A display device, a method for raising and lowering a screen, and peripheral devices.

Abstract

This application provides a display device, a screen raising / lowering method, and peripheral devices. The method includes: in response to a power-on command, entering a broadcast state and sending a first broadcast packet to a peripheral device; scanning for a second broadcast packet sent by the peripheral device, and in response to detecting the second broadcast packet, executing a power-on process; in response to a power-off command, generating a screen raising command and sending the screen raising command to the peripheral device; receiving a third broadcast packet from the peripheral device; and in response to the third broadcast packet, executing a power-off process. The method establishes a wireless communication connection with the peripheral device via broadcast packets. In response to a power-on command, it executes a power-on process upon receiving a notification to lower the screen; in response to a power-off command, it executes a power-off process upon receiving a notification to raise the screen. This avoids the time difference caused by manual power-on / off, thereby solving the problem of screen raising / lowering being out of sync with the power-on / off state when turning on or off a display device such as a laser TV.

Description

Technical Field

[0001] This application relates to the field of display device technology, and in particular to a display device, a method for raising and lowering a screen, and peripheral devices. Background Technology

[0002] Display devices can achieve two-way human-computer interaction, meeting diverse and personalized user needs. Taking laser TV as an example, laser TV is a television technology that uses a laser light source to display high-definition images. It uses lasers as the display light source and projects images onto a dedicated screen using front projection technology. Currently, laser TVs are gradually being widely used by users due to their advantages such as ultra-short throw projection, large screen size, vibrant colors, and high contrast.

[0003] To achieve the best viewing experience, laser TVs typically require a dedicated screen to ensure image clarity and brightness. Currently, most laser TVs on the market communicate with their peripheral devices (such as screen systems) via wired connections. For example, the screen system in the peripheral device connects to the laser TV system via USB or other bus interfaces. During laser TV startup, raising or lowering the screen requires manual operation from the user. For instance, lowering the screen when powering on and raising it when powering off are manual operations. Commands to raise or lower the screen are generated based on these user actions, controlling the screen system in the peripheral device to perform the corresponding actions.

[0004] While the above methods allow for screen control, manual operation by the user is required to trigger the screen's raising or lowering. In other words, turning the laser TV on or off does not automatically trigger the corresponding actions of the screen system; the screen cannot automatically lower when the TV is turned on or automatically rise when the TV is turned off. That is, currently, the screen's raising or lowering is not synchronized with the TV's on / off state. Summary of the Invention

[0005] Some embodiments of this application provide a display device, a method for raising and lowering a screen, and peripheral devices to solve the problem that the raising or lowering of the screen is not synchronized with the power-on or power-off state when a laser TV is turned on or off.

[0006] In a first aspect, some embodiments of this application provide a display device, including:

[0007] The monitor is configured to display the user interface;

[0008] A communication device configured to establish a communication connection with peripheral devices;

[0009] The controller is configured as follows:

[0010] In response to a power-on command, after the display device enters broadcast mode, a first broadcast packet is sent to the peripheral device. The first broadcast packet is used to cause the peripheral device to perform a screen-lowering operation and generate a second broadcast packet after scanning the first broadcast packet. The second broadcast packet is used to indicate that the peripheral device has received the first broadcast packet and has performed the screen-lowering operation.

[0011] Scan the second broadcast packet sent by the peripheral device, and in response to the detection of the second broadcast packet, execute the power-on process;

[0012] In response to a power-off command, a screen-raising command is generated and sent to the peripheral device, so that the peripheral device performs a screen-raising operation and generates a third broadcast packet after receiving the screen-raising command;

[0013] The device receives the third broadcast packet from the peripheral device and, in response to the third broadcast packet, executes a shutdown procedure.

[0014] The above technical solution has the following advantages or beneficial effects: The display device establishes a wireless communication connection with the peripheral device in the form of broadcast packets. In response to the power-on command, it executes the power-on process when it receives a notification to lower the screen. In response to the power-off command, it executes the power-off process when it receives a notification to raise the screen. This avoids the time difference caused by manual power-on and power-off, and thus solves the problem that the raising or lowering of the screen is not synchronized with the power-on or power-off state when the display device, such as a laser TV, is turned on or off.

[0015] In some embodiments, the controller is further configured to:

[0016] Turn on the Bluetooth module and set it to scanning mode; scan for Bluetooth broadcast packets of the peripheral device based on the Bluetooth module; in response to the detection of the Bluetooth broadcast packets, initiate a pairing connection with the peripheral device so that the display device and the peripheral device establish a communication connection based on the Bluetooth module.

[0017] The above technical solution has the following advantages or beneficial effects: the display device and peripheral device can transmit data and exchange commands through the Bluetooth wireless communication protocol, thereby improving the speed of interaction and the convenience of operation.

[0018] In some embodiments, after the controller executes the power-on process steps, it is further configured to:

[0019] After the display device loses power, it enters standby mode and powers on the Bluetooth module; it scans for the fourth broadcast packet of the peripheral device through the Bluetooth module; the fourth broadcast packet is used to characterize the disconnected connection between the display device and the peripheral device after the display device loses power; after scanning the fourth broadcast packet, it initiates a pairing connection with the peripheral device to restore the communication connection between the display device and the peripheral device.

[0020] The above technical solution has the following advantages or beneficial effects: the display device and peripheral devices can transmit data and exchange commands via the Bluetooth wireless communication protocol, thereby realizing the control and synchronous operation of the peripheral devices. Bluetooth enables automatic reconnection between the display device and peripheral devices after power failure; the user does not need to manually intervene, and the display device can automatically reconnect to the peripheral devices after power is restored, facilitating subsequent operations.

[0021] In some embodiments, after the controller initiates the pairing connection step with the peripheral device, it is further configured to:

[0022] After the display device and the peripheral device restore their communication connection, a secondary screen raising command is generated; the secondary screen raising command is sent to the peripheral device so that the peripheral device performs a screen raising operation upon receiving the secondary screen raising command.

[0023] The above technical solution has the following advantages or beneficial effects: the screen system will start and raise the screen according to the secondary screen raising command to solve the problem that the screen will continue to descend when the AC power fails. Moreover, this process does not require manual operation by the user, which can improve the interactivity between the display device and the peripheral device.

[0024] In some embodiments, after the controller sends the secondary screen raising command to the peripheral device, it is further configured to:

[0025] The peripheral device receives a fifth broadcast packet in response to the secondary screen raising command; the fifth broadcast packet indicates that the peripheral device has completed the screen raising process according to the secondary screen raising command.

[0026] In response to the fifth broadcast packet, a disconnect command is generated;

[0027] The disconnect command is sent to the peripheral device so that the peripheral device disconnects its communication connection with the display device upon receiving the disconnect command.

