addition to supplying power to the implementation.

Wherein the first backlight indication signal is used to indicate that the backlight source of the first area in the first display screen 201 (i.e. the first panel 11) is turned on. The second backlight indication signal is used to indicate that the backlight source of the second area in the first display screen 201 (i.e. the first panel 11) is turned on. The first area and the second area together constitute a part or all of the area displayable on the first display 201.

For convenience of description, one hardware system in the dual hardware system architecture is hereinafter referred to as a first hardware system or a first controller, and the other hardware system is hereinafter referred to 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 the 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 the various interfaces. The first controller and the second controller may be respectively provided with a relatively independent operating system, 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 exemplary: the frame work layer of the operating system of the first controller and the frame work layer of the operating system of the second controller may communicate for command and data transmission such that there are two separate but interrelated subsystems in the display device 200.

The dual hardware system architecture of the present application is further described below with reference to fig. 5. It should be noted that fig. 5 is merely an exemplary illustration of the dual hardware system architecture of the present application, and is not meant to limit the present application. In practical applications, both hardware systems may include more or fewer hardware or interfaces as desired.

A hardware architecture block diagram of the display device 200 according to fig. 2a 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 (i.e., the first controller 14 of fig. 2 a) and a second controller 310 (i.e., the second controller 15 of fig. 2 a), and modules connected to the first controller 210 or the second controller 310 through various interfaces.

In some embodiments, the first controller 210 mainly implements conventional television functions (such as a set-top box, etc.), and may control the first display screen 280 (i.e., the first display screen 201 in fig. 1) to display corresponding image contents. The second controller 310 may be configured to receive the instruction sent by the first controller 210 and control the second display 380 (i.e., the second display 202 in fig. 1) to display the corresponding image content.

The modules connected to the first controller 210 may include a modem 220, a communicator 230, an external device interface 250, 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 of fig. 2 a), an audio output interface 270, and a power module 240. In other embodiments, the first controller 210 may also include more or fewer connected modules.

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

The tuning demodulator 220 is further configured to respond to the frequency of the television channel selected by the user and the television signal carried by the frequency according to the user selection and controlled by the first controller 210.

In other exemplary embodiments, the modem 220 may also be in an external device, such as an external set-top box, or the like. In this way, the set-top box outputs the television audio/video signal after modulation and demodulation, and inputs the television audio/video signal to the display apparatus 200 through the external device interface 250.

Communicator 230 is a component for communicating with external devices or external servers according to various communication protocol types. For example: 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 or near field communication protocol modules (not shown) such as an infrared communication protocol module.

The display device 200 may establish a connection of control signals and data signals with an external control device or a content providing device 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 the second controller 310 or other external apparatuses. The external device interface 250 may be connected to an external device 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., a moving image), an audio signal (e.g., music), additional information (e.g., an EPG), etc., of the external device.

Among other things, the external device interface 250 may include: the High Definition Multimedia Interface (HDMI) terminals are also referred to as HDMI 251, composite Video Blanking Sync (CVBS) terminals are also referred to as AV 252, analog or digital component terminals are also referred to as any one or more of component 253, universal Serial Bus (USB) terminal 254, red Green Blue (RGB) terminals (not shown in the figures), etc. The present application is not limited in the number and type of external device interfaces.

The first controller 210 controls the operation of the display device 200 and responds to the user's operations 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 are connected to the graphics processor 216, the CPU processor 212, and the communication interface 218 via buses.

A ROM 213 for storing instructions for various system starts. When the power of the display device 200 starts to be started when the power-on signal is received, the CPU processor 212 executes a system start instruction in the ROM, and copies the operating system stored in the memory 290 into the RAM 214 to start to run the start-up operating system. When the operating system is started, the CPU processor 212 copies various applications in the memory 290 to the RAM 214, and then starts running the various applications.

A graphics processor 216 for generating various graphical objects, such as: icons, operation menus, user input instruction display graphics, and the like. The device comprises an arithmetic unit, wherein the arithmetic unit is used for receiving various interaction instructions input by a user to carry out operation and displaying various objects according to display attributes. And a renderer that generates various objects based on the operator, and the result of rendering is displayed on the first display screen 280.

