Display device

Abstract

The utility model relates to a display device. The display device comprises a display screen; the fixing assembly is arranged on the back side of the display screen; the movable assembly is movably connected with the fixed assembly through a telescopic guide rail unit, the telescopic guide rail unit is configured to provide the moving freedom degree of the movable assembly so that the movable assembly can move back and forth between a first position and a second position, the movable assembly is located outside the side edge of the display screen at the first position, and the movable assembly is located outside the side edge of the display screen at the second position. The movable assembly is retracted to the back side of the display screen; and the control box is arranged on the movable assembly. The control box can be conveniently presented in front of a user due to the capability that the control box extends out of the side face of the display screen, the whole display equipment does not need to be disassembled, the display screen does not need to be moved to be turned over, the maintenance and replacement difficulty of the control box is greatly reduced, operation is convenient, labor-saving and efficient, and the use experience of the user is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display devices, and in particular to a display device. BACKGROUND

[0002] A control box is usually installed on the back of the display screen of a display device, however, during long-term use, the control box is prone to failure or damage, at which time the control box needs to be repaired or replaced. The existing control box generally adopts a fixed installation method or a rotating installation method through a turnover bracket. When the fixed installation method is adopted, the entire machine needs to be disassembled from the wall or the bracket for repair or replacement of the control box, which is laborious and inconvenient to operate. When the rotating installation method through the turnover bracket is adopted, the control box is usually flipped and unfolded towards the back of the display screen to expose the maintenance part, but this method is easily blocked by the wall and the bracket, at which time the display screen needs to be flipped and tilted away from the wall or the bracket to reserve the required flipping space for the control box, which still has the problems of inconvenient maintenance operation, time-consuming and laborious, and poor user experience. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide a display device to solve the problems of inconvenient repair or replacement operation, time-consuming and laborious, and poor user experience.

[0004] The present application provides a display device, which comprises:

[0005] a display screen;

[0006] a fixed assembly, which is arranged on the back side of the display screen;

[0007] a movable assembly and a telescopic guide rail unit, the movable assembly is movably connected with the fixed assembly through the telescopic guide rail unit, the telescopic guide rail unit is configured to provide the movable assembly with a moving degree of freedom, so that the movable assembly can move back and forth between a first position and a second position, in the first position, the movable assembly is located outside the side edge of the display screen, in the second position, the movable assembly is retracted to the back side of the display screen; and

[0008] a control box, which is arranged on the movable assembly.

[0009] In this solution, the control box is integrated onto a movable component. The movable component is mounted to a fixed component via a telescopic guide rail unit. When the control box is working normally and undamaged, the movable component, carrying the control box, retracts along with the fixed component, allowing the control box to be stored on the back of the display screen. At this time, both the control box and the movable component are stacked on the back of the display screen, preventing the user from observing them from the front of the screen and thus avoiding affecting the overall aesthetics. When the control box becomes damaged after prolonged use and requires repair or replacement, the movable component is pulled outwards, allowing it to extend along a direction parallel to the back of the display screen to the outside of the side of the screen, exposing the control box to the user for easy repair or replacement. Compared to existing technologies, the telescopic mounting structure of the movable component provides the control box with the ability to extend from the side of the display screen, making it easily accessible to the user. This eliminates the need to disassemble the entire display device or move the display screen for flipping, significantly reducing the difficulty of repairing and replacing the control box. The operation is convenient, labor-saving, and efficient, enhancing the user experience.

[0010] The technical solution of this application will be further described below:

[0011] In one embodiment, the telescopic guide rail unit includes a first guide rail component and a second guide rail component, the first guide rail component being mounted on the fixed component and the second guide rail component being mounted on the movable component, the first guide rail component and the second guide rail component being slidably connected.

[0012] In one embodiment, the telescopic guide rail unit further includes a damping element, which is mounted on the first guide rail and slides in contact with the second guide rail, or the damping element is mounted on the second guide rail and slides in contact with the first guide rail.

[0013] In one embodiment, the display device further includes a handle disposed on the movable component and arranged close to the side of the display screen.

[0014] In one embodiment, the display device further includes a power unit disposed on the fixed component and connected to the movable component in a transmission manner, the power unit being used to drive the movable component to extend and retract relative to the fixed component.

[0015] In one embodiment, the display device further includes a plurality of mounting feet arranged at intervals around the outer periphery of the control box, the control box being connected to the movable component via the plurality of mounting feet.