[0028] The above technical solution has the following advantages or beneficial effects: After receiving the disconnect command, the peripheral device will perform the disconnect operation according to the content of the command. By terminating the Bluetooth communication connection with the display device, unnecessary communication can be avoided.

[0029] In some embodiments, before the controller sends the first broadcast packet to the peripheral device, it is further configured to:

[0030] The system identifies the power-on method, which includes at least AC power-on, DC power-on, and suspended state power-on. When the power-on method is AC power-on or DC power-on, a power-on process is triggered by a preset boot program, and after the power-on process is triggered, a step of sending a first broadcast packet to the peripheral device is executed. When the power-on method is suspended state power-on, in response to the Bluetooth module being turned on, a step of sending a first broadcast packet to the peripheral device is executed.

[0031] The above technical solution has the following advantages or beneficial effects: By identifying different power-on methods, the display device can adjust the power-on process according to different power states or previous usage states, and then trigger the screen-down operation of peripheral devices based on different power-on processes, thereby improving the communication efficiency between the display device and peripheral devices.

[0032] In some embodiments, before the controller generates the screen raising command, it is further configured to:

[0033] The system identifies the shutdown mode, which includes at least AC shutdown, DC shutdown, and suspended shutdown. When the shutdown mode is AC shutdown, a shutdown process is triggered by a preset boot program, and after the shutdown process is triggered, a step of generating a screen-raising command is executed. When the shutdown mode is DC shutdown or suspended shutdown, in response to the display device being woken up, a step of generating a screen-raising command is executed and the screen-raising command is sent to the peripheral device.

[0034] The above technical solution has the following advantages or beneficial effects: by recognizing different shutdown methods, the display device can adjust the shutdown process according to different power states or previous usage states, and then trigger the screen lifting operation of the peripheral device based on the different shutdown processes, thereby improving the communication efficiency between the display device and the peripheral device.

[0035] Secondly, some embodiments of this application provide a method for raising and lowering a screen, which can be applied to the display device of the first aspect, wherein the display device includes a display, a communication device, and a controller, and the method includes:

[0036] In response to a power-on command, after the display device enters broadcast mode, a first broadcast packet is sent to the peripheral device. The first broadcast packet is used to cause the peripheral device to perform a screen-lowering operation and generate a second broadcast packet after scanning the first broadcast packet. The second broadcast packet is used to indicate that the peripheral device has received the first broadcast packet and has performed the screen-lowering operation.

[0037] Scan the second broadcast packet sent by the peripheral device, and in response to the detection of the second broadcast packet, execute the power-on process;

[0038] In response to a power-off command, a screen-raising command is generated and sent to the peripheral device, so that the peripheral device performs a screen-raising operation and generates a third broadcast packet after receiving the screen-raising command;

[0039] The device receives the third broadcast packet from the peripheral device and, in response to the third broadcast packet, executes a shutdown procedure.

[0040] The above technical solution has the following advantages or beneficial effects: The method establishes a wireless communication connection with peripheral devices in the form of broadcast packets. In response to the power-on command, it executes the power-on process when it receives a notification to lower the screen. In response to the power-off command, it executes the power-off process when it receives a notification to raise the screen. This avoids the time difference caused by manual power-on and power-off, thereby solving the problem that the raising or lowering of the screen is not synchronized with the power-on or power-off state when turning on or off display devices such as laser TVs.

[0041] Thirdly, some embodiments of this application provide a peripheral device, including:

[0042] The communication unit is configured to establish a communication connection with the display device;

[0043] The control unit is configured as follows:

[0044] The system scans for a first broadcast packet sent by the display device, and after detecting the first broadcast packet, generates a screen-down command and a second broadcast packet, and performs a screen-down operation according to the screen-down command; the second broadcast packet is used to indicate that the peripheral device has received the first broadcast packet and has executed the screen-down command.

[0045] The second broadcast packet is sent to the display device so that the display device executes the power-on process after scanning the second broadcast packet;

[0046] Receive the screen raising command sent by the display device, respond to the screen raising command, execute the screen raising process, and generate a third broadcast packet;

[0047] The third broadcast packet is sent to the display device so that the display device executes a shutdown procedure upon receiving the third broadcast packet.

[0048] The above technical solution has the following advantages or beneficial effects: After receiving the screen raising or lowering command, the peripheral device can send feedback to the display device via broadcast packets, so that the screen system in the peripheral device can automatically synchronize with the power on / off state of the display device, thereby solving the problem that the screen raising or lowering is not synchronized with the power on / off state when the display device, such as a laser TV, is turned on or off.

[0049] Fourthly, some embodiments of this application provide a method for raising and lowering a screen, which can be applied to peripheral devices in the third aspect, including:

[0050] The system scans for a first broadcast packet sent by the display device, and after detecting the first broadcast packet, performs a screen-lowering operation and generates a second broadcast packet; the second broadcast packet is used to indicate that the peripheral device has received the first broadcast packet and has performed a screen-lowering operation.

[0051] The second broadcast packet is sent to the display device so that the display device executes the power-on process after scanning the second broadcast packet;

[0052] Receive the screen raising command sent by the display device, respond to the screen raising command, execute the screen raising process, and generate a third broadcast packet;

[0053] The third broadcast packet is sent to the display device so that the display device executes a shutdown procedure upon receiving the third broadcast packet.

[0054] The above technical solution has the following advantages or beneficial effects: After receiving the screen raising or lowering command, the method can send feedback to the display device via broadcast packets, so that the screen system in the peripheral device can automatically synchronize with the power on / off state of the display device, thereby solving the problem that the screen raising or lowering is not synchronized with the power on / off state when the display device, such as a laser TV, is turned on or off.

[0055] As can be seen from the above technical solutions, some embodiments of this application provide a display device, a screen raising / lowering method, and peripheral devices. The method includes: in response to a power-on command, after entering a broadcast state, sending a first broadcast packet to a peripheral device; scanning for a second broadcast packet sent by the peripheral device, and in response to detecting the second broadcast packet, executing a power-on process; in response to a power-off command, generating a screen raising command and sending the screen raising command to the peripheral device, receiving a third broadcast packet from the peripheral device, and in response to the third broadcast packet, executing a power-off process. The method establishes a wireless communication connection with the peripheral device through broadcast packets. In response to a power-on command, it executes a power-on process upon receiving a notification to lower the screen; in response to a power-off command, it executes a power-off process upon receiving a notification to raise the screen. This avoids the time difference caused by manual power-on / off operations, thereby solving the problem of screen raising or lowering being out of sync with the power-on / off state when turning on or off a display device such as a laser TV. Attached Figure Description

[0056] To more clearly illustrate the technical solutions in some embodiments of this application or in the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0057] Figure 1 This is a schematic diagram illustrating an operational scenario between a display device and a control device provided in some embodiments of this application;

[0058] Figure 2 This is a schematic diagram of the hardware configuration of a display device provided in some embodiments of this application;

[0059] Figure 3 This is a schematic diagram of the software configuration of a display device provided in some embodiments of this application;

[0060] Figure 4 These are schematic diagrams illustrating laser TV usage scenarios provided in some embodiments of this application;

[0061] Figure 5 A schematic flowchart illustrating a method for raising and lowering a screen using a display device, provided in some embodiments of this application.