CPU processor 212 is operative to execute 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 multiple processors. One of the plurality of processors may include one main processor, and a plurality of or one sub-processor. A main processor for performing some operations of the display apparatus 200 in the pre-power-up mode and/or displaying a picture in the normal mode. A plurality of or a sub-processor for performing an operation in a standby mode or the like.

Communication interface 218 may include first interface 218-1 through 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 screen 280, the first control screen 210 may perform an operation related to the object selected by the user command.

The first controller 210 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 first control screen 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: operations to connect to a hyperlink page, document, image, etc., or operations to execute a program corresponding to an icon are displayed. The user command for selecting the UI object may be an input command through various input means (e.g., mouse, keyboard, touch pad, etc.) connected to the display device 200 or a voice command corresponding to a voice uttered by the user.

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

The base module is a bottom software module for signal communication between the various hardware in the display device 200 and for sending processing and control signals to the upper modules. The detection module is a management module 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 screen 280 to display image content, and can be used for playing information such as multimedia image content and UI interface. The communication module is used for controlling and data communication with external equipment. The browser module is a module for performing data communication between the browsing servers. The service module is used for providing various services and various application programs.

Meanwhile, the memory 290 is also used to store received external data and user data, images of various items in various user interfaces, visual effect maps of focus objects, and the like.

The user input interface 260-3 is used to transmit an input signal of a user to the first controller 210 or transmit a signal output from the first controller 210 to the user. Illustratively, the control device (e.g., a mobile terminal or a remote controller) may send input signals 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 transferred to the first controller 210 by the user input interface 260-3; alternatively, the control device may receive an output signal such as audio, video, or data, which is output from the user input interface 260-3 via the first controller 210, and display the received output signal or output the received output signal in an audio or vibration form.

In some embodiments, a user may input a user command through 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 the user command by inputting a specific sound or gesture, and the user input interface 260-3 recognizes the sound or gesture through the sensor to receive the user input command.

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 an input signal, so as to obtain a video signal that is directly displayed or played on the first display screen 280.

By way of example, the video processor 260-1 includes a demultiplexing module, a video decoding module, an image synthesis module, a frame rate conversion module, a display formatting module, etc. (not shown).

The demultiplexing module is used for demultiplexing the input audio/video data stream, such as the input MPEG-2, and demultiplexes the input audio/video data stream into video signals, audio signals and the like.

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

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

A frame rate conversion module, configured to convert a frame rate of an input video, such as converting a frame rate of an input 24Hz, 25Hz, 30Hz, 60Hz video to a frame rate of 60Hz, 120Hz, or 240Hz, where 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 a display device. And a display formatting module for changing 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 signal output by the frame rate conversion module into a format to output an RGB data signal.

The first display 280 is configured to receive an image signal input from the video processor 260-1, display video content and images, and a menu manipulation interface the first display 280 includes a display assembly for presenting a picture and a driving assembly for driving the display of images. The video content may be displayed from a video in a broadcast signal received by the modem 220 or may be displayed from a video input from a communicator or an external device interface. The first display 280 simultaneously displays a user manipulation interface UI generated in the display device 200 and used to control the display device 200.

And, depending on the type of first display screen 280, a driving assembly for driving the display. Alternatively, if the first display screen 280 is a projection display screen, a projection device and a projection screen may be included.

The audio processor 260-2 is configured to receive the audio signal, decompress and decode according to the standard codec protocol of the input signal, and perform audio data processing such as noise reduction, digital-to-analog conversion, and amplification processing, 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 from the audio processor 260-2 under the control of the first controller 210, where the audio output interface may include a speaker 272 or an external audio output terminal 274 for outputting to a generating device of an external device, such as: external sound terminals or earphone output terminals, etc.

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

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

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

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

The communicator 330 is a component for communicating with external devices or external servers 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 or near field communication protocol modules (not shown) such as an infrared communication protocol module.

The communicator 330 of the second controller 310 and the communicator 230 of the first controller 210 also interact with each other. For example, the WiFi module 231 in the hardware system of the first controller 210 is used to connect to an external network, and generate network communication with an external server, etc. 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 directly connecting to an external network or the like, and the second controller 310 is connected to the external network through the first controller 210. Thus, 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 signals of the external environment or interacting with the outside. The detector 340 may include a light receiver 342, a sensor for capturing ambient light intensity, a display parameter change that may be adapted by capturing ambient light, etc.; the system can also comprise an image collector 341, such as a camera, a video camera and the like, which can be used for collecting external environment scenes, collecting attributes of a user or interacting gestures with the user, adaptively changing display parameters and identifying the gestures of the user so as to realize the interaction function with the user.

