WO2021248647A1

WO2021248647A1 - Display device, and control method for establishing connection with display device

Info

Publication number: WO2021248647A1
Application number: PCT/CN2020/104625
Authority: WO
Inventors: 庞秀娟; 宋子全; 朱雪生
Original assignee: 海信视像科技股份有限公司
Priority date: 2020-06-10
Filing date: 2020-07-24
Publication date: 2021-12-16
Also published as: CN111726663A

Abstract

A display device (200), and a control method for establishing a connection with the display device (200). The display device (200) comprises: a display (11), wherein the display (11) is configured to display a user interface, and projection screen content of an external device that establishes a connection with the display device (200); and a controller (12) communicating with the display (11), wherein the controller (12) is configured to execute the following flows: when connection requests of external devices are received, acquiring identifiers of the external devices from the connection requests (S101); and determining whether the identifiers of the external devices carried in the connection requests are included in a blacklist or a whitelist, and determining, according to a determination result, whether to establish a connection between the display device (200) and the external devices, wherein the whitelist comprises the identifier of the external device that can establish the connection with the display device (200), and the blacklist comprises an identifier of an external device that cannot establish a connection with the display device (200) (S102).

Description

Display device and control method for establishing connection with display device

This application requires priority to be submitted to the Chinese Patent Office on June 10, 2020, the application number is CN202010522106.3, and the application name is "display devices and control methods for establishing connections with display devices"; the entire contents of which are incorporated herein by reference Applying.

Technical field

This application relates to the field of display technology, and in particular to a display device and a control method for establishing a connection with the display device.

Background technique

In the field of smart home appliances, smart technology continues to develop, and the interaction between smart phones and smart TVs is becoming more and more popular among users. There are more and more interactive scenes of smart TVs with multiple screens, and more and more ways to connect. Mobile phones can establish connections with the TV through LAN, cross-network, p2p or Bluetooth. If no security mechanism is set up, the TV will be threatened. The user may unknowingly, the TV at home was illegally connected and manipulated by other people, or illegal content was cast on the TV, affecting the normal use of the TV.

Summary of the invention

A display device provided by an embodiment of the present application includes:

A display configured to display a user interface and screen projection content of an external device connected to the display device;

A controller in communication with the display, the controller is configured to execute the following process:

When receiving a connection request from an external device, obtain the identifier of the external device from the connection request;

Determine whether the identifier of the external device carried in the connection request is included in the blacklist or the whitelist, and determine whether to establish a connection between the display device and the external device according to the judgment result, wherein the white The list includes identifiers of external devices that can establish a connection with the display device, and the blacklist includes identifiers of external devices that cannot establish a connection with the display device.

In some embodiments of the present application, if the identifier of the external device is neither included in the blacklist nor included in the whitelist, the controller is further configured to:

Control the display to present a user interface including untrust, trust and connect, and shield selection buttons; wherein,

If the user selects the trust and connect button, the identification of the external device is added to the whitelist, and if the protocol used to establish the connection between the external device and the display device is a connection protocol, then all of them are directly established. For the connection between the external device and the display device, if the protocol used to establish the connection between the external device and the display device is a projection protocol, display the projection content of the external device;

If the user selects the untrust button, control the display device not to establish a connection with the external device;

If the user selects the shield button, the identifier of the external device is added to the blacklist.

In some embodiments of the present application, while adding the identifier of the external device to the white list, the controller also adds the protocol used to establish a connection between the external device and the display device to all In the white list.

In some embodiments of the present application, when the identifier of the external device is added to the blacklist, the controller also adds the protocol used to establish the connection between the external device and the display device to all Said in the blacklist.

In some embodiments of the present application, if the identifier of the external device is in the whitelist, and the external device requests to establish a connection through the protocol of the display device, then:

If the protocol used to establish the connection between the external device and the display device is a connection protocol, the controller controls to directly establish a connection between the external device and the display device. The protocol used by the display device to establish a connection is a projection protocol, and the controller controls the display to display the projection content of the external device.