[0016] In one embodiment, the display device further includes a limit lock assembly disposed on the movable assembly, and the fixed assembly is provided with a limit engagement portion, wherein the limit lock assembly is capable of locking or unlocking with the limit engagement portion.

[0017] In one embodiment, the limiting lock assembly includes an operating member and a locking tongue. The operating member is disposed on the movable component, and the locking tongue is disposed on the operating member and arranged toward the fixed component. The limiting mating part includes a locking hole, and the locking tongue can be inserted into or disengaged from the locking hole.

[0018] In one embodiment, the operating element includes a spring, the movable component has a clearance notch, one end of the spring is disposed on the movable component, the other end of the spring extends into the clearance notch, and the locking tongue is mounted on the portion of the spring that extends into the clearance notch.

[0019] In one embodiment, the operating element further includes a paddle connected to one end of the spring that extends into the clearance notch, and the latch is mounted on the paddle. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a display device according to an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of the structure in which the active component is in the second position in one embodiment.

[0024] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0025] Figure 4 This is a schematic diagram of the structure in one embodiment where the active component and the control box are in the first position.

[0026] Figure 5 for Figure 4 A structural diagram from the rear-view perspective.

[0027] Figure 6 This is a structural diagram of the control box, moving components, and fixed components in the second position.

[0028] Figure 7 This is a structural diagram of the control box, moving components, and fixed components in the first position.

[0029] Figure 8 for Figure 7 A magnified schematic diagram of the structure at point B in the middle.

[0030] Figure 9 This is an exploded structural diagram of the fixed component and the movable component in one embodiment.

[0031] Figure 10 for Figure 9 A magnified schematic diagram of the structure at point C.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Display device; 10. Display screen; 20. Fixing component; 21. Lock hole; 30. Movable component; 31. Alignment notch; 40. Telescopic guide rail unit; 41. First guide rail component; 42. Second guide rail component; 50. Control box; 60. Handle; 70. Mounting foot; 80. Limit lock assembly; 81. Operating component; 811. Spring; 812. Paddle; 82. Lock tongue; 90. Wall mount bracket. Detailed Implementation

[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0035] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0036] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0040] Currently, the control box 50 is usually installed on the back of the display screen 10 in the display device 100. The existing control box 50 is generally installed in a fixed manner or by rotating it with a flip bracket. When the fixed installation method is used, the entire control box 50 needs to be removed from the wall or bracket when it is repaired or replaced, which is labor-intensive and cumbersome. When the rotating installation method is used with a flip bracket, the control box 50 is usually flipped and unfolded to the rear of the display screen 10 to expose the maintenance parts. However, this method is easily blocked and interfered with by the wall and bracket. At this time, the display screen 10 needs to be flipped and tilted to the front away from the wall or bracket to make room for the flipping of the control box 50. The maintenance operation is still inconvenient, time-consuming and labor-intensive, and affects the user experience.

[0041] To address the aforementioned issues, this solution proposes a side-mounted installation structure for the control box 50. Specifically, a fixed component 20, a telescopic guide rail unit 40, and a movable component 30 are integrated on the back side of the display screen 10. The movable component 30, with the aid of the telescopic guide rail unit 40, has the freedom to reciprocate parallel to the back side of the display screen 10. This allows the control box 50 to be easily and quickly moved and extended from the side of the display screen 10 after being installed on the movable component 30, thus facilitating time-saving and labor-saving maintenance or replacement of the control box 50 for the user.

[0042] See Figure 1 This application illustrates a display device 100 in one embodiment. The display device 100 can be any one of a television set, a conference screen, an advertising screen, etc.

[0043] Please combine Figures 2 to 7 For example, the display device 100 includes a display screen 10, a fixed component 20, a movable component 30, a telescopic guide rail unit 40, and a control box 50.

[0044] The control box typically includes a control card assembly.

[0045] The display screen 10 can be a single large screen structure, or it can be a large screen structure formed by assembling multiple small screens. The specific choice can be made flexibly according to actual needs.

[0046] When installing and using the display screen 10, it can be floor-mounted or wall-mounted. Specifically, a floor-mounted bracket is installed on the back of the display screen 10 to enable floor-mounting of the display device 100. A wall-mounted bracket 90 is installed on the back of the display screen 10 to enable wall-mounting of the display device 100.

[0047] The fixing component 20 is installed on the back side of the display screen 10. For example, the fixing component 20 is connected and fixed to the wall mount bracket 90 installed on the back side of the display screen 10. The display screen 10 is protected from stress by the wall mount bracket 90, thus protecting the safety and structural integrity of the display screen 10.

