Display screen, safety control method of display screen, equipment and medium

Abstract

The invention discloses a display screen, a safety control method of the display screen, equipment and a medium. The display screen comprises a control assembly and a plurality of display modules. Wherein the receiving card and the at least one display panel transmit signals through wireless connection, so that the display module can realize a display function. When the wireless communication connection between the receiving card and the display panel is interrupted, the risk that the box body of the display module is opened is large, the receiving card can generate a first interruption signal at the moment and send the first interruption signal to the control assembly in real time, and therefore the control assembly can respond to the first interruption signal to interrupt a video signal in time; the effect that the multiple display modules stop displaying the video is achieved, and therefore the safety of the display screen can be improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display screen, a method for safely controlling a display screen, a device, and a medium. Background Art

[0002] A display screen is a device used to show movies.

[0003] The current display screen includes: a sending card, multiple receiving cards and multiple display modules. The sending card can receive the video signal sent by the server, and the sending card can distribute the video signal to multiple receiving cards, so that the receiving cards can control the corresponding display modules to display the picture.

[0004] However, the display module of the above-mentioned display screen may be opened, and relevant personnel may easily intercept the video signal from the opened display module, resulting in poor security of the display screen. Summary of the invention

[0005] The embodiments of the present application provide a display screen, a method, a device and a medium for controlling the security of the display screen. The technical solution is as follows:

[0006] According to a first aspect of the present application, a display screen is provided, the display screen comprising: a control component and a plurality of display modules; the display module comprising: a housing, and a receiving card and at least one display panel installed in the housing, the receiving card being wirelessly connected to the at least one display panel; the control component being electrically connected to the receiving cards in each of the display modules, and being used to send a corresponding video signal to each of the receiving cards;

[0007] The control component is configured to:

[0008] In response to receiving a first interrupt signal sent by the receiving card, interrupting sending the corresponding video signal to each receiving card, wherein the first interrupt signal is a signal generated by the receiving card after determining that the wireless communication connection between the receiving card and the at least one display panel is interrupted.

[0009] Optionally, the display module further includes: a first wireless communication module and at least one second wireless communication module, the first wireless communication module is electrically connected to the receiving card, the at least one second wireless communication module corresponds to the at least one display panel, and the second wireless communication module is electrically connected to the corresponding display panel; the receiving card is configured as:

[0010] Detecting the distance between the receiving card and the at least one display panel through the first wireless communication module and the at least one second wireless communication module;

[0011] After determining that the distance between the receiving card and the at least one display panel is greater than a preset value, interrupting the wireless communication connection with the at least one display panel and generating the first interrupt signal;

[0012] The first interrupt signal is sent to the control component.

[0013] Optionally, the receiving card is further configured as:

[0014] Transmitting a detection signal to the at least one second wireless communication module through the first wireless communication module;

[0015] Acquire the transmission time of the detection signal fed back by the second wireless communication module;

[0016] The distance between the receiving card and the at least one display panel is determined based on the transmission time.

[0017] Optionally, the control component includes: a sending card, the sending card is communicatively connected to the server and electrically connected to the receiving cards in each of the display modules, and the server is used to send the decrypted video source to the sending card;

[0018] The sending card is configured as:

[0019] Sending the corresponding video signal to each receiving card based on the decrypted video source;

[0020] In response to receiving the first interrupt signal, the sending of the corresponding video signal to each of the receiving cards is interrupted.

[0021] Optionally, the control component further includes: a security module, the security module is communicatively connected to the server and electrically connected to the receiving card in each of the display modules;

[0022] The security module is configured to:

[0023] In response to receiving the first interrupt signal, a second interrupt signal is sent to the server, wherein the second interrupt signal is used to instruct the server to interrupt sending the decrypted video source to the sending card.

[0024] In a second aspect, a method for safely controlling a display screen is provided, the method being used for a control component in any of the above-mentioned display screens, the display screen further comprising: a plurality of display modules; the display module comprising: a housing, and a receiving card and at least one display panel installed in the housing, the receiving card being wirelessly connected to the at least one display panel; the control component being electrically connected to the receiving cards in each of the display modules, and being used to send a corresponding video signal to each of the receiving cards; the method comprising:

[0025] In response to receiving a first interrupt signal sent by the receiving card, interrupting sending the corresponding video signal to each receiving card, wherein the first interrupt signal is a signal generated by the receiving card after determining that the wireless communication connection between the receiving card and the at least one display panel is interrupted.

