CN113014970A

CN113014970A - Display apparatus and display control method

Info

Publication number: CN113014970A
Application number: CN201911328412.7A
Authority: CN
Inventors: 侯贵林; 李见
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2021-06-22
Anticipated expiration: 2039-12-20
Also published as: CN113014970B

Abstract

The application provides a display apparatus and a display control method. The display device includes: a display screen configured to present image content; a backlight assembly configured to provide a backlight light source to a display screen; a power supply component configured to provide electrical energy, the power supply component comprising a second power supply circuit; a TCON circuit configured to drive a display screen to present image content; a backlight driving circuit configured to control a luminance of a backlight light source in the backlight assembly; the controller is configured to start an operating system kernel when a starting instruction is received, and indicate to generate a starting LOGO after the operating system kernel is started; and configuring a first level state of the first interface and controlling the second power supply circuit to supply power to the TCON circuit. Therefore, the time delay of displaying the startup LOGO is shortened, and the watching experience of a user is improved.

Description

Display apparatus and display control method

Technical Field

The present application relates to the field of television technologies, and in particular, to a display device and a display control method.

Background

With the development of science and technology and economy, the requirements of people on the living standard are higher and higher. For example, it is desirable for display devices such as televisions to have high picture quality. As will be appreciated by those skilled in the art, in order for a display device to achieve a clear display, the backlight source in the backlight assembly needs to be very bright. Therefore, a dual power architecture is often adopted to supply power to the display device, so that the backlight source reaches the required brightness, and the picture quality of the display device is ensured to meet the requirements of people.

However, in the traditional start-up flow of display device, after the start-up LOGO is generated, the display device just begins to supply power to the TCON circuit in the display device, and the start-up LOGO that leads to having completed needs to wait for the TCON circuit to be supplied power and can transmit for the TCON circuit, causes to show that start-up LOGO is slow to the user, has brought not good viewing experience for the user.

Disclosure of Invention

The application provides a display device and a display control method, which are used for solving the problem that the display of a starting LOGO is slow and the poor viewing experience of a user is caused because the finished starting LOGO in the traditional starting process needs to wait for the power supply of a TCON circuit in the display device.

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

a display screen configured to present image content;

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

a power supply component configured to provide electrical energy, the power supply component comprising a second power supply circuit;

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

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

the controller is configured to start an operating system kernel when a starting instruction is received, and indicate to generate a starting LOGO after the operating system kernel is started; and configuring a first level state of the first interface and controlling the second power supply circuit to supply power to the TCON circuit.

In some embodiments, the display device further comprises: a non-volatile memory and a volatile memory;

the controller is further configured to write a boot program in the nonvolatile memory into the volatile memory when the boot instruction is received, wherein the boot program includes: starting an operating program of the operating system kernel and an operating program for configuring a first level state of the first interface;

the controller is configured to boot the operating system kernel and configure a first level state of the first interface in the volatile memory according to the boot program.

In some embodiments, the start-up procedure comprises: an initialization procedure and a boot procedure, wherein the initialization procedure comprises: initializing an operating program of the operating system kernel and an operating program configuring a first level state of the first interface, the boot program comprising: the operating system kernel is started by the operating program;

the controller is configured to execute initialization of the operating system kernel and configuration of a first level state of the first interface in the volatile memory according to the initialization program, and then execute startup of the operating system kernel according to the boot program.

In some embodiments, the controller is further configured to generate the boot LOGO under an instruction of the operating system kernel after the start-up program finishes running.

In some embodiments, the power supply component further comprises a first power supply circuit;

the controller is further configured to instruct the first power circuit and the second power circuit to respectively send signals for controlling backlight light sources in the backlight assembly to be turned on to the backlight driving circuit based on a first level state of the first interface.

In some embodiments, the first power circuit is electrically connected to the controller through the first interface, and the first power circuit is connected to the second power circuit; alternatively, the first and second electrodes may be,

the second power supply circuit is electrically connected with the controller through the first interface, and the first power supply circuit is respectively electrically connected with the second power supply circuit and the controller.

In some embodiments, the display device further comprises:

a sound reproduction apparatus configured to present sound data;

the controller is further configured to configure a level state of a second interface under an instruction of the operating system kernel when a standby instruction is received, control a power amplifier in the sound reproduction apparatus to mute, reconfigure a second level state of the first interface, and control the second power supply circuit to stop supplying power to the TCON circuit.

In some embodiments, the controller is further configured to, when receiving a screen-off instruction indicating that the display screen is blank and the sound reproduction apparatus plays sound, send a backlight driving signal to the backlight driving circuit to control a backlight light source in the backlight assembly to be turned off, and send black shading data to the TCON circuit to drive the display screen.

In a second aspect, the present application provides a display control method, applied to a display device, where the display device includes: the display device comprises a display screen, a backlight component, a power supply component, a TCON circuit, a backlight driving circuit and a controller; a display screen configured to present image content; a backlight assembly configured to provide a backlight light source to the display screen; a power supply component configured to provide electrical energy, the power supply component comprising a second power supply circuit; a TCON circuit configured to drive the display screen to present image content; a backlight driving circuit configured to control a brightness of a backlight light source in the backlight assembly;

the method comprises the following steps:

the controller starts an operating system kernel and configures a first level state of a first interface when receiving a starting instruction;

the controller generates the boot LOGO under the instruction of the operating system kernel, and controls the second power supply circuit to supply power to the TCON circuit based on the first level state of the first interface;

the controller is in after the start LOGO is accomplished, to the TCON circuit sends the start LOGO, so that the display screen is in when the backlight drive circuit controls backlight source in the backlight assembly to open, the start LOGO is displayed.

when the controller receives a starting instruction, starting an operating system kernel and configuring a first level state of a first interface, wherein the starting instruction comprises the following steps:

when the controller receives the starting instruction, writing a starting program in the nonvolatile memory into the volatile memory, wherein the starting program comprises: starting an operating program of the operating system kernel and an operating program for configuring a first level state of the first interface;

the controller starts the operating system kernel and configures a first level state of the first interface in the volatile memory according to the start-up program.

the controller starts the operating system kernel and configures a first level state of the first interface in the volatile memory according to the start program, including:

and the controller executes the initialization of the operating system kernel and the configuration of the first level state of the first interface in the volatile memory according to the initialization program and then executes the startup of the operating system kernel according to the bootstrap program.

In some embodiments, the method further comprises:

and after the running of the starting program is finished, the controller generates the starting LOGO under the instruction of the operating system kernel.

the method further comprises the following steps:

the controller instructs the first power supply circuit and the second power supply circuit to respectively send signals for controlling the backlight light source in the backlight assembly to be turned on to the backlight driving circuit based on the first level state of the first interface.