[0062] Figure 6 A timing diagram illustrating the method for raising and lowering a screen using a display device and peripheral devices, provided in some embodiments of this application;

[0063] Figure 7 A timing diagram illustrating the power-off and screen-raising operation of a display device provided in some embodiments of this application;

[0064] Figure 8A schematic diagram illustrating the processing flow of a display device after an AC power failure, provided in some embodiments of this application;

[0065] Figure 9 A schematic diagram illustrating the process of disconnecting a display device from peripheral devices provided in some embodiments of this application;

[0066] Figure 10 This is a schematic diagram illustrating a method for raising and lowering a screen using a peripheral device, provided in some embodiments of this application. Detailed Implementation

[0067] The embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described below do not represent all embodiments consistent with this application. They are merely examples of systems and methods consistent with some aspects of this application as detailed in the claims.

[0068] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0069] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0070] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0071] The term "module" refers to any known or subsequently developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and / or software code that is capable of performing the functions associated with that element.

[0072] In this embodiment, the display device 200 generally refers to a device with screen display and data processing capabilities. For example, the display device 200 includes, but is not limited to, smart TVs, mobile terminals, computers, monitors, advertising screens, wearable devices, virtual reality devices, augmented reality devices, etc.

[0073] Figure 1 This is a schematic diagram illustrating an operational scenario between a display device and a control device provided in some embodiments of this application. For example... Figure 1 As shown, a user can operate the display device 200 via touch operation, a mobile terminal 300, and a control device 100. The control device 100 receives user input commands and converts them into control commands that the display device 200 can recognize and respond to. For example, the control device 100 can be a remote control, a stylus, a gamepad, etc.

[0074] The mobile terminal 300 can function as a control device for human-computer interaction between the user and the display device 200. It can also function as a communication device for establishing a communication connection with the display device 200 and exchanging data. In some embodiments, the mobile terminal 300 can have software applications installed on it and communicate with the display device 200 via network communication protocols to achieve one-to-one control and data communication. Furthermore, it can transmit audio and video content displayed on the mobile terminal 300 to the display device 200 for synchronized display.

[0075] In some embodiments, the mobile terminal 300 or other electronic devices may also simulate the functions of the control device 100 by running an application that controls the display device 200.

[0076] like Figure 1 The diagram also shows that the display device 200 communicates with the server 400 via various communication methods. This allows the display device 200 to communicate via a local area network (LAN), a wireless local area network (WLAN), and other networks.

[0077] Display device 200 can provide broadcast television reception function, and can also be equipped with intelligent network television function that provides computer support, including but not limited to network television, smart television, Internet Protocol television (IPTV), etc.

[0078] Figure 2 Provided for some embodiments of this application Figure 1 Hardware configuration block diagram of display device 200.

[0079] In some embodiments, the display device 200 may include at least one of a tuner 210, a communication device 220, a detector 230, a device interface 240, a controller 250, a display 260, an audio output device 270, a memory, a power supply, and a user input interface.

[0080] In some embodiments, detector 230 is used to acquire signals from the external environment or to interact with the outside world. For example, detector 230 includes a light receiver, a sensor for acquiring ambient light intensity; or, detector 230 includes an image acquisition device, such as a camera, which can be used to acquire external environmental scenes, user attributes, or user interaction gestures; or, detector 230 includes a sound acquisition device, such as a microphone, for receiving external sounds.

[0081] In some embodiments, the display 260 includes display function components for presenting images and driving components for driving image display. The display 260 is used to receive and display image signals output from the controller 250. For example, the display 260 can be used to display video content, image content, menu control interface components, and user control UI interfaces, etc.

[0082] In some embodiments, the communication device 220 is a component used to communicate with external devices or the server 400 according to various communication protocol types. The display device 200 may have multiple communication devices 220 depending on the supported communication methods. For example, when the display device 200 supports wireless network communication, it may have a communication device 220 with WiFi functionality. When the display device 200 supports Bluetooth connectivity, it needs to have a communication device 220 with Bluetooth functionality.

[0083] The communication device 220 enables the display device 200 to communicate with external devices or the server 400 via wireless or wired connections. Wired connections utilize data cables, interfaces, or other components to connect the display device 200 to external devices. Wireless connections utilize wireless signals or wireless networks. The display device 200 can directly establish a connection with external devices or indirectly through gateways, routers, or other connection devices.

[0084] In some embodiments, the controller 250 may include at least one of a central processing unit, a video processor, an audio processor, a graphics processor, and a power processor, and a first to an nth interface for input / output. The controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory. The controller 250 controls the overall operation of the display device 200.

[0085] In some embodiments, the controller 250 and the tuner 210 may be located in different separate devices, that is, the tuner 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box.

[0086] In some embodiments, a user can input user commands through a graphical user interface (GUI) displayed on a display 260, and the user input interface receives user input commands through the graphical user interface (GUI).

[0087] In some embodiments, the audio output device 270 can be a built-in speaker of the display device 200 or an external audio output device connected to the display device 200. For the external audio output device connected to the display device 200, the display device 200 may also be provided with an external audio output terminal, through which the audio output device can be connected to the display device 200 to output sound from the display device 200.

[0088] In some embodiments, the user input interface 280 can be used to receive instructions from user input.

[0089] To enable user interaction, in some embodiments, the display device 200 may run an operating system. The operating system is a computer program used to manage and control the hardware and software resources of the display device 200. The operating system can control the display device to provide a user interface; for example, the operating system can directly control the display device to provide a user interface, or it can provide a user interface by running an application. The operating system also allows users to interact with the display device 200.

[0090] It should be noted that the operating system can be a native operating system based on a specific operating platform, a third-party operating system that is deeply customized based on a specific operating platform, or an independent operating system specifically developed for display devices.

[0091] An operating system can be divided into different modules or levels based on the functions it implements, for example... Figure 3 As shown, in some embodiments, the system is divided into four layers, from top to bottom: the Applications layer (referred to as the "Application Layer"), the Application Framework layer (referred to as the "Framework Layer"), the System Library layer, and the Kernel layer.

[0092] In some embodiments, the application layer provides services and interfaces for applications, enabling the display device 200 to run applications and interact with the user based on the applications. The application layer may contain at least one application, which may be a built-in Windows program, system settings program, or clock program of the operating system; or it may be an application developed by a third-party developer. In specific implementations, the application packages in the application layer are not limited to the examples above.