In some embodiments of the present application, if the identifier of the external device is in the whitelist, and the external device does not request to establish a connection through the protocol of the display device, the controller is further configured to:

If the user selects the trust and connect button, the identification of the external device is added to the whitelist, and if the protocol used to establish the connection between the external device and the display device is a connection protocol, then all of them are directly established. For the connection between the external device and the display device, if the protocol used to establish the connection between the external device and the display device is a projection protocol, controlling the display to display the projection content of the external device;

In some embodiments of the present application, if the identifier of the external device is in the blacklist, the controller controls the display device not to establish a connection with the external device.

In some embodiments of the present application, the controller is also used to:

Control the display to present the management interface of the black list and the white list of the display device, so that the user can edit and manage the black list and/or white list through the management interface.

Correspondingly, a control method for establishing a connection with a display device provided in an embodiment of the present application includes:

Determine whether the identifier of the external device carried in the connection request is included in a preset blacklist or whitelist, and determine whether to establish a connection between the external device and the display device according to the judgment result, wherein the whitelist The blacklist includes identifiers of external devices that can establish a connection with the display device, and the blacklist includes identifiers of external devices that cannot establish a connection with the display device.

Another embodiment of the present application provides a computing device, which includes a memory and a processor, wherein the memory is used to store program instructions, and the processor is used to call the program instructions stored in the memory, according to the obtained program Perform the above method.

Another embodiment of the present application provides a computer storage medium that stores computer-executable instructions, and the computer-executable instructions are used to make the computer execute the above-mentioned method.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings needed in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings.

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

FIG. 2 is a schematic diagram of the processing procedure for establishing a connection between a mobile phone and a smart TV provided by an embodiment of the application;

FIG. 3 is a schematic diagram of a user interface for providing users with untrust, trust and connect, and shield selection buttons provided by an embodiment of this application;

FIG. 4 is a schematic diagram of the management interface of the black and white lists presented to the user if the black and white lists on the TV terminal are empty according to an embodiment of this application;

FIG. 5 is a schematic diagram of the management interface of the black and white lists that are presented to the user if the user needs to add commonly used devices provided by this embodiment of the application;

FIG. 6 is a schematic diagram of the management interface of the black and white lists that are presented to the user if the user needs to remove the commonly used equipment provided by the embodiment of the application;

FIG. 7 is a schematic diagram of a prompt interface presented to the user when the device identifier is removed from a commonly used device according to an embodiment of this application;

FIG. 8 is a schematic diagram of the management interface of the black and white lists that are presented to the user if the user needs to remove the shielding device according to an embodiment of this application;

FIG. 9 is a schematic diagram of a prompt interface presented to the user when the identification of the device is removed from the shielding device according to an embodiment of this application;

FIG. 10 is a schematic diagram of the management interface of the black and white lists that the user can also add a shielding device provided by this embodiment of the application;

FIG. 11 is a schematic structural diagram of a display device provided by an embodiment of the application;

FIG. 12 is a schematic flowchart of a control method for establishing a connection with a display device according to an embodiment of the application.

detailed description

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The embodiments of the present application provide a display device and a control method for establishing a connection with the display device. For example, it can be applied to a smart terminal (such as a mobile phone, a computer, a tablet computer, and other terminal devices) and a television device (such as a smart TV). Screen interactive technology field.

The technical solution provided by the embodiments of this application saves the whitelist and blacklist of the smart terminal connected to it on the TV. The devices in the whitelist can directly allow it to connect with the TV and respond to its control or directly display the projection screen. Content; the devices in the blacklist are directly shielded in the connection stage, and the user will not perceive it. For devices that are not in the whitelist or blacklist, that is, devices that newly request to establish a connection with the TV, a dialog box will pop up when connecting to allow the user to choose whether to allow, deny, or deny forever. In addition, users can also manually remove devices from the whitelist and blacklist or perform other edits.

Through the technical solutions provided by the embodiments of this application, the identities of the terminal devices through all connection modes are classified and saved on the TV, divided into whitelists and blacklists, and can be managed. Only mobile devices in the whitelist allow them to perform Connect and respond to its control commands, and the devices in the blacklist are directly shielded in the connection phase, and the user will not perceive it. If the device is not in the whitelist or blacklist, a dialog box will pop up every time the user connects, allowing the user to choose to block, distrust, trust and connect, thereby greatly improving the security of the multi-screen interactive function and avoiding illegal terminals and smart devices. The TV establishes a connection, so as to prevent the TV from being threatened, and to prevent the user from unknowingly, the TV at home is illegally connected and manipulated by other people, or illegal content is cast on the TV, which affects the normal use of the TV.

