Display device with data protection mechanism and data protection mechanism recovery method thereof

Abstract

The invention discloses a display device with a data protection mechanism and a recovery method of the data protection mechanism, the display device comprises a display module, a frame body, a server case and a control system, the display module is fixed at the front end of the frame body, a HUB board and a data receiving card are arranged in the frame body, and a system security daughter board is arranged in the server case; the display module is electrically connected with the HUB board through a signal connector, the HUB board is electrically connected with the data receiving card and the system safety daughter board, the server case is fixed on the frame body, the system safety daughter board is electrically connected with the data receiving card through a data line, and the system safety daughter board is electrically connected with the control system. If any display module is taken down, the system security daughter board is triggered to send a signal to the control system so as to stop playing and output data. Through the design of the protection mechanism, the protection level is enhanced, the invasion difficulty level is improved, the data transmission of the display equipment is well protected, and the requirement of digital copyright protection is met.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of display devices, and particularly relates to a display device with a data protection mechanism and a recovery method of the data protection mechanism thereof. BACKGROUND

[0002] The spliced screen is spliced by multiple panel modules. In an existing video projection system based on the spliced screen, after a video signal processor receives a piece source signal input from a server case, the video signal processor splits the video signal of an overall picture according to the number, size and position of the panel modules to obtain multiple video signals of split pictures corresponding to the module panels, and sends the video signals of the split pictures to the corresponding panel modules respectively (or in branches), and each panel module displays a split picture, thereby realizing the display of the overall picture by the spliced screen.

[0003] For some videos with copyrights such as movies and advertisements, the existing video projection system lacks a protection mechanism, and the video signal is easy to be obtained from multiple positions, and the problem of video signal theft or tampering is easy to occur. SUMMARY

[0004] The present application aims to provide a display device with a data protection mechanism and a recovery method of the data protection mechanism thereof, which can solve the problem of video signal theft or tampering in the existing spliced screen video projection system.

[0005] The present application is implemented as follows: a display device with a data protection mechanism includes a display module, a frame, a server case and a control system. The server case is used to deliver data to the display module. The frame has a cavity inside. The front end of the cavity has an opening. The display module is fixedly connected with the frame and covers the opening. A HUB board and a data receiving card are arranged in the cavity. A system security sub-board is arranged in the server case. The HUB board is used to transmit and split signals. The display module is electrically connected with the HUB board through a signal connector. The HUB board is electrically connected with the data receiving card and the system security sub-board.

[0006] A window is reserved on the rear end or side surface of the frame. The server case is fixed on the frame. The system security sub-board in the server case is electrically connected with the data receiving card through a data line penetrating through the window.

[0007] The system security sub-board is electrically connected with the control system. When any display module is removed or moved, the control system can stop video playing and data output.

[0008] In some other implementations, the display device further comprises a hollow flange protection cover fixedly embedded in the window, one end of the data line is connected to a system security sub-board in the server case, and the other end is connected to the HUB board after passing through the flange protection cover.

[0009] In some other implementations, the flange protection cover is provided with a connecting hole near one end of the cavity, and the flange protection cover is fixed on the frame body by screwing into the connecting hole.

[0010] In some other implementations, the cavity is further provided with an inner door cover, the signal plug is arranged on the inner door cover, and the inner door cover is locked in the cavity by a locking member and covers the HUB board and the data receiving card.

[0011] In some other implementations, the cavity is further provided with a triggering mechanism, which is triggered to generate an open circuit signal to stop outputting data when the inner door cover is touched.

[0012] In some other implementations, the frame body is further provided with a wire protection cover, the wire protection cover is located between two adjacent inner door covers, and the two adjacent HUB boards are connected in communication through a network cable, and the wire protection cover covers the network cable.

[0013] In some other implementations, the inner door cover is provided with a wire inlet on the side surface, and the end of the wire protection cover extends into the wire inlet.

[0014] In some other implementations, the bottom wall of the cavity is provided with a clamping groove corresponding to the positions 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 clamping groove.

[0015] In some other implementations, the server case is installed on the rear end surface of the frame body through a sliding module, and the server case can slide relative to the frame body.

[0016] In some other implementations, the sliding module comprises a fixed guide rail and a movable guide rail, the fixed guide rail is fixedly installed on the rear end surface of the frame body, and the movable guide rail is fixedly installed on the front end surface of the server case, the server case can slide relative to the frame body and protrude from one side of the frame body.