[0093] The framework layer provides application programming interfaces (APIs) and a programming framework for applications. The application framework layer includes predefined functions. It acts as a central processing unit, determining the actions taken by applications within the application layer. Through the API, applications can access system resources and obtain system services during execution.

[0094] like Figure 3 As shown, the application framework layer in this embodiment includes a view system, managers, and content providers. The view system designs and implements the application's interface and interactions, and includes lists, grids, text boxes, and buttons. The managers include at least one of the following modules: an activity manager for interacting with all running activities in the system; a location manager for providing system services or applications with access to system location services; a package manager for retrieving various information related to application packages currently installed on the device; a notification manager for controlling the display and clearing of notification messages; and a window manager for managing icons, windows, toolbars, wallpapers, and desktop widgets on the user interface.

[0095] In some embodiments, the Activity Manager manages the lifecycle of individual applications and common navigation and back functions, such as controlling application exit, opening, and back actions. The Window Manager manages all window programs, such as obtaining the screen size, determining if a status bar is present, locking the screen, capturing the screen, and controlling changes to the display window, such as shrinking the display window, shaking the display, or distorting the display.

[0096] In some embodiments, the system runtime library layer can provide support for the framework layer. When the framework layer is used, the operating system runs the instruction library contained in the system runtime library layer, such as the C / C++ instruction library, to implement the functions to be performed by the framework layer.

[0097] In some embodiments, the kernel layer is a functional layer situated between the hardware and software of the display device 200. The kernel layer can implement functions such as hardware abstraction, multitasking, and memory management. For example, ... Figure 3As shown, hardware drivers can be configured in the kernel layer. The drivers included in the kernel layer can be at least one of the following: audio driver, display driver, Bluetooth driver, camera driver, WIFI driver, USB driver, HDMI driver, sensor driver (such as fingerprint sensor, temperature sensor, pressure sensor, etc.), and power driver, etc.

[0098] It should be noted that the above examples are merely a simple division of operating system functions and do not limit the specific form of the operating system of the display device 200 in this application embodiment. Depending on the function of the display device, the type of operating system, and other factors, the number of levels and the specific level type of the operating system may be expressed in other forms.

[0099] The above embodiments illustrate the hardware / software architecture and functional implementation of a display device 200. Based on the above display device 200, two-way human-computer interaction can be realized to meet the diverse and personalized needs of users. Taking laser TV as an example, laser TV is a television technology that uses a laser light source to display high-definition images. Laser TV uses laser as the display light source and projects images onto a dedicated screen through front projection technology. Currently, laser TVs are gradually being widely used by users due to their advantages such as ultra-short throw projection, large screen size, vivid colors, and high contrast.

[0100] To achieve the best viewing experience, laser TVs typically require the use of a dedicated screen to ensure the clarity and brightness of the projected image. Figure 4 These are schematic diagrams illustrating laser TV usage scenarios provided in some embodiments of this application, such as... Figure 4 As shown, in some embodiments, the laser TV may include the laser TV 200 itself and a screen 501. The screen 501 can be controlled by an external device 500, which may include a screen system for controlling the raising or lowering of the screen 501. The screen 501 can be fixed in a first position (e.g., on a wall), and the laser TV 200 can be placed in a second position (e.g., on a TV stand), so that the image projected by the laser TV 200 matches the screen 501. The screen 501 can enhance the image quality of the laser TV and improve the user's viewing experience.

[0101] Currently, most laser TVs on the market communicate with their peripheral devices 500 (such as screen systems) via wired connections. For example, the screen system in peripheral device 500 connects to the laser TV system via USB or other bus interfaces. During the laser TV startup process, if the user wants the screen system to raise or lower, manual operation is required. For instance, when the TV is turned on, the user needs to manually lower the screen; when the TV is turned off, the user needs to manually raise the screen. Commands to raise or lower the screen are generated based on the user's manual operation, thereby controlling the screen system in peripheral device 500 to complete the corresponding actions.

[0102] While the above method allows control of the screen 501, it requires manual user intervention to trigger the screen raising or lowering operation. In other words, when the user turns the laser TV on or off, the corresponding actions of the screen system are not automatically triggered; that is, the function of automatically lowering the screen when the TV is turned on and automatically raising it when the TV is turned off cannot be achieved. For example, based on the wired connection method described above, the screen system requires manual operation by the user, resulting in a poor user experience. Furthermore, there may be a time lag in the user's operation; that is, currently, when the laser TV 200 is turned on or off, the raising or lowering of the screen 501 is not synchronized with its on / off state.

[0103] To address the issue that the raising or lowering of the screen 501 is not synchronized with the power-on / off state when the laser TV 200 is turned on or off, some embodiments of this application provide a display device 200, which includes a display 260, a communication device 220, and a controller 250. The display 260 is configured to display a user interface, the communication device 220 is configured to establish a communication connection with a peripheral device 500, and the controller 250, by running an application program, causes the display device 200 to execute the screen raising and lowering method.

[0104] To facilitate understanding of the technical solutions in some embodiments of this application, the steps are described in detail below with reference to some specific embodiments and accompanying drawings. Figure 5 This is a schematic flowchart illustrating the method for raising and lowering a screen using a display device, as provided in some embodiments of this application. Figure 5 As shown, in some embodiments, the display device 200 may include the following steps when performing the screen raising and lowering method:

[0105] Step S1: In response to the power-on command, after the display device 200 enters the broadcast state, it sends the first broadcast packet to the peripheral device 500.

[0106] In some embodiments, before sending the first broadcast packet to the peripheral device 500, the display device 200 may first turn on the Bluetooth module and set it to scanning mode. Then, based on the Bluetooth module, it scans for Bluetooth broadcast packets from the peripheral device 500. In response to detecting a Bluetooth broadcast packet, it initiates a pairing connection with the peripheral device 500, thereby establishing a communication connection between the display device 200 and the peripheral device 500 based on the Bluetooth module. After establishing the communication connection, they can transmit commands and broadcast packets to each other.

[0107] In some embodiments, in response to a user pressing the power button on the display device 200 or sending a power-on signal via a remote control, the display device 200 can generate a power-on command. The display device 200 can detect the validity of the power-on command. After confirming the validity of the power-on command, it can enter a predefined broadcast state, preparing to send signals externally. In the broadcast state, the display device 200 can generate a first broadcast packet via its built-in wireless communication module (such as Bluetooth, Wi-Fi Direct, etc.). This broadcast packet can contain information such as a specific identifier and power-on status, and the display device 200 sends the broadcast packet to the peripheral device 500.