Among them, the methods and devices described in the embodiments of the present application are based on the same application concept. Since the principles of the methods and devices for solving problems are similar, the implementation of the methods and devices can be referred to each other, and the repetitions will not be repeated.

Hereinafter, each embodiment of the present application will be described in detail with reference to the accompanying drawings of the specification. It should be noted that the display order of the embodiments of the present application only represents the sequence of the embodiments, and does not represent the pros and cons of the technical solutions provided by the embodiments.

Fig. 1 exemplarily shows a schematic diagram of an operation scenario between a display device and a control device according to an embodiment of the present application. As shown in FIG. 1, the user can operate the display device 200 by controlling the device 100.

Wherein, the control device 100 may be a remote control 100A, including infrared protocol communication or Bluetooth protocol communication, and other short-distance communication methods, etc., to control the display device 200 in a wireless or other wired manner. The user can control the display device 200 by inputting user instructions through keys on the remote control, voice input, control panel input, etc. For example: the user can control the display device 200 by inputting corresponding control instructions through the volume plus and minus keys, channel control keys, up/down/left/right movement keys, voice input keys, menu keys, switch machine keys, etc. on the remote control. Function.

The control device 100 may also be a smart device, such as a mobile terminal 100B, a tablet computer, a computer, a notebook computer, and the like. For example, an application program running on a smart device is used to control the display device 200. The application can provide users with various controls through an intuitive user interface (UI) on the screen associated with the smart device.

For example, the mobile terminal 100B may install a software application with the display device 200, realize connection communication through a network communication protocol, and realize the purpose of one-to-one control operation and data communication. For example, the mobile terminal 100B can establish a control command protocol with the display device 200, synchronize the remote control keyboard to the mobile terminal 100B, and control the display device 200 by controlling the user interface on the mobile terminal 100B. The audio and video content displayed on the mobile terminal 100B can also be transmitted to the display device 200 to realize the synchronous display function.

As shown in FIG. 1, the display device 200 also performs data communication with the server 300 through multiple communication methods. The display device 200 may be allowed to communicate through a local area network (LAN), a wireless local area network (WLAN), and other networks. The server 300 may provide various contents and interactions to the display device 200. For example, the display device 200 can receive software program updates or access remotely stored digital media libraries by sending and receiving information and interacting with an electronic program guide (EPG). The server 300 may be a group or multiple groups, and may be one or more types of servers. The server 300 provides other network service content such as video-on-demand and advertising services.

The display device 200 may be a liquid crystal display, an OLED display, or a projection display device. The specific display device type, size, resolution, etc. are not limited, and those skilled in the art can understand that the display device 200 can make some changes in performance and configuration as required.

In addition to providing the broadcast receiving TV function, the display device 200 may additionally provide a smart network TV function with a computer support function. Examples include Internet TV, Smart TV, Internet Protocol TV (IPTV), and so on.

Referring to FIG. 2, the specific implementation process of the technical solution provided by the embodiment of the present application includes, for example:

Step S201a: The TV terminal receives a connection request sent by an external device, the connection request carries the identifier of the external device, and the TV terminal detects whether the identifier is in the blacklist or whitelist preset by the TV terminal, if both are If not, execute step S202;

Otherwise, if the identifier of the external device is in the whitelist preset on the TV, step S201b is executed, that is, it is judged whether the external device is requested to connect through the TV protocol, if not, then step S202 is executed; if so, Then step S203 is executed. If the identifier of the external device is in the blacklist preset by the TV, step S205 is executed.

Wherein, the protocol types of the TV-side protocol include:

Projection protocol: such as DLNA, Miracast, Airplay, etc.;

Connection agreement: private agreement.

Step S202: A dialog box pops up on the TV side to provide the user with selection buttons such as distrust, trust and connect, and shield, for example, the user interface shown in FIG. 3.

If the user selects the trust and connect button, step S204 is executed;

If the user selects the untrust button, step S205 is executed;

If the user selects the shield button, step S206 is executed.

