CN113163242B

CN113163242B - Display device control method and display device

Info

Publication number: CN113163242B
Application number: CN202010511572.1A
Authority: CN
Inventors: 庞震华; 张洪浩; 孙学斌
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2020-01-22
Filing date: 2020-06-08
Publication date: 2022-06-21
Anticipated expiration: 2040-06-08
Also published as: CN113163142A; CN113163143B; CN113157358A; CN113163538A; CN113163239B; CN113163241B; CN113157612B; CN113163538B; CN113163242A; CN113163241A; CN113157358B; CN113163240A; CN113163238A; CN113163143A; CN113163237A; CN113163238B; CN113157612A; CN113163243B; CN113163142B; CN113163237B

Abstract

In the starting process, a power circuit in a host unit firstly provides a second electric signal with smaller voltage to a display screen through a connecting wire, and after the host unit and the display screen are confirmed to be connected through the connecting wire, the power circuit is controlled to provide a first electric signal with larger voltage to the display screen through the connecting wire. The display screen control method and the display device can prevent the second electric signal with higher voltage transmitted in the connecting line from bringing loss to the display screen and a user under abnormal conditions such as disconnection of the connecting line, and the potential safety hazard of the display device is reduced.

Description

Display device control method and display device

The present application claims priority from the chinese patent application filed on 22.01.2020, having application number 2020100747123 and entitled "display device," the entire contents of which are incorporated herein by reference.

Technical Field

The present invention relates to electronic technologies, and in particular, to a display device and a control method thereof.

Background

Along with the continuous development of electronic technology, split type design thinking has been proposed to display device's such as TV set producers to split type TV set is the example, and split type TV set separates display screen from the main part of TV set, sets up as solitary structure, and some display screens that set up alone can also rotate through the motor. Therefore, by adopting the split structure, the display screen can be made thinner without being limited by the display device, and the occupation of the space by the television is reduced so as to improve the user experience.

In the prior art, after most display devices receive mains supply alternating current through a plug, a power supply circuit specially arranged on a power panel is adopted to convert the alternating current into direct current, transform the alternating current and the like, and then the power supply circuit supplies power to loads such as a main board, a display screen and the like in the display device. However, the prior art does not disclose a specific way of supplying power to the display device through the connection line in the split display device, and because the host provides a relatively low-voltage electrical signal to a load such as a processor in the display screen through the connection line and also provides a relatively high-voltage electrical signal to the backlight module in the display screen through the connection line, the relatively high-voltage electrical signal may cause damage to a user and the display screen when the connection line is disconnected and a main board of the display screen is not started, so that the display device has a certain potential safety hazard.

Therefore, how to design a time sequence for supplying power to the display device through the external connecting line by the host of the split display device, and reducing the potential safety hazard brought to the display device by the high-voltage electric signal transmitted in the connecting line is a technical problem to be solved in the field.

Disclosure of Invention

The application provides a display device control method and a display device, which are used for carrying out time sequence control on an electric signal transmitted to a display screen by a host unit through a connecting wire in a power-on process of starting up the display device, so that potential safety hazards caused when the host unit still transmits the electric signal to the display screen through the connecting wire under the condition that the connecting wire between the host unit and the display screen is not connected are prevented.

A first aspect of the present application provides a display device control method applied to a display device, where the display device includes: the display screen comprises a host unit, a display screen which is designed separately from the host unit, and a connecting wire; the host unit is connected with the display screen through the connecting line; the host unit includes: a power supply circuit and a first information handling system circuit, the first information handling system circuit comprising: a first processor; the display screen includes: the second information processing system circuit, the backlight module and the display panel; the power supply circuit is used for supplying power to the second information processing system circuit and the backlight module through the connecting wire;

the display device control method includes: the first processor receives starting indication information; the first processor controls the power circuit to send a first electric signal to the second information processing system circuit through the connecting line so as to supply power to the second information processing system circuit; the first processor receives a first feedback signal or a second feedback signal sent by the second information processing system circuit; and the first processor controls the power circuit to send a second electric signal to the backlight module through the connecting wire so as to supply power to the backlight module.

In an embodiment of the first aspect of the present application, a voltage of the first electrical signal is smaller than a voltage of the second electrical signal.

In an embodiment of the first aspect of the present application, the second information handling system circuitry comprises: a resistance; the first end of the resistor is connected with the host unit through the connecting wire, and the second end of the resistor is grounded; the first processor judges whether the host unit is connected with the display screen through the connecting line, and comprises: when a first feedback signal sent by the second information processing system circuit is received and the first end of the resistor is at a low level, the first processor determines that the host unit is connected with the display screen through the connecting line; after receiving the HDMI signal sent by the first information processing system circuit, the second information processing system circuit sends the first feedback signal to the first information processing system.

In an embodiment of the first aspect of the present application, the second information handling system circuitry comprises: a resistance; the first end of the resistor is connected with the host unit through the connecting wire, and the second end of the resistor is grounded; the first processor judges whether the host unit is connected with the display screen through the connecting line, and comprises: when a second feedback signal sent by the second information processing system circuit is received and the first end of the resistor is at a low level, the first processor determines that the host unit is connected with the display screen through the connecting line; and after the second information processing system circuit determines that the backlight module works normally, the second information processing system circuit sends the second feedback signal to the first information processing system.

In an embodiment of the first aspect of the present application, the controlling, by the first processor, the power circuit to send a second electrical signal to the backlight module through the connection line to supply power to the backlight module includes: the first processor sends a backlight control signal to the power circuit, and controls the power circuit to send a second electric signal to the backlight module through the connecting line so as to supply power to the backlight module.