[0108] Figure 6 This application provides timing diagrams illustrating the screen raising and lowering method executed by the display device and peripheral devices in some embodiments, such as... Figure 6 As shown, in some embodiments, the display device 200 is still a laser TV and the peripheral device 500 is a screen system, and the information interaction between the laser TV and the screen system can be as follows: After the laser TV enters the broadcast state, it can send a first broadcast packet to the screen system. The broadcast packet can be a packet type defined by the Bluetooth protocol. The broadcast packet can be customized according to the Bluetooth protocol rules so that the scanner can identify the broadcast packet and learn some relevant information about the sender through the broadcast packet.

[0109] In some embodiments, the first broadcast packet is used to cause the peripheral device 500 to perform a screen-lowering operation and generate a second broadcast packet after scanning the first broadcast packet. The second broadcast packet indicates that the peripheral device 500 has received the first broadcast packet and performed the screen-lowering operation. For the screen system at the peripheral device 500 end, it can enter a scanning state after AC power-on, waiting to receive and scan the broadcast packets sent by the laser TV. That is, the screen system will be in a continuous listening state to capture signals from the laser TV. After scanning the first broadcast packet, the screen system can parse the information in the first broadcast packet to determine if it is a power-on signal from a paired or authorized device. Then, the screen system can generate a screen-lowering command according to preset logic and control it to perform the screen-lowering operation. Simultaneously, the screen system can generate and send a second broadcast packet to the laser TV in response. The second broadcast packet not only confirms that the peripheral device 500 has received the first broadcast packet but also contains status information indicating that the screen-lowering operation has started. In this way, the laser TV and the screen no longer need to be wired for information exchange. Instead, they communicate instantly by transmitting broadcast packets, ensuring the synchronization of the screen-down state between the display device 200 and the peripheral device 500 during the power-on process. After step S1 is completed, step S2 can be included.

[0110] Step S2: Display device 200 scans for the second broadcast packet sent by peripheral device 500, and in response to the detection of the second broadcast packet, executes the power-on process.

[0111] In some embodiments, the display device 200 can continuously listen for broadcast packets from the peripheral device 500, that is, scan for second broadcast packets sent by the peripheral device 500. After detecting the second broadcast packet, the display device 200 can verify its integrity and source to confirm that the screen lowering operation has been initiated on the peripheral device 500. At this time, the display device 200 can exit the standby state and formally enter the power-on process, including loading the operating system, initializing hardware components, and displaying the power-on screen. In this way, the display device 200 can execute the power-on process simultaneously when it receives the notification of screen lowering. By using broadcast packets, the time difference caused by the user's manual power-on operation can be avoided, thereby ensuring that the power-on of the display device 200 is synchronized with the screen lowering in the peripheral device 500. After step S2 is completed, step S3 can be included.

[0112] Step S3: In response to the power-off command, the display device 200 generates a screen-raising command and sends the screen-raising command to the peripheral device 500, so that the peripheral device 500 performs the screen-raising operation and generates a third broadcast packet after receiving the screen-raising command.

[0113] Continue to combine Figure 6When a user issues a power-off command through the user interface of display device 200 or a remote control, such as in response to receiving a power button press, display device 200 can generate a screen-raising command and send it to peripheral device 500. For example, it can be sent to peripheral device 500 via a wireless communication module to instruct peripheral device 500 to perform a screen-raising operation. After peripheral device 500 performs the screen-raising operation, it can generate a third broadcast packet and send it to display device 200 to notify display device 200 that the screen system has performed a screen-raising operation. After step S3 is completed, step S4 can be executed.

[0114] Step S4: The display device 200 receives the third broadcast packet from the peripheral device 500 and, in response to the third broadcast packet, executes the shutdown procedure.

[0115] In some embodiments, after receiving a screen-raising command, the peripheral device 500 performs a screen-raising operation and sends a third broadcast packet to the display device 200 to notify the display device 200 that the screen system has executed the screen-raising process. Upon receiving the third broadcast packet, the display device 200 can then execute a shutdown process, including saving current settings, turning off unnecessary power, and turning off the screen. In this way, the display device 200 can execute the shutdown process simultaneously with receiving the screen-raising notification. Using a broadcast packet avoids the time difference caused by manual shutdown by the user, thus ensuring that the shutdown of the display device 200 is synchronized with the screen-raising in the peripheral device 500.

[0116] As can be seen from the above technical solutions, the above embodiments provide a display device 200. In response to a power-on command, after the display device enters a broadcast state, the display device 200 sends a first broadcast packet to a peripheral device 500, so that the peripheral device 500 performs a screen-down operation and generates a second broadcast packet after scanning the first broadcast packet. The second broadcast packet is used to indicate that the peripheral device 500 has received the first broadcast packet and has executed the screen-down command. Then, the device scans for the second broadcast packet sent by the peripheral device 500, and in response to scanning the second broadcast packet, executes a power-on process. In response to a power-off command, a screen-up command is generated and sent to the peripheral device 500, so that the peripheral device 500 performs a screen-up operation and generates a third broadcast packet after receiving the screen-up command. The device receives the third broadcast packet fed back by the peripheral device 500, and in response to the third broadcast packet, executes a power-off process. The display device 200 establishes a wireless communication connection with the peripheral device 500 via broadcast packets. In response to a power-on command, the display device 200 can simultaneously execute the power-on process when it receives a notification to lower the screen, and in response to a power-off command, it can simultaneously execute the power-off process when it receives a notification to raise the screen. This avoids the time difference caused by the user's manual power-on or power-off operation when communicating via wired means. It also ensures that the screen system in the peripheral device 500 automatically synchronizes with the power-on / off state of the display device 200, thereby solving the problem of the screen raising or lowering being out of sync with the power-on / off state when the display device 200, such as a laser TV, is turned on or off.

[0117] In some embodiments, before the display device 200 sends the first broadcast packet to the peripheral device 500, it can identify the power-on mode, which includes at least AC power-on mode, DC power-on mode, and suspended state power-on mode. When the power-on mode is AC power-on mode or DC power-on mode, a power-on process is triggered by a preset boot program, and after the power-on process is triggered, the step of sending the first broadcast packet to the peripheral device 500 is executed. When the power-on mode is suspended state power-on mode, the step of sending the first broadcast packet to the peripheral device 500 is executed in response to the Bluetooth module being turned on.

[0118] For example, the power-on methods of the display device 200 may include AC power-on, DC power-on, and Suspend To Ram (STR) power-on, each with different characteristics. For instance, AC power-on involves a two-stage standby process: after the system is powered on, the Bluetooth module is powered on first, and then the Bluetooth chip firmware is loaded. When powered on by the remote control, the TV powers on and enters the Uboot stage for program booting, setting up the Bluetooth chip and sending broadcast packets. The Uboot stage is a boot program that must be executed during AC / DC power-on or power-off. In the DC power-on mode, the Bluetooth module does not lose power while the TV is in standby mode, so this process does not require reloading the Bluetooth firmware. Once the display device 200, such as a laser TV, is woken up by the remote control, the process is the same as the AC power-on mode. For the STR power-on mode, the Bluetooth module does not lose power while the TV is in standby mode, so this process does not require reloading the Bluetooth firmware. When a laser TV is woken up by the remote control, unlike the AC / DC power-on process, the Uboot boot program loading process is not required.