[0026] Optionally, the display module further includes: a first wireless communication module and at least one second wireless communication module, the first wireless communication module is electrically connected to the receiving card, the at least one second wireless communication module corresponds to the at least one display panel, and the second wireless communication module is electrically connected to the corresponding display panel; the method further includes:

[0027] Controlling the receiving card to detect the distance between the receiving card and the at least one display panel through the first wireless communication module and the at least one second wireless communication module;

[0028] Controlling the receiving card to interrupt the wireless communication connection with the at least one display panel and generate the first interrupt signal after determining that the distance between the receiving card and the at least one display panel is greater than a preset value;

[0029] Receive a first interrupt signal sent by the receiving card.

[0030] Optionally, the control component is in communication with the server, and the server is used to send the decrypted video source to the sending card; the method further includes:

[0031] In response to receiving the first interrupt signal, a second interrupt signal is sent to the server, wherein the second interrupt signal is used to instruct the server to interrupt sending the decrypted video source to the sending card.

[0032] In a third aspect, an electronic device is provided, comprising a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement any of the above methods.

[0033] In a fourth aspect, a computer storage medium is provided, wherein at least one instruction, at least one program, a code set or an instruction set is stored in the computer storage medium, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by a control component to implement any of the above methods.

[0034] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0035] In the display screen provided by the present application, the receiving card and at least one display panel transmit signals through a wireless connection, so that the display module can realize the display function. When the wireless communication connection between the receiving card and the display panel is interrupted, the risk of the box of the display module being opened is relatively high. At this time, the receiving card can generate a first interrupt signal and send the first interrupt signal to the control component in real time, so that the control component can interrupt the video signal in time in response to the first interrupt signal, so as to achieve the effect that multiple display modules all stop displaying videos, thereby improving the safety of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 It is a structural schematic diagram of a display screen provided by a related technology;

[0038] Figure 2 It is a structural schematic diagram of a display screen provided in an embodiment of the present application;

[0039] Figure 3 An exploded view of a display module provided in an embodiment of the present application;

[0040] Figure 4 is a schematic diagram of the structure of another display screen provided in an embodiment of the present application;

[0041] Figure 5 is a schematic diagram of the structure of another display screen provided in an embodiment of the present application;

[0042] Figure 6 is a schematic diagram of the structure of another display screen provided in an embodiment of the present application;

[0043] Figure 7 It is a flow chart of another method for security control of a display screen provided in an embodiment of the present application.

[0044] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0045] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0046] In the international certification standard in the field of digital cinema (Digital Cinema Initiatives, DCI), it is required that the display screen used for projecting movies must meet safety standards, that is, once the box of the display module is opened during the normal playback of the movie, the server must respond and stop transmission.

[0047] Figure 1 It is a structural schematic diagram of a display screen provided by a related technology, and the display screen includes: a control component 31 and multiple display modules 32, a power supply component 33 and a pressure sensor 34. Among them, the control component 31 includes a sending card 311 and a security module 312, and the display module 32 includes: a box 321, a receiving card 322 and at least one display panel 323. A pressure sensor 34 is installed in the box 321 of each display module 32 to detect whether the box 321 is opened. Once the box 321 of the display module 32 is opened, the pressure sensor 34 will transmit an interrupt signal to achieve safety control. However, the pressure sensor 34 is limited by pressure and is prone to failure. After failure, it cannot detect that the box 321 is opened, and the transmission interrupt signal may not be timely, resulting in the failure of safety control.

[0048] The present application embodiment provides a display screen, please refer to Figure 2 , Figure 2 It is a structural schematic diagram of a display screen provided in an embodiment of the present application. The display screen 10 includes: a control component 11 and a plurality of display modules 12.

[0049] Here, the display screen 10 can be a light-emitting diode (LED) display screen. The LED display screen uses light-emitting diodes as light-emitting elements and has the advantages of pure chromaticity, wide dynamic range, high brightness, high definition, low operating voltage, low power consumption, long life, impact resistance, large viewing angle, stable and reliable operation, etc. Exemplarily, the light-emitting diodes used in the LED display screen can include ordinary-sized light-emitting diodes, mini light-emitting diodes (mini Light-Emitting Diode, mini-LED), and micro light-emitting diodes (English: Micro Light-Emitting Diode, Micro-LED). In addition, the display screen 10 can include a plurality of display modules 12 spliced ​​together to achieve a large-size display, so that the display screen 10 can be suitable for showing movies in a cinema.