In an embodiment of the first aspect of the present application, the first processor controlling the power circuit to send a first electrical signal to the second information processing system circuit to supply power to the second information processing system circuit includes: the first processor controls the power circuit to send a first electrical signal to the second information processing system circuit through the connection line by sending an STB signal to the power circuit to power the second information processing system circuit.

A second aspect of the present application provides a display device comprising: the display screen comprises a host unit, a display screen which is designed separately from the host unit, and a connecting wire; the host unit is connected with the display screen through the connecting line; the host unit includes: a power supply circuit and a first information handling system circuit, the first information handling system circuit comprising: a first processor; the display screen includes: the second information processing system circuit, the backlight module and the display panel; the power supply circuit is used for supplying power to the information processing system circuit and is also used for supplying power to the second information processing system circuit and the backlight module through the connecting wire; the first processor is used for receiving starting indication information; controlling the power supply circuit to send a first electric signal to the second information processing system circuit through the connecting line so as to supply power to the second information processing system circuit; receiving a first feedback signal or a second feedback signal sent by the second information processing system circuit; and controlling the power supply circuit to send a second electric signal to the backlight module through the connecting line so as to supply power to the backlight module.

In an embodiment of the second aspect of the present application, the voltage of the first electrical signal is smaller than the voltage of the second electrical signal.

In one embodiment of the second aspect of the present application, the second information handling system circuitry comprises: a resistance; the first end of the resistor is connected with the host unit through the connecting wire, and the second end of the resistor is grounded; when the host unit is connected with the display screen through the connecting line, the first end of the resistor is at a low level, and when the host unit is not connected with the display screen through the connecting line, the first end of the resistor is at a high level; the first processor is specifically configured to determine that the host unit is connected to the display screen through the connection line when a first feedback signal sent by the second information processing system circuit is received and the first end of the resistor is at a low level; after receiving the HDMI signal sent by the first information processing system circuit, the second information processing system circuit sends the first feedback signal to the first information processing system.

In one embodiment of the second aspect of the present application, the second information processing system circuitry comprises: a resistance; the first end of the resistor is connected with the host unit through the connecting wire, and the second end of the resistor is grounded; when the host unit is connected with the display screen through the connecting line, the first end of the resistor is at a low level, and when the host unit is not connected with the display screen through the connecting line, the first end of the resistor is at a high level; the first processor is specifically configured to determine that the host unit is connected to the display screen through the connection line when a second feedback signal sent by the second information processing system circuit is received and the first end of the resistor is at a low level; after the second information processing system circuit determines that the backlight module works normally, the second information processing system circuit sends the second feedback signal to the first information processing system

In an embodiment of the second aspect of the present application, the first processor is specifically configured to send a backlight control signal to the power circuit, and control the power circuit to send a second electrical signal to the backlight module through the connection line, so as to supply power to the backlight module.

In an embodiment of the second aspect of the present application, the first processor is specifically configured to control the power circuit to send a first electrical signal to the second information processing system circuit through the connection line by sending an STB signal to the power circuit to supply power to the second information processing system circuit.

In summary, according to the control method of the display device and the display device provided by the application, in the process of starting up the split type display device, the power circuit in the host unit firstly provides the second electrical signal with a smaller voltage to the display screen through the connection line, so as to supply power to the second processor and the third processor in the display screen; then, the first processor in the host unit needs to determine whether the host unit is connected to the display screen through the connection line, and after it is determined that the host unit is indeed connected to the display screen through the connection line, the first processor controls the power circuit to provide a first electrical signal with a larger voltage to the display screen through the connection line, so as to supply power to the backlight module in the display screen. Therefore, the display screen control method provided by this embodiment enables the power supply circuit of the display screen not to directly send the second electrical signal with a larger voltage to the display screen during the power-on process, but to send the first electrical signal with a lower voltage first and send the second electrical signal after determining that the connecting line is normally connected, thereby preventing the second electrical signal with a higher voltage transmitted in the connecting line from bringing losses to the display screen and the user under abnormal conditions such as disconnection of the connecting line, and further reducing the potential safety hazard of the split display device.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control device according to an embodiment;

fig. 2 is a block diagram schematically showing a configuration of the control apparatus 100 according to an exemplary embodiment;

fig. 3 is a diagram schematically illustrating a hardware configuration of a hardware system in the display apparatus 200 according to the exemplary embodiment;

FIG. 4 is a schematic diagram of an interface on a display device;

FIG. 5 is a schematic diagram showing the connection of a power circuit to a load;

fig. 6 is a block diagram illustrating an exemplary hardware architecture of the display device according to fig. 2, 3 or 4;

fig. 7 is a diagram schematically illustrating a functional configuration of a display apparatus according to an exemplary embodiment;

FIG. 8 is a schematic structural diagram of an embodiment of a display device provided in the present application;

fig. 9 is a schematic structural diagram of an embodiment of a display device provided in the present application;

fig. 10 is a flowchart illustrating a display device control method according to an embodiment of the present disclosure;

fig. 11 is a schematic structural diagram of an embodiment of a display device provided in the present application;

fig. 12 is a flowchart illustrating a display device control method according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

The present application is directed to a display device having a rotatable display screen, and the structure, function, and implementation of the display device will be described in detail below.

Some display devices with split type are currently a new type, for example: a split TV. The separate type display apparatus can separate the display screen from the display apparatus main body as a separate structure setting, that is, the separate type display apparatus includes at least: a host unit (which may be referred to as a host, a "box," etc. in some specific product implementations), and a display screen connected to the host unit; the host unit is used for generating display content, connecting a power supply and the like, supplying power to the display screen and transmitting the content to be displayed to the display screen for display, and the display device is used for displaying the content to be displayed transmitted by the host unit. By adopting the split structure, the display screen of the display device can be thinner and thinner.