In some embodiments, the display device further comprises: a sound reproduction apparatus configured to present sound data;

the method further comprises the following steps:

and when receiving a standby instruction, the controller configures the level state of the second interface under the instruction of the operating system kernel, controls the power amplifier in the sound reproduction device to mute, reconfigures the second level state of the first interface, and controls the second power supply circuit to stop supplying power to the TCON circuit.

In some embodiments, the method further comprises:

and when the controller receives a screen turn-off instruction which is used for indicating the display screen to be black and the sound reproducing device plays sound, the controller sends a backlight driving signal to the backlight driving circuit so as to control a backlight light source in the backlight assembly to be turned off and sends black blocking data to the TCON circuit so as to drive the display screen to be black.

According to the display device and the display control method, when the controller receives a starting-up instruction, not only is the kernel of an operating system started, but also the first level state of the first interface is configured, wherein the first level state of the first interface is used for indicating the second power supply circuit to supply power to the TCON circuit. Therefore, the controller can enter the kernel of the operating system, and can generate the startup LOGO under the indication of the kernel of the operating system, and control the second power supply circuit to supply power to the TCON circuit based on the first level state of the first interface, so that the generation process of the startup LOGO and the power supply process of the TCON circuit can be carried out simultaneously. Therefore, after the startup LOGO is completed, the controller sends the startup LOGO to the TCON circuit, so that the TCON circuit can process formats and the like of the startup LOGO, and the display screen can display the startup LOGO when the backlight light source in the backlight assembly is controlled to be turned on by the backlight driving circuit.

In this application, through when starting the operating system kernel, for realizing that the second power supply circuit supplies power to TCON circuit configuration first interface's first level state, make the controller at the in-process that generates the start LOGO, can also control the second power supply circuit and supply power to TCON circuit, thereby, avoided the phenomenon that the start LOGO that has accomplished need wait for the power supply of TCON circuit, make the TCON circuit can prepare data fast for the display screen, so that the display screen in time shows the start LOGO to the user, the time delay of showing the start LOGO has been shortened, user's viewing experience has been promoted, display device's competitiveness has been improved.

Drawings

In order to more clearly illustrate the technical solutions in the present application or the related art, the drawings needed to be used in the description of the embodiments or the related art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without inventive labor.

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

FIG. 2a is a diagram illustrating a hardware structure of a hardware system in the display device of FIG. 1;

FIG. 2b is a diagram illustrating a hardware structure of a hardware system in a display device;

FIG. 3 is a schematic diagram of the connection of the power supply assembly to the load of 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 a 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 flowchart of a display control method according to an embodiment of the present application;

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

Detailed Description

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

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

The display device provided by the embodiments of the present application may have a display device of a single system and a single display structure. For example, the display device includes: a display screen configured to display a screen image; a sound reproducing device configured to play sound; and a power supply circuit configured to supply power to a load of the display device, the load including the display screen, the sound reproducing apparatus, and the like.

Alternatively, the present application is mainly directed to a sound-picture synchronization process of a display device having a dual-system and dual-display structure, that is, a display device having a first controller (a first hardware system), a second controller (a second hardware system), a first display screen, and a second display screen, and the structure, function, implementation, and the like of the display device having the dual-system hardware structure will be described in detail below.

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

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

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

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

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

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

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

The term "user interface" as used in the embodiments of the present application is a media interface for interaction and information exchange between an application or operating system and a user, which enables conversion between an internal form of information and a user-acceptable form. A commonly used presentation form of the user interface is a Graphical User Interface (GUI), which refers to a user interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in the 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 the embodiments of the present application refers to a user behavior used to express an intended idea, action, purpose, or result through a change in hand shape or an action such as hand movement.

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

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

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

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

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

As shown in fig. 1, the display apparatus 200 may also perform data communication with the server 300 through various communication means. In various embodiments of the present application, the display device 200 may be allowed to be in 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 apparatus 200.

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

The display device 200 includes: the display device comprises a first display screen 201 and a second display screen 202, wherein the first display screen 201 and the second display screen 202 are independent from each other, and a double-hardware control system is adopted between the first display screen 201 and the second display screen 202.

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

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

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

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

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

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

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

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

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

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

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

As an embodiment, the camera adopted in the present application may have 1700 ten thousand pixels, so as to achieve the purpose of ultra high definition display. In actual 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 various different modes, so that the function which cannot be realized by the traditional display device is achieved.

Illustratively, a user can conduct a video chat with at least one other user while watching a video program via a display device. In the display device, the presentation of the video program can be used as a background picture, and a window for video chat is displayed on the background picture. The vivid display device can be called as a display device with the function of 'watching while chatting'.

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

In another example, a user can engage in a video chat with at least one other user via a display device while entering an educational application for learning. For example, a student may interact remotely with a teacher while learning content in an educational application. The image can be called that the display device has the function of chatting while learning.

In another example, a user may play a card game while conducting a video chat with a player entering the game via a display device. For example, a player may enable remote interaction with other players when entering a gaming application to participate in a game. Figurative, the display device can be said to have a "see while play" function.

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

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

In another example, a user may interact with at least one other user via a display device in video and voice while the karaoke application. Vividly, the display device can be called as having the function of 'seeing and singing while watching'.

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

In another example, a user may turn on a camera locally for pictures and videos via a display device. Figuratively, the display device may be said to have a "mirror" function.

In other examples, the display device may add more or reduce the above functions. The function of the display device is not particularly limited in the present application.

Fig. 2a schematically illustrates a hardware structure of a hardware system in the display device 200 according to an exemplary embodiment. For convenience 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: a first panel 11, a first backlight assembly 12, a first rear case 13, a first controller 14, a second controller 15, a first display driving circuit 16, a second panel 21, a second backlight assembly 22, a second rear case 23, a second display driving circuit 24, and a power supply assembly 30. Additionally, in some embodiments, the display device 200 may further include: a base or a suspension bracket. For convenience of illustration, the display device 200 in fig. 2a is illustrated by including a base 41, and the base 41 is used for supporting the display device 200. It should be noted that the drawings only show one type of base design, and those skilled in the art can design different types of bases according to the product requirements.

The first panel 11 is used for presenting the picture of the first display screen 201 to the user. In some embodiments, the first panel 11 may be a liquid crystal panel. For example, the liquid crystal panel may include, in order from top to bottom: a horizontal polarizing plate, a color filter, a liquid crystal layer, a thin film transistor TFT, a vertical polarizing plate, a light guide plate, and a Printed Circuit Board (PCB), and a driving circuit such as a gate driving circuit and a source driving circuit is disposed on the PCB 17. The grid electrode driving circuit is connected with the grid electrode of the thin film transistor TFT through a scanning line, and the source electrode driving circuit is connected with the drain electrode of the thin film transistor TFT through a data line.