[0017] In some other implementations, the length direction of the fixed guide rail and the movable guide rail is parallel to the horizontal direction, the inner side end of the fixed guide rail is close to the middle position of the rear end surface of the frame body, and the outer side end is close to the edge position of the rear end surface of the frame body.

[0018] In some other implementations, the fixed guide rail is provided with a limiting stopper at one end of the inner side, which can prevent the server case from moving continuously when the server case is pushed into position from the outer side to the inner side.

[0019] In some other implementations, the front side of the server case corresponds to the side of the frame body, and the server case is provided with a rear-end processor and a front-end IMB server, and the front-end IMB server is provided with a dismounting opening position corresponding to the front side of the server case, and the front side of the server case is provided with a front panel protection cover, and the front panel protection cover is provided with a lock.

[0020] In some other implementations, the server case is provided with a trigger switch at a position corresponding to the lock inside the server case, and the trigger switch is electrically connected to the control system; when the front panel protection cover is removed, the trigger switch can be activated, and then the control system controls the server case to stop transmitting data to the display module.

[0021] In order to achieve the above-mentioned purposes, the present application also provides a recovery method of the data protection mechanism of the above-mentioned display device, and the protection mechanism comprises a first layer protection, a second layer protection and a third layer protection.

[0022] When the first layer protection is triggered, the recovery steps comprise:

[0023] The dismounted display module is installed back to the front end of the frame body,

[0024] The manual button eliminates the triggering event,

[0025] Then pairing, and resuming playing;

[0026] When the second layer protection is triggered, the recovery steps comprise:

[0027] The inner door cover is installed back to the frame body, and the locking member is locked,

[0028] The dismounted display module is installed back to the front end of the frame body,

[0029] The manual button eliminates the triggering event,

[0030] Then pairing, and resuming playing;

[0031] When the third layer protection is triggered, the recovery steps comprise:

[0032] The server case is installed back to the frame body,

[0033] The inner door cover is installed back to the frame body, and the locking member is locked,

[0034] The dismounted display module is installed back to the front end of the frame body,

[0035] The manual button eliminates the triggering event,

[0036] Then pair, restore playing.

[0037] Compared with the prior art, the present application has the beneficial effects that:

[0038] The display device with data protection mechanism provided by the present application comprises a display module, a frame body, a server case and a control system, the display module is fixed at the front end of the frame body, the frame body is internally provided with a HUB board and a data receiving card, and the server case is internally provided with a system security sub-board; the display module is electrically connected with the HUB board through a signal connector, the HUB board is electrically connected with the data receiving card and the system security sub-board, the frame body is provided with a window for data line to pass through, the server case is fixed on the frame body, the system security sub-board is electrically connected with the data receiving card in the frame body through a data line, and the system security sub-board is electrically connected with the control system. If any display module is removed, a signal will be sent from the system security sub-board to the control system, the control system controls the display module to stop playing and controls the server case to stop outputting data, at the same time, the control system will record the triggering event, and the system pairing can be performed only after the triggering event is restored. Through the above protection mechanism design, the protection level is strengthened, the invasion difficulty level is improved, the data transmission of the display device is well protected, and the requirement of digital copyright protection is met. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a perspective structural schematic view of a display device with a data protection mechanism provided by an embodiment of the present application;

[0040] Figure 2 is an exploded structural schematic view of the display device shown in FIG. Figure 1

[0041] Figure 3 is a longitudinal sectional view of the display device shown in FIG. Figure 1

[0042] Figure 4 is an internal structural schematic view of the frame body of the display device shown in FIG. Figure 1

[0043] Figure 5 is a structural schematic view of the frame body of the display device shown in FIG. Figure 1

[0044] Figure 6 is an exploded structural schematic view of the display device from another angle shown in FIG. Figure 1

[0045] MARK DESCRIPTION IN THE DRAWINGS:

[0046] ​​​​​Display module 1, frame 2, first window 21, first clamping groove 22, second clamping groove 23, server case 3, second window 31, HUB board 4, data receiving card 5, signal connector 6, data line 7, flange protection cover 8, screw 9, inner door cover a, locking part b, trigger mechanism c, wire protection cover d, fixed guide rail e, movable guide rail f, roller g, limiting block h, front panel protection i, lock j, trigger switch k. DETAILED DESCRIPTION

[0047] In order to make the inventive purposes, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the following described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0048] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0049] Please refer to Figures 1 to 3 , a display device with a data protection mechanism is shown, which comprises a display module 1, a frame 2, a server case 3 and a control system, the frame 2 has a cavity inside, the front end of the cavity has an opening, the display module 1 is fixedly connected with the frame 2 and covers the opening. In this embodiment, a plurality of panel-shaped display modules 1 are assembled together to form a screen located at the front end of the display device.