Step S203: If the TV protocol is a connection protocol, the connection between the external device and the TV is directly established; if the TV protocol is a projection protocol, the screen content of the external device is displayed on the TV.

Step S204: If there is no identification of the external device in the white list, the identification of the external device is added to the white list preset by the TV terminal, and the external device is further connected to the TV terminal. The protocol type (projection protocol or private protocol) of the TV protocol used to establish the connection is also added to the white list preset by the TV.

If there is an identifier of the external device in the whitelist, the protocol type of the television protocol (projection protocol or private protocol) used by the external device to establish a connection with the television is also added to the In the whitelist preset on the TV side;

If the television protocol used to establish the connection between the external device and the television terminal is a connection protocol, the connection between the external device and the television terminal is directly established, if the external device establishes a connection with the television terminal The TV-side protocol used for the connection is a screen-casting protocol, and the screen-cast content of the external device is displayed on the TV terminal.

Step S205: The TV terminal does not do any processing, or rejects the connection request of the external device, and further, it can also send an alarm message.

Step S206: Add the protocol type of the television protocol used by the external device to establish the connection with the television, and the identifier of the external device to the blacklist.

In addition, the user can also open the black and white list management interface in the TV settings, and the user can call up the black and white lists for maintenance and management, such as deleting the device identification and TV protocol that have been added to the black and white lists. If the device requests to connect to the TV again next time, repeat the above step 1. Specifically, for example:

If the black and white lists on the TV are empty, the management interface of the black and white lists presented to the user is shown in Figure 4, where commonly used devices are white lists and blocked devices are black lists.

If the user needs to add a commonly used device, the black and white list management interface presented to the user is shown in Figure 5. In the commonly used device, a new device identifier can be added, such as device 1, and of course other related content can be added, such as TV protocol, etc.

If the user needs to remove the commonly used device, the management interface of the black and white list presented to the user is shown in Figure 6. In the commonly used device, the device identification can be removed. The prompt interface is shown in Figure 7. The user is asked to confirm whether to remove the device. There are three selection buttons on the interface: cancel, remove, and block. If the user chooses to cancel, the operation of removing device one will be cancelled. If the user chooses to remove, confirm to remove the device one from the list of frequently used devices. If the user chooses to block, the logo of device one will be added to the list of blocked devices Medium, that is, transfer from the white list to the black list. Of course, users can also remove other related content, such as TV-side protocols.

In the same way, if the user needs to remove the blocked device, the management interface of the black and white list presented to the user is shown in Figure 8. In the blocked device, the device identification can be removed. The prompt interface for the user is shown in Figure 9. The user is asked to confirm whether to cancel the shielding of device five. There can be two selection buttons on this interface: cancel shielding and continue shielding. If the user chooses to cancel the blocking, the operation of removing device 5 will be cancelled. If the user chooses to continue blocking, confirm to remove the device 5 from the blocked device list. Of course, users can also remove other related content, such as TV-side protocols.

In the same way, the user can also add shielded devices, and the management interface of the black and white lists presented to the user is shown in Figure 10. The user can add a new device identifier to the list of shielded devices, for example, when the user selects Figure 3 The shielding button shown and when the user selects the shielding button shown in FIG. 7 will present the interface shown in FIG. 10, and the identification of the shielding device that the user has confirmed to be added is added to the shielding device list. Of course, you can also add other related content to the list of blocked devices, such as TV protocol.

In summary, referring to FIG. 11, a display device provided by an embodiment of the present application includes:

A display 11, which is configured to display a user interface and screen projection content of an external device connected to the display device;

The controller 12 that communicates with the display is configured to execute the following procedures to implement the display 11 to display a user interface, and screen content of an external device connected to the display device, etc.:

When receiving the connection request of the external device, obtain the identifier of the external device from the connection request; for example, the identifier of the external device carried in the connection request of the received external device is "device one";

The display device, when receiving a connection request from an external device, judges whether the identifier of the external device carried in the connection request is included in the blacklist or the whitelist, and determines whether to establish according to the judgment result The connection between the display device and the external device improves the security of the multi-screen interactive function and prevents illegal terminals from establishing a connection with the smart TV.