[0048] For example, the installation method of the fixing component 20 and the wall bracket 90 can be any one of screw connection, snap connection, welding, magnetic connection, etc., and can be selected according to actual needs.

[0049] It should be noted that the display device 100 of this application has a unique installation posture, and when the display device 100 is in the installation state, the display screen 10 has a top side, a ground side, a left side, and a right side.

[0050] For example, the display screen 10 is usually a rectangular structure, with the top side corresponding to the long side at the top of the display screen 10, the bottom side corresponding to the long side at the bottom of the display screen 10, and the left and right sides corresponding to the two short sides at the left and right of the display screen 10, respectively.

[0051] The movable component 30 is movably connected to the fixed component 20 via a telescopic guide rail unit 40. The telescopic guide rail unit 40 is configured to provide the movable component 30 with a degree of freedom of movement. For example, the degree of freedom of movement allows the movable component 30 to move parallel to the back side of the display screen 10, so that the movable component 30 can move back and forth between a first position and a second position. In the first position, the movable component 30 is located outside the side of the display screen 10. In the second position, the movable component 30 is retracted to the back side of the display screen 10, that is, stacked with the back side of the display screen 10. The control box 50 is mounted on the movable component 30.

[0052] It should be noted that the movable component 30 extends to the outside of the side of the display screen 10. Specifically, the movable component 30 can extend from any one of the top, bottom, left, and right sides of the display screen 10. The appropriate option can be chosen flexibly according to actual needs.

[0053] Understandably, when the display device 100 is wall-mounted, a gap is formed between the back of the display screen 10 and the wall. The fixed component, the movable component 30, and the telescopic guide rail unit 40 are all located in the gap, and the movable component 30 can move in and out of the gap.

[0054] Please continue reading. Figure 1 , Figure 2 , Figure 4 and Figure 5 It should be noted that when the movable component 30 is in the second position, the movable component 30 and the control box 50 are completely stored on the back side of the display screen 10. That is, at this time, the display screen 10 completely covers the control box 50, the movable component 30 and the fixed component 20 to achieve hidden installation and ensure the overall aesthetics of the display device 100.

[0055] In this application, the main structural components of both the fixed component 20 and the movable component 30 are rectangular plates, such as metal plates, rigid plastic plates, or alloy plates. Additionally, some mounting accessories may be included for installation and fixation.

[0056] The fixed component 20 also has some through-hole structures to reduce material usage and weight. The movable component 30 also has some through-slot structures to facilitate heat dissipation for the control box 50.

[0057] In summary, implementing the technical solution of this embodiment will achieve the following beneficial effects: In the display device 100 of this solution, the control box 50 is integrated and installed on the movable component 30. The movable component 30 is installed with the fixed component 20 through the telescopic guide rail unit 40. When the control box 50 is working normally and is not damaged, the movable component 30 carries the control box 50 together with the fixed component 20, so that the control box 50 is retracted to the back side of the display screen 10. At this time, the control box 50 and the movable component 30 are both stacked with the back side of the display screen 10, and the user will not be able to see the control box 50 and the movable component 30 from the front of the display screen 10, thus avoiding affecting the overall aesthetics of the device; when the control box 50 is damaged after long-term use and needs to be repaired or replaced, Pulling the movable component 30 outward allows it to extend the control box 50 along a direction parallel to the back of the display screen 10, moving it to the outside of the side of the display screen 10. This exposes the control box 50 to the user, facilitating maintenance or replacement. Compared to existing technologies, the telescopic mounting structure of the movable component 30 allows the control box 50 to extend from the side of the display screen 10, making it easily visible to the user. This eliminates the need to disassemble the entire display device 100 or move the display screen 10 for flipping, significantly reducing the difficulty of maintenance and replacement. The operation is convenient, labor-saving, and efficient, enhancing the user experience.

[0058] In an optional embodiment, the telescopic guide rail unit 40 includes a first guide rail 41 and a second guide rail 42. The first guide rail 41 is mounted on the fixed component 20, and the second guide rail 42 is mounted on the movable component 30. The first guide rail 41 and the second guide rail 42 are slidably connected. Therefore, by means of the relative sliding between the first guide rail 41 and the second guide rail 42, the movable component 30 can be telescopically slid relative to the fixed component 20, thereby driving the control box 50 to extend from the side (left or right) of the display or retract from the side of the display screen 10 into the back of the display screen 10. The installation structure is simple, the manufacturing cost is low, and the difficulty and cost of subsequent maintenance are low.