More specifically, the application discloses a rotatable split type display device, can realize display device's display screen's rotation to and reduce the complexity of the connecting wire between display device host computer unit and the display screen. The display screen can rotate in the installation plane, for example, the display screen is parallel to the wall surface and is installed on the wall body, then the installation screen of the display screen is parallel to the wall surface, and the display screen can rotate 360 degrees in the installation plane parallel to the wall surface.

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 various embodiments of the present application refers to a component of an electronic device (e.g., a display device as disclosed herein) 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 hardware in the common remote control device with the user interface in the touch screen.

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

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

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control device according to an embodiment. As shown in fig. 1, a user may operate the display device 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 through a wireless or other wired manner. The user can input a user instruction through a key on the remote controller 100A, voice input, control panel input, or the like to control the display apparatus 200. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right moving keys, a voice input key, a menu key, an on/off key, etc. of the remote controller 100A to control the functions of the display apparatus 200.

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

For example, the mobile terminal 100B and the display device 200 may each be installed with a software application, 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/video content displayed on the mobile terminal 100B may also be transmitted to the display device 200, so as to implement a synchronous display function.

As shown in fig. 1, the display device 200 may also perform data communication with the server 300 through various communication means. In various embodiments of the present application, the display device 200 may be allowed to be in wired or wireless communication connection with the server 300 through 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 a display screen 201 and a host unit 202, wherein the display screen 201 is connected to the host unit 202 via a connection line 203. More specifically, the host unit 202 may be connected to a power source and transmit a power signal to the display screen 201 through the connection line 203 to supply power to the display screen 201. Meanwhile, the host unit 202 may further obtain the content to be displayed from the server 300 and transmit the content to be displayed to the display screen 201 through the connection line 203 in an electrical signal manner, so that the display screen 201 displays the received content to be displayed.

The display device 200 may be, on one hand, 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 limited, 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 providing 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.

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

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

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

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

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

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

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

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

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

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

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

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

In particular, the core idea of the display device with the rotatable display screen provided by the embodiment of the present application is that the display device is specially configured for some special scenes, such as taking a picture, shaking a sound, singing, and the like, and in the scene, the effect of the vertical screen is better than that of the horizontal screen. In addition, as a specific implementation, the rotary television is a split television design, and comprises a screen end and a box end, wherein the screen end is only a display screen and a TCON; the box end is provided with a power circuit, an information processing system circuit, a sound device and the like. They are transmitted by optical fiber lines. The power circuit may also be referred to as a power strip.

Fig. 3 is a diagram schematically illustrating a hardware configuration of a hardware system in the display apparatus 200 according to the exemplary embodiment. For convenience of explanation, the display device 200 in fig. 3 is illustrated by using a liquid crystal display screen as an example.

As shown in fig. 3, the display device 200 includes: a panel 1, a backlight assembly 2, an information processing system circuit 3, a power supply circuit 4, a rear case 5, and a base 6. Wherein, the panel 1 is used for presenting pictures for users; the backlight assembly 2 is located below the panel 1, usually some optical assemblies, for supplying sufficient light source with uniform brightness and distribution, so that the panel 1 can normally display images, the backlight assembly 2 further includes a back plate 20, the information processing system circuit 3 and the power circuit 4 are arranged on the back plate 20, usually some convex hull structures are formed by punching on the back plate 20, and the information processing system circuit 3 and the power circuit 4 are fixed on the convex hulls through screws or hooks; the rear case 5 is covered on the panel 1 to hide the parts of the display device such as the backlight assembly 2, the information processing system circuit 3 and the power circuit 4, and has an aesthetic effect; and a base 6 for supporting the display device.

Further, the above display apparatus is connected to a host unit (tv box) of the display apparatus 200 through an HI-LINK data line, and the host unit is also connected to a power adapter through an AC data line. Therefore, fig. 4 is a schematic diagram of an interface on a display device, and the display device may be provided with an HI-LINK interface for connecting an HI-LINK data line, and may also be provided with a TYPE-C interface.

Optionally, the display screen of the display device may also include an information processing system circuit and a power supply circuit therein, and the host unit information processing system circuit is configured to generate the content to be displayed and transmit the content to the information processing system circuit of the display screen through the HI-LINK data line, so that the display device displays the content to be displayed. The power supply circuit in the host unit may be configured to transmit power to the information handling system circuitry of the display screen to provide power to the display screen, and the display screen may not include the power supply circuit but only receive power provided by the power supply circuit of the host unit.

Optionally, fig. 3 further includes a key sheet, and the key sheet may be disposed on the back plate of the display device, which is not limited in this application.

In addition, the display device 200 further includes a sound reproducing device (not shown), such as an audio component, e.g., an I2S interface including a power Amplifier (AMP) and a Speaker (Speaker), for realizing sound reproduction. 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 of the display device 200 may also be an OLED display screen, so that the template included in the display device 200 is changed accordingly, which is not described herein too much.

Fig. 5 is a schematic diagram showing a connection relationship between a power supply circuit and a load, and fig. 5 shows a possible connection relationship between the power supply circuit and the load IN a display device IN which the power supply circuit 4 of a host unit includes an input terminal IN connected to a commercial power and an output terminal OUT (a first output terminal OUT1, a second output terminal OUT2, a third output terminal OUT3 and a fourth output terminal OUT4 are shown), for example, the first output terminal OUT1 is connected to a sound component, the second output terminal OUT2 is connected to an information processing system circuit, and the third output terminal OUT3 is connected to a display drive board. In addition, the fourth output terminal OUT4 is connected to the display screen, and the host unit of the display device transmits power to the display screen through the HI-LINK connection line, for example, to an information processing system circuit that may be connected to the display screen to supply power to the display screen. The power supply circuit 4 needs to convert ac power into dc power required by a load and a display screen, and the dc power is generally of different specifications, for example, 18V is required for audio components, 12V/18V is required for the information processing system circuit 31, and the like.