In some embodiments of the present application, if the identifier of the external device is neither included in the blacklist nor included in the whitelist, the controller 12 is further configured to:

Control the display to present a user interface containing buttons for untrust, trust and connect, and shield selection (for example, the interface shown in Figure 3, where "XX mobile phone" is the identification of the external device requesting to establish a connection); where,

If the user selects the trust and connect button, the identification of the external device is added to the whitelist, and if the protocol used to establish the connection between the external device and the display device is a connection protocol, then all of them are directly established. For the connection between the external device and the display device, if the protocol used to establish the connection between the external device and the display device is a projection protocol, control the display 11 to display the projection content of the external device;

If the user selects the untrust button, control the display device not to establish a connection with the external device; for example, perform the above-mentioned process of step S205;

In some embodiments of the present application, while adding the identifier of the external device to the white list, the controller 12 also adds the protocol used to establish a connection between the external device and the display device to In the white list.

In some embodiments of the present application, when the identifier of the external device is added to the blacklist, the controller 12 also adds the protocol used to establish the connection between the external device and the display device. In the blacklist.

In some embodiments of the present application, if the identifier of the external device is in the white list, and the external device does not request to establish a connection through the protocol of the display device, the controller 12 is also configured to :

In some embodiments of the present application, if the identifier of the external device is in the blacklist, the controller 12 controls the display device not to establish a connection with the external device.

In some embodiments of the present application, the controller 12 is further configured to:

Control the display to present the management interface of the black and white list of the display device (for example, the interface shown in Figure 4 to Figure 10), so that the user can edit and manage the black list and/or white list through the management interface, For example, operations such as deleting or adding an external device identifier in the blacklist and/or whitelist, etc., refer to the foregoing content for details, and will not be repeated here.

Referring to FIG. 12, correspondingly, a control method for establishing a connection with a display device provided by an embodiment of the present application includes:

S101: When a connection request of an external device is received, obtain an identifier of the external device from the connection request;

S102. Determine whether the identifier of the external device carried in the connection request is included in a preset blacklist or whitelist, and determine whether to establish a connection between the external device and the display device according to the judgment result, wherein The whitelist includes identifiers of external devices that can establish a connection with the display device, and the blacklist includes identifiers of external devices that cannot establish a connection with the display device.

Wherein, whether to establish a connection between the external device and the display device is determined according to the judgment result. For details, please refer to the flow shown in FIG. 2 above, which will not be repeated here.

In summary, the technical solution provided by the embodiments of this application can classify and save the identifications of terminal devices through all connection modes on the TV, divided into whitelists and blacklists, and can be managed. Only mobile phones in the whitelist can be managed. Terminals such as devices allow it to connect with the TV and respond to its control instructions, while the devices in the blacklist are directly shielded in the connection stage, and the user will not perceive it. If the device is not in the whitelist or blacklist, a dialog box will pop up every time you connect to let the user choose to block, untrust, or trust and connect. Thus, the security of the multi-screen interactive function can be greatly improved.

It should be noted that the division of units (such as displays and controllers) in the embodiments of the present application is illustrative, and can be understood as a logical function division, and there may be other division methods in actual implementation. In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , Including several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

The embodiments of the present application provide a computing device, and the computing device may specifically be a desktop computer, a portable computer, a smart phone, a smart TV, a tablet computer, a personal digital assistant (Personal Digital Assistant, PDA), etc. The computing device may include a central processing unit (CPU), a memory, an input/output device, etc. The input device may include a keyboard, a mouse, a touch screen, etc., and an output device may include a display device, such as a liquid crystal display (Liquid Crystal Display, LCD), Cathode Ray Tube (CRT), etc.

The memory may include read only memory (ROM) and random access memory (RAM), and provides the processor with program instructions and data stored in the memory. In the embodiment of the present application, the memory may be used to store the program of any of the methods provided in the embodiment of the present application.

The processor calls the program instructions stored in the memory, and the processor is configured to execute any of the methods provided in the embodiments of the present application according to the obtained program instructions.

The embodiment of the present application provides a computer storage medium for storing computer program instructions used by the device provided in the foregoing embodiment of the present application, which includes a program for executing any method provided in the foregoing embodiment of the present application.