[0059] Furthermore, the telescopic guide rail unit 40 also includes a damping element. The damping element is mounted on the first guide rail 41 and slides in contact with the second guide rail 42, or the damping element is mounted on the second guide rail 42 and slides in contact with the first guide rail 41. The damping element can reduce the friction and wear caused by the relative sliding between the first guide rail 41 and the second guide rail 42, and increase the friction force on the second guide rail 42, thereby controlling the moving speed of the movable component 30 and improving the feel of pushing and pulling the movable component 30.

[0060] For example, the damping element can be a rubber strip.

[0061] Please continue reading. Figures 3 to 5 Furthermore, to make it easier for users to push and pull the movable component 30, the display device 100 also includes a handle 60, which is disposed on the movable component 30 and arranged close to the side of the display screen 10.

[0062] The handle 60 adopts a U-shaped structure, and its two ends are fixedly installed on the movable component 30 by welding, screwing or other means. The structure is simple, easy to process and convenient to use.

[0063] When the movable component 30 is in the second position, the handle 60 can be flush with the side of the display screen 10 or slightly protrude from the side of the display screen 10, so as to facilitate the user to position the handle 60 and operate it, while avoiding the handle 60 affecting the overall aesthetics of the machine.

[0064] Manual push-pull operation will still increase the user's burden to a certain extent. Therefore, this application also proposes another implementation scheme to realize the automatic extension or retraction of the movable component 30. That is, in one embodiment, the display device 100 further includes a power unit, which is disposed on the fixed component 20 and connected to the movable component 30 in a transmission manner. The power unit is used to drive the movable component 30 to extend and retract relative to the fixed component 20.

[0065] It should be noted that the power unit is connected to the movable component 30 by transmission, which means that the power unit can output driving force to the movable component 30 so that the movable component 30 can perform telescopic movement relative to the fixed component 20.

[0066] The power unit outputs driving force to the movable component 30, so that the movable component 30 carries the control box 50 to automatically extend or retract from the side of the display screen 10, thereby improving the automation level of the display device 100, freeing up manpower, and improving the user experience.

[0067] Optionally, the power unit can be any one of the following: an electric actuator, a cylinder, a motor lead screw module, etc. In use, it can be controlled by setting an operation switch on the display device 100, or by equipping the power unit with a remote control.

[0068] Please continue reading. Figure 8 In order to enable the control box 50 to be mounted and integrated on the active component 30, in an optional embodiment, the display device 100 further includes a plurality of mounting feet 70, which are arranged at intervals around the outer periphery of the control box 50, and the control box 50 is connected to the active component 30 through the plurality of mounting feet 70.

[0069] For example, the mounting leg 70 is an L-shaped plate. The two plates connected at an angle are screwed to the outer shell of the control box 50 and the movable component 30 respectively through threaded parts. This completes the installation and fixation of the control box 50 to the movable component 30. The installation method is simple, the connection strength is high, and the disassembly and assembly are convenient and labor-saving, which is conducive to the subsequent maintenance or replacement of the control box 50.

[0070] Of course, the mounting method for the mounting feet 70, the movable component 30, and the control box 50 can also be at least one of the following: snap-fit, adhesive, magnetic connection, etc. The choice can be made flexibly according to actual needs, and will not be elaborated here.

[0071] Please continue reading. Figure 3 ,as well as Figures 8 to 10 In addition, based on any of the above embodiments, the display device 100 also includes a limit lock assembly 80, which is disposed on the movable assembly 30 and the fixed assembly 20 is provided with a limit engagement part. The limit lock assembly 80 can lock or unlock with the limit engagement part.

[0072] When the movable component 30 and the control box 50 are in the second position together, the limit lock component 80 locks with the limit engagement part, which restricts the movable component 30 from moving freely and ensures structural stability. When it is necessary to repair or replace the control box 50, the limit lock component 80 is unlocked from the limit engagement part, and the movable component 30 regains its freedom of extension and sliding, so the control box 50 can be pulled out from the side of the display screen 10.

[0073] Of course, based on a reasonable structural design, the limit lock assembly 80 can also be installed on the fixed assembly 20, while a limit mating part is set on the movable assembly 30, which is also within the scope of protection of this application.

[0074] Please continue reading. Figure 3 and Figure 10 Specifically, in the above embodiments, the limiting lock assembly 80 includes an operating member 81 and a locking tongue 82. The operating member 81 is disposed on the movable assembly 30, and the locking tongue 82 is disposed on the operating member 81 and arranged toward the fixed assembly 20. The limiting mating part includes a locking hole 21, and the locking tongue 82 can be inserted into the locking hole 21 or disengaged from the locking hole 21.