The system architecture of the display device of the present application is further described with reference to fig. 6. It should be noted that fig. 6 is only an exemplary illustration and does not represent a limitation of the present application. In actual implementation, more or less hardware or interfaces may be included as desired.

Fig. 6 is a block diagram illustrating an exemplary hardware architecture of the display apparatus 200 according to fig. 2, 3 or 4. As shown in fig. 5, the hardware system of the display device 200 may include a controller, and modules connected to the controller through various interfaces.

Wherein the controller may be provided on the interactive board shown in fig. 2 or on the information processing system circuit 3 shown in fig. 3. Optionally, the controller may include a tuning demodulator 220, a communicator 230, an external device interface 250, a first controller 210, a memory 290, a user input interface 260-3, a video processor 260-1, an audio processor 260-2, a display screen 280 (connected to the display screen 280 through a HI-LINK connection line), an audio output interface 270, a power supply circuit 240 (which may also be referred to as a power supply module), a detector 340, an external device interface 350, and a video processor 360. The controller may include more or fewer modules in other embodiments.

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 signal can be adjusted in 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 tuning 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 device or a content providing device through the communicator 230. For example, the communicator may receive a control signal of the remote controller 100A according to the control of the first controller 210.

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

In some embodiments, the display device is further connected to one or more sensors through an external device interface. The one or more sensors include, but are not limited to: acceleration sensors, gyroscope sensors, pressure sensors, fingerprint sensors, optical sensors, and proximity sensors.

The acceleration sensor can detect the magnitude of acceleration on three coordinate axes of a coordinate system established with the bluetooth device. For example, an acceleration sensor may be used to detect the components of the gravitational acceleration in three coordinate axes. The processor can control the touch display screen to display the user interface in a transverse view or a longitudinal view according to the gravity acceleration signal acquired by the acceleration sensor. The acceleration sensor can also be used for acquisition of motion data of a game or a user.

The gyroscope sensor can detect the organism direction and the turned angle of the bluetooth device, and the gyroscope sensor can cooperate with the acceleration sensor to acquire the 3D action of the user on the bluetooth device. The processor can realize the following functions according to the data collected by the gyroscope sensor: motion sensing (such as changing the UI according to a user's tilting operation), image stabilization at the time of photographing, game control, and inertial navigation.

The pressure sensor can be arranged on the side frame of the Bluetooth device and/or on the lower layer of the touch display screen. When pressure sensor set up the side frame at bluetooth equipment, can detect the user to bluetooth equipment's the signal that grips, grip the signal by the treater according to pressure sensor collection and carry out left and right hands discernment or swift operation. When the pressure sensor is arranged at the lower layer of the touch display screen, the processor controls the operable control on the UI interface according to the pressure operation of the user on the touch display screen. The operability control comprises at least one of a button control, a scroll bar control, an icon control and a menu control.

The fingerprint sensor is used for collecting fingerprints of users, and the identity of the users is identified by the processor according to the fingerprints collected by the fingerprint sensor, or the identity of the users is identified by the fingerprint sensor according to the collected fingerprints. And when the identity of the user is identified as a credible identity, the processor authorizes the user to execute relevant sensitive operations, wherein the sensitive operations comprise screen unlocking, encrypted information viewing, software downloading, payment, setting change and the like. The fingerprint sensor may be provided on the front, back or side of the bluetooth device. When a physical button or a manufacturer Logo is provided on the bluetooth device, the fingerprint sensor may be integrated with the physical button or the manufacturer Logo.

The optical sensor is used for collecting the intensity of ambient light. In one embodiment, the processor may control the display brightness of the touch display screen based on the ambient light intensity collected by the optical sensor. Specifically, when the ambient light intensity is higher, the display brightness of the touch display screen is increased; and when the ambient light intensity is lower, the display brightness of the touch display screen is reduced. In another embodiment, the processor can also dynamically adjust shooting parameters of the camera assembly according to the ambient light intensity collected by the optical sensor.

Proximity sensors, also known as distance sensors, are typically provided on the front panel of the bluetooth device. The proximity sensor is used for collecting the distance between a user and the front surface of the Bluetooth device. In one embodiment, when the proximity sensor detects that the distance between the user and the front face of the Bluetooth device is gradually reduced, the processor controls the touch display screen to be switched from a bright screen state to a dark screen state; when the proximity sensor detects that the distance between the user and the front face of the Bluetooth device is gradually increased, the processor controls the touch display screen to be switched from the screen-off state to the screen-on state.

The external device interface 250 may include: HI-LINK interface and TYPE-C interface. A High Definition Multimedia Interface (HDMI) terminal also referred to as HDMI 251, a Composite Video Blanking Sync (CVBS) terminal also referred to as AV 252, an analog or digital component terminal 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. 6 and 7, the first controller 210 includes a random access memory RAM 214, a read only memory ROM 213, a graphic processor 216, a CPU processor 212, a communication interface 218, and a communication bus. The RAM 214, the ROM 213, 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 when a power-on signal is received, 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 the rendered result is transmitted to the display device 280 through the HI-LINK data line and displayed by the display screen 280.

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

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

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

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

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

The memory 290 includes 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 for 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 screen 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, an audio signal and the like.