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

A video processor 360 for processing the relevant video signals.

The second controller 310 controls the operation of the display device 200 and responds to user operations by running various software control programs stored on the memory 390 (e.g., with an installed third party application, etc.), as well as interactions 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 RAM 314, and the graphics processor 316, CPU processor 312, and communication interface 318 are connected by a bus.

A ROM 313 for storing instructions for various system starts. The CPU processor 312 runs the system boot instructions in ROM and copies the operating system stored in the memory 390 into the RAM 314 to begin running the boot operating system. When the operating system is started, the CPU processor 312 copies various applications in the memory 390 to the RAM 314, and then starts running the various applications.

The CPU processor 312 is configured to execute operating system and application program instructions stored in the memory 390, and to communicate, signal, data, instruction, etc. with the first controller 210, and to execute 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.

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

The second controller 310 may control operations of the display device 200 with respect 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 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 related 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 screen 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 graphical objects, such as: icons, operation menus, user input instruction display graphics, and the like. The device comprises an arithmetic unit, wherein the arithmetic unit is used for receiving various interaction instructions input by a user to carry out operation and displaying various objects according to display attributes. And a renderer for generating various objects based on the operator, and displaying the result of rendering on the second display 380.

The graphics processor 316 of the second controller 310 and the graphics processor 216 of the first controller 210 are each capable of generating various graphics objects. By distinction, if application 1 is installed on the second controller 310, application 2 is installed on the first controller 210, and when a user inputs an instruction at the interface of application 1 and within application 1, the second controller 310 generates a graphical object by the graphics processor 316. When a user is at the interface of application 2 and a user entered instruction is made within application 2, a graphical object is generated by the graphics processor 216 of the first controller 210.

A functional configuration diagram of a display device according to an exemplary embodiment is exemplarily shown 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, application programs, 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 second controller 210. Memory 390 of second controller 310 and memory 290 of first controller 210 may include volatile and/or nonvolatile memory.

For the first controller 210, the memory 290 is specifically configured to store an operation program for driving the first controller 210 in the display device 200, and store various application programs built in the display device 200, various application programs downloaded by a user from an external device, various graphical user interfaces related to the application programs, various objects related to the graphical user interfaces, user data information, and various internal data supporting the application programs. 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, as well as other user data.

The memory 290 is specifically configured to store drivers and related data for the video processor 260-1 and the audio processor 260-2, the first display 280, the communicator 230, the modem 220, the input/output interface, and the like.

In some embodiments, memory 290 may store software and/or programs, the software programs used to represent 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 (such as the middleware, APIs, or application programs), and the kernel may provide interfaces to allow the middleware and APIs, or applications to access the controller to implement control or management of system resources.

By way of example, the memory 290 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 the like. The first controller 210 executes various software programs in the memory 290 such as: broadcast television signal receiving and demodulating functions, television channel selection control functions, volume selection control functions, image control functions, display control functions, audio control functions, external instruction recognition functions, communication control functions, optical signal receiving functions, power control functions, software control platforms supporting various functions, browser functions and other various functions.

Memory 390 includes storage for various software modules for driving and controlling display device 200. Such as: various software modules stored in memory 390, including: a base module, a detection module, a communication module, a display control module, a browser module, various service modules, and the like (not shown in the figure). Since the functions of the memory 390 and the memory 290 are similar, the relevant portions will be referred to as the memory 290, and will not be described herein.

By way of example, 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 executes various software programs in the memory 290 such as: image control function, display control function, audio control function, external instruction recognition function, communication control function, optical signal receiving function, power control function, software control platform supporting various functions, browser function and other various functions.

Differentially, 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, since an image receiving device such as a camera is connected to the second controller 310, the external command recognition module 3907 of the second controller 310 may include a graphic recognition module 2907-1, where a graphic database is stored in the graphic recognition module 3907-1, and when the camera receives an external graphic command, the camera performs a correspondence with the command in the graphic database to perform command 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, where 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 a command from the outside, the voice receiving device and the like perform a corresponding relationship with the 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 key instruction recognition module 2907-3 performs instruction interaction with the control device 100.