[0050] Please refer to Figure 4, the cavity is provided with a HUB board 4 and a data receiving card 5, and the server case 3 is provided with a system security sub-board (not shown in the figure), wherein the display module 1 is electrically connected with the HUB board 4 through a signal connector 6, the HUB board 4 is electrically connected with the data receiving card 4 and the system security sub-board. A first window 21 for the data line 7 to pass through is reserved on the plate body at the rear end of the frame body 2, the server case 3 is fixed on the frame body 2 and covers the first window 21, the system security sub-board in the server case 3 is electrically connected with the data receiving card 5 through the data line 7, and the system security sub-board is electrically connected with the control system.

[0051] It should be noted that in the embodiment, the first window 21 is arranged on the rear end surface of the frame body 2, and correspondingly, the server case 3 is fixed on the rear end surface of the frame body 2. In other embodiments, the first window 21 can also be arranged on the outer side surface around the frame body 2, and correspondingly, the server case 3 is fixed on the outer side surface around the frame body 2.

[0052] The data in the server case 3 is transmitted to the data receiving card 5 in the frame body 2 through the data line 7, and the data receiving card 5 transmits the data to the HUB board 4, and the HUB board 4 is used for transmitting and dividing signals, and the HUB board 4 transmits the divided data to each display module 1 through the signal connector 6.

[0053] When any one of the display modules 1 is taken off or moved, the system security sub-board will be triggered, the system security sub-board transmits signals to the control system, and then the control system controls the display module 1 to play video and controls the server case 3 to stop outputting data.

[0054] Please refer to Figure 5 , the display device further comprises a hollow flange protection cover 8, specifically, the flange protection cover 8 is in a square tube structure, the first window 21 is in a rectangular shape, the flange protection cover 8 is fixedly embedded in the first window 21, one end of the data line 7 is connected with the system security sub-board in the server case 3, and the other end is connected to the HUB board 4 after passing through the flange protection cover 8.

[0055] The end of the flange protection cover 8 close to the server case 3 is embedded in the server case 3, the end close to the cavity extends out a flange in the outward direction, a connecting hole is arranged on the flange, and the flange protection cover 8 is fixed on the frame body 2 by screwing 9 in the connecting hole, so that the flange protection cover 8 can only be removed from the inside of the frame body 2.

[0056] In order to further strengthen the protection mechanism, please refer to Figures 2 to 4 , the cavity is further provided with an inner door cover a, the signal connector 6 is arranged on the inner door cover a, and the inner door cover a is locked in the cavity by a locking piece b and covers the HUB board 4, the data receiving card 5 and the system security sub-board, so that under the protection of the inner door cover a, the HUB board 4 and the data receiving card 5 can be contacted only by removing the inner door cover a.

[0057] The cavity is also provided with a trigger mechanism c electrically connected with the control system. When the inner door cover a is touched, the trigger mechanism c can generate a tripping signal to the control system, and then the control system controls the display module 1 to play a video and controls the server case 3 to stop outputting data. In the embodiment, the trigger mechanism c adopts a micro switch fixed in the cavity and abutting against the inner wall of the inner door cover a. When the inner door cover a is displaced and the micro switch detects the displacement signal of the inner door cover a, the micro switch sends a signal to the control system. It should be noted that in other embodiments, a photoelectric sensor or a displacement sensor can also be used as the trigger mechanism.

[0058] The frame 2 is also provided with a wire cover d between two adjacent inner door covers a. The two adjacent HUB boards 4 are connected in communication through a network cable, and the wire cover d covers the network cable. The side surface of the inner door cover a is provided with a wire inlet, and the end of the wire cover d extends into the wire inlet. The shape and size of the wire cover d are matched with the shape and size of the wire inlet. Through the above structure design, the data leakage at the network cable can be prevented.