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

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

Wherein the first controller 14, the second controller 15, the first display driving circuit 16 and the power supply assembly 30 are disposed on the first back plate, and some convex hull structures are typically formed by stamping on the first back plate. The first controller 14, the second controller 15, the first display driving circuit 16, and the power supply module 30 are fixed to the convex hull by screws or hooks. The first controller 14, the second controller 15, the first display driving circuit 16 and the power supply module 30 may be disposed on a single board, or may be disposed on different boards, for example, the first controller 14 is disposed on a main board, the second controller 15 is disposed on an interactive board, the first display driving circuit 16 is disposed on the first display driving board, and the power supply module 30 is disposed on the power supply board, or may be disposed on different boards in combination, or may be disposed on a single board together with the first backlight module 12, and the configuration may be specifically set according to actual requirements, which is not limited in this application. For convenience of illustration, fig. 2a illustrates the first controller 14, the second controller 15, the first display driver circuit 16, and the power supply module 30 on a single board.

The first display driving circuit 16 mainly functions to: the multi-level backlight partition control is performed through the backlight driving signals transmitted by the first controller 14, such as the PWM signal and the localdiming signal, and the control is changed according to the image content, and after the handshake is established between the first controller 14 and the control, the VbyOne display signal transmitted by the first controller 14 is received, and the VbyOne display signal is converted into the LVDS signal, so that the image content display of the first display screen 201 is realized.

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

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

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

The second display driving circuit 24 is disposed on the second back plate, and some convex hull structures are usually formed on the second back plate by stamping. The second display driving circuit 24 is fixed to the convex bag by a screw or a hook. The second display driving circuit 24 may be separately disposed on a board, such as the second display driving board, or may be disposed on a board together with the second backlight assembly 22, and the second display driving circuit may be disposed specifically according to actual requirements, which is not limited in this application. For convenience of explanation, fig. 2a illustrates the second display driving circuit 24 separately provided on one board.

In some embodiments, fig. 2a further includes a key sheet, where the key sheet may be disposed on the first back plate or the second back plate, which is not limited in this application. And a plurality of keys and key circuits are arranged on the key board, so that the first controller 14 or the second controller 15 can receive key signals from the key board, and the first controller 14 or the second controller 15 can send control signals to the key board.

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

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

Alternatively, a display device with dual display screens is taken as an exemplary illustration as shown in fig. 2a, and a hardware configuration diagram of a hardware system in the display device according to an exemplary embodiment is exemplarily shown in fig. 2 b.

Among them, in the display device having a single display screen as shown in fig. 2b, the display device includes: 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 for users; the backlight assembly 2 is located below the panel 1, and is generally optical assemblies for providing sufficient brightness and uniformly distributed light sources to enable the panel 1 to normally display image contents, the backlight assembly 2 further includes a back plate 20, the controller 4 and the power supply assembly 5 are disposed on the back plate 20, and are generally stamped on the back plate 20 to form convex hull structures, and the controller 4 and the power supply assembly 5 are fixed on the convex hulls through screws or hooks; the rear shell 3 is covered on the panel 1 to jointly hide the parts of the display equipment such as the backlight component 2, the controller 4, the power supply component 5 and the like, thereby achieving the effect of attractive appearance; and a base 6 for supporting the display device.

The controller 4 and the power supply module 5 may be disposed on a single board, or may be disposed on a single board together with the backlight module, and may be specifically 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 provided together on one board.

Fig. 3 shows a schematic diagram of the connection relationship between the power module and the load IN fig. 2a, and as shown IN fig. 3, the power module 30 includes an input terminal IN connected to an AC power source AC (such as commercial power) and an output terminal OUT (a first output terminal OUT1, a second output terminal OUT2, a third output terminal OUT3, a fourth output terminal OUT4 and a fifth output terminal OUT5 are shown), wherein the output terminal OUT is connected to the load, for example, a first output terminal OUT1 is connected to the sound reproducing apparatus, a second output terminal OUT2 is connected to the first panel 11/the second panel 21, a third output terminal OUT3 is connected to the first backlight module 12/the second backlight module 22, a fourth output terminal OUT4 is connected to the first controller 14/the second controller 15, and a fifth output terminal 5 is connected to the first display driving circuit 16/the second display driving circuit 24. The power supply 30 needs to convert the ac power into dc power required by the load, and the dc power is usually of different specifications, for example, 18V is required for the audio components, 12V/18V is required for the first controller 14, etc.

The power supply control device can adopt a single power supply control structure, a double power supply control structure or a multi-power supply control structure. For convenience of explanation, a dual power control structure is taken as an example to be exemplified on the basis of the embodiment shown in fig. 2a and fig. 4.

Fig. 4 shows a detailed description of one 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 circuit 31 and the second power circuit 32 have substantially the same structure, and the operation principle will be described in detail below mainly by taking the first power circuit 31 as an example.

The first power 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: the rectifier bridge is used for rectifying input alternating current and inputting full-wave signals to a Power Factor Correction (PFC) module. Before the AC power is input into the first PFC module, an Electromagnetic Interference (EMI) filter may be connected to perform high frequency filtering on the input AC power.

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 (AC) power source to output a stable dc bus voltage (e.g., 380V) to the first resonant converter (LLC) module. The first PFC module can effectively improve the power factor of a power supply and ensure the same phase of voltage and current.

The first LLC module may adopt a double-MOS transistor LLC resonant conversion circuit, and may further include a Pulse Frequency Modulation (PFM) circuit, a capacitor, an inductor, and other components. The first LLC module may 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 demands of the load. 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 supply voltage with a 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, so as to ensure that each panel can operate.

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

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

The second power circuit 32 may include a second rectifying and filtering module, a second PFC module, and a second LLC module, which are connected in sequence. The alternating current of the second power circuit 32 is derived from the first power circuit 31 or the commercial power, and the second LLC module can realize the power supply of the first backlight assembly 12. The rest of the respective blocks will be described with reference to the description of the first power supply circuit 31. In some embodiments, the second power circuit 32 further comprises a second synchronous rectification module, wherein the second synchronous rectification module may refer to an implementation form of the first synchronous rectification module.

It should be noted that the arrows in fig. 4 are used to indicate that the power supply assembly 30 directly or indirectly supplies power to other components in the display device 200 except for the power supply assembly. 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 realizing power supply. 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 for indicating to turn on the backlight light source of the first area in the first display screen 201 (i.e. the first panel 11). The second backlight indication signal is used to indicate that the backlight light sources of the second area in the first display screen 201 (i.e. the first panel 11) are turned on. The first area and the second area together constitute a part or all of the area displayable by the first display screen 201.