[0119] Therefore, the difference between STR power-on and AC / DC power-on scenarios lies in the timing of broadcast packets. AC / DC power-on sends broadcast packets during the U-boot boot process, while STR power-on does not involve the U-boot stage. After STR Bluetooth is enabled, broadcast packets can be sent for a period of time to wake up the screen system and perform the screen lowering operation. In this way, by recognizing different power-on methods, the display device 200 can adjust its power-on process according to different power states or previous usage states, and then trigger the screen lowering operation of the peripheral device 500 based on the different power-on processes, improving the communication efficiency between the display device 200 and the peripheral device 500.

[0120] In some embodiments, before generating a screen-raising command, the display device 200 can identify the shutdown mode, which includes at least AC shutdown, DC shutdown, and suspended state shutdown. When the shutdown mode is AC shutdown, a shutdown process is triggered by a preset boot program, and after the shutdown process is triggered, a step of generating a screen-raising command is executed. When the shutdown mode is DC shutdown or suspended state shutdown, in response to the display device 200 being woken up, a step of generating a screen-raising command is executed, and the screen-raising command is sent to the peripheral device 500. That is, AC shutdown requires a U-boot boot program, while DC shutdown and STR shutdown scenarios are the same and do not require a U-boot boot program. In this way, by identifying different shutdown modes, the display device 200 can adjust the shutdown process according to different power states or previous usage states, and then trigger the screen-raising operation of the peripheral device 500 based on different shutdown processes, thereby improving the communication efficiency between the display device 200 and the peripheral device 500.

[0121] In some embodiments, the display device 200 can correspond to different states at different stages, such as standby, initiating, advetising, scanning, and connection. Each state can correspond to a different execution state. For example, in standby, the display device 200 neither sends nor receives broadcast packets; in initiating, the display device 200 can respond to broadcast packets from other devices and request connections; in broadcasting, the display device 200 can transmit broadcast packets and process broadcast packets sent by other devices such as peripheral devices 500; in connection, the display device 200 can establish a communication connection with another device; and in scanning, the display device 200 can scan broadcast packets sent in broadcasting mode, i.e., listen for broadcast packets from other devices. For example, when the laser TV is in broadcasting mode, it can send broadcast packets to the screen system; when the screen system is in scanning mode, it can scan the broadcast packets sent by the laser TV.

[0122] In some embodiments, taking the interaction between a laser TV and a screen system as an example, the TV system needs to be started before executing the operation corresponding to the power-off command. During the system startup process, a connection needs to be established between the laser TV and the screen system. For example, a GATT connection can be established. Afterward, the laser TV can send a screen-raising command to the screen system based on the connection to raise the screen.

[0123] For example, Figure 7 This application provides timing diagrams illustrating the power-off and screen-raising operations of display devices according to some embodiments, such as... Figure 7As shown, in some embodiments, the laser TV and the screen system can establish a communication connection in the following manner. Specifically, the laser TV can first turn on Bluetooth and set it to scanning mode, enabling it to search for and discover surrounding Bluetooth devices, preparing for subsequent pairing. Simultaneously, the Bluetooth in the peripheral device 500 is set to broadcast mode. When the laser TV's Bluetooth module is in scanning mode, the laser TV can listen for Bluetooth broadcast packets from the screen system. After detecting a Bluetooth broadcast packet in the peripheral device 500, the laser TV can initiate a pairing connection request to the peripheral device 500, such as a GATT connection request. After successful pairing, a communication connection based on the Bluetooth module is established between the display device 200 and the peripheral device 500 (e.g., a GATT connection). In this way, the display device 200 and the peripheral device 500 can transmit data and exchange commands via the Bluetooth wireless communication protocol. For example, it can execute power-off commands during the standby phase. Users no longer need to use a wired connection to control the peripheral device 500; instead, they can automatically identify and control it via Bluetooth, thereby improving the speed of interaction and ease of operation.

[0124] In some embodiments, during the startup of the laser TV, the screen in the peripheral device 500 descends accordingly. During the descent, the laser TV may experience an abnormal power outage, specifically an AC power failure. In this scenario, after the laser TV experiences an abnormal power outage, since the peripheral device 500 is independent of the laser TV, the screen continues to descend, not rise. To address the AC power failure, the screen system needs to change from a descending to a rising state. Therefore, the display device 200 can enter a standby state after a power outage and power on the Bluetooth module. Then, it scans for the fourth broadcast packet from the peripheral device 500 via the Bluetooth module. The fourth broadcast packet indicates the disconnection between the display device 200 and the peripheral device 500 after the display device 200 loses power. Upon detecting the fourth broadcast packet, it initiates a pairing connection with the peripheral device 500 to restore communication between the display device 200 and the peripheral device 500.

[0125] For example, Figure 8 This is a schematic diagram illustrating the processing flow of a display device after an AC power failure, as provided in some embodiments of this application. Figure 8As shown, when the display device 200 experiences a power outage, the laser TV and the screen system are disconnected. At this time, the laser TV can enter a standby state, which can be a low-power mode. For example, in this state, the current device state and data can be saved so that it can quickly restore to the state before the power outage when power is restored. In standby mode, the laser TV can power on the Bluetooth module, so that even when the main power is lost, the Bluetooth module can still work, thus maintaining communication with the peripheral device 500. Simultaneously, after the screen system abnormally disconnects from the laser TV during its descent, it continues to enter broadcast mode. After the Bluetooth module is powered on, the display device 200 uses it to scan the fourth broadcast packet of the peripheral device 500. By scanning the fourth broadcast packet, the display device 200 can detect the presence of the peripheral device 500 and understand the current disconnected state. In the disconnected state, since the laser TV and the screen system are independent, even if they are disconnected, the screen may still be in the descent state. For example, the screen can descend to the bottom, or the broadcast package from the laser TV can contain information about the screen's descent progress, and the screen can execute the descent process based on the descent progress information according to preset descent rules.

[0126] After detecting the fourth broadcast packet, the display device 200 can initiate a pairing connection request to the peripheral device 500 to re-establish the communication connection between them. Upon successful pairing, the communication connection between the display device 200 and the peripheral device 500 is restored. They can then transmit data and exchange commands via the Bluetooth wireless communication protocol, thereby enabling control and synchronized operation of the peripheral device 500. Bluetooth allows for automatic reconnection between the display device 200 and the peripheral device 500 after power loss. No manual intervention is required from the user; the display device 200 will automatically reconnect to the peripheral device 500 after power is restored, facilitating subsequent operations.