[0059] Further, the bottom wall of the cavity is provided with a first clamping groove 22 corresponding to the position of the inner door cover a, and the plate edge of the inner door cover a is embedded into the first clamping groove 22. The bottom wall of the cavity is provided with a second clamping groove 23 corresponding to the position of the wire cover d, and the plate edge of the wire cover d is embedded into the second clamping groove 23. Through the above structure design, the inner door cover a and the wire cover d can be protected at the bottom end to prevent the inner door cover a and the wire cover d from being pried up.

[0060] Further, since the server case 3 is installed and fixed behind the screen, if it needs to be maintained, the operator must operate behind the screen. However, the limited space around the back of the screen makes the maintenance work very inconvenient. In order to solve this problem, a sliding module is arranged between the rear end surface of the server case 3 and 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 surface of the frame 2, and the movable guide rail f is fixedly installed on the front end surface of the server case 3. The length direction of the fixed guide rail e and the movable guide rail f is parallel to the horizontal direction. The inner side end of the fixed guide rail e is close to the middle position of the rear end surface of the frame 2, and the outer side end is close to the edge position of the rear end surface of the frame 2. The server case 3 can slide relative to the frame 2 and protrude out of the side edge of the frame 2.

[0061] In order to reduce the force required to push and pull the server case 3, a plurality of rollers g are installed on one side surface of the movable guide rail f, and a sliding groove extending along the length direction is arranged in the fixed guide rail e. The plurality of rollers g are embedded in the sliding groove. When the server case 3 is pushed and pulled, the rollers g can roll along the sliding groove. Since it is rolling contact, the force required for pushing and pulling is small.

[0062] Further, the two ends of the fixed guide rail e are respectively provided with a limiting block h. When the server case 3 is pushed from the outside to the inside direction to the position where the roller g and the limiting block h abut, the limiting block h can prevent the server case 3 from continuing to move, thereby playing a role of limiting and positioning the server case 3.

[0063] Through the above design, the operator can push and pull the server case 3 to make it staggered with the frame 2 in the left-right direction, so that the operator can stand in front of or beside the display module 1 to perform maintenance operation on the server case 3, without disassembling the display module 1, greatly improving the maintenance convenience.

[0064] It should be noted that the above only lists the left-right direction sliding of the frame 2 and the server case 3. In other embodiments, the frame 2 and the server case 3 can also be designed to slide in the up-down direction.

[0065] Further, please refer to Figure 2 , the side surface of the server case 3 close to the frame 2 is provided with a second window 31, one end of the flange protection cover 8 extends out of the rear end surface of the frame 2 through the first window 21, and the data line 7 inside the server case 3 passes through the flange protection cover 8 and then passes through the second window 31 to access the server case 3. When the server case 3 is pushed and pulled to the position, the flange protection cover 8 is inserted into the second window 31 of the server case 3 in front of the display module 1, which can play a secondary limiting role on the server case 3 and protect the data line 7 from damage by external force. Since the flange protection cover 8 is located outside the data line 7, it can play a role of protecting data security. If the flange protection cover 8 is to be removed, the front display module 1 and other modules need to be disassembled first, and the inner door cover a is opened, at which time the signal transmission has been disconnected, and the exposed data line 7 is allowed without data leakage.

[0066] Further, the front surface of the server case 3 corresponds to the side surface of the frame 2, and the server case 3 is provided with a rear-end processor and a front-end IMB server. The dismounting position of the front-end IMB server corresponds to the front surface of the server case, and when the front-end IMB server has an abnormality and needs to be maintained, the front-end IMB server can be extracted from the front, without the need to disassemble the entire server case 3.

[0067] Please refer to Figure 6 , the front surface of the server case 3 is provided with a front panel protection cover i, and the front panel protection cover i is provided with a lock j. The server case 3 is provided with a trigger switch k at a position corresponding to the lock j inside the server case 3, and the trigger switch k is electrically connected with the control system. When the front panel protection cover i is removed, the trigger switch k can be activated, and then the control system controls the server case 3 to stop transmitting data to the display module 1, thereby effectively preventing data leakage and protecting data security.