[0050] The display module 12 includes: a box 121 , and a receiving card 122 and at least one display panel 123 installed in the box 121 . The receiving card 122 is connected to the at least one display panel 123 via wireless communication.

[0051] Here, the box body 121 may provide a receiving space to install the receiving card 124 b and at least one display panel 123 , and the receiving card 122 is located on one side of the back side of the display panel 123 .

[0052] The receiving card 122 is a component that can receive an external signal and decode it. The receiving card 122 can be used to receive and process the video signal sent by the control component 11, so as to decode and convert the video signal into a signal that can be recognized by the display panel 123 according to a specific protocol and format, and then transmit it to at least one display panel 123. Exemplarily, when the display module 12 includes multiple display panels 123, the receiving card 122 is used to transmit signals to the multiple display panels 123.

[0053] The display panel 123 is used to display a screen according to the image data after receiving the image data. The number of the display panels 123 in the display module 12 can be one or more. For example, Figure 2 The display module 12 shown includes a display panel 123. In addition, the display module 12 provided in the embodiment of the present application may also include: a plurality of display panels 123 arranged in rows and columns, for example, two rows and two columns (2*2).

[0054] To achieve wireless communication connection, the receiving card 122 and at least one display panel 123 can both be provided with a wireless communication module, and when the display module 12 includes multiple display panels 123, the wireless communication module of the receiving card 122 is matched and connected with multiple wireless communication modules of the multiple display panels 123 respectively.

[0055] The control component 11 is electrically connected to the receiving card 122 in each display module 12, and is used to send a corresponding video signal to each receiving card 122. Here, the control component 11 can be used to control the display function of each display module 12, and the implementation process of the display function may include: the control component 11 processes the video source data into video data of a partial image to be displayed by multiple display modules 12, that is, a video signal, and then sends the video signal to the receiving card 122 in the corresponding display module 12; the receiving card 122 processes the received video signal into partial image data to be displayed by multiple display panels 123, and then transmits them to the corresponding display panels 123 respectively, and the display panels 123 display the screen according to the image data.

[0056] The control component 11 is configured to:

[0057] In response to receiving a first interrupt signal sent by the receiving card 122, sending the corresponding video signal to each receiving card 122 is interrupted. The first interrupt signal is a signal generated by the receiving card 122 after determining that the wireless communication connection between the receiving card 122 and at least one display panel 123 is interrupted.

[0058] Here, in a certain display module 12 (for example, the display module 12 where the receiving card n is located), when the wireless communication connection between the receiving card 122 and the display panel 123 is interrupted, the risk of the box 121 of the display module 12 being opened is relatively high. At this time, the receiving card 122 can generate a first interrupt signal and send the first interrupt signal to the control component 11 in real time, so that the control component 11 can interrupt the video signal in time in response to the first interrupt signal, and then multiple display modules 12 all stop displaying, thereby improving the safety of the display screen. In addition, there is no need to set a pressure sensor in the display module 12 provided in the embodiment of the present application, which reduces the risk of safety control failure caused by pressure sensor failure.

[0059] In summary, the embodiment of the present application provides a display screen, wherein a receiving card and at least one display panel transmit signals through a wireless connection, so that the display module can realize a display function. When the wireless communication connection between the receiving card and the display panel is interrupted, the risk of the display module being opened is relatively high. At this time, the receiving card can generate a first interrupt signal and send the first interrupt signal to the control component in real time, so that the control component can interrupt the video signal in time in response to the first interrupt signal, so as to achieve the effect that multiple display modules all stop displaying videos, thereby improving the safety of the display screen.

[0060] Optionally, the display screen provided in the embodiment of the present application is a movie display screen.

[0061] In the embodiment of the present application, the receiving card and at least one display panel can realize wireless communication connection through a wireless communication module. The wireless communication module is described below:

[0062] Please refer to Figure 3 , Figure 3 An exploded diagram of a display module is provided in an embodiment of the present application, wherein the display module 12 includes: a first wireless communication module 124a and at least one second wireless communication module 124b, wherein the first wireless communication module 124a is electrically connected to a receiving card 122, and the at least one second wireless communication module 124b corresponds to at least one display panel 123, and the second wireless communication module is electrically connected to the corresponding display panel 123.