[0127] In some embodiments, after the display device 200 initiates a pairing connection with the peripheral device 500, the following process can also be executed: After the display device 200 and the peripheral device 500 restore their communication connection, a secondary screen-raising command is generated; the secondary screen-raising command is sent to the peripheral device 500 so that the peripheral device 500 performs a screen-raising operation upon receiving the secondary screen-raising command.

[0128] For example, continue to combine Figure 8After the communication connection is restored, the display device 200 can generate a secondary screen-raising command, which instructs the peripheral device 500 to perform a screen-raising operation. The secondary screen-raising command is then sent to the peripheral device 500. Upon receiving the secondary screen-raising command, the peripheral device 500 can perform the screen-raising operation according to the command's content. In this way, the screen system will start and raise the screen according to the secondary screen-raising command, solving the problem of the screen continuing to descend during an AC power outage. Furthermore, this process does not require manual user operation, improving the interactivity between the display device 200 and the peripheral device 500.

[0129] In some embodiments, after the display device 200 sends the secondary screen-raising command to the peripheral device 500, it can receive a fifth broadcast packet from the peripheral device 500 in response to the secondary screen-raising command. The fifth broadcast packet indicates that the peripheral device 500 has completed the screen-raising process according to the secondary screen-raising command. In response to the fifth broadcast packet, the peripheral device 200 generates a disconnect command and sends the disconnect command to the peripheral device 500, so that the peripheral device 500 disconnects the communication connection with the display device 200 after receiving the disconnect command.

[0130] For example, Figure 9 This is a schematic diagram illustrating the process of disconnecting the display device from peripheral devices provided in some embodiments of this application, such as... Figure 9 As shown, in the event of an AC power failure, after the screen system completes the screen raising operation, it can confirm the completion of the operation via Bluetooth communication and disconnect from the peripheral device 500. Specifically, the display device 200 can receive a fifth broadcast packet from the peripheral device 500. This broadcast packet can be sent by the peripheral device 500 after completing the screen raising operation, indicating that the screen raising process has been completed. By parsing the fifth broadcast packet, the display device 200 can confirm that the peripheral device 500 has completed the screen raising operation according to the second screen raising instruction. After confirming the completion of the screen raising, the display device 200 can generate a disconnect instruction, which instructs the peripheral device 500 to disconnect from the display device 200. Upon receiving the disconnect instruction, the peripheral device 500 will execute the disconnect operation according to the content of the instruction. By terminating the Bluetooth communication connection with the display device 200, unnecessary communication can be avoided.

[0131] In some embodiments, the Bluetooth module can be turned on and off according to actual needs. For example, in response to a power-on command, the Bluetooth connection can be disconnected after the screen is lowered, meaning the Bluetooth module will be disconnected after the screen is lowered. It can then be turned on again when a power-off command is received to avoid unnecessary communication.

[0132] This application also provides a method for raising and lowering a screen in some embodiments. The method can be applied to the display device 200 in the above embodiments, and the method may include the following:

[0133] In response to the power-on command, after the display device 200 enters the broadcast state, it sends a first broadcast packet to the peripheral device 500, so that the peripheral device 500 performs a screen-down operation and generates a second broadcast packet after scanning the first broadcast packet; the second broadcast packet is used to indicate that the peripheral device 500 has received the first broadcast packet and has executed the screen-down command.

[0134] Scan the second broadcast packet sent by peripheral device 500, and in response to the detection of the second broadcast packet, execute the power-on process;

[0135] In response to the power-off command, a screen-raising command is generated and sent to peripheral device 500, so that peripheral device 500 performs the screen-raising operation and generates a third broadcast packet after receiving the screen-raising command;

[0136] Upon receiving the third broadcast packet from the peripheral device 500, the device responds to the third broadcast packet and executes the shutdown procedure.

[0137] As can be seen from the above technical solutions, the above embodiments provide a method for raising and lowering a screen. The method establishes a wireless communication connection with the peripheral device in the form of a broadcast packet. In response to a power-on command, it executes a power-on process when it receives a notification to lower the screen. In response to a power-off command, it executes a power-off process when it receives a notification to raise the screen. This avoids the time difference caused by manual power-on and power-off, thereby solving the problem that the raising or lowering of the screen is not synchronized with the power-on or power-off state when the display device, such as a laser TV, is turned on or off.

[0138] This application also provides a peripheral device 500 in some embodiments, which includes a communication unit 510 and a control unit 520. The communication unit 510 is configured to establish a communication connection with a display device 200, and the control unit 520, by running an application program, causes the peripheral device 500 to execute a screen raising and lowering method. Figure 10 This application provides schematic flowcharts illustrating the method for raising and lowering a screen using peripheral devices in some embodiments, such as... Figure 10 As shown, in some embodiments, the peripheral device 500 may include the following steps when performing the curtain raising and lowering method:

[0139] Step S10: Scan the first broadcast packet sent by the display device 200, and after scanning the first broadcast packet, perform a screen lowering operation and generate a second broadcast packet; the second broadcast packet is used to indicate that the peripheral device 500 has received the first broadcast packet and has executed the screen lowering command;

[0140] Step S20: Send the second broadcast packet to the display device 200 so that the display device 200 executes the power-on process after scanning the second broadcast packet;

[0141] Step S30: Receive the screen raising command sent by the display device 200, respond to the screen raising command, execute the screen raising process, and generate a third broadcast packet;

[0142] Step S40: Send the third broadcast packet to the display device 200 so that the display device 200 executes the shutdown procedure after receiving the third broadcast packet.

[0143] In the above embodiment, the peripheral device 500 can send feedback to the display device 200 via broadcast packets after receiving a screen raising or lowering command, so that the screen system in the peripheral device 500 can automatically synchronize with the power on / off state of the display device 200, thereby solving the problem that the screen raising or lowering is not synchronized with the power on / off state when the display device 200, such as a laser TV, is turned on or off.

[0144] This application also provides a method for raising and lowering a screen in some embodiments, the method including the following:

[0145] The system scans the first broadcast packet sent by the display device 200, and after scanning the first broadcast packet, performs a screen-lowering operation and generates a second broadcast packet; the second broadcast packet is used to indicate that the peripheral device 500 has received the first broadcast packet and has executed the screen-lowering command.

[0146] The second broadcast packet is sent to the display device 200 so that the display device 200 executes the power-on process after scanning the second broadcast packet;

[0147] Receive the screen raising command sent by the display device 200, respond to the screen raising command, execute the screen raising process, and generate a third broadcast packet;

[0148] A third broadcast packet is sent to the display device 200 so that the display device 200 executes a shutdown procedure upon receiving the third broadcast packet.