[0068] When the back-end processor needs to be maintained, the display module 1 is first removed, the system is disconnected, the flange protective cover 8 can be extracted from the front of the display screen module, at this time, the front operation function of the server case 3 is not affected, and maintenance can be directly performed. This design not only ensures the operation safety (system disconnection avoids misoperation), but also ensures the maintenance convenience (front operation does not need complex pre-steps).

[0069] The embodiment utilizes the limited space at the back of the display module 1, and proposes an innovative solution, that is, the server case 3 is flexibly placed on any one side of the left, right, top and bottom of the back of the display screen module 1, without the need of disassembling the frame 2, and the maintenance operation in the lateral direction of the display screen module 1 is realized through the sliding module design, which is convenient to operate. At the same time, with the help of the flange protective cover 8 and the front panel protective cover i, the safety of data and the server case 3 is effectively ensured.

[0070] In summary, the embodiment sets three layers of data protection mechanisms on the display device:

[0071] The first layer of protection is the display module 1 exposed outside. Twelve display modules 1 are installed on each frame 2, the display module 1 is fixed on the frame 2 through a magnet, and is connected through the signal connector 6 and the HUB board 4 in the frame 2. The HUB board 4 is connected with a system security sub-board. If any one of the display modules 1 is removed, the system security sub-board will be triggered, the system security sub-board sends a signal to the control system, the control system stops video playing and data output, and the control system records the triggering event. After recovery, system pairing can be performed.

[0072] The second layer of protection is the inner door cover a arranged in the frame 2. The inner door cover a protects all data lines 7, HUB boards 4 and data receiving cards 5. Even if the display module 1 is disassembled, the HUB board 4, the data receiving card 5 and the data line 7 cannot be touched. The inner door cover a and the frame 2 are connected and fixed by a lock, and a micro switch is arranged. If the lock is opened, the TAMPER (hardware anti-tampering design) will be triggered. If the HUB board 4, the data receiving card 5 and the data line 7 need to be accessed, all the display modules 1 need to be disassembled, the inner door cover a is disassembled after the lock is opened, and then the access can be performed.

[0073] The third layer of protection is the connection structure between the server case 3 and the flange protective cover 8. The server case 3 is a key equipment of the cinema product, which outputs a film source signal. The data SAS line from the server case 3 to the frame 2 is protected by the flange protective cover 8, and the flange protective cover 8 connects the outlet of the server case 3 and the inlet of the frame 2. If the server case 3 needs to be accessed and operated, all the display modules 1 need to be disassembled, the inner door cover a is opened, and then the flange protective cover 8 is taken out from the inside of the frame 2, so that the server case 3 can be disassembled from the frame 2.

[0074] It can be seen that, through the above multi-layer protection mechanism design, the intrusion steps and difficulty are increased, and the protection level is improved.

[0075] The embodiment also provides a recovery method of the data protection mechanism of the display device after being triggered, and the recovery method includes any one of the following three according to the triggered protection layer:

[0076] When the first layer protection is triggered, the recovery step includes:

[0077] The display module 1 is installed back to the front end of the frame body 2,

[0078] The manual button eliminates the triggering event,

[0079] Then, pairing and recovery of playing are performed.

[0080] When the second layer protection is triggered, the recovery step includes:

[0081] The inner door cover a is installed back to the frame body 2, and the locking part b is locked,

[0082] The display module 1 is installed back to the front end of the frame body 2,

[0083] The manual button eliminates the triggering event,

[0084] Then, pairing and recovery of playing are performed.

[0085] When the third layer protection is triggered, the recovery step includes:

[0086] The server case 3 is installed back to the frame body 2,

[0087] The inner door cover a is installed back to the frame body 2, and the locking part b is locked,

[0088] The display module 1 is installed back to the front end of the frame body 2,

[0089] The manual button eliminates the triggering event,

[0090] Then, pairing and recovery of playing are performed.

[0091] In summary, the embodiment solves the problem that the video signal of the spliced screen video playing system is easily stolen or tampered by setting a multi-layer protection mechanism on the display device, and the data transmission of the display device is well protected, the security level is high, and the requirement of digital copyright protection is met.