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

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

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

A display screen 280 for receiving the image signal from the input of the video processor 260-1. It will be appreciated that in one particular implementation of fig. 6, in addition to the display screen 280, it is provided within the host unit of the display device; alternatively, in other possible implementations, an audio playing device such as a speaker may be further disposed in the display screen 280, which is not limited in this application. The display screen 280 for displaying video content and images and menu manipulation interface includes a display screen component for presenting pictures and a driving component for driving the display of images. 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 screen 280 is displayed while a user manipulation interface UI generated in the display apparatus 200 and used to control the display apparatus 200 is displayed.

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

The power supply circuit 240 is configured to provide power supply support for the display apparatus 200 by using power input from an external power source under the control of the first controller 210. The power supply circuit 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.

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

An external device interface 350, which provides a component for data transmission between the second controller and the N-chip 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.

It will be appreciated by those skilled in the art that the arrangements shown in the figures are not intended to be limiting of the display device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components may be used.

Fig. 7 is a diagram schematically illustrating a functional configuration of a display device according to an exemplary embodiment. As shown in fig. 7, the memory 290 is specifically used for storing an operating program for driving the first controller 210 in the display apparatus 200, and storing various applications built in the display apparatus 280, 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 screen 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, a second audio control module, an external instruction recognition module, a communication control module, a light receiving module, an operating system, and other application programs, a browser module, 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.

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

Fig. 1 to 7 show schematic structural diagrams of a display device provided in the present application, where the display device is merely an exemplary illustration, and the display device provided in the present application may be the display device described in fig. 1 to 7, or may be another display device, and is not limited.

Fig. 8 is a schematic structural diagram of an embodiment of a display device provided in the present application, and the display device shown in fig. 8 may be the display device shown in any one of fig. 1 to 7, or may also be another display device not shown in fig. 1 to 7. Specifically, the display device provided by the present embodiment includes: host unit 1 and display screen 2, wherein, display screen 2 of display device sets up outside host unit 1, with host unit 1 split type setting, namely, display device's host unit 1 and display screen 2 set up independently each other, realize the display device who has split type display screen. The main unit 1 and the display screen 2 are connected by a connection line 3. It should be noted that the host unit 1 may be referred to as a host, a box end, etc., and the display screen 2 may be referred to as a screen end, etc.

In the display device shown in fig. 8, the power supply circuit 12 (which may also be referred to as a power supply board) and the first information processing system circuit (which may also be referred to as a motherboard) 11 are specifically provided in the host unit 1, and the power supply circuit 12 and the first information processing system circuit 11 in the host unit 1, and the display screen 2 can at least realize the following functions through the connection line 3 therebetween: in a first aspect, the first information processing system circuit 11 in the host unit 1 may be configured to determine a picture to be displayed on the display screen 2, and send an optical signal of the picture to be displayed to the display screen 2 through the connection line 3 for displaying. In a second aspect, when the host unit 1 is connected to a power source, the power circuit 12 in the host unit 1 may supply power to the display screen 2 through the connection line 3, where the power supply to the display screen 2 includes, but is not limited to, supplying power to loads such as a backlight module for implementing backlight in the display screen 2, a display panel for displaying an optical signal, and the like.

In order to reduce the number of connecting lines, in the display device provided by the present application, at least the above-mentioned functions can be realized between the host unit 1 and the display screen 2 through an external connecting line 3. The connection line 3 may be a HI-LINK connection line, and the connection line 3 includes a transmission line and an interface for transmitting different signals, that is, the display device provides an intuitive feeling to a user that the host unit 1 and the display screen 2 are connected through only one connection line, and the physical connection line may be understood as a set of a plurality of transmission lines for transmitting different signals, where the plurality of transmission lines may be of various specifications and capable of transmitting different signals, for example, a transmission line required in the function of the first aspect is used for transmitting an optical signal, a transmission line required in the function of the second aspect is used for transmitting an electrical signal, and the like.

Because the display device that this application provided in fact, only connect through a connecting wire 3 between host computer unit 1 and the display screen 2, consequently on host computer unit 1 and the display screen 2 of display screen, all need set up suitable connecting wire interface for connecting wire 3 separately for the user is with the first end of connecting wire and the connecting wire interface connection of host computer unit 1, after the connecting wire interface connection of second end and display screen 2, can realize aforementioned function through connecting wire 3 between host computer unit 1 and the display screen 2. For example, when the connection line 3 is a HI-LINK connection line, the connection line interface may be a HI-LINK interface.

More specifically, fig. 9 is a schematic structural diagram of an embodiment of the display device provided in the present application, and fig. 9 shows a more specific structure of the host unit 1 and the display screen 2 in the display device shown in fig. 8, and as shown in fig. 9, the display device provided in the present embodiment at least includes, on the host unit 1 side: a power supply circuit 12 and a first information processing system circuit 11; the first information processing system circuit 11 includes: a first processor 111. At least on one side of the display screen 2: a second information processing system circuit 21, a backlight module 22 and a display panel 23, the second information processing system circuit comprising: a second processor 214, a backlight control circuit 213, and a third processor 212. It should be noted that the modules shown in the display device shown in fig. 9 are only used to describe the embodiments of the present application, and other modules that may be included in the display device are not shown in the drawings, and the functions of the modules in the display device shown in fig. 9 are described below.

The first processor 111 included in the first information processing system circuit 11 may be an SoC, and may be used to perform display control and the like on the display screen 2. The second processor 214 included in the second information processing system circuit 21 may be an SoC, and the backlight control circuit 211 may be a backlight IC, which may be used to drive the backlight module 22 of the display screen 2. The power circuit 12 is used for receiving a power input of a commercial power ac, converting the input ac into a dc with different voltages, and then supplying power to the information processing system circuit 11 of the host unit 1, the second processor 214 on the side of the display screen 2, and the backlight module 22.