[0149] The method can send feedback to the display device 200 via broadcast packets after receiving a screen raising or lowering command, so that the screen system in the peripheral device 500 can automatically synchronize with the power on / off state of the display device 200, thereby solving the problem that the screen raising or lowering is not synchronized with the power on / off state when the display device 200, such as a laser TV, is turned on or off.

[0150] The same or similar parts among the various embodiments in this specification can be referred to mutually, and will not be repeated here.

[0151] Those skilled in the art will clearly understand that the techniques in the embodiments of the present invention can be implemented using software plus necessary general-purpose hardware platforms. Based on this understanding, the technical solutions in the embodiments of the present invention, or the parts that contribute to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or certain parts of the embodiments of the present invention.

[0152] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0153] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A display device, characterized in that, include: The monitor is configured to display the user interface; A communication device configured to establish a communication connection with peripheral devices; The controller is configured as follows: In response to a power-on command, after the display device enters broadcast mode, a first broadcast packet is sent to the peripheral device; the first broadcast packet is used to cause the peripheral device to perform a screen-down operation and generate a second broadcast packet after scanning the first broadcast packet; The second broadcast packet is used to indicate that the peripheral device has received the first broadcast packet and has performed a screen-down operation; Scan the second broadcast packet sent by the peripheral device, and in response to the detection of the second broadcast packet, execute the power-on process; In response to a power-off command, a screen-raising command is generated and sent to the peripheral device, so that the peripheral device performs a screen-raising operation and generates a third broadcast packet after receiving the screen-raising command; The device receives the third broadcast packet from the peripheral device and, in response to the third broadcast packet, executes a shutdown procedure.

2. The display device according to claim 1, characterized in that, Before sending the first broadcast packet to the peripheral device, the controller is further configured to: Turn on the Bluetooth module and set it to scanning mode; Scan the Bluetooth broadcast packets of the peripheral device based on the Bluetooth module; In response to the detection of the Bluetooth broadcast packet, a pairing connection is initiated with the peripheral device so that the display device and the peripheral device establish a communication connection based on the Bluetooth module.

3. The display device according to claim 2, characterized in that, After executing the power-on procedure, the controller is further configured to: After the display device loses power, it enters standby mode and powers on the Bluetooth module. The Bluetooth module scans the fourth broadcast packet of the peripheral device; The fourth broadcast packet is used to characterize the disconnection status between the display device and the peripheral device after the display device loses power; After scanning the fourth broadcast packet, a pairing connection is initiated with the peripheral device to restore the communication connection between the display device and the peripheral device.

4. The display device according to claim 3, characterized in that, After the controller initiates the pairing connection with the peripheral device, it is further configured to: After the display device and the peripheral device restore their communication connection, a secondary screen raising command is generated; The secondary screen raising command is sent to the peripheral device so that the peripheral device can perform the screen raising operation after receiving the secondary screen raising command.

5. The display device according to claim 4, characterized in that, After the controller sends the secondary screen raising command to the peripheral device, it is further configured to: The peripheral device receives a fifth broadcast packet in response to the secondary screen raising command; the fifth broadcast packet indicates that the peripheral device has completed the screen raising process according to the secondary screen raising command. In response to the fifth broadcast packet, a disconnect command is generated; The disconnect command is sent to the peripheral device so that the peripheral device disconnects its communication connection with the display device upon receiving the disconnect command.

6. The display device according to claim 2, characterized in that, Before the step of the controller sending the first broadcast packet to the peripheral device, it is further configured as follows: Identify the power-on method, which includes at least AC power-on method, DC power-on method, and suspended state power-on method; When the power-on method is the AC power-on method or the DC power-on method, the power-on process is triggered by a preset boot program, and after the power-on process is triggered, the step of sending a first broadcast packet to the peripheral device is executed; When the power-on mode is the suspended state power-on mode, in response to the Bluetooth module being turned on, the step of sending a first broadcast packet to the peripheral device is executed.

7. The display device according to claim 2, characterized in that, Before the controller generates the screen raising command, it is also configured as follows: Identify the shutdown method, which includes at least AC shutdown method, DC shutdown method, and suspended state shutdown method; When the power-off method is the AC power-off method, the power-off process is triggered by a preset boot program, and after the power-off process is triggered, the step of generating a screen-raising command is executed; When the power-off mode is DC power-off mode or suspended state power-off mode, in response to the display device being woken up, the step of generating a screen-raising command and sending the screen-raising command to the peripheral device is executed.

8. A method for raising and lowering a screen, applied to the display device according to any one of claims 1-7, characterized in that, The method includes: In response to a power-on command, after the display device enters broadcast mode, a first broadcast packet is sent to the peripheral device. The first broadcast packet is used to cause the peripheral device to perform a screen-lowering operation and generate a second broadcast packet after scanning the first broadcast packet. The second broadcast packet is used to indicate that the peripheral device has received the first broadcast packet and has performed the screen-lowering operation. Scan the second broadcast packet sent by the peripheral device, and in response to the detection of the second broadcast packet, execute the power-on process; In response to a power-off command, a screen-raising command is generated and sent to the peripheral device, so that the peripheral device performs a screen-raising operation and generates a third broadcast packet after receiving the screen-raising command; The device receives the third broadcast packet from the peripheral device and, in response to the third broadcast packet, executes a shutdown procedure.

9. A peripheral device, characterized in that, include: The communication unit is configured to establish a communication connection with the display device; The control unit is configured as follows: The system scans for a first broadcast packet sent by the display device, and after detecting the first broadcast packet, generates a screen-down command and a second broadcast packet, and performs a screen-down operation according to the screen-down command; the second broadcast packet is used to indicate that the peripheral device has received the first broadcast packet and has executed the screen-down command. The second broadcast packet is sent to the display device so that the display device executes the power-on process after scanning the second broadcast packet; Receive the screen raising command sent by the display device, respond to the screen raising command, execute the screen raising process, and generate a third broadcast packet; The third broadcast packet is sent to the display device so that the display device executes a shutdown procedure upon receiving the third broadcast packet.

10. A method for raising and lowering a screen, characterized in that, include: The system scans for a first broadcast packet sent by the display device, and after detecting the first broadcast packet, performs a screen lowering operation and generates a second broadcast packet. The second broadcast packet is used to indicate that the peripheral device has received the first broadcast packet and has performed a screen-down operation; The second broadcast packet is sent to the display device so that the display device executes the power-on process after scanning the second broadcast packet; Receive the screen raising command sent by the display device, respond to the screen raising command, execute the screen raising process, and generate a third broadcast packet; The third broadcast packet is sent to the display device so that the display device executes a shutdown procedure upon receiving the third broadcast packet.

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