[0092] The above only describes the preferred embodiment of the present application and should not be used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A display device with data protection mechanism, comprising a display module, a frame, a server cabinet and a control system, the server cabinet is used to deliver data to the display module, the frame has a cavity inside, the front end of the cavity has an opening, the display module is fixedly connected with the frame and covers the opening; characterized in that, The cavity is provided with a HUB board and a data receiving card, and the server case is internally provided with a system security sub-board; the HUB board is used for transmitting and dividing signals, the display module is electrically connected with the HUB board through a signal connector, and the HUB board is electrically connected with the data receiving card and the system security sub-board; A window is reserved on the rear end or side of the frame body, the server case is fixed on the frame body, and the system security sub-board is electrically connected with the data receiving card through a data line penetrating the window; The system security sub-board is electrically connected with a control system, and when any display module is removed or moved, the control system can stop video playing and data output.

2. The display device of claim 1, wherein, The display device further comprises a hollow flange protection cover which is fixedly embedded in the window, one end of the data line is connected with the system security sub-board in the server case, and the other end of the data line is connected with the HUB board after penetrating the flange protection cover.

3. The display device of claim 2, wherein, The flange protection cover is provided with a connecting hole at one end close to the cavity, and the flange protection cover is fixed on the frame body by screwing into the connecting hole.

4. The display device of claim 1, wherein, The cavity is further provided with an inner door cover, the signal connector penetrates the inner door cover, and the inner door cover is locked in the cavity by a locking member and covers the HUB board and the data receiving card.

5. The display device of claim 4, wherein, The cavity is further provided with a triggering mechanism, and when the inner door cover is touched, the triggering mechanism can be triggered to generate an open circuit signal to stop data output.

6. The display device of claim 4, wherein, The frame body is further provided with a wire protection cover, the wire protection cover is located between two adjacent inner door covers, two adjacent HUB boards are connected in communication through a network cable, and the wire protection cover covers the network cable.

7. The display device of claim 6, wherein, The side of the inner door cover is provided with a wire inlet, and the end of the wire protection cover extends into the wire inlet.

8. The display device of claim 6, wherein, The bottom wall of the cavity is provided with a clamping groove corresponding to the positions 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 clamping groove.

9. The display device of any one of claims 1-8, wherein, The server case is installed on the rear end face of the frame body through a sliding module, and the server case can slide relative to the frame body.

10. The display device of claim 9, wherein, The sliding module comprises a fixed guide rail and a movable guide rail, the fixed guide rail is fixedly installed on the rear end face of the frame body, the movable guide rail is fixedly installed on the front end face of the server case, the server case can slide relative to the frame body and protrude from one side of the frame body.

11. The display device of claim 10, wherein, The length direction of the fixed guide rail and the movable guide rail is parallel to the horizontal direction, the inner side end of the fixed guide rail is close to the middle position of the rear end face of the frame body, and the outer side end of the fixed guide rail is close to the edge position of the rear end face of the frame body.

12. The display device of claim 10, wherein, One end of the fixed guide rail located on the inner side is provided with a limiting stopper, when the server case is pushed from the outer side to the inner side direction and reaches the position, the limiting stopper can prevent the server case from continuing to move.

13. The display device of claim 9, wherein, The front face of the server case corresponds to the side of the frame body, the server case is internally provided with a rear end processor and a front end IMB server, the dismounting port position of the front end IMB server corresponds to the front face of the server case, the front face of the server case is externally provided with a front panel protection cover, and the front panel protection cover is provided with a lock.

14. The display device of claim 13, wherein, The server cabinet is internally provided with a trigger switch corresponding to the lock, and the trigger switch is electrically connected with the control system; when the front panel protective cover is removed, the trigger switch can be activated, and then the control system controls the server cabinet to stop transmitting data to the display module.

15. A method of restoring a data protection mechanism of a display device according to claim 4, characterized by, The protection mechanism includes a first layer protection, a second layer protection and a third layer protection; When the first layer protection is triggered, the recovery step includes: The removed display module is installed back to the front end of the frame body, The manual button eliminates the triggering event, Then pairing, recovery play; When the second layer protection is triggered, the recovery step includes: The inner door cover is installed back to the frame body, and is locked by the locking member, The removed display module is installed back to the front end of the frame body, The manual button eliminates the triggering event, Then pairing, recovery play; When the third layer protection is triggered, the recovery step includes: The server cabinet is installed back to the frame body, The inner door cover is installed back to the frame body, and is locked by the locking member, The removed display module is installed back to the front end of the frame body, The manual button eliminates the triggering event, Then pairing, recovery play.

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