[0075] When the operating element 81 is in a free state, the locking tongue 82 inserts into the lock hole 21 to form a lock, thereby locking the movable component 30 onto the fixed component 20 and preventing the movable component 30 and the control box 50 from moving freely. When the operating element 81 is pressed, the locking tongue 82 disengages from the lock hole 21 to unlock the movable component 30, allowing the movable component 30 to slide relative to the fixed component 20 and extend the control box 50 from the side of the display screen 10.

[0076] Furthermore, the operating component 81 includes a spring 811, the movable component 30 is provided with a clearance notch 31, one end of the spring 811 is disposed on the movable component 30, the other end of the spring 811 extends into the clearance notch 31, and the locking tongue 82 is installed on the part of the spring 811 that extends into the clearance notch 31.

[0077] When the spring piece 811 is in a free state, the supporting bolt 82 is inserted into the lock hole 21 to form a locking effect; when the spring piece 811 is pressed, forcing it to bend away from the fixing component 20, the bolt 82 can be pulled out of the lock hole 21, thus achieving the unlocking purpose. The limit lock component 80 in this embodiment has a simple structure and working principle, is easy to operate, and reduces manufacturing costs.

[0078] Furthermore, the operating component 81 also includes a lever 812, which is connected to one end of the spring 811 that extends into the clearance notch 31. The bolt 82 is mounted on the lever 812. The lever 812 is designed to facilitate a user's lever operation, thereby causing the spring 811 to bend under pressure, thus unlocking the bolt 82 from the lock hole 21.

[0079] For example, the paddle 812 has an arc-shaped structure and bends away from the fixing component 20.

[0080] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display device, characterized by comprising: The display device comprises: a display screen; a fixed assembly arranged at the back side of the display screen; a movable assembly and a telescopic guide rail unit, the movable assembly is movably connected with the fixed assembly through the telescopic guide rail unit, the telescopic guide rail unit is configured to provide the movable assembly with a moving degree of freedom, so that the movable assembly can move back and forth between a first position and a second position, in the first position, the movable assembly is located outside the side edge of the display screen, in the second position, the movable assembly is retracted to the back side of the display screen; and a control box arranged on the movable assembly. The telescopic guide rail unit comprises a first guide rail piece and a second guide rail piece, the first guide rail piece is arranged on the fixed assembly, and the second guide rail piece is arranged on the movable assembly, the first guide rail piece is slidably connected with the second guide rail piece.

2. The display device of claim 1, wherein, The telescopic guide rail unit further comprises a damping piece, the damping piece is arranged on the first guide rail piece and slidably contacts with the second guide rail piece, or the damping piece is arranged on the second guide rail piece and slidably contacts with the first guide rail piece.

3. The display device of claim 2, wherein, The display device further comprises a handle, the handle is arranged on the movable assembly and is arranged close to the side edge of the display screen.

4. The display device of claim 1, wherein, The display device further comprises a power unit, the power unit is arranged on the fixed assembly and is drivingly connected with the movable assembly, the power unit is used to drive the movable assembly to telescopically move relative to the fixed assembly.

5. The display device of claim 1, wherein, The display device further comprises a plurality of mounting legs, the mounting legs are arranged at intervals around the outer periphery of the control box, the control box is connected with the movable assembly through the mounting legs.

6. The display device of claim 1, wherein, The display device further comprises a limiting lock assembly, the limiting lock assembly is arranged on the movable assembly, the fixed assembly is provided with a limiting matching part, the limiting lock assembly can be locked or unlocked with the limiting matching part.

7. The display device of claim 1, wherein, The limiting lock assembly comprises an operating piece and a lock tongue, the operating piece is arranged on the movable assembly, the lock tongue is arranged on the operating piece and is arranged towards the fixed assembly, the limiting matching part comprises a lock hole, the lock tongue can be inserted into the lock hole or withdrawn from the lock hole.

8. The display device of claim 7, wherein, The operating piece comprises a spring piece, the movable assembly is provided with an avoiding gap, one end of the spring piece is arranged on the movable assembly, the other end of the spring piece is inserted into the avoiding gap, and the lock tongue is arranged on the part of the spring piece inserted into the avoiding gap.

9. The display device of claim 8, wherein, The operating piece further comprises a pushing piece, the pushing piece is connected with the end of the spring piece inserted into the avoiding gap, and the lock tongue is arranged on the pushing piece.

10. The display device of claim 9, wherein, ​

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