The computer storage medium may be any available medium or data storage device that can be accessed by the computer, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CDs, DVDs, etc.) BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)), etc.

The processing flow of the above method can be implemented by a software program, which can be stored in a storage medium, and when the stored software program is called, the steps of the above method are executed.

Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) containing computer-usable program codes.

This application is described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of this application. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are used to generate It is a device that implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the implementation to the specific form disclosed above. According to the above teaching, various modifications and variations can be obtained. The selection and description of the above implementation manners are for better explaining the principles and practical applications, so that those skilled in the art can better use the implementation manners and various modified implementation manners suitable for specific use considerations.

Claims

A display device, characterized in that it comprises:

A display configured to display a user interface and screen projection content of an external device connected to the display device;

A controller in communication with the display, the controller is configured to execute the following process:

When receiving a connection request from an external device, obtain the identifier of the external device from the connection request;

Determine whether the identifier of the external device carried in the connection request is included in the blacklist or the whitelist, and determine whether to establish a connection between the display device and the external device according to the judgment result, wherein the white The list includes identifiers of external devices that can establish a connection with the display device, and the blacklist includes identifiers of external devices that cannot establish a connection with the display device.
The display device according to claim 1, wherein if the identifier of the external device is not included in the blacklist nor included in the whitelist, the controller is further configured to:

Control the display to present a user interface including untrust, trust and connect, and shield selection buttons; wherein,

If the user selects the trust and connect button, the identification of the external device is added to the whitelist, and if the protocol used to establish the connection between the external device and the display device is a connection protocol, then all of them are directly established. For the connection between the external device and the display device, if the protocol used to establish the connection between the external device and the display device is a projection protocol, display the projection content of the external device;

If the user selects the untrust button, control the display device not to establish a connection with the external device;

If the user selects the shield button, the identifier of the external device is added to the blacklist.
The display device according to claim 2, wherein when the identifier of the external device is added to the white list, the controller also uses the external device to establish a connection with the display device. Is added to the whitelist.
The display device according to claim 2, wherein when the identifier of the external device is added to the blacklist, the controller also uses the external device to establish a connection with the display device. Is added to the blacklist.
The display device according to claim 1, wherein if the identifier of the external device is in the white list, and the external device requests to establish a connection through the protocol of the display device, then:

If the protocol used to establish the connection between the external device and the display device is a connection protocol, the controller controls to directly establish a connection between the external device and the display device. The protocol used by the display device to establish a connection is a projection protocol, and the controller controls the display to display the projection content of the external device.
The display device according to claim 1, wherein if the identifier of the external device is in the white list, and the external device does not request to establish a connection through the protocol of the display device, the control The device is also used for:

Control the display to present a user interface including untrust, trust and connect, and shield selection buttons; wherein,

If the user selects the trust and connect button, the identification of the external device is added to the whitelist, and if the protocol used to establish the connection between the external device and the display device is a connection protocol, then all of them are directly established. For the connection between the external device and the display device, if the protocol used to establish the connection between the external device and the display device is a projection protocol, controlling the display to display the projection content of the external device;

If the user selects the untrust button, control the display device not to establish a connection with the external device;

If the user selects the shield button, the identifier of the external device is added to the blacklist.
The display device according to claim 1, wherein if the identifier of the external device is in the blacklist, the controller controls the display device not to establish a connection with the external device.
The display device according to claim 1, wherein the controller is further configured to:

Control the display to present the management interface of the black list and the white list of the display device, so that the user can edit and manage the black list and/or white list through the management interface.
A control method for establishing a connection with a display device, characterized in that it comprises:

When receiving a connection request from an external device, obtain the identifier of the external device from the connection request;

Determine whether the identifier of the external device carried in the connection request is included in a preset blacklist or whitelist, and determine whether to establish a connection between the external device and the display device according to the judgment result, wherein the whitelist Includes the identifiers of the external devices that can establish a connection with the display device, and the blacklist includes the identifiers of the external devices that cannot establish a connection with the display device.
A computer storage medium, wherein the computer storage medium stores computer-executable instructions, and the computer-executable instructions are used to make the computer execute the method of claim 9.