Display device with data protection mechanism

Abstract

This utility model discloses a display device with a data protection mechanism. The display device includes a display module, a frame, a server chassis, and a control system. The display module is fixed to the front end of the frame. A HUB board and a data receiving card are located inside the frame. A system security sub-board is located inside the server chassis. The display module is electrically connected to the HUB board via a signal connector. The HUB board is electrically connected to the data receiving card and the system security sub-board. The server chassis is fixed to the frame. The system security sub-board is electrically connected to the data receiving card via a data cable and is also electrically connected to the control system. If any display module is removed, the system security sub-board will send a signal to the control system to stop playback and data output. This protection mechanism enhances the protection level, increases the difficulty of intrusion, effectively protects the data transmission of the display device, and meets the requirements of digital rights management (DRM).

Description

Technical Field

[0001] This utility model belongs to the field of display devices, and in particular relates to a display device with a data protection mechanism. Background Technology

[0002] A video wall is composed of multiple panel modules. In existing video projection systems based on video walls, the video signal processor receives the source signal from the server chassis and, according to the number, size, and position of the panel modules, divides the video signal of the overall image into multiple video signals corresponding to the module panels. The video signals of the divided images are then sent (or split) to the corresponding panel modules, and each panel module displays the divided images, thereby enabling the video wall to display the overall image.

[0003] For copyrighted videos such as movies and advertisements, existing video projection systems lack protective mechanisms for their components, making it easy for video signals to be acquired from multiple locations, which can lead to theft or tampering of the video signals. Summary of the Invention

[0004] The purpose of this invention is to provide a display device with a data protection mechanism, which can solve the problem that video signals are easily stolen or tampered with in existing splicing screen video projection systems.

[0005] This utility model is implemented as follows: a display device with a data protection mechanism includes a display module, a frame, a server chassis, and a control system. The server chassis is used to transmit data to the display module. The frame has an internal cavity with an opening at the front end. The display module is fixedly connected to the frame and covers the opening. A HUB board and a data receiving card are provided inside the cavity. A system security sub-board is provided inside the server chassis. The HUB board is used to transmit and segment signals. The display module is electrically connected to the HUB board through a signal connector. The HUB board is electrically connected to the data receiving card and the system security sub-board. A window is reserved on the rear or side of the frame, the server chassis is fixed on the frame, and the system security sub-board in the server chassis is electrically connected to the data receiving card through a data cable passing through the window; The system safety subboard is electrically connected to the control system. When any display module is removed or moved, the control system can stop video playback and data output.

[0006] In some other implementations, the display device further includes a hollow flange cover, which is fixedly embedded in the window. One end of the data cable is connected to the system security subboard in the server chassis, and the other end passes through the flange cover and connects to the HUB board.

[0007] In some other implementations, the flange cover has a connection hole at one end near the cavity, and the flange cover is fixed to the frame by inserting screws into the connection hole.

[0008] In some other implementations, the cavity is further provided with an inner door cover, the signal connector is inserted through the inner door cover, the inner door cover is locked in the cavity by a locking member, and covers the HUB board and data receiving card.

[0009] In some other implementations, a triggering mechanism is also provided inside the cavity. When the inner door cover is touched, the triggering mechanism can be triggered to generate a circuit breaker signal to stop the output data.

[0010] In some other implementations, the frame is also provided with a cable protection cover, which is located between two adjacent inner door covers. The two adjacent HUB boards are connected by a network cable, and the cable protection cover covers the network cable.

[0011] In some other implementations, the inner door cover has a cable inlet on its side, and the end of the cable guard extends into the cable inlet.

[0012] In some other implementations, the bottom wall of the cavity is provided with a slot corresponding to the position of the inner door cover and the wire protection cover, and the bottom ends of the wire protection cover and the inner door cover are embedded in the slot.

[0013] In some other implementations, the server chassis is mounted on the rear end face of the frame via a sliding module, and the server chassis can slide relative to the frame.

[0014] In some other implementations, the sliding module includes a fixed guide rail and a movable guide rail. The fixed guide rail is fixedly installed on the rear end face of the frame, and the movable guide rail is fixedly installed on the front end face of the server chassis. The server chassis can slide relative to the frame and protrude from one side of the frame.

[0015] In some other implementations, the length directions of the fixed guide rail and the movable guide rail are parallel to the horizontal direction, the inner end of the fixed guide rail is close to the middle position of the rear end face of the frame, and its outer end is close to the edge position of the rear end face of the frame.

[0016] In some other implementations, a limit stop is provided at the inner end of the fixed guide rail. When the server chassis is pushed into place from the outside to the inside, the limit stop can prevent the server chassis from moving further.