For ease of description, one hardware system in a dual hardware system architecture will be referred to hereinafter as a first hardware system or a first controller, and the other hardware system will be referred to hereinafter as a second hardware system or a second controller. The first controller comprises various processors and various interfaces of the first controller, and various modules connected with the first controller through 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 each have a relatively independent operating system installed therein, and the operating system of the first controller and the operating system of the second controller may communicate with each other through a communication protocol, which is as follows: the frame layer of the operating system of the first controller and the frame layer of the operating system of the second controller can communicate for the transmission of commands and data, so that there are two independent but interrelated subsystems in the display device 200.

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

A block diagram of the hardware architecture of the display device 200 according to fig. 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 in fig. 2 a) and a second controller 310 (i.e., the second controller 15 in 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 a conventional television function (such as an external 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 content. The second controller 310 may be configured to receive the instruction sent by the first controller 210 and control the second display screen 380 (i.e., the second display screen 202 in fig. 1) to display corresponding image content.

The modules connected to the first controller 210 may include a tuning demodulator 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 in fig. 2 a), an audio output interface 270, and a power supply module 240. In other embodiments, the first controller 210 may include more or fewer modules connected.

The tuning demodulator 220 is configured to perform modulation and demodulation processing such as amplification, mixing, resonance and the like on a broadcast television signal received in a wired or wireless manner, so as to demodulate an audio/video signal 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 broadcast system of the television signal, the signal path of the tuner 220 may be various, such as: terrestrial broadcasting, cable broadcasting, satellite broadcasting, internet broadcasting, or the like; according to different modulation types, the adjustment mode of the signal can be a digital modulation mode or an analog modulation mode; and depending on the type of television signal being received, tuner demodulator 220 may demodulate analog and/or digital signals.

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

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

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

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

The external device interface 250 is a component for providing data transmission between the first controller 210 and the second controller 310 or other external devices. The external device interface 250 may be connected with an external apparatus such as a set-top box, a game device, a notebook computer, etc. in a wired/wireless manner, and may receive data such as a video signal (e.g., moving image), an audio signal (e.g., music), additional information (e.g., EPG), etc. of the external apparatus.

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

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

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

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

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

A CPU processor 212 for executing operating system and application program instructions stored in memory 290. And executing various application programs, data and contents according to various interactive instructions received from the outside so as to finally display and play various audio and video contents.

In some exemplary embodiments, the CPU processor 212 may include a plurality of processors. The plurality of processors may include a main processor and a plurality of or a sub-processor. A main processor for performing some operations of the display apparatus 200 in a pre-power-up mode and/or operations of displaying a screen in a normal mode. A plurality of or one sub-processor for performing an operation in a standby mode or the like.

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

The first controller 210 may control operations of the display device 200 in relation to the first display screen 280. For example: in response to receiving a user command for selecting a UI object displayed on the first display 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 apparatus 200 in relation to the second display screen 380. For example: in response to receiving a user command for selecting a UI object to be 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: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to an icon. The user command for selecting the UI object may be a command input through various input means (e.g., a mouse, a keyboard, a touch pad, etc.) connected to the display apparatus 200 or a voice command corresponding to a voice spoken by the user.

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

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

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

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

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

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

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

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

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

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

The frame rate conversion module is configured to convert a frame rate of an input video, such as a frame rate of an input 24Hz, 25Hz, 30Hz, or 60Hz video into 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 converting the signal output by the frame rate conversion module into a signal conforming to a display format of a display device, such as converting the format of the signal output by the frame rate conversion module to output RGB data signals.

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

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

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

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

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

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

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

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

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

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

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

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

A video processor 360 for processing the associated video signal.

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

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

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

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

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

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

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

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

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

Fig. 6 is a diagram schematically illustrating a functional configuration of a display device according to an exemplary embodiment.

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

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

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

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

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

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

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

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

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

Based on the foregoing description, referring to fig. 1-6, when the display device 200 applies a larger overall power, the power supply assembly 30 is usually powered by a dual power supply architecture, for example, the dual power supply architecture may include the first power supply circuit 31 and the second power supply circuit 32 connected in parallel in fig. 4, so as to meet the power supply requirement and the picture quality of the display device 200. For example, the overall power required for the display device 200 is 700W, and the power supply assembly 30 outputs 350W using two single boards placed in parallel.

The display device 200 may present not only the screen of the first display 201, but also the screen of the second display 202, and may also present the screens on the first display 201 and the second display 202 at the same time. The mentioned pictures may include, but are not limited to, a power-on picture, a video playing picture, an interactive picture, a power-off picture, and the like.

For convenience of description, a conventional starting process of the display device 200 is described based on a dual power architecture by taking an example of displaying a boot LOGO on the first display screen 201.

In the dual power supply architecture, the first power supply circuit 31 and the second power supply circuit 32 need to supply power to the first controller 14, the second controller 15, the first display driving circuit 16, and the like, so as to ensure that the power supply sequence operates normally, and also need to provide a backlight voltage to a backlight light source in a backlight assembly (such as the first backlight assembly 12 shown in fig. 2 a) so as to turn on the backlight light source, so that the display device 200 displays a high-quality picture.

The backlight source may include, but is not limited to, a backlight Lamp strip such as a Light Emitting Diode (LED) or a Cold Cathode Fluorescent Lamp (CCFL).

The first display driving circuit 16 is divided into a plurality of blocks based on the function of the first display driving circuit 16. In some embodiments, the first display driving circuit 16 may include: a first backlight driving circuit 161 and a first TCON circuit 162. The first backlight driving circuit 161 is used to control whether the backlight source in the first backlight assembly 12 is turned on and adjust the brightness of the backlight source. The first TCON circuit 162 is used to prepare the image content for the first display screen 201 for display.

In order to ensure the picture quality of the display apparatus 200, the display apparatus 200 employs a thousand-level backlight partition control based on the picture content. In some embodiments, the present application divides the display area of the first display screen 201 into a first area and a second area. And the present application does not limit the division of the display area.

For example, the first area is located at the upper half portion of the displayable area of the first display screen 201, and the second area is located at the lower half portion of the displayable area of the first display screen 201. Alternatively, the first area is located in the left half of the displayable area of the first display screen 201, and the second area is located in the right half of the displayable area of the first display screen 201.

The first power circuit 31 may not only supply the first backlight driving circuit 161 with the power of the backlight light source in the first backlight assembly 12, but also transmit a first backlight indicating signal to the first backlight driving circuit 161, while supplying the first backlight driving circuit 161 with the power, the first backlight indicating signal being used to instruct the first backlight driving circuit 161 to turn on the backlight light source of the first region.

Also, the first controller 14 may transmit a backlight driving signal to the first backlight driving circuit 161, so that the first backlight driving circuit 161 may control backlight effects such as overall brightness and local brightness of the backlight light source in the first backlight assembly 12 based on the backlight driving signal.