Based on the foregoing description, in connection with fig. 1-6, the display device 200 has two display screens (i.e., a first display screen 201 and a second display screen 202). Generally, based on the primary and secondary of the display contents, the display apparatus 200 displays a screen of a conventional television program on the first display screen 201, and displays a screen of auxiliary information such as a notification type message, a voice assistant, a reminder type message, etc. on the second display screen 202, so that the first display screen 201 and the second display screen 202 simultaneously display the screens without disturbing each other.

In order for the display apparatus 200 to have higher picture quality and brightness index, the display apparatus 200 needs to supply a larger power to the backlight assembly. Accordingly, the display device 200 employs a dual power architecture in which the power supply board 4 is constituted by the main power supply board 41 and the sub power supply board 42. In order to equalize the power of the two power boards, the main power board 41 generally supplies power to the backlight sources of one half of the backlight assembly, and the sub power board 42 supplies power to the backlight sources of the other half of the backlight assembly.

It can be understood by those skilled in the art that the display of the lcd device is of a passive light-emitting type, the lcd does not emit light by itself, and it is necessary to realize the light emission of the lcd by means of a backlight source such as a backlight tube, that is, the light emitted by the backlight source is transmitted out through the lcd, and the molecules of the lcd are used to control the light passing through (i.e., adjust the light) under the action of an electric field so as to form image contents. Therefore, a liquid crystal screen has to be matched with a backlight source to form a complete display screen.

Fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present application. As shown in fig. 7, the display device of the present application may include: a first display 701, a second display 702, a first backlight assembly 703, a second backlight assembly 704, a first controller 705, and a second controller 706.

In this application, the display device 700 may be the display device 200 in fig. 1, such as a liquid crystal display, or may be another display device, which is not limited in this application. The display device 700 may include a plurality of display screens, which are not limited in this application. For example, when the display device 700 includes two display screens, a first display screen 701 and a second display screen 702, respectively. Wherein the first display 701, i.e. the first display 201 of fig. 1 mentioned earlier. The second display 702, the second display 202 of fig. 1 mentioned previously.

Wherein the first backlight assembly 703, the aforementioned first backlight assembly 12. The second backlight assembly 704, that is, the aforementioned second backlight assembly 22, and specific implementation forms of the first backlight assembly 703 and the second backlight assembly 704 are not limited in this application. And the first backlight assembly 703 is used to provide a backlight source to the first display screen 701 so that the first display screen 701 can display the first image content. The second backlight assembly 704 is configured to provide backlight light sources to the second display screen 702 such that the second display screen 702 may display second image content.

The first controller 705 may be the first controller 210 mentioned above, or may be another System On Chip (SOC). The second controller 706 may be the aforementioned second controller 310. The specific implementation forms of the first controller 705 and the second controller 706 are not limited in this application.

Based on the above connection, after the display device 700 is powered on, the first controller 705 may receive a power-on command by means of a software code or a hardware circuit, etc., where the power-on command is used to instruct the display device 700 to start and be in the first mode.

The power-on instruction may be a digital signal or an analog signal, and the specific implementation form of the power-on instruction is not limited in this application. The first mode is a play mode of the display device 700, for example, the mode in which the display device 700 plays a television program picture through the first display screen 701 may be set as the first mode, or the mode in which the display device 700 plays a television program picture through the first display screen 701 and the second display screen 702 displays information such as time, weather, air temperature, and reminding information irrelevant to the television program may be set as the first mode, which is not limited in this application.

After the first controller 705 receives the power-on instruction, the first controller 705 may control the first display 701 to display the first image content in the first mode. Meanwhile, the first controller 705 may transmit a power-on instruction to the second controller 706, so that the second controller 706 may control the second display 702 to display the second image content in the first mode. Thus, the display device 700 jointly realizes the function of dual-screen display through the first controller 705 and the second controller 706, and achieves the effect of dual-screen display.

The manner in which the first controller 705 transmits the power-on command to the second controller 706 is not limited in this application. For example, the first controller 705 and the second controller 706 may be disposed under the same network such that the first controller 705 transmits a power-on instruction to the second controller 706 based on the network.