[0017] In some other implementations, the front of the server chassis corresponds to the side of the frame, the server chassis houses a back-end processor and a front-end IMB server, the mounting and dismounting port of the front-end IMB server corresponds to the front of the server chassis, and the outer side of the front of the server chassis is provided with a front panel protective cover, which is equipped with a lock.

[0018] In some other implementations, a trigger switch is provided inside the server chassis at the position corresponding to the lock, and the trigger switch is electrically connected to the control system; when the front panel protective cover is removed, the trigger switch can be activated, thereby the control system controls the server chassis to stop transmitting data to the display module.

[0019] Compared with the prior art, the advantages of this utility model are as follows: This utility model provides a display device with a data protection mechanism, including a display module, a frame, a server chassis, and a control system. The display module is fixed to the front end of the frame, and a HUB board and a data receiving card are located inside the frame. A system security sub-board is located inside the server chassis. The display module is electrically connected to the HUB board via a signal connector. The HUB board is electrically connected to the data receiving card and the system security sub-board. A window is provided on the frame for data cables to pass through. The server chassis is fixed to the frame. The system security sub-board is electrically connected to the data receiving card inside the frame via a data cable and is also electrically connected to the control system. If any display module is removed, the system security sub-board will send a signal to the control system. The control system will then control the display module to stop playing and control the server chassis to stop outputting data. Simultaneously, the control system will record the trigger event, which must be restored before system pairing can be performed. Through this protection mechanism design, the protection level is strengthened, the intrusion difficulty is increased, and the data transmission of the display device is effectively protected, meeting the requirements of digital rights management (DRM). Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a display device with a data protection mechanism provided in an embodiment of this utility model; Figure 2 yes Figure 1 The diagram shown is an exploded view of the device. Figure 3 yes Figure 1 The diagram shows a longitudinal sectional view of the display device. Figure 4 yes Figure 1 The diagram shows the internal structure of the display device's frame. Figure 5 yes Figure 1 The diagram shows a structural schematic of a display device frame with a flange protective cover installed at the window. Figure 6 yes Figure 1 The diagram shows an exploded view of the display device from another angle.

[0021] Explanation of markings in the diagram: Display module 1, frame 2, first window 21, first card slot 22, second card slot 23, server chassis 3, second window 31, HUB board 4, data receiving card 5, signal connector 6, data cable 7, flange protection cover 8, screw 9, inner door cover a, locking piece b, trigger mechanism c, cable protection cover d, fixed guide rail e, movable guide rail f, roller g, limit stop h, front panel protection i, lock j, trigger switch k. Detailed Implementation

[0022] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0024] Please see Figures 1 to 3 This illustration shows a display device with a data protection mechanism provided in this embodiment, including a display module 1, a frame 2, a server chassis 3, and a control system. The frame 2 has an internal cavity with an opening at the front end. The display module 1 is fixedly connected to the frame 2 and the opening is sealed. In this embodiment, multiple panel-shaped display modules 1 are assembled together to form a screen located at the front end of the display device.

[0025] Please see Figure 4 The cavity houses a HUB board 4 and a data receiving card 5. The server chassis 3 contains a system security sub-board (not shown in the figure). The display module 1 is electrically connected to the HUB board 4 via a signal connector 6. The HUB board 4 is electrically connected to the data receiving card 4 and the system security sub-board. A first window 21 for data cables 7 to pass through is provided on the rear panel of the frame 2. The server chassis 3 is fixed to the frame 2 and the first window 21 is covered. The system security sub-board in the server chassis 3 is electrically connected to the data receiving card 5 via data cables 7, and is electrically connected to the control system.

[0026] It should be noted that in this embodiment, the first window 21 is located on the rear end face of the frame 2, and correspondingly, the server chassis 3 is fixed to the rear end face of the frame 2. In other embodiments, the first window 21 may also be located on the outer side face of the frame 2, and correspondingly, the server chassis 3 is fixed to the outer side face of the frame 2.

[0027] The data in the server chassis 3 is transmitted to the data receiving card 5 inside the frame 2 via the data cable 7. The data receiving card 5 then transmits the data to the HUB board 4. The HUB board 4 is used to transmit and segment signals. The HUB board 4 transmits the segmented data to each display module 1 via the signal connector 6.

[0028] When any display module 1 is removed or moved, the system security sub-board is triggered. The system security sub-board transmits a signal to the control system, which in turn controls the display module 1 to play video and controls the server chassis 3 to stop outputting data.