For example, the backlight driving signal may include a PWM signal for controlling the overall brightness of the backlight light sources in the first backlight assembly 12 and a luminance signal for controlling the local brightness of the backlight light sources in the first backlight assembly 12 based on the image content displayed by the display screen. The PWM signal may be sent indirectly from the first controller 14 to the first backlight driving circuit 161 through the first power supply circuit 31, or may be sent directly from the first controller 14 to the first backlight driving circuit 161. To ensure that the Localdim signal is not disturbed by other signals, the Localdim signal is typically sent directly by the first controller 14 to the first backlight driving circuit 161.

The second power circuit 32 may transmit a second backlight indication signal to the first backlight driving circuit 161 while supplying power to the first TCON circuit 162, where the second backlight indication signal is used to instruct the first backlight driving circuit 161 to turn on the backlight source of the second area, and the first area and the second area together form a part or all of the displayable area of the first display 201. The powered first TCON circuit 162 may handshake with the first controller 14. After the handshake, the first TCON circuit 162 may receive the VbyOne display signal from the first controller 14, and may convert the VbyOne display signal into an LVDS signal, enabling display of image content of the first display screen 201. In addition, the second power supply circuit 32 may also supply the first backlight driving circuit 161 with power of the backlight light source in the first backlight assembly 12.

Based on the above description, when the display device 200 is powered on, the first controller 14 may automatically mirror the boot program in the nonvolatile memory to the volatile memory, and run the boot program in the volatile memory, so as to implement the booting of the kernel (abbreviated as kenel) of the operating system.

The non-volatile memory may include various types, such as an embedded multimedia card (eMMC) or a Universal Flash Storage (UFS) memory. The volatile memory may specifically include various types of random-access memory (RAM), such as double-speed synchronous dynamic random access memory (DDR SDRAM).

Wherein, the starting program comprises: all operating programs involved in starting the operating system of the first controller 14 and the parameters required for the running of the operating programs. For example, the start-up procedure may include: xboot and Uboot. Xboot, BootLoader, is a small program that is run before the kernel of the operating system runs. By operating the Xboot, the first controller 14 may initialize hardware in the display device 200, establish a mapping map of a memory space, and the like, so that the software and hardware environment of the display device 200 reaches an initialization state, and a correct environment is prepared for the kernel of the operating system. Uboot is used for operating system kernel boot. By operating the Uboot, the first controller 14 may detect an external plug-in device such as a usb disk, read a loaded code from the external plug-in device, configure a driver of the external plug-in device based on the loaded code, and start an operating system kernel to perform basic work for normally operating hardware or software applications. In addition, by operating the Uboot, the first controller 14 may also implement a process such as upgrading.

The kernel of the operating system is a core part of the operating system, and is mainly used for managing processes, memories, device drivers, files and a network system of the operating system, and determining the performance and stability of the operating system. The operating system may include, but is not limited to, Linux, Android, and other autonomic development systems.

After the start program is executed, the first controller 14 enters the kernel of the operating system, and under the instruction of the kernel of the operating system, the first controller 14 may configure the states of various interfaces or various applications. Such as configuration of underlying drivers, middleware or upper applications.

On one hand, since the operation of generating the boot LOGO (i.e., bootlogo operation) exists in the kernel of the operating system, the first controller 14 may start to draw the boot LOGO based on the bootlogo operation and generate the boot LOGO after the boot program is completely run.

On the other hand, as can be understood by those skilled in the art, the moment of turning on the backlight light source is later than the moment of displaying the picture, so that the viewing experience of the user can be improved. Since the first power circuit 31 needs to send the first backlight indication signal to the first backlight driving circuit 161 under the control of the switch interface (SW interface for short) of the first controller 14, and the second power circuit 32 also needs to send the second backlight indication signal to the first backlight driving circuit 161 under the control of the switch interface (SW interface for short) of the first controller 14. Therefore, the first backlight indication signal and the second backlight indication signal of the first backlight driving circuit 161 are controlled by a switch interface (abbreviated as SW interface) of the first controller. The power supply of the second power circuit 32 is also controlled by the SW interface of the first controller 14, and the second power circuit 32 can supply power to the first TCON circuit 162 when there is a power supply input. Therefore, the first controller 14 will normally configure the level state of the SW interface, such as the pull-up state or the pull-down state, after the power-on LOGO is completed.

At this time, the second power supply circuit 32 has just supplied power to the first TCON circuit 162, so that the first TCON circuit 162 is turned off. The activated first TCON circuit 162 may receive the VbyOne display signal (i.e., the boot LOGO) transmitted by the first controller 14 by handshaking with the first controller 14, and convert the VbyOne display signal into an LVDS signal.

In addition, based on the level state of the SW interface, not only the first power supply circuit 31 may transmit a first backlight indication signal to the first backlight driving circuit 161 to instruct the first backlight driving circuit 161 to turn on the backlight light source of the first area, but also the second power supply circuit 32 may transmit a second backlight indication signal to the first backlight driving circuit 161 to instruct the first backlight driving circuit 161 to turn on the backlight light source of the second area.

In some embodiments, the first backlight driving circuit 161 may also receive a backlight driving signal transmitted by the first controller 14 to instruct the first backlight driving circuit 161 to adjust the brightness of the backlight of the display area. Accordingly, the first backlight driving circuit 161 delays a time period, such as 300ms, after receiving the first backlight indication signal, the second backlight indication signal and the backlight driving signal, so as to ensure that the backlight light sources of the first area and the second area can be turned on simultaneously. After the backlight sources of the first area and the second area are turned on simultaneously and the first TCON circuit 162 is ready for data, the first display screen 201 can display the startup LOGO.

Based on the above description, the completed start-up LOGO can be transmitted to the first TCON circuit 162 only after waiting for the first TCON circuit 162 to supply power and can be displayed on the first display screen 201 after the first backlight driving circuit 161 controls the first backlight assembly 12 to turn on the backlight light source, which causes slow display of the start-up LOGO and seriously affects the viewing experience of the user.

In order to solve the problems, the application provides a display device and a display control method, based on a dual-power architecture, after the display device is started, a controller starts an operating system kernel, and simultaneously configures a level state of an interface for controlling a second power supply circuit to supply power to a TCON circuit, so that in the process of generating the starting LOGO under the instruction of the controller operating system kernel, the second power supply circuit can be controlled to supply power to the TCON circuit, thereby avoiding the phenomenon that the finished starting LOGO needs to wait for the power supply of the TCON circuit, enabling the TCON circuit to quickly prepare data for a display screen, facilitating the display screen to display the starting LOGO to a user in time, shortening the time delay of displaying the starting LOGO, and improving the viewing experience of the user.