The display device provided by the application, when the display device is electrified, the first controller can receive the startup instruction, and the second controller can also receive the startup instruction through the first controller, so that the first controller can control the first display screen to display the first image content in the first mode, the second controller can control the second display screen to display the second image content in the second mode, the display device can realize the function of double-screen display, the effect of double-screen display is achieved, and the viewing experience of a user is improved.

On the basis of the embodiment shown in fig. 7, as shown in fig. 8, the display device 700 in the present application may further include: a second TCON circuit 707.

The second TCON circuit 707 may be disposed in the aforementioned second display driver circuit 24, and the specific implementation form of the second TCON circuit 707 is not limited herein. After the second TCON circuit 707 is powered, the second TCON circuit 707 may prepare the second display 702 for data to be displayed so that the second display 702 is capable of displaying second image content. Typically, the powered second TCON circuit 707 may handshake with the second controller 706. After handshaking, the second TCON circuit 707 may receive the VbyOne display signal from the second controller 706 and may convert the VbyOne display signal to an LVDS signal.

In view of the data processing performance of the second controller 706, the second controller 706 cannot output image contents to the first display 701 and the second display 702 at the same time. Therefore, based on the above description, after the second controller 706 receives the power-on instruction from the first controller 705, the second controller 706 may switch the first pin1 of the second controller 706 to be connected to the second TCON circuit 707, so that the second TCON circuit 707 can receive a display signal corresponding to the second image content from the second controller 706, and the second display screen 702 displays the second image content in the first mode.

Wherein the number of first pins pin1 is one, thereby saving pin overhead of the second controller 706. The number of the first pins pin1 may be plural, and this is not limited in this application.

In this application, the display device 700 may implement a multiparty interaction function or a photographing function in addition to displaying a conventional television program picture, and the picture corresponding to the multiparty interaction function does not obstruct the conventional television program picture. To achieve this function, therefore, the first controller 705 may control the second display 702 to be turned off after receiving a start instruction of an application program, considering that the amount of data of the multipart interactive screen or the photographing function is relatively large and the processing performance of the second controller 706 is limited. The start instruction may instruct the display device 700 to be in a second mode, where the second mode is a play mode of the display device 700, for example, the second mode may be a mode of a multiparty interactive screen, and the second mode is different from the first mode. After the second display 702 is turned off, the second controller 706 may transmit a display signal corresponding to the first image content to the first controller 705 by switching the first pin1 of the second controller 706 to connect with the first controller 705, so that the first display 701 displays the first image content in the second mode.

The first controller 705 may directly obtain the instruction corresponding to the application program, or may indirectly obtain the instruction corresponding to the application program through the second controller 706, which is not limited in this application.

Optionally, when the first controller 705 indirectly obtains an instruction corresponding to the application program, in this application, after receiving an instruction from a user to start the application program, the first controller 705 may send an instruction to the second controller 706, where the instruction is used to instruct the second controller 706 to start the application program, and the specific form of the instruction is not limited in this application. And, based on the instruction, the second controller 706 may start the application program and send a start instruction to the first controller 705, so that the first controller 705 determines that the first display screen 701 has been switched from the first module to the second mode, so that the first controller 705 controls the second display screen 702 to close the display.

With continued reference to fig. 8, the display device 700 may further include: a second backlight driving circuit 708. The second backlight driving circuit 708 may be disposed in the aforementioned second display driving circuit 24, and the specific implementation form of the second backlight driving circuit 708 is not limited in this application. The second backlight driving circuit 708 may supply power to the second backlight assembly 704 to turn on the backlight light sources, and may control the brightness of the backlight light sources in the second backlight assembly 704.

In this application, since the display power supply of the second display screen 702 is controlled by the first controller 705, after receiving the start command, the first controller 705 may control the second backlight driving circuit 708 to be turned off first, and then stop supplying power to the second TCON circuit 707 to control the second display screen 702 to be turned off.

In this application, after receiving an instruction from the first controller 705 to close the second display screen 702, the second controller 706 switches the connection between the first pin1 of the second controller 706 and the second TCON circuit 707 to the connection between the first pin1 of the second controller 706 and the first controller 705.

In this application, the second controller 706 switches the connection between the first pin1 of the second controller 706 and the second TCON circuit 707 to the connection between the first pin1 of the second controller 706 and the first controller 705 after a preset period of time has elapsed since the start command is sent to the first controller 705.