Since the voltage required by the backlight module 22 on the display screen 2 side is greater than the voltage required by the second processor 214, the second information processing system circuit 21 on the host unit 1 side can convert the dc power into different voltages in the form of a plurality of LLC windings to respectively supply power to the backlight module 22 and the second processor 214. Specifically, the direct current with higher voltage and larger current, such as 150V, required by the backlight module 22 in the display screen 2 is regarded as the first electrical signal, and the direct current with lower voltage and smaller current, such as 3V, 3.3V or 5V, required by the second processor 214 and the third processor 212 in the display screen 2 is regarded as the second electrical signal. After the power supply circuit 12 receives the commercial power ac power, the power supply circuit 12 may convert the ac power into a first electrical signal and a second electrical signal, and transmit the first electrical signal to the backlight control circuit 213 in the display screen 2, and the backlight control circuit 213 uses the first electrical signal to supply power to the backlight module 22 and drive to light the backlight module 22; the power supply circuit also transmits the second electrical signal to the second processor 214 and the third processor 212 in the display screen 2 to power the second processor 214. Optionally, the second information processing system circuit 21 on the side of the display screen 2 may further include a DC-DC conversion circuit for converting the second electric signal into different voltages required by the third processor 212 and the second processor 214, respectively, and then supplying power to the third processor 212 and the second processor 214, respectively.

In particular, the display device provided in this embodiment further includes a third processor 212 in the second information processing system circuit 21 on the side of the display screen 2, where the third processor 212 may be a Micro Controller Unit (MCU) for initializing the backlight control circuit 213. The third processor 212 is connected to the first processor 111 on the host 1 side, in addition to the backlight control circuit 213. Specifically, the first processor 111 and the third processor 212 may be connected by an Inter-Integrated Circuit (I2C) connection line, a Serial Peripheral Interface (SPI) connection line, or other Serial connection lines between the host 1 and the display screen 2, so that the first processor 111 may send a control command to the third processor 212 through the I2C connection line, the SPI connection line, or the Serial connection line, and after receiving the control command, the third processor 212 may initialize the backlight control Circuit 213 according to the control command, so that the backlight control Circuit 213 starts to operate. In addition, the backlight control circuit 213 also stores the operating state of the backlight control circuit 213 through a register, so that the first processor 111 can read the operating state of the backlight control circuit 213 stored by the third processor 212 through the I2C connection line, the SPI connection line, or the serial connection line.

Meanwhile, the display screen 2 provided in the embodiment may be a display mode combining the backlight module 22 and the display panel 23. The Display panel 23 of the Display screen 2 may be, for example, a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), a laser projection hard screen, an image Display film, or a touch control film, and the Display screen 2 may Display a picture corresponding to the optical signal on the Display panel 23 and be lit in cooperation with the backlight module 22 of the Display screen 2 to jointly implement a Display function. Therefore, in addition to the host unit 1 supplying power to the backlight module 22 of the display screen, the first processor 111 in the host unit 1 needs to send an electrical signal of the display picture, such as an HDMI signal, to the second processor 214 of the display screen, so that the second processor 214 controls the display picture on the display panel 23, and finally, the display function of the display screen 2 is realized. Since the host unit 1 and the display screen 2 are connected by the connection line 3, the first processor 111 of the host unit 1 in the present embodiment can also transmit an HDMI signal to the second processor 214 of the display screen 2 through the connection line 3. The received HDMI signal can be converted into a VB1 signal for the second processor 214, and finally the VB1 signal is transmitted to the display panel 23 to be displayed by the display panel 23.

Further, in the display device as shown in fig. 9, since the voltage of the second electrical signal provided by the host unit 1 to the loads such as the second processor 214, the third processor 212, and the like in the display screen 2 through the connection line is low, the voltage of the first electrical signal provided to the backlight module 22 in the display screen 2 is high, and both the first electrical signal and the second electrical signal need to be transmitted through the connection line 3 between the host unit 1 and the display screen 2. Once the connection line 3 is not connected or disconnected for some reason, or the backlight control circuit 213 in the second information processing system circuit 21 of the display screen 2 has not been initialized, the electrical signal transmitted from the host unit 1 to the display screen 2 through the connection line 3, especially the first electrical signal with a large voltage, may cause damage to the display screen 2 itself and the user, so that the display apparatus has a certain potential safety hazard. Therefore, the present application further provides a control method of a display device, which can be executed by the first processor 111 in the display device shown in fig. 9, and is used for performing timing control on an electrical signal transmitted from the host unit 1 to the display screen 2 through the connection line 3 in a power-on process of starting up the display device, so as to prevent a potential safety hazard caused when the host unit 1 still transmits the electrical signal to the display screen 2 through the connection line 3 under a condition that the connection line 3 between the host unit 1 and the display screen 2 is not connected.

Specifically, fig. 10 is a schematic flowchart of an embodiment of a control method of a display device provided in the present application, where the control method of the display device shown in fig. 10 includes:

s101: and receiving the starting indication information.

Specifically, the present application is designed for the power-on sequence during the power-on process of the display device, and the display device may be in the standby state before S101, and as shown in fig. 9, the host unit 1 of the display device is connected to the external power input through the power circuit 12, but does not output the electric power to the display screen 2 side through the connection line. At this time, the first processor on the side of the main unit 1 may transmit an STB signal of a low level, where the STB signal indicates that the display device is in a standby state when the STB signal is a low level; when the STB signal is high, it indicates that the display device is in the working state.

