An LED display screen

Abstract

This application discloses an LED display screen, relating to the field of LED display screen technology. The LED display screen includes a cabinet, LED display units, and an arc adjustment mechanism. The cabinet includes a first frame, a second frame, a first hinge structure, and a second hinge structure. The first hinge structure is rotatably connected between the first and second frames at their first ends, and the second hinge structure is rotatably connected between the second ends of the first and second frames. The LED display units are connected to the first and second hinge structures. The arc adjustment mechanism is located between the first and second frames and is used to adjust and fix the arc of the LED display units. This LED display screen solves the problem that current LED displays cannot achieve flexible angle adjustment while ensuring connection strength and angle consistency.

Description

Technical Field

[0001] This application relates to the field of LED display technology, and in particular to an LED display screen. Background Technology

[0002] With the rapid development of the LED industry, curved LED display products are becoming increasingly popular in daily life, especially in fields such as stage performances and advertising, where they have broad application prospects.

[0003] Existing LED displays are typically composed of multiple LED display units spliced ​​together and installed and fixed in a cabinet. To achieve a curved display effect, the traditional solution mainly uses a segmented bezel for angle adjustment, that is, dividing the bezel into several segments and setting adjustable structures to achieve angle changes. However, this type of structure often has the following drawbacks: First, the joints between the segments form weak points in the structure, with insufficient connection strength, which are prone to loosening and deformation under long-term use or external forces, making it difficult to maintain the curved state; second, the angle adjustment between each segment is independent and lacks continuity, resulting in large cumulative errors and difficulty in ensuring angle consistency, causing poor flatness and uneven curvature of the display surface, thus affecting the display effect.

[0004] Therefore, how to provide an LED display structure that can both flexibly adjust the angle to adapt to curved installation and ensure connection strength and angle consistency is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this application is to provide an LED display screen that solves the problem that current LED displays cannot achieve flexible angle adjustment while ensuring connection strength and angle consistency.

[0006] To achieve the above objectives, this application provides an LED display screen, comprising:

[0007] The housing includes a first frame, a second frame, a first hinge structure, and a second hinge structure. The first hinge structure is rotatably connected between the first ends of the first frame and the second frame, and the second hinge structure is rotatably connected between the second ends of the first frame and the second frame.

[0008] An LED display unit is connected to the first hinge structure and the second hinge structure;

[0009] An arc adjustment mechanism is located between the first frame and the second frame, and is used to adjust and fix the curvature of the LED display unit.

[0010] Compared to the aforementioned background technology, the LED display screen provided in this application embodiment includes a cabinet, an LED display unit, and an arc adjustment mechanism. The cabinet includes a first frame, a second frame, a first hinge structure, and a second hinge structure. The first hinge structure is rotatably connected between a first end of the first frame and the second frame, and the second hinge structure is rotatably connected between a second end of the first frame and the second frame. The LED display unit is connected to the first hinge structure and the second hinge structure. The arc adjustment mechanism is disposed between the first frame and the second frame and is used to adjust and fix the arc of the LED display unit.

[0011] The beneficial effects of this LED display screen configuration mainly include:

[0012] By setting a first hinge structure and a second hinge structure between the two ends of the first and second frame respectively, a hinge connection with synchronous rotation at both ends is formed between the two frame sides. The curvature of the LED display unit connected to the first and second hinge structures is adjusted and fixed by the arc adjustment mechanism. Compared with the traditional segmented frame angle adjustment method, the hinge structure between the two ends of the frame can provide stronger connection rigidity and structural stability, effectively avoiding the loosening and deformation problems that are prone to occur at the segmented connection, and ensuring the position retention and angle consistency after angle adjustment. At the same time, during the adjustment process of the arc adjustment mechanism, the synchronous rotation characteristics of the hinge structure between the two ends of the frame ensure that the structure of the two frame sides remains continuous during the arc adjustment process, ensuring the regularity of the curvature of the LED display unit, and significantly improving the uniformity and visual quality of the arc display effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the LED display screen in the embodiments of this application.

[0014] Figure 2 for Figure 1 The diagram shows the structural diagram of the cabinet in the LED display screen.

[0015] Figure 3 This is a schematic diagram before the upper and lower boxes are connected.

[0016] Figure 4 This is a schematic diagram showing the connection between the upper and lower boxes.

[0017] Figure 5 This is a leveling diagram for two LED display units located at different levels within the same housing.

[0018] Figure 6 for Figure 2 An exploded view of the first hinge structure in the box shown.

[0019] Figure 7 for Figure 2An exploded view of the second hinge structure in the box shown.

[0020] Figure 8 for Figure 2 The exploded view of the third hinge structure in the box shown.

[0021] Figure 9 for Figure 1 The diagram shows the structure of the arc adjustment mechanism in the LED display screen.

[0022] Figure 10 for Figure 1 The diagram shows a schematic of the arc adjustment mechanism in the LED display screen from another angle.

[0023] Figure 11 for Figure 9 A sectional view.

[0024] Figure 12 for Figure 11 An enlarged schematic diagram of part A in the middle.