[0063] Exemplarily, the first wireless communication module 124a and the receiving card 122 can be plugged into a signal access circuit board (hub board), and the signal access circuit board can be fixedly mounted on the inner wall of the display panel 123 of the box 121. For example, the signal access circuit board can be parallel to the display panel 123, or the signal access circuit board can also intersect with the display panel 123. The display module 12 can include: a display panel 123 with two rows and two columns (2*2), and correspondingly, the display module 12 includes: four second wireless communication modules 124b, and the second wireless communication modules 124b are fixed on the back of the corresponding display panel 123.

[0064] Thus, in the installed display module 12, the distance between the first wireless communication module 124a and the second wireless communication module 124b is constant, and the signal transmission time or signal strength changes little when the receiving card 122 and the display panel 123 transmit signals. Therefore, when the box 121 is disassembled or the display panel 123 is removed, the distance between the receiving card 122 and the display panel 123 changes significantly, and the signal transmission time or signal strength can reflect the distance change.

[0065] In addition, in the same display module 12 , the distance between the first wireless communication module 124 a and the second wireless communication module 124 b is relatively short, so that fast and stable signal transmission can be achieved.

[0066] The receiving card 122 is configured as follows:

[0067] (1) The distance between the receiving card 122 and the at least one display panel 123 is detected through the first wireless communication module 124a and the at least one second wireless communication module 124b.

[0068] In the present application, multiple implementations may be used to determine the distance between the receiving card 122 and the at least one display panel 123. The following is an exemplary embodiment:

[0069] Optionally, the receiving card 122 is further configured to:

[0070] 1) Transmitting a detection signal to at least one second wireless communication module 124b through the first wireless communication module 124a.

[0071] Here, the detection signal may be an image data signal, and the display panel 12 may display a picture according to the image data signal. Thus, when the display panel 12 displays a picture, the distance between the receiving card 122 and the display panel 123 may be detected in real time with high accuracy.

[0072] 2) Obtaining the transmission time of the detection signal fed back by the second wireless communication module 124b.

[0073] Here, the transmission time of the detection signal is the time it takes for the detection signal to be transmitted from the first wireless communication module 124a to the second wireless communication module 124b.

[0074] 3) Determine the distance between the receiving card 122 and the at least one display panel 123 based on the transmission time.

[0075] Based on the propagation speed and acceleration principle of electromagnetic waves, the transmission time can be converted into the distance data from the first wireless communication module 124a to the second wireless communication module 124b, and the transmission time is positively correlated with the distance between the first wireless communication module 124a and the second wireless communication module 124b. Since the first wireless communication module 124a and the receiving card 122 are plugged into the same signal access circuit board, and the second wireless communication module 124b is installed on the back of the display panel 123, the distance between the receiving card 122 and at least one display panel 123 can be approximated to the distance between the first wireless communication module 124a and the second wireless communication module 124b.

[0076] In addition, the receiving card 122 can also determine the distance between the receiving card 122 and the display panel 123 by acquiring the signal strength of the detection signal fed back by the second wireless communication module 124 b , and the signal strength is negatively correlated with the distance.

[0077] (2) After determining that the distance between the receiving card 122 and the at least one display panel 123 is greater than a preset value, interrupting the wireless communication connection with the at least one display panel 123 and generating a first interrupt signal.

[0078] In the installed display module 12, the distance between the first wireless communication module 124a and the second wireless communication module 124b is constant, and the preset value can be a value determined based on the constant distance. Exemplarily, the preset value can be the same as the constant distance, or the preset value can be slightly larger than the constant distance to accommodate the distance measurement error. In this way, when the measured distance is greater than the preset value, it can be explained that the box 121 is opened or the display panel 123 is removed, and there is a safety risk. At this time, the receiving card 122 can not only interrupt the display panel 123 in the display module 12 where it is located to display the video, but also generate a first interrupt signal so that the control component 11 controls other display modules 12 not to display the video.

[0079] In addition, since there are errors in measuring the distance through the wireless communication module, for example, when the actual distance has not changed but the test distance has fluctuated, the embodiment of the present application can also determine that the display module 12 is turned on when there is a large fluctuation in the test distance, thereby interrupting the wireless communication connection and generating a first interrupt signal, thereby improving the detection accuracy.