Hereinafter, a specific structure of the display device and a specific implementation process of the display control method will be described in detail through specific embodiments.

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 700 of the present application may include: a display 701, a backlight assembly 702, a power supply assembly 703, a TCON circuit 704, a backlight driver circuit 705, and a controller 706. For convenience of explanation, in fig. 7, power supply lines are drawn in thick lines, and signal connections are drawn in thin lines.

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 other forms of display devices, which is not limited in this application. The display device 700 may include one display screen or a plurality of display screens, which is not limited in this application. For example, when there are two display screens in the display device 700, the two display screens may be the first display screen 201 and the second display screen 202 in fig. 1.

The display screen 701 may be any display screen used for displaying image content in the display device 700, and the implementation form of the display screen 701 is not limited in this application. For example, the display 701 may be the first display 280 in fig. 5, and may be disposed on the aforementioned first display 201. The display 701 may also be the second display 380 of fig. 5, and may be disposed on the second display 202 mentioned above.

The backlight assembly 702 is the aforementioned first backlight assembly 12 or the second backlight assembly 22, and the present application is not limited to the specific implementation form of the backlight assembly 702. And the backlight assembly 702 is used to provide a backlight light source to the display 701 so that the display 701 can display image content.

The power supply component 703 is used to supply power to the display device 700, and the power supply component 703 may include a first power circuit 7031 and a second power circuit 7032. The first power circuit 7031 and the second power circuit 7032 may be disposed on one board or may be disposed on different boards, which is not limited in this application.

The first power circuit 7031 has a function similar to that of the first power circuit 31 mentioned above, and the first power circuit 7031 may be disposed on the power module 30 shown in fig. 2a, and is configured to supply power to the controller 706, the second power circuit 7032, the backlight driving circuit 705 and the backlight module 702, and transmit a first backlight indication signal (illustrated by signal 1 in fig. 7) to the backlight driving circuit 705.

The first power circuit 7031 supplies power to the backlight module 702 by supplying power required by the backlight module 702 to the backlight driving circuit 705 through the first power circuit 7031 (not shown in fig. 7). And the present application does not limit the specific implementation form of the first power circuit 7031. In addition, the first power supply circuit 7031 can also supply power to a sound reproducing device (not illustrated in fig. 7) such as an audio component in the display apparatus 700.

The second power circuit 7032 has a function similar to that of the second power circuit 32 mentioned above, and the second power circuit 7032 may be disposed on the power module 30 shown in fig. 2a, and is used for supplying power to the TCON circuit 704 and the backlight module 702 and transmitting a second backlight indication signal (illustrated by signal 2 in fig. 7) to the backlight driving circuit 705.

The second power circuit 7032 supplies power to the backlight module 702 by supplying power required by the backlight module 702 to the backlight driving circuit 705 through the second power circuit 7032 (not shown in fig. 7). And the specific implementation form of the second power circuit 7032 is not limited in this application. In addition, the second power supply circuit 7032 may also supply power to a sound reproducing device (not illustrated in fig. 7) such as an audio component in the display apparatus 700.

The controller 706 may be the aforementioned first controller 210, or may be another System On Chip (SOC), and the specific implementation form of the controller 706 is not limited in this application. The controller 706 may transmit a backlight driving signal (illustrated by signal 3 in fig. 7) to the backlight driving circuit 705, and the specific function of the backlight driving signal may be as described above, which is not described herein again.

The TCON circuit 704 may be the first TCON circuit 162 of the first display driving circuit 16. The TCON circuit 704 is used to prepare the display panel 701 with data to be displayed, so that the display panel 701 can display corresponding image content in cooperation with the backlight driving circuit 705 and the TCON circuit 704.

The backlight driving circuit 705 may be the aforementioned first backlight driving circuit 161 in the first display driving circuit 16, and the present application does not limit the specific implementation form of the backlight driving circuit 705. The backlight driving circuit 705 may provide power to the backlight assembly 702 to turn on the backlight light source according to the first backlight indication signal and the second backlight indication signal, and may control the brightness of the backlight light source in the backlight assembly 702 according to the backlight driving signal.

On the basis of the embodiment shown in fig. 7, the display device 700 in the present application may be compatible with the start-up function of the display device 700. Next, a specific implementation process of the start-up flow of the display device 700 will be described in detail with reference to fig. 8.

Fig. 8 is a flowchart illustrating a display control method according to an embodiment of the present application. As shown in fig. 8, the display control method of the present application may include:

s101, when the controller 706 receives the power-on command, it starts the os kernel and configures a first level state of the first interface, where the first level state of the first interface is used to instruct the second power circuit 7032 to supply power to the TCON circuit 704.

In this application, after the display device 700 is powered on, the controller 706 may receive a power-on instruction through software codes or hardware circuits, and the power-on instruction is used to instruct the display device 700 to start. The starting-up instruction can be a digital signal or an analog signal, and the specific implementation form of the starting-up instruction is not limited in the application.

Those skilled in the art will appreciate that after the display device 700 is powered on, the operating system kernel needs to be started first. The content of the os kernel may refer to the aforementioned specific description of the os kernel, and is not described herein again. Therefore, when the controller 706 receives the power-on command, the controller 706 may start the operating system kernel to start the display device 700.

In this application, while the controller 706 starts the operating system kernel, the controller 706 may configure a first level state of the first interface (illustrated in fig. 7 with the letter SW) that may instruct the second power circuit 7032 to supply power to the TCON circuit 704.

The first level state of the first interface may be a pull-up state or a pull-down state, which is not limited in this application. The first interface, namely the aforementioned SW interface. And the number of the first interfaces is not limited in the present application.

To facilitate operation of the controller 706, the first interface is an interface electrically connected between the controller 706 and the first power circuit 7031, and the first power circuit 7031 is electrically connected to the second power circuit 7032. Thus, the first power supply circuit 7031 can acquire the first level state of the first interface through the interface between the controller 706 and the first power supply circuit 7031. Based on the first level state of the first interface, the first power circuit 7031 may supply power to the second power circuit 7032 through an electrical connection channel between the first power circuit 7031 and the second power circuit 7032, and transmit a signal corresponding to the first level state of the first interface to the second power circuit 7032, so that the second power circuit 7032 supplies power to the TCON circuit 704 based on the first level state of the first interface. In this way, the controller 706 can synchronously control the first power circuit 7031 and the second power circuit 7032 by using one interface, thereby saving the number of interfaces and simplifying the operation process. For ease of illustration, the foregoing is illustrated in fig. 7.

In addition, the controller 706 may also be electrically connected to the first power circuit 7031 and the second power circuit 7032 through different interfaces, so as to synchronously control the first power circuit 7031 and the second power circuit 7032, and the first power circuit 7031 is electrically connected to the second power circuit 7032 (not shown in fig. 7), which facilitates the controller 706 to control the first power circuit 7031 and the second power circuit 7032 through different interfaces.