Then in S101, the first processor 111 in the display apparatus may start a power-on operation according to the power-on indication information after receiving the power-on indication information sent by the user through a remote controller or the like in the standby state, where the power-on operation includes switching the display state of the display apparatus from the standby state to the operating state.

S102: and controlling the power supply circuit to send a second electric signal to the second information processing system so as to supply power to the second information processing system through the second electric signal.

Subsequently, the first processor 111, after receiving the power-on indication information, performs a power-on operation including controlling the power supply 12 to supply power to the first information processing system and controlling the power supply circuit to supply power to the second information processing system.

Alternatively, in a specific implementation manner of S102, the first processor 111 may specifically instruct the power circuit 12 to start switching from the standby state to the operating state by means of the high-level STB signal sent by the power circuit 12, and then the power circuit 12 first sends the second electrical signal to the second information processing system 21 through the connection line 3, so as to supply power to the second processor 214 and the third processor 212 in the second information processing system 21, but not to supply power to the backlight module 22 immediately after receiving the STB signal.

S103: and judging whether the host unit is connected with the display screen through a connecting wire. Specifically, in this embodiment, the first processor determines whether the host unit is connected to the display screen through the connection line by whether to receive the first feedback signal or the second feedback signal fed back by the second information system.

In particular, in the present embodiment, the first processor 111 determines whether the connection line 3 between the host unit 1 and the display screen 2 is connected after controlling the power supply circuit 12 to supply power to the second information processing system circuit 21 through the connection line 3, and controls the power supply circuit 12 to send the first electric signal of the backlight module 22 to the display screen 2 side through the connection line 3 in the case where it is determined that the host unit 1 and the display screen 2 are indeed connected through the connection line 3.

Specifically, in order to realize the detection of the connection line 3 between the host unit 1 and the display screen 2 and the determination of whether the connection line is connected, the present application provides a display device in which a resistor for detection is further provided on the display screen 2 side. For example, fig. 11 is a schematic structural diagram of an embodiment of a display device provided in the present application, and as shown in fig. 11, on the basis of fig. 10, the second information processing system circuit 21 further includes: the first terminals of the

resistors

215 and 218 can be connected to the host unit 1 through the connection line, and the second terminal of the resistor 215 is grounded, which can be used to detect whether the display screen 2 is connected to the host unit 1 through the connection line 3. When the display screen 2 is not connected to the host unit 1 through the connection line 3, the level HILINK HPD at the first end of the resistor 215 is pulled high, and when the display screen 2 is connected to the host unit 1 through the connection line 3, the level HILINK HPD at the first end of the resistor 215 is pulled low. It is necessary for the first processor 111 to receive the low level HILINK HPD first before it can determine that the host unit 1 and the display screen 2 are connected through the connection line 3.

Fig. 12 is a schematic flowchart of an embodiment of a control method of a display device according to the present application, where in the method shown in fig. 12, based on the method shown in fig. 11, S103 specifically includes: s1031: the first terminal of the resistor is determined to be low. Subsequently, S1032 or S1033 may be alternatively performed.

In a specific implementation, after S1031, in addition to receiving the low-level HILINK HPD, the first processor 111 needs to receive the first feedback signal sent by the second processor 214 in the second information processing system circuit 21 in S1032 before determining that the host unit 1 and the display screen 2 are connected through the connection line 3. Wherein the first feedback signal may be an HDMI HPD. After the first processor 111 sends the HDMI signal to the second processor, the second processor sends an HDMI feedback signal, that is, HDMI HPD, to the first processor 111 after receiving the HDMI signal, and when the first processor 111 receives the HDMI HPD signal, it can be determined that the connection line 3 between the host unit 1 and the display screen 2 is connected according to the first inverse signal, and the first electrical signal with higher voltage can be sent to the display screen 2 through the connection line 3.

In another specific implementation, after S1031, in addition to receiving HILINK HPD with low level, the first processor 111 needs to receive the second feedback signal sent by the third processor 212 in the second information processing system circuit 21 in S1033 before determining that the host unit 1 and the display screen 2 are connected through the connection line 3. The second feedback signal may be an MCU Ready signal, the third processor 212 initializes the backlight control circuit 213 and determines that the backlight control circuit 213 can normally operate at this time, and after the first electrical signal is normally received and the backlight module 22 is driven to light up, the third processor 212 may send the MCU Ready signal to the first processor 111 through the I2C connection line to indicate that the backlight control circuit 213 can normally operate. Then, when the first processor 111 receives the MCU Ready signal, it can determine that the connection line 3 between the host unit 1 and the display screen 2 is connected according to the second feedback signal, and can send the first electrical signal with larger voltage to the display screen 2 through the connection line 3.

Alternatively, the above S1032 and S1033 may be alternatively performed, or may be performed simultaneously, for example, after the first feedback signal and the second feedback signal are received simultaneously, it may be determined that the connection line 3 between the host unit 1 and the display screen 2 is connected. When receiving HILINK HPD with high level, HILINK HPD with low level but not receiving the first feedback signal, or HILINK HPD with low level but not receiving the second feedback signal, the first processor 111 determines that the host unit 1 and the display screen 2 are not connected through the connection line 3, which may cause problems such as disconnection of the connection line, unstable connection of the connection line, etc.

S104: the control power circuit sends a first electric signal to the backlight module through the connecting wire so as to supply power to the backlight module through the first electric signal.

Finally, after the first processor 111 determines that the host unit 1 and the display screen 2 are connected through the connection line 3 by the first feedback signal or the second feedback signal in S103, the power circuit 12 may be controlled to send the first electrical signal to the second information processing system circuit 21 on the side of the display screen 2 through the connection line 3, and the backlight control circuit 213 on the second information processing system circuit 21 may drive and light the backlight module 22 according to the first electrical signal after receiving the first electrical signal.