[0080] (3) Send a first interrupt signal to the control component 11.

[0081] The control component 11 can interrupt the video signal in time in response to the first interrupt signal, so that the multiple display modules 12 all stop displaying, thereby improving the safety of the display screen.

[0082] The embodiment of the present application can interrupt the video signal in a variety of implementations, and two exemplary embodiments are described below:

[0083] In the first embodiment, please refer to Figure 4 , Figure 4 1 is a structural diagram of another display screen provided in an embodiment of the present application, wherein the display screen 10 comprises: a control component 11 and a plurality of display modules 12. The control component 11 comprises: a sending card 111, which is communicatively connected to a server 20 and electrically connected to a receiving card 122 in each display module 12.

[0084] Among them, the server 20 is used to send the decrypted video source to the sending card 111. In order to prevent piracy, the video source of the movie to be played is generally encrypted. The server 20 stores the video source and key of the movie to be played. Then the server 20 can decrypt the video source through the key and send the decrypted video source to the sending card 111. In the present application, the server 20 and the sending card 111 can be both set in a backpack box located on the back of the display module 12, so that the sending card 111 communicates with the server 20 and improves the stability of the video source after transmission decryption, but the position of the server 20 provided in the embodiment of the present application is not limited to this and can be flexibly set.

[0085] The sending card 111 is configured as follows:

[0086] (1) Sending corresponding video signals to each receiving card 122 based on the decrypted video source.

[0087] The sending card 111 is used to convert the input signal (decrypted video source) into a signal (video signal) suitable for display by the display module 12, and send the video signal to the receiving card 122 through the transmission line. Exemplarily, the sending card 111 can have a built-in image processor and color management system to process and adjust the input signal to ensure high fidelity and stability of image quality.

[0088] Since the display screen 10 may include a plurality of display modules 12 spliced ​​together, each display module 12 needs to receive a corresponding video signal to display normally, so the sending card 111 is also used to split the input signal and transmit it to the receiving card 122 of each display module 12 based on the splicing method of the plurality of display modules 12, so as to realize the complete display of the image.

[0089] (2) In response to receiving the first interrupt signal, interrupting the sending of the corresponding video signal to each receiving card 122 .

[0090] The first interrupt signal generated by the receiving card 122 can be directly transmitted to the sending card 111, and the sending card 111 can respond to the first interrupt signal in time and interrupt the video signal sent to the receiving card 122, so that each display module 12 does not display, thereby achieving the effect of preventing piracy. Therefore, in this implementation, the transmission process from the sending card 111 to multiple receiving cards 122 is interrupted, so that the sending card 111 responds to the first interrupt signal more sensitively and can interrupt the transmission of the video signal in time when it is detected that the display module 12 is turned on.

[0091] In the second embodiment, please refer to Figure 5 , Figure 5 It is a structural schematic diagram of another display screen provided in an embodiment of the present application, wherein the display screen 10 comprises: a control component 11 and a plurality of display modules 12. The control component 11 comprises: a sending card 111 and a security module 122, wherein the security module 122 is communicatively connected to the server 20 and electrically connected to the receiving card 122 in each display module 12.

[0092] In the present application, the security module 112 can also be set in the backpack box to facilitate the communication connection between the security module 112 and the server 20 and improve the stability of sending the second interrupt signal, but the position of the security module 122 provided in the embodiment of the present application is not limited to this and can be flexibly set.

[0093] The security module 122 is configured to:

[0094] In response to receiving the first interrupt signal, a second interrupt signal is sent to the server 20 , where the second interrupt signal is used to instruct the server 20 to interrupt sending the decrypted video source to the sending card 111 .

[0095] Since the sending card 111 cannot directly control the server 20 to interrupt the transmission, the security module 122 can be set to send a second interrupt signal to the server 20. In response to the second interrupt signal, the server 20 can stop sending the decrypted video source to the sending card 111, or make each display module 12 not display. Therefore, in this implementation, the transmission process from the server 20 to the sending card 111 is interrupted, so that the relevant personnel can be prevented from intercepting the video source from the data source, and the security of the display screen is further improved.

[0096] In addition, the embodiment of the present application can also use the above two implementation methods at the same time. When it is detected that the box 121 is opened, the transmission process from the server 20 to the sending card 111 is interrupted, and the transmission process from the sending card 111 to the receiving card 122 is also interrupted, thereby improving the security of each transmission stage.