[0029] Please see Figure 5 The display device also includes a hollow flange cover 8. Specifically, the flange cover 8 has a square tube structure, the first window 21 is rectangular, the flange cover 8 is fixedly embedded in the first window 21, one end of the data cable 7 is connected to the system security subboard in the server chassis 3, and the other end passes through the flange cover 8 and is connected to the HUB board 4.

[0030] The flange cover 8 is embedded in the server chassis 3 at one end near the server chassis 3, and a flange extends outward at the other end near the cavity. A connection hole is provided on the flange. The flange cover 8 is fixed to the frame 2 by inserting screws 9 into the connection hole. Therefore, the flange cover 8 can only be removed from the inside of the frame 2.

[0031] To further strengthen the protection mechanism, please refer again. Figures 2 to 4The cavity is also equipped with an inner door cover a, and the signal connector 6 passes through the inner door cover a. The inner door cover a is locked in the cavity by the locking piece b, and covers the HUB board 4, the data receiving card 5 and the system security sub-board. Therefore, under the protection of the inner door cover a, it is necessary to remove the inner door cover a in order to access the HUB board 4 and the data receiving card 5.

[0032] A trigger mechanism c is also provided within the cavity. Trigger mechanism c is electrically connected to the control system. When the inner door cover a is touched, trigger mechanism c generates an open-circuit signal and sends it to the control system. The control system then controls the display module 1 to play video and stops the server chassis 3 from outputting data. In this embodiment, the trigger mechanism c is a microswitch. This microswitch is fixed inside the cavity and abuts against the inner wall of the inner door cover a. When the inner door cover a moves, the microswitch detects the displacement signal and sends a signal to the control system. It should be noted that in other embodiments, photoelectric sensors, displacement sensors, etc., can also be used as the trigger mechanism.

[0033] The frame 2 also includes a cable cover d, located between two adjacent inner door covers a. The two adjacent HUB boards 4 are connected via a network cable, and the cable cover d covers the network cable. An inlet is located on the side of the inner door cover a, and the end of the cable cover d extends into the inlet. The shape and size of the cable cover d match the shape and size of the inlet. This structural design prevents data leakage at the network cable.

[0034] Furthermore, the bottom wall of the cavity is provided with a first slot 22 corresponding to the position of the inner door cover a, and the edge of the inner door cover a is embedded in the first slot 22. The bottom wall of the cavity is provided with a second slot 23 corresponding to the position of the cable protection cover d, and the edge of the cable protection cover d is embedded in the second slot 23. Through the above structural design, the bottom ends of the inner door cover a and the cable protection cover d can be protected to prevent the inner door cover a and the cable protection cover d from being pried up.

[0035] Furthermore, since the server chassis 3 is fixed behind the screen, maintenance requires operators to go behind the screen, where the limited space makes maintenance inconvenient. To address this issue, this embodiment includes a sliding module between the server chassis 3 and the rear end face of the frame 2. Specifically, the sliding module includes a fixed guide rail e and a movable guide rail f. The fixed guide rail e is fixedly installed on the rear end face of the frame 2, and the movable guide rail f is fixedly installed on the front end face of the server chassis 3. The length directions of both the fixed guide rail e and the movable guide rail f are parallel to the horizontal direction. The inner end of the fixed guide rail e is near the middle of the rear end face of the frame 2, and its outer end is near the edge of the rear end face of the frame 2. The server chassis 3 can slide relative to the frame 2 and protrude from the side of the frame 2.

[0036] To reduce the force required to push or pull the server chassis 3, multiple rollers g are installed on one side of the movable guide rail f. The fixed guide rail e has a groove extending along its length inside. The multiple rollers g are embedded in the groove. When pushing or pulling the server chassis 3, the rollers g can roll along the groove. Since it is a rolling contact, the force required to push or pull is small.

[0037] Furthermore, limit blocks h are provided at both ends of the fixed guide rail e. When the server chassis 3 is pushed from the outside to the inside until the roller g abuts against the limit block h, the limit block h can prevent the server chassis 3 from moving further, thereby playing the role of limiting and positioning the server chassis 3.

[0038] With the above design, operators can push and pull the server chassis 3 to offset it from the frame 2 in the left and right directions. This allows operators to perform maintenance operations on the server chassis 3 from the front or side of the display module 1 without disassembling the display module 1, greatly improving the convenience of maintenance.

[0039] It should be noted that the above only illustrates the left-right sliding of the frame 2 and the server chassis 3. In other embodiments, the frame 2 and the server chassis 3 can also be designed to slide up-down.