S102, the controller 706 generates a boot LOGO under the instruction of the operating system kernel, and controls the second power circuit 7032 to supply power to the TCON circuit 704 based on the first level state of the first interface.

On one hand, since there is an operation (i.e., bootlogo operation) of generating the boot LOGO in the operating system kernel, the controller 706 enters the operating system kernel, and under the instruction of the operating system kernel, the controller 706 may start drawing the boot LOGO, thereby generating the boot LOGO. The method and the device have the advantages that the specific content of the startup LOGO is not limited.

On the other hand, since the second power circuit 7032 is connected to the TCON circuit 704 through hardware, the controller 706 may control the second power circuit 7032 to supply power to the TCON circuit 704 during the generation of the boot LOGO based on the first level state of the first interface.

In this way, in the generation process of the startup LOGO, the TCON circuit 704 has power supply input, which not only shortens the time period that the completed startup LOGO needs to wait for the power supply of the TCON circuit 704, but also makes the TCON circuit 704 after power supply ready for receiving the startup LOGO.

In addition, the first level state of the first interface is further used to instruct the first power circuit 7031 to send a signal for turning on the backlight source of the first area to the backlight driving circuit 705, which is the aforementioned first backlight indication signal. The first level state of the first interface is further used to instruct the second power circuit 7032 to send a signal for turning on the backlight source of the second area to the backlight driving circuit 705, which is the aforementioned second backlight indicating signal.

Based on the first level state of the first interface, the backlight driving circuit 705 may receive a first backlight indication signal transmitted by the first power circuit 7031 or a second backlight indication signal transmitted by the second power circuit 7032. In addition, the backlight driving circuit 705 may further receive a backlight driving signal transmitted by the controller 706, and the specific content of the backlight driving signal may be referred to the foregoing description, which is not described herein again.

S103, after the start-up LOGO is completed, the controller 706 sends the start-up LOGO to the TCON circuit 704, so that the display screen 701 displays the start-up LOGO when the backlight driving circuit 705 controls the backlight source in the backlight assembly 702 to be turned on.

In this application, after the start LOGO is completed, controller 706 adopts forms such as VbyOne display signal, can send start LOGO to TCON circuit 704 for TCON circuit 704 carries out processing such as format to the start LOGO, for display screen 701 prepares to show required data when the backlight source is opened. Moreover, the first power circuit 7031 and the second power circuit 7032 already supply power to the backlight assembly 702, so the backlight driving circuit 705 may control the backlight source in the backlight assembly 702 based on the first backlight indication signal, the second backlight indication signal, and the backlight driving signal to turn on the backlight source in the display area, so that the display screen 701 may display the power-on LOGO.

To avoid the display device 700 from being grayed out, the backlight driving circuit 705 may delay for a period of time to turn on the backlight source of the display area by controlling the backlight assembly 702 when the TCON circuit 704 is ready to display the required data. That is to say, under the cooperation of the backlight driving circuit 705 and the TCON circuit 704, the display screen 701 can display the power-on LOGO, so that the effect that the display device 700 can display when the display device is powered on is achieved.

According to the display control method, when the controller receives a starting-up instruction, not only is the kernel of the operating system started, but also the first level state of the first interface is configured, wherein the first level state of the first interface is used for indicating the second power supply circuit to supply power to the TCON circuit. Therefore, the controller can enter the kernel of the operating system, and can generate the startup LOGO under the indication of the kernel of the operating system, and control the second power supply circuit to supply power to the TCON circuit based on the first level state of the first interface, so that the generation process of the startup LOGO and the power supply process of the TCON circuit can be carried out simultaneously. Therefore, after the startup LOGO is completed, the controller sends the startup LOGO to the TCON circuit, so that the TCON circuit can process formats and the like of the startup LOGO, and the display screen can display the startup LOGO when the backlight light source in the backlight assembly is controlled to be turned on by the backlight driving circuit. In this application, through when starting the operating system kernel, for realizing that the second power supply circuit supplies power to TCON circuit configuration first interface's first level state, make the controller at the in-process that generates the start LOGO, can also control the second power supply circuit and supply power to TCON circuit, thereby, avoided the phenomenon that the start LOGO that has accomplished need wait for the power supply of TCON circuit, make the TCON circuit can prepare data fast for the display screen, so that the display screen in time shows the start LOGO to the user, the time delay of showing the start LOGO has been shortened, user's viewing experience has been promoted, display device's competitiveness has been improved.

As will be appreciated by those skilled in the art, non-volatile memory has the characteristic that data is not lost after a power failure. The volatile memory has the characteristic of high data reading and writing speed. Based on the respective characteristics of the nonvolatile memory and the volatile memory, on the basis of the embodiment shown in fig. 7, as shown in fig. 9, the display device 700 may further include: a non-volatile memory 707 and a volatile memory 708.

The nonvolatile memory 707 stores a startup program in advance, and the startup program includes: the operating program of the operating system kernel is started, and the operating program of the first level state of the first interface is configured. The nonvolatile memory 707 may be disposed on a board together with the controller 706, or may be disposed on another board separately, which is not limited in this application. The non-volatile memory 707 is illustrated separately in fig. 9 for ease of illustration.

The volatile memory 708 provides a cache area for data used by the controller 706 during operation. The volatile memory 708 may be disposed on a board together with the controller 706, may be disposed on another board separately, or may be disposed in the controller 706 integrally, which is not limited in this application. For ease of illustration, the volatile memory 708 is shown separately in FIG. 9.

In a possible implementation manner of S101, based on the above description, the controller 706 may write the boot program in the non-volatile memory 707 to the volatile memory 708 when receiving the boot instruction. Thus, the controller 706 may boot the operating system kernel and configure the first level state of the first interface in the volatile memory 708 according to the boot program.

The boot program is divided into a plurality of portions based on the function of the boot program. In some embodiments, the start-up procedure comprises: an initialization program and a boot program. Wherein, the initialization procedure includes: the operating program that initializes the operating system kernel (i.e., Xboot mentioned earlier) and the operating program that configures the first level state of the first interface. The bootstrap program includes: the operating system kernel starts the operating program (i.e., the aforementioned Uboot).

In some embodiments, the controller 706 may perform initialization of the operating system kernel and configure the first level state of the first interface in the volatile memory 708 according to an initialization program. The controller 706 may then perform a boot of the operating system kernel in accordance with the boot program.

Based on the function description of the foregoing startup program, after the startup program finishes running, the controller 706 may start the kernel of the operating system, and under the instruction of the kernel of the operating system, the controller 706 may start to draw the boot LOGO and generate the boot LOGO.