[0097] Furthermore, the first interrupt signal generated by the receiving card 122 may not be directly transmitted to the sending card 111, but may be transferred through the security module 112. This allows the video signal and the first interrupt signal to be two independent transmission channels. This not only avoids interference with the transmission process of the video signal between the receiving card 122 and the sending card 111, but also enables the simultaneous transmission of the video signal and the first interrupt signal, thereby improving the response speed.

[0098] The present application also provides another display screen, please refer to Figure 6 , Figure 6 It is a structural schematic diagram of another display screen provided in an embodiment of the present application, wherein the display screen 10 comprises: a control component 11, a plurality of display modules 12 and a power supply component 13. The control component 11 comprises: a sending card 111 and a security module 122, wherein the security module 122 is communicatively connected to the server 20 and electrically connected to the receiving card 122 in each display module 12.

[0099] The power supply component 13 is used to supply power to the control component 11 and the server 20. The server 20 includes: a processing unit 21, a storage unit 22 and a plurality of interfaces 23, the processing unit 21 may have an image processing function, the storage unit 22 may be a hard disk drive (HDD) board, and the plurality of interfaces 23 may include: a first low-voltage differential signal interface 231 (Low-Voltage Differential Signaling, LVDS), a screen management module network port 232, a universal serial bus interface 233 (Universal Serial Bus, USB), an external serial ATA interface 234 (External Serial Advanced Technology Attachment, eSATA), an audio input interface 235 (Audio) and a high-definition multimedia interface 236 (High Definition Multimedia Interface, HDMI).

[0100] The sending card 111 includes: a second low voltage differential signal interface 1111 and multiple network ports 1112. The first low voltage differential signal interface 231 is electrically connected to the second low voltage differential signal interface 1111, which can realize the transmission of the decrypted video source. One of the multiple network ports 1112 is electrically connected to the screen management module network port 232, which can realize the transmission of the broadcast control signal. The other network ports 1112 in the multiple network ports 1112 are respectively electrically connected to the multiple receiving cards 122, which can realize the transmission of the video signal. The security module 112 is electrically connected to the first low voltage differential signal interface 231, which can realize the transmission of the second interrupt signal.

[0101] In summary, the embodiment of the present application provides a display screen, wherein a receiving card and at least one display panel transmit signals through a wireless connection, so that the display module can realize a display function. When the wireless communication connection between the receiving card and the display panel is interrupted, the risk of the display module being opened is relatively high. At this time, the receiving card can generate a first interrupt signal and send the first interrupt signal to the control component in real time, so that the control component can interrupt the video signal in time in response to the first interrupt signal, so as to achieve the effect that multiple display modules all stop displaying videos, thereby improving the safety of the display screen.

[0102] In a second aspect, an embodiment of the present application provides a method for safely controlling a display screen, which is used for a control component in a display screen provided in any of the above embodiments, and the display screen also includes: a plurality of display modules. The display module includes: a housing, a receiving card installed in the housing, and at least one display panel, and the receiving card is wirelessly connected to at least one display panel. The control component is electrically connected to the receiving card in each display module, and is used to send a corresponding video signal to each receiving card. The method includes:

[0103] In response to receiving a first interrupt signal sent by the receiving card, sending the corresponding video signal to each receiving card is interrupted, and the first interrupt signal is a signal generated by the receiving card after determining that the wireless communication connection between the receiving card and at least one display panel is interrupted.

[0104] In summary, the embodiment of the present application provides a method for safely controlling a display screen, wherein a receiving card and at least one display panel transmit signals through a wireless connection, so that a display module can realize a display function. When the wireless communication connection between the receiving card and the display panel is interrupted, the risk of the display module being opened is relatively high. At this time, the receiving card can generate a first interrupt signal and send the first interrupt signal to the control component in real time, so that the control component can interrupt the video signal in time in response to the first interrupt signal, so as to achieve the effect that multiple display modules all stop displaying videos, thereby improving the safety of the display screen.