In this application, after receiving an exit instruction of an application program, the first controller 705 may control the first display screen 701 to display first image content in the first mode. After receiving an instruction for notifying the application to exit from the first controller 705, the second controller 706 may control the image content displayed on the second display screen 702 to be the second image content in the first mode by switching the first pin1 of the second controller 706 to be connected to the second TCON circuit 707. And the first controller 705 may control the second display 702 to display the second image content in the first mode after the first pin1 of the second controller 706 is switched.

In this application, the second backlight driving circuit 708 may drive the second display 702 to present the second image content. After the first pin1 of the second controller 706 is connected to the second TCON circuit 707, the first controller 705 first supplies power to the second TCON circuit 707 and then controls the second backlight driving circuit 708 to control the second display 702 to display the second image content in the first mode.

In this application, the first controller 705 may store the first image content in the first mode. The second controller 706 may store the second image content in the first mode.

In this application, after the first pin1 of the second controller 706 is connected to the second TCON circuit 707, the second controller 706 converts the format of the second image content sent to the second TCON circuit 707 into a format that can be displayed by the second display 702. After the second controller 706 is connected to the first controller 705 through the first pin1 of the second controller 706, the format of the first image content sent to the first controller 705 may be converted into a format that can be displayed on the first display 701.

In a specific embodiment, a specific implementation of the display device 700 of the present application to switch between the first mode and the second mode is illustrated in connection with fig. 9.

As shown in fig. 9, the second controller 706 is provided with a switching module inside the second controller 706, which is connected to the first controller 705 and the second TCON circuit 707 through the first pin1 of the second controller 706, respectively. The specific implementation form of the diverter switch module is not limited in this application.

In the first mode, the second controller 706 controls the first pin1 of the second controller 706 to be connected to the second TCON circuit 707 through the switch module, so that the second display 702 displays the second image content in the first mode. And the first controller 705 may control the first display 701 to display the first image content in the first mode.

In the second mode, the second controller 706 controls the first pin1 of the second controller 706 to be connected with the first controller 705 through the switch module, so that the first display 701 displays the first image content in the first mode. And the first controller 705 causes the second display 702 to turn off the display by powering down the second TCON circuit 707 and the second backlight driver circuit 708.

In addition, in this application, the resolutions of the first display 701 and the second display 702 may be the same or different. If the resolutions of the first display 701 and the second display 702 are different, since the resolution of the image data generally acquired by the second controller 706 is consistent with the resolution of the first display 701. Therefore, when the display device 700 is switched to the first mode, the second controller 706 needs to perform resolution conversion processing, such as clipping, on the image data transferred to the second TCON circuit 707, to obtain second image content consistent with the resolution of the second display 702, so that the second display 702 can normally display the second image content in the first mode.

In summary, the second controller 706 can respectively transmit the image content to the first display 701 and the second display 702, so that the first display 701 and the second display 702 achieve the effect of interactive display of images.

In addition, when the second controller 706 implements the multiparty interaction function or the photographing function, if the user has a voice chat requirement, the second controller 706 transmits the display data and the audio data to the first controller 705, so that the first controller 705 controls the first display 701 to display, and simultaneously performs multi-channel sound processing on the audio data, and transmits the processed data to the speaker in the display device 700. Thus, the display device 700 is enabled to fulfill the need of the user to see and chat at the same time.

It should be noted that, when the display device 700 is in the second mode, in addition to the implementation manner described above, if the second mode is a mode with a smaller transmission data amount, such as voice chat, the application may also use the second display screen 702 to display, and at this time, the second controller 706 controls, through the switch module, the first pin1 of the second controller 706 to be connected to the second TCON circuit 707, so that the second display screen 702 displays the second image content in the second mode, and the first controller 705 may control the first display screen 701 to continuously display the first image content in the first mode.

In addition, when the second controller 706 implements the multiparty interaction function or the photographing function, if the user has a requirement for voice chat, the second controller 706 performs multichannel sound processing on the audio data, and transmits the audio data to the speakers in the display device 700 in a transmission manner such as coaxial or internet access. Thus, the display device 700 is enabled to fulfill the need of the user to see and chat at the same time.

The setting positions and the number of the speakers are not limited.