On the basis of the above-described embodiments shown in fig. 7 to 9, the display apparatus may further include: a sound reproduction means (not shown in fig. 7) configured to render sound data such that the display device 700 is capable of emitting sound by means of the sound reproduction means. The sound reproduction means may include, but is not limited to, audio components and the like.

The display device 700 in the present application may be compatible with the standby function of the display device 700. The controller 706 can also control the first power circuit 7031 to supply power to the second power circuit 7032 based on the first level state of the first interface. Therefore, when the controller 706 receives the standby instruction, the controller 706 needs to control the first power supply circuit 7031 to stop supplying power to the second power supply circuit 7032. Also, because of the first level state based on the first interface, the controller 706 may further instruct the first power circuit 7031 or the second power circuit 7032 to supply power to a power amplifier in the sound reproducing apparatus. Therefore, when the first power circuit 7031 or the second power circuit 7032 is powered off, the power amplifier in the sound reproducing apparatus is powered off very quickly, so that the power amplifier in the sound reproducing apparatus generates abnormal sound.

When the display device 700 needs to be in standby, the controller 706 may receive a standby instruction in the form of a software code or a hardware circuit, and the standby instruction is used to instruct the display device 700 to be in standby. The standby instruction can be a digital signal or an analog signal, and the specific implementation form of the startup instruction is not limited in the application.

In order to avoid the abnormal sound phenomenon of the power amplifier in the sound reproduction device during standby, when the controller 706 receives the standby instruction, on one hand, the controller 706 may configure a level state of the second interface under the instruction of the operating system kernel, where the level state of the second interface is used to instruct to perform a mute operation on the power amplifier in the sound reproduction device, so that the controller 706 may control the power amplifier in the sound reproduction device to mute the power amplifier based on the level state of the second interface, thereby solving the problem of the abnormal sound of the power amplifier during standby.

The level state of the second interface may be a pull-up state or a pull-down state, which is not limited in this application. For example, the second interface may be a MUTE (MUTE) pin of the controller 706, which is electrically connected to a power amplifier in the sound reproduction apparatus 709.

On the other hand, the controller 706 reconfigures the second level state of the first interface, where the second level state of the first interface is used to instruct the second power circuit 7032 to stop supplying power to the TCON circuit 704, so that based on the second level state of the first interface, the controller 706 may control the second power circuit 7032 to stop supplying power to the TCON circuit 704, thereby completely solving the problem of power amplifier standby abnormal sound.

The second level state of the first interface may be a pull-up state or a pull-down state, which is not limited in this application. And the first level state and the second level state of the first interface are different. When the first level state of the first interface is a pull-up state, the second level state of the first interface is a pull-down state. When the first level state of the first interface is a pull-down state, the second level state of the first interface is a pull-up state.

On the basis of the embodiments shown in fig. 7 to 9, the display device 700 in the present application may be compatible with a function of controlling the sound reproduction apparatus to continue playing sound while the display screen 701 is turned off. Since the controller 706 is based on the first level state of the first interface, it may also instruct the first power circuit 7031 or the second power circuit 7032 to supply power to a power amplifier in the sound reproducing apparatus. Therefore, when the first power supply circuit 7031 or the second power supply circuit 7032 stops supplying power, the sound reproducing apparatus cannot produce sound.

In order to solve the above problem, in the present application, when the display device 700 needs to turn off the display screen 701 and control the sound reproduction apparatus to continue playing sound, the controller 706 may receive a screen turn-off instruction by means of software code or a hardware circuit, and the like, where the screen turn-off instruction is used to instruct the sound reproduction apparatus 709 to continue playing sound when the display screen 701 is blank. The screen closing instruction can be a digital signal or an analog signal, and the specific implementation form of the screen closing instruction is not limited in the application.

To avoid the phenomenon that the sound reproduction apparatus cannot generate sound, when the controller 706 receives the screen-off instruction, the controller 706 does not configure the first level state of the first interface to the second level state, so that the first power circuit 7031 or the second power circuit 7032 stops supplying power to the power amplifier in the sound reproduction apparatus.

Because the TCON circuit 704 may change a picture of an image content presented by the display screen, and the backlight driving circuit 705 may control the brightness of the backlight source in the backlight assembly 702, when the controller 706 receives the screen-off instruction, it may send a backlight driving signal to the backlight driving circuit 705, so that the backlight driving circuit 705 may control the backlight source in the backlight assembly 702 to be turned off, thereby achieving the purpose of turning off the display screen 701.

Illustratively, the application also provides a display device. The specific structure of the display device provided in the present application is shown in fig. 7, and may be used to implement the technical solutions in the above method embodiments, and the implementation principle and the technical effect are similar, and are not described herein again.

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

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

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

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

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

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

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

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk, SSD), among others.

Claims

1. A display device, comprising:

a display screen configured to present image content;

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

2. The display device according to claim 1, characterized in that the display device further comprises: a non-volatile memory and a volatile memory;

3. The display device according to claim 2, wherein the start-up procedure comprises: an initialization procedure and a boot procedure, wherein the initialization procedure comprises: initializing an operating program of the operating system kernel and an operating program configuring a first level state of the first interface, the boot program comprising: the operating system kernel is started by the operating program;

4. The display device according to claim 3, wherein the controller is further configured to generate the boot LOGO at the instruction of the operating system kernel after the start-up program runs.

5. The display device of claim 1, wherein the power supply component further comprises a first power supply circuit;

6. The display device according to claim 5, wherein the first power supply circuit is electrically connected to the controller via the first interface, and wherein the first power supply circuit is connected to the second power supply circuit; alternatively, the first and second electrodes may be,

7. The display device according to any one of claims 1 to 6, characterized in that the display device further comprises:

a sound reproduction apparatus configured to present sound data;

8. The display device according to claim 7, wherein the controller is further configured to send a backlight driving signal to the backlight driving circuit to control a backlight light source in the backlight assembly to be turned off and send black shading data to the TCON circuit to drive the display black screen when a screen turn-off instruction is received, the screen turn-off instruction is used for instructing the display black screen and the sound reproducing apparatus plays sound.

9. A display control method is applied to a display device, and the display device comprises: the display device comprises a display screen, a backlight component, a power supply component, a TCON circuit, a backlight driving circuit and a controller; a display screen configured to present image content; a backlight assembly configured to provide a backlight light source to the display screen; a power supply component configured to provide electrical energy, the power supply component comprising a second power supply circuit; a TCON circuit configured to drive the display screen to present image content; a backlight driving circuit configured to control a brightness of a backlight light source in the backlight assembly;

the method comprises the following steps:

10. The method of claim 9, wherein the display device further comprises: a non-volatile memory and a volatile memory;