[0105] This application embodiment provides another security control method for a display screen, please refer to Figure 7 , Figure 7 It is a flowchart of another security control method for a display screen provided by an embodiment of the present application. The method is used for a control component in a display screen provided by any of the above embodiments. The control component is connected to a server for communication. The server is used to send a decrypted video source to a sending card. The display module also includes: a first wireless communication module and at least one second wireless communication module. The first wireless communication module is electrically connected to a receiving card. The at least one second wireless communication module corresponds to at least one display panel, and the second wireless communication module is electrically connected to the corresponding display panel. The method includes:

[0106] Step 701: Control the receiving card to detect the distance between the receiving card and at least one display panel through a first wireless communication module and at least one second wireless communication module.

[0107] In the present application, multiple implementations may be used to determine the distance between the receiving card and at least one display panel. In an exemplary embodiment, step 701 may include the following multiple sub-steps:

[0108] Sub-step 7011: Control the receiving card to transmit a detection signal to at least one second wireless communication module through the first wireless communication module.

[0109] The detection signal may be an image data signal, and the display panel may display a picture according to the image data signal. Thus, when the display panel displays a picture, the distance between the receiving card and the display panel may be detected in real time with high accuracy.

[0110] Sub-step 7012: controlling the receiving card to obtain the transmission time of the detection signal fed back by the second wireless communication module.

[0111] The transmission time of the detection signal is the time it takes for the detection signal to travel from the first wireless communication module to the second wireless communication module.

[0112] Sub-step 7013: determining a distance between the receiving card and at least one display panel based on the transmission time.

[0113] Based on the propagation speed and acceleration principle of electromagnetic waves, the transmission time can be converted into the distance data from the first wireless communication module to the second wireless communication module, and the transmission time is positively correlated with the distance between the first wireless communication module and the second wireless communication module. Since the first wireless communication module and the receiving card are plugged into the same signal access circuit board, and the second wireless communication module is installed on the back of the display panel, the distance between the receiving card and at least one display panel can be approximated to the distance between the first wireless communication module and the second wireless communication module.

[0114] In addition, the receiving card can also determine the distance between the receiving card and the display panel by acquiring the signal strength of the detection signal fed back by the second wireless communication module, and the signal strength is negatively correlated with the distance.

[0115] Step 702: After determining that the distance between the receiving card and the at least one display panel is greater than a preset value, the receiving card is controlled to interrupt the wireless communication connection with the at least one display panel and generate a first interrupt signal.

[0116] When the measured distance is greater than the preset value, it means that the box is opened or the display panel is removed, and there is a safety risk. At this time, the receiving card can not only interrupt the display panel in the display module where it is located to display the video, but also generate a first interrupt signal.

[0117] Step 703: Receive a first interrupt signal sent by the receiving card.

[0118] The control component can interrupt the video signal in time in response to the first interrupt signal, so that the multiple display modules all stop displaying, thereby improving the safety of the display screen.

[0119] Step 704: in response to receiving the first interrupt signal sent by the receiving card, interrupt the sending of the corresponding video signal to each receiving card.

[0120] The first interrupt signal generated by the receiving card can be directly transmitted to the control component, and the control component can respond to the first interrupt signal in time and interrupt the video signal sent to the receiving card, so that each display module does not display, thereby achieving safety control.

[0121] Step 705: In response to receiving the first interrupt signal, send a second interrupt signal to the server.

[0122] The second interrupt signal is used to instruct the server to interrupt sending the decrypted video source to the sending card. In response to the second interrupt signal, the server can stop sending the decrypted video source to the sending card, and can also prevent relevant personnel from intercepting the video source, further improving the security of the display screen.

[0123] In summary, the embodiment of the present application provides a method for safely controlling a display screen, wherein a receiving card and at least one display panel transmit signals through a wireless connection, so that a display module can realize a display function. When the wireless communication connection between the receiving card and the display panel is interrupted, the risk of the display module being opened is relatively high. At this time, the receiving card can generate a first interrupt signal and send the first interrupt signal to the control component in real time, so that the control component can interrupt the video signal in time in response to the first interrupt signal, so as to achieve the effect that multiple display modules all stop displaying videos, thereby improving the safety of the display screen.

[0124] In a third aspect, an electronic device is provided, comprising a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, at least one program, a code set or an instruction set is loaded and executed by the processor to implement any of the above methods.

[0125] In a fourth aspect, a computer storage medium is provided, in which at least one instruction, at least one program, code set or instruction set is stored, and the at least one instruction, at least one program, code set or instruction set is loaded and executed by a control component to implement any of the above methods.