[0040] For further details, please refer to the following: Figure 2 The server chassis 3 has a second window 31 on its side near the frame 2. One end of the flange protective cover 8 extends out of the rear end of the frame 2 through the first window 21. The data cable 7 inside the server chassis 3 passes through the flange protective cover 8 and then through the second window 31 to connect to the server chassis 3. When the server chassis 3 is pushed or pulled into place, the flange protective cover 8 is inserted into the second window 31 of the server chassis 3 in front of the display module 1. This serves as a secondary limit for the server chassis 3 and protects the data cable 7 from external damage. Since the flange protective cover 8 is located outside the data cable 7, it helps to ensure data security. If the flange protective cover 8 needs to be removed, because the connecting end of the flange protective cover 8 is built into the frame 2, the front display module 1 and other modules must first be removed, and the inner door cover a must be opened. At this point, the signal transmission has been disconnected, and it is permissible for the data cable 7 to be exposed without data leakage.

[0041] Furthermore, the front of the server chassis 3 corresponds to the side of the frame 2. The server chassis 3 houses a back-end processor and a front-end IMB server. The mounting and disassembly port of the front-end IMB server corresponds to the front of the server chassis. When the front-end IMB server malfunctions and needs maintenance, it can be removed from the front without disassembling the entire server chassis 3.

[0042] Please see Figure 6The server chassis 3 has a front panel protective cover i on its outer front side, and the front panel protective cover i is equipped with a lock j. Inside the server chassis 3, corresponding to the position of the lock j, there is a trigger switch k, which is electrically connected to the control system. When the front panel protective cover i is removed, the trigger switch k is activated, thereby controlling the control system to stop the server chassis 3 from transmitting data to the display module 1, thus effectively preventing data leakage and ensuring data security.

[0043] When the back-end processor requires maintenance, first remove the display module 1. The system will then disconnect, and the flange protective cover 8 can be pulled out from the front of the display module. At this time, the front operation function of the server chassis 3 is not affected, and maintenance can be performed directly. This design ensures both operational safety (system disconnection avoids accidental operation) and maintenance convenience (front operation does not require complicated pre-operation steps).

[0044] This embodiment utilizes the limited space around the rear of the display module 1 to propose an innovative solution, allowing the server chassis 3 to be flexibly placed on any side of the display module 1, either left, right, top, or bottom, without removing the frame 2. The sliding module design enables maintenance operations on the side of the display module 1, making operation convenient. At the same time, the flange protective cover 8 and the front panel protective cover i effectively protect the data and the server chassis 3.

[0045] In summary, this embodiment establishes a three-layer data protection mechanism on the display device: The first layer of protection is the exposed display module 1. Each frame 2 has 12 display modules 1 installed on it. The display modules 1 are fixed to the frame 2 by magnets and connected to the HUB board 4 inside the frame 2 through signal connectors 6. The HUB board 4 is connected to the system safety sub-board. If any display module 1 is removed, it will trigger the system safety sub-board. The system safety sub-board sends a signal to the control system, which stops video playback and data output. The control system will record the trigger event, and system pairing can only be performed after the event is restored.

[0046] The second layer of protection is the inner cover a inside the frame 2. Inner cover a protects all data cables 7, the HUB board 4, and the data receiving card 5. Even if the display module 1 is removed, the HUB board 4, data receiving card 5, and data cables 7 cannot be accessed. The inner cover a is fixed to the frame 2 with a lock and a microswitch. If the lock is opened, the TAMPER (hardware anti-tampering design) will be triggered. To access the HUB board 4, data receiving card 5, and data cables 7, all display modules 1 must be removed first, and then the inner cover a must be opened after unlocking.

[0047] The third layer of protection is the connection structure between the server chassis 3 and the flange protective cover 8. The server chassis 3 is a key device of the cinema product, which outputs the source signal. The data SAS line from the server chassis 3 to the frame 2 is protected by the flange protective cover 8. The flange protective cover 8 connects the outlet of the server chassis 3 and the inlet of the frame 2. If you want to access and operate the server chassis 3, you need to remove all the display modules 1, open the inner door cover a, and then remove the flange protective cover 8 from the inside of the frame 2 before you can remove the server chassis 3 from the frame 2.

[0048] As can be seen, the above multi-layered protection mechanism design increases the number of intrusion steps and the difficulty, thereby improving the level of protection.