On the basis of the above-described embodiment, the first controller 705 may acquire the first image content and/or the second image content from at least one of the image capturing apparatus, the local storage apparatus of the display apparatus 700, and the network apparatus.

In this application, the second controller 706 may obtain the first image content and/or the second image content from a local storage device of the image capturing apparatus and/or the display apparatus 700. Note that when the second controller 706 is under the same network as the first controller 705, the second controller 706 may receive image content from the first controller 705.

In this application, the second controller 706 may send handshake signals to the first controller 705. The second controller 706 may obtain the first image content and/or the second image content from the first controller 705 after the first controller 705 receives the handshake signal.

With continued reference to fig. 8, the display device 700 may further include: a first TCON circuit 709 and a first backlight driver circuit 710. In addition, the display device 700 may further include a power supply circuit or the like.

In this application, the first backlight driving circuit 710 may drive the first display screen 701 to present the first image content. The first TCON circuit 709 may control the brightness of backlight sources in the first backlight assembly 703.

Wherein the first TCON circuit 709 is used to prepare the first display 701 for image data to be displayed. The first TCON circuit 709 may perform format and other processing on the received image data to obtain first image content, so that the first display 701 may display the first image content.

The first backlight driving circuit 710 may be disposed in the aforementioned first display driving circuit 16, and the specific implementation form of the first backlight driving circuit 710 is not limited in this application. The first backlight driving circuit 710 may supply power to the first backlight assembly 703 to turn on the backlight light sources, and may control the brightness of the backlight light sources in the first backlight assembly 703 according to the backlight driving signal.

In a specific embodiment, assuming that the first display 701 displays a playback frame of the network video, the data ratio of the first image content of the first display 701 is in a 16:9 resolution format. The second display 702 displays: the second image content of the second display 702 is in a 16:3 resolution format in data ratio, and the second display displays a playing screen of a non-network video such as voice, vocabulary, wake-up, weather, search results, recommended columns, prompts, and the like. The relevant data for the interactive display of the first display 701 and the second display 702 is retrieved by the second controller 706 from a local store within the network or display device 700.

When the display device 700 is normally turned on, the first display screen 701 displays first image content in the first mode, and the second display screen 702 displays second image content in the second mode, so that the viewing experience of a user is improved.

At this time, the first pin1 of the second controller 706 will be pulled high, and the first pin1 of the second controller 706 will be switched to connect with the second TCON circuit 707, so that the second controller 706 can output the data in the 16:3 format in the first mode to the second display 702.

When a user initiates a multi-party interactive function or a camera function, the first controller 705 initiates an application on the second controller 706 by communicating with the second controller 706 in response to the user's intent.

After the application on the second controller 706 is started, the first display 701 is ready for display. And the second controller 706 informs the first controller 705, so that the first controller 705 turns off the backlight of the second display 702 by controlling the second backlight driving circuit 708, and turns off the power supply of the second TCON circuit 707 corresponding to the second display 702.

Since the above operation process can calculate the time period, the second controller 706 can perform the delay operation according to the time period, so that the first pin1 of the second controller 706 is pulled down, and the first pin1 of the second controller 706 is switched to be connected to the first controller 705, so that the second controller 706 can output the data in the format of 16:9 in the second mode to the first display 701.

After the first controller 705 detects the data output of the second controller 705, it will switch to interact with the second controller 706 to complete the image display of the first display 701, i.e. the user starts the multi-party interaction function or the photographing function.

When the user exits the application, the first controller 705 recognizes the user's intention to exit the application and switches the screen of the first display 701 from the second mode to the first image content in the first mode. The first controller 705 then notifies the second controller 706 to exit the application such that the first pin1 of the second controller 706 will pull high and the first pin1 of the second controller 706 will switch to connect with the second TCON circuit 707 so that the second controller 706 can output data in the 16:3 format in the first mode to the second display 702.

After the second controller 706 completes the above operation, the second controller 706 informs the first controller 705 of the result, so that the first controller 705 resumes the display of the second image content in the first mode by powering the second TCON circuit 707 and controlling the second backlight driving circuit 708 to pull up the backlight of the second display 702.