[0126] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It is also understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it is understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it may be the only layer between the two layers or two elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0127] In the present application, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0128] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0129] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0130] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

[0131] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A display screen, characterized in that: The display screen includes: a control component and a plurality of display modules; the display module includes: a box, and a receiving card and at least one display panel installed in the box, the receiving card being wirelessly connected to the at least one display panel; the control component is electrically connected to the receiving cards in each of the display modules, and is used to send a corresponding video signal to each of the receiving cards; The control component is configured to: In response to receiving a first interrupt signal sent by the receiving card, interrupting sending the corresponding video signal to each receiving card, wherein the first interrupt signal is a signal generated by the receiving card after determining that the wireless communication connection between the receiving card and the at least one display panel is interrupted.

2. The display screen according to claim 1, characterized in that: The display module further includes: a first wireless communication module and at least one second wireless communication module, wherein the first wireless communication module is electrically connected to the receiving card, the at least one second wireless communication module corresponds to the at least one display panel, and the second wireless communication module is electrically connected to the corresponding display panel; the receiving card is configured as follows: Detecting the distance between the receiving card and the at least one display panel through the first wireless communication module and the at least one second wireless communication module; After determining that the distance between the receiving card and the at least one display panel is greater than a preset value, interrupting the wireless communication connection with the at least one display panel and generating the first interrupt signal; The first interrupt signal is sent to the control component.

3. The display screen according to claim 2, characterized in that: The receiving card is also configured as: Transmitting a detection signal to the at least one second wireless communication module through the first wireless communication module; Acquire the transmission time of the detection signal fed back by the second wireless communication module; The distance between the receiving card and the at least one display panel is determined based on the transmission time.

4. The display screen according to claim 1, characterized in that: The control component includes: a sending card, the sending card is communicatively connected to the server and electrically connected to the receiving cards in each of the display modules, and the server is used to send the decrypted video source to the sending card; The sending card is configured as: Sending the corresponding video signal to each receiving card based on the decrypted video source; In response to receiving the first interrupt signal, the sending of the corresponding video signal to each of the receiving cards is interrupted.

5. The display screen according to claim 4, characterized in that: The control component further includes: a security module, the security module is communicatively connected to the server and electrically connected to the receiving cards in each of the display modules; The security module is configured to: In response to receiving the first interrupt signal, a second interrupt signal is sent to the server, wherein the second interrupt signal is used to instruct the server to interrupt sending the decrypted video source to the sending card.

6. The display screen according to any one of claims 1 to 5, characterized in that: The display screen is a movie display screen.

7. A method for controlling the safety of a display screen, characterized in that: The method is used for a control component in a display screen as claimed in any one of claims 1 to 6, wherein the display screen further comprises: a plurality of display modules; the display module comprises: a housing, and a receiving card and at least one display panel installed in the housing, wherein the receiving card is wirelessly connected to the at least one display panel; the control component is electrically connected to the receiving cards in each of the display modules, and is used to send a corresponding video signal to each of the receiving cards; the method comprises: In response to receiving a first interrupt signal sent by the receiving card, interrupting sending the corresponding video signal to each receiving card, wherein the first interrupt signal is a signal generated by the receiving card after determining that the wireless communication connection between the receiving card and the at least one display panel is interrupted.

8. The method according to claim 7, characterized in that The display module further includes: a first wireless communication module and at least one second wireless communication module, the first wireless communication module is electrically connected to the receiving card, the at least one second wireless communication module corresponds to the at least one display panel, and the second wireless communication module is electrically connected to the corresponding display panel; the method further includes: Controlling the receiving card to detect the distance between the receiving card and the at least one display panel through the first wireless communication module and the at least one second wireless communication module; Controlling the receiving card to interrupt the wireless communication connection with the at least one display panel and generate the first interrupt signal after determining that the distance between the receiving card and the at least one display panel is greater than a preset value; Receive a first interrupt signal sent by the receiving card.

9. The method according to claim 7, characterized in that: The control component is in communication with the server, and the server is used to send the decrypted video source to the sending card; the method further includes: In response to receiving the first interrupt signal, a second interrupt signal is sent to the server, wherein the second interrupt signal is used to instruct the server to interrupt sending the decrypted video source to the sending card.

10. An electronic device, characterized in that: The electronic device includes a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement the method according to any one of claims 7 to 9.

11. A computer storage medium, characterized in that: The computer storage medium stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the control component to implement the method according to any one of claims 7 to 9.

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