[0049] This embodiment also provides a recovery method after the data protection mechanism of the above-mentioned display device is triggered. Depending on the triggered protection layer, the recovery method includes any one of the following three: Once the first layer of protection is triggered, the recovery steps include: Reinstall the removed display module 1 back into the front of the frame 2. Manually press the button to cancel the triggered event. Then pair and resume playback; When the second layer of protection is triggered, the recovery steps include: Install the inner door cover a back into the frame 2 and lock it in place using the locking piece b. Reinstall the removed display module 1 back into the front of the frame 2. Manually press the button to cancel the triggered event. Then pair and resume playback; When the third layer of protection is triggered, the recovery steps include: Install server chassis 3 back onto frame 2. Install the inner door cover a back into the frame 2 and lock it in place using the locking piece b. Reinstall the removed display module 1 back into the front of the frame 2. Manually press the button to cancel the triggered event. Then pair and resume playback.

[0050] In summary, this embodiment solves the problem of video signal theft or tampering in splicing screen video projection systems by setting up a multi-layer protection mechanism on the display device, effectively protecting the data transmission of the display device, achieving a high level of security, and meeting the requirements of digital rights protection.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A display device with a data protection mechanism, comprising a display module, a frame, a server chassis, and a control system, wherein the server chassis is used to transmit data to the display module, the frame has an internal cavity with an opening at the front end of the cavity, and the display module is fixedly connected to the frame and seals the opening; characterized in that, The cavity contains a HUB board and a data receiving card, and the server chassis contains a system security sub-board. The HUB board is used to transmit and segment signals. The display module is electrically connected to the HUB board through a signal connector. The HUB board is electrically connected to the data receiving card and the system security sub-board. A window is reserved on the rear or side of the frame, the server chassis is fixed on the frame, and the system security sub-board is electrically connected to the data receiving card through a data cable passing through the window. The system safety subboard is electrically connected to the control system. When any display module is removed or moved, the control system can stop video playback and data output.

2. The display device according to claim 1, characterized in that, The display device also includes a hollow flange cover, which is fixedly embedded in the window. One end of the data cable is connected to the system security subboard in the server chassis, and the other end passes through the flange cover and connects to the HUB board.

3. The display device according to claim 2, characterized in that, The flange cover has a connection hole at one end near the cavity, and the flange cover is fixed to the frame by inserting screws into the connection hole.

4. The display device according to claim 1, characterized in that, The cavity is also provided with an inner door cover, the signal connector is inserted through the inner door cover, the inner door cover is locked in the cavity by a locking member, and covers the HUB board and data receiving card.

5. The display device according to claim 4, characterized in that, The cavity is also equipped with a triggering mechanism. When the inner door cover is touched, the triggering mechanism can be triggered to generate a circuit breaker signal to stop the output of data.

6. The display device according to claim 4, characterized in that, The frame is also equipped with a cable protection cover, which is located between two adjacent inner door covers. The two adjacent HUB boards are connected by a network cable, and the cable protection cover covers the network cable.

7. The display device according to claim 6, characterized in that, The inner door cover has a cable inlet on its side, and the end of the cable guard extends into the cable inlet.

8. The display device according to claim 6, characterized in that, The bottom wall of the cavity is provided with a slot corresponding to the position of the inner door cover and the wire protection cover, and the bottom ends of the wire protection cover and the inner door cover are embedded in the slot.

9. The display device according to any one of claims 1 to 8, characterized in that, The server chassis is mounted on the rear end face of the frame via a sliding module, and the server chassis can slide relative to the frame.

10. The display device according to claim 9, characterized in that, The sliding module includes a fixed guide rail and a movable guide rail. The fixed guide rail is fixedly installed on the rear end face of the frame, and the movable guide rail is fixedly installed on the front end face of the server chassis. The server chassis can slide relative to the frame and protrude from one side of the frame.

11. The display device according to claim 10, characterized in that, The length directions of the fixed guide rail and the movable guide rail are parallel to the horizontal direction. The inner end of the fixed guide rail is close to the middle position of the rear end face of the frame, and its outer end is close to the edge position of the rear end face of the frame.

12. The display device according to claim 10, characterized in that, The fixed guide rail is provided with a limit stop at one end on the inner side. When the server chassis is pushed into place from the outside to the inside, the limit stop can prevent the server chassis from moving further.

13. The display device according to claim 9, characterized in that, The front of the server chassis corresponds to the side of the frame. The server chassis houses a back-end processor and a front-end IMB server. The mounting and dismounting port of the front-end IMB server corresponds to the front of the server chassis. The outer side of the front of the server chassis is provided with a front panel protective cover, which is equipped with a lock.

14. The display device according to claim 13, characterized in that, Inside the server chassis, a trigger switch is located at the position corresponding to the lock. The trigger switch is electrically connected to the control system. When the front panel protective cover is removed, the trigger switch is activated, thereby causing the control system to control the server chassis to stop transmitting data to the display module.

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