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

Claims

1. A display device, characterized by comprising:

a first display configured to display first image content;

a second display configured to display second image content;

a first backlight assembly configured to provide a backlight light source to the first display screen;

a second backlight assembly configured to provide a backlight light source to the second display screen;

the first controller is configured to control the first display screen to display first image content in a first mode after receiving a starting-up instruction;

a second controller configured to control the second display screen to display second image content in a first mode after receiving the power-on instruction from the first controller;

The starting-up instruction is used for indicating that the display equipment is in a first mode;

a second TCON circuit configured to drive the second display screen to present second image content;

the second controller is specifically configured to control the second display screen to display second image content in a first mode by switching a first pin of the second controller to be connected with the second TCON circuit after receiving the start-up instruction;

and the second controller firstly performs resolution conversion processing on the image data transmitted to the second TCON circuit to obtain second image content with the same resolution as that of the second display screen, so that the second display screen normally displays the second image content in the first mode.

2. The display device of claim 1, wherein the display device comprises a display device,

the first controller is further configured to control the second display screen to be closed after receiving a starting instruction of an application program;

the second controller is further configured to control the first display screen to display first image content in a second mode by switching a first pin of the second controller to be connected with the first controller after the second display screen is closed;

The starting instruction is used for indicating that the display equipment is in a second mode, and the second mode is different from the first mode.

3. The display device of claim 2, wherein the display device is configured to display the plurality of images,

the first controller is specifically configured to send an instruction to the second controller after receiving an instruction of starting the application program from a user, wherein the instruction is used for instructing the second controller to start the application program;

the second controller is configured to start the application program based on the instruction, and send the start instruction to the first controller.

4. The display device according to claim 2, further comprising:

a second backlight driving circuit configured to control brightness of a backlight light source in the second backlight assembly;

and the first controller is specifically configured to control the second backlight driving circuit to be turned off after receiving the starting instruction, and then stop supplying power to the second TCON circuit so as to control the second display screen to be turned off.

5. The display device of claim 2, wherein the display device is configured to display the plurality of images,

the second controller is further configured to switch connection between the first pin of the second controller and the second TCON circuit to connection between the first pin of the second controller and the first controller after receiving an instruction for closing the second display screen from the first controller.

6. A display device according to claim 3, wherein,

the second controller is further configured to switch connection between the first pin of the second controller and the second TCON circuit to connection between the first pin of the second controller and the first controller after a preset period of time has elapsed since the start instruction is sent to the first controller.

7. The display device of claim 1, wherein the display device comprises a display device,

the first controller is further configured to control the first display screen to display first image content in a first mode after receiving an exit instruction of an application program;

the second controller is further configured to control the image content displayed by the second display screen to be second image content in a first mode by switching a first pin of the second controller to be connected with the second TCON circuit after receiving an instruction notifying the application to exit from the first controller;

and the first controller is configured to control the second display screen to display second image content in the first mode after the first pin of the second controller is switched.

8. The display device according to claim 7, further comprising:

the first controller is specifically configured to supply power to the second TCON circuit after the first pin of the second controller is connected to the second TCON circuit, and then control the second backlight driving circuit to control the second display screen to display the second image content in the first mode.

9. The display device of claim 7, wherein the display device is configured to display the plurality of images,

the first controller is further configured to store first image content in a first mode;

the second controller is configured to store second image content in the first mode.

10. The display device of claim 1, wherein the display device comprises a display device,

the second controller is further configured to convert a format of second image content sent to the second TCON circuit into a format displayable by the second display screen after the first pin of the second controller is connected to the second TCON circuit;

the second controller is further configured to convert a format of the first image content sent to the first controller into a format displayable by the first display screen after the first pin of the second controller is connected with the first controller.

11. The display device according to any one of claims 1-10, wherein,

the first controller is further configured to acquire the first image content and/or the second image content from at least one of an image capturing apparatus, a local storage apparatus of the display apparatus, and a network apparatus.

12. The display device according to any one of claims 1-10, wherein,

the second controller is further configured to obtain the first image content and/or the second image content from a local storage device of the image capturing device and/or the display device.

13. The display device according to any one of claims 1-10, wherein,

the second controller is further configured to send a handshake signal to the first controller;

the second controller is further configured to obtain the first image content and/or the second image content from the first controller after the first controller receives the handshake signal.

14. The display device according to any one of claims 1-10, further comprising:

a first TCON circuit configured to drive the first display screen to present first image content;

and a first backlight driving circuit configured to control brightness of a backlight light source in the first backlight assembly.