Alternatively, the first processor 111 may control the power circuit 12 to send the first electrical signal through the connection line 3 by sending a backlight control signal (SW signal) to the power circuit, and then, for the power circuit 12, after receiving the SW signal, the first electrical signal may start to be sent to the display screen 2 through the connection line 3

It is understood that when the first processor 111 does not determine through S103 that the host unit 1 is connected to the display screen 2 through the connection line 3, the power circuit 12 is not controlled to transmit the first electrical signal to the display screen 2 through the connection line 3.

In summary, in the control method of the display device provided in this embodiment, during the power-on process of the split type display device, the power circuit in the host unit first provides the second electrical signal with a smaller voltage to the display screen through the connection line, so as to supply power to the second processor and the third processor in the display screen; then, the first processor in the host unit needs to determine whether the host unit is connected to the display screen through the connection line, and after it is determined that the host unit is indeed connected to the display screen through the connection line, the first processor controls the power supply circuit to provide a first electrical signal with a relatively high voltage to the display screen through the connection line, so as to supply power to the backlight module in the display screen. Therefore, the display screen control method provided by this embodiment enables the power supply circuit of the display screen not to directly send the second electrical signal with a larger voltage to the display screen during the power-on process, but to send the first electrical signal with a lower voltage first and send the second electrical signal after determining that the connecting line is normally connected, thereby preventing the second electrical signal with a higher voltage transmitted in the connecting line from bringing losses to the display screen and the user under abnormal conditions such as disconnection of the connecting line, and further reducing the potential safety hazard of the split display device.

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

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A control method of a display device is applied to the display device and is characterized in that,

the display device includes:

the display screen comprises a host unit, a display screen which is designed separately from the host unit, and a connecting wire; the host unit is connected with the display screen through the connecting line;

the host unit includes: a power supply circuit and a first information handling system circuit, the first information handling system circuit comprising: a first processor;

the display screen includes: the second information processing system circuit, the backlight module and the display panel;

the power supply circuit is used for supplying power to the second information processing system circuit and the backlight module through the connecting line;

the display device control method includes:

the first processor receives starting indication information;

the first processor controls the power circuit to send a first electric signal to the second information processing system circuit through the connecting line so as to supply power to the second information processing system circuit;

the first processor receives a first feedback signal or a second feedback signal sent by the second information processing system circuit;

the first processor controls the power circuit to send a second electric signal to the backlight module through the connecting wire so as to supply power to the backlight module;

the voltage of the first electrical signal is less than the voltage of the second electrical signal.

2. The method of claim 1,

the second information handling system circuitry comprises: a resistance; the first end of the resistor is connected with the host unit through the connecting wire, and the second end of the resistor is grounded;

the first processor judges whether the host unit is connected with the display screen through the connecting line, and includes:

when a first feedback signal sent by the second information processing system circuit is received and the first end of the resistor is at a low level, the first processor determines that the host unit is connected with the display screen through the connecting line; after receiving the HDMI signal sent by the first information processing system circuit, the second information processing system circuit sends the first feedback signal to the first information processing system.

3. The method of claim 1,

the first processor judges whether the host unit is connected with the display screen through the connecting line, and comprises:

when a second feedback signal sent by the second information processing system circuit is received and the first end of the resistor is at a low level, the first processor determines that the host unit is connected with the display screen through the connecting line; and after the second information processing system circuit determines that the backlight module works normally, the second information processing system circuit sends the second feedback signal to the first information processing system.

4. The method of any of claims 1-3, wherein the first processor controls the power circuit to send a second electrical signal to the backlight module through the connection line to power the backlight module, comprising:

the first processor sends a backlight control signal to the power circuit, and controls the power circuit to send a second electric signal to the backlight module through the connecting line so as to supply power to the backlight module.

5. The method of any of claims 1-3, wherein the first processor controls the power circuit to send a first electrical signal to the second information handling system circuit to power the second information handling system circuit, comprising:

the first processor controls the power circuit to send a first electrical signal to the second information processing system circuit through the connection line by sending an STB signal to the power circuit to power the second information processing system circuit.

6. A display device, comprising:

the power supply circuit is used for supplying power to the information processing system circuit and is also used for supplying power to the second information processing system circuit and the backlight module through the connecting wire;

the first processor is used for receiving starting indication information; controlling the power supply circuit to send a first electric signal to the second information processing system circuit through the connecting line so as to supply power to the second information processing system circuit; receiving a first feedback signal or a second feedback signal sent by the second information processing system circuit; controlling the power supply circuit to send a second electric signal to the backlight module through the connecting line so as to supply power to the backlight module;

7. The display device according to claim 6,

the second information handling system circuitry comprises: a resistance; the first end of the resistor is connected with the host unit through the connecting wire, and the second end of the resistor is grounded; when the host unit is connected with the display screen through the connecting line, the first end of the resistor is at a low level, and when the host unit is not connected with the display screen through the connecting line, the first end of the resistor is at a high level;

the first processor is specifically configured to determine that the host unit is connected to the display screen through the connection line when a first feedback signal sent by the second information processing system circuit is received and the first end of the resistor is at a low level; after receiving the HDMI signal sent by the first information processing system circuit, the second information processing system circuit sends the first feedback signal to the first information processing system.

8. The display device according to claim 6,

the first processor is specifically configured to determine that the host unit is connected to the display screen through the connection line when a second feedback signal sent by the second information processing system circuit is received and the first end of the resistor is at a low level; and after the second information processing system circuit determines that the backlight module works normally, the second information processing system circuit sends the second feedback signal to the first information processing system.