[0025] Figure 13 for Figure 9 An exploded view of the locking sleeve assembly in the arc-adjusting mechanism shown.

[0026] Figure 14 for Figure 9 The exploded view of the locking rod assembly in the arc adjustment mechanism is shown.

[0027] Figure 15 for Figure 1 The diagram shows a front view of the bottom shell of the LED display screen.

[0028] Figure 16 for Figure 15 The main view.

[0029] Figure 17 for Figure 1 The diagram shows the back of the bottom shell of the LED display screen.

[0030] Figure 18 for Figure 17 The main view.

[0031] Figure 19 for Figure 18 Enlarged diagram of part B in the middle.

[0032] Figure 20 This is a schematic diagram of the first type of flexible hinge.

[0033] Figure 21 This is a schematic diagram of the second type of flexible hinge.

[0034] Figure 22 This is a schematic diagram of the third type of flexible hinge.

[0035] Figure 23 for Figure 1 The diagram shows the structure of the central control box module in the LED display screen.

[0036] Figure 24 for Figure 23 The exploded view of the central control box module shown.

[0037] Figure 25 for Figure 23 The cross-sectional view of the central control box module shown.

[0038] Figure 26 for Figure 23 An exploded view of the connectors in the central control box module shown.

[0039] Figure 27 for Figure 26 The diagram shows a connector insert. Detailed Implementation

[0040] Please see Figure 1 The LED display screen 1000 provided in this application embodiment includes a cabinet 200, an LED display unit 300, and an arc adjustment mechanism 100.

[0041] The housing 200 includes a first frame 1, a second frame 2, a first hinge structure 40, and a second hinge structure 50. The first hinge structure 40 is rotatably connected between the first ends of the first frame 1 and the second frame 2, and the second hinge structure 50 is rotatably connected between the second ends of the first frame 1 and the second frame 2. The LED display unit 300 is connected to the first hinge structure 40 and the second hinge structure 50. The arc adjustment mechanism 100 is disposed between the first frame 1 and the second frame 2 and is used to adjust and fix the arc of the LED display unit 300.

[0042] By setting a first hinge structure 40 and a second hinge structure 50 between the two ends of the first frame 1 and the second frame 2 respectively, a hinge connection with synchronous rotation at both ends is formed between the two frames. The curvature of the LED display unit 300 connected to the first hinge structure 40 and the second hinge structure 50 is adjusted and fixed by the arc adjustment mechanism 100. Compared with the traditional segmented frame angle adjustment method, the hinge structure between the two ends of the frame can provide stronger connection rigidity and structural stability, effectively avoiding the loosening and deformation problems that are prone to occur at the segmented connection, and ensuring the position retention and angle consistency after angle adjustment. At the same time, during the adjustment process of the arc adjustment mechanism 100, the synchronous rotation characteristics of the hinge structure between the two ends of the frame ensure that the structure of the two frames remains continuous during the arc adjustment process, ensuring the regularity of the curvature of the LED display unit 300, and significantly improving the uniformity and visual quality of the arc display effect.

[0043] Please see Figure 2 In the housing 200 provided in this embodiment, the first hinge structure 40 includes a first rotating hinge 41 and a first magnetic connector 42 disposed on the first rotating hinge 41; the second hinge structure 50 includes a second rotating hinge 51 and a second magnetic connector 52 disposed on the second rotating hinge 51; the first rotating hinge 41 is rotatably connected to the first end of both the first frame 1 and the second frame 2 (e.g., Figure 2 The second rotating hinge 51 is rotatably connected between the second ends of the first frame 1 and the second frame 2 (as shown above) and the upper end of the first frame 1. Figure 2 Between the lower ends shown, the first magnetic connector 42 and the second magnetic connector 52 are used to magnetically connect with the magnetic connector 301 (generally a magnet) on the LED display unit 300.

[0044] The LED display screen 1000 has a cabinet of 200 as configured in this way:

[0045] Firstly, by setting a first rotating hinge 41 and a second rotating hinge 51 at both ends of the first frame 1 and the second frame 2 respectively, a rotatable connection is formed between the first frame 1 and the second frame 2. This allows for multi-angle adjustment between the two frames according to the arc arrangement requirements of the LED display unit 300, thereby stably adapting to the arc curvature of the LED display unit 300 and meeting the display scenario requirements of different curvatures.

[0046] Secondly, by setting a first magnetic connector 42 and a second magnetic connector 52 on the first rotating hinge 41 and the second rotating hinge 51 respectively, the magnetic connectors are magnetically connected to the magnetic connectors 301 on the LED display unit 300. The LED display unit 300 can be quickly installed and disassembled without additional fastening tools, which significantly improves assembly efficiency and facilitates later maintenance and replacement.

[0047] In general, the cabinet 200 of this application achieves flexible adjustment of the angle of the cabinet 200 by setting rotating hinges at both ends of the two side frames to adapt to the arc installation requirements of the LED display unit 300; at the same time, the magnetic connector is integrated into the rotating hinge, so that the LED display unit 300 can be quickly magnetically fixed to the hinge structure without the need for additional connectors, simplifying the installation process and improving assembly efficiency.

[0048] To facilitate the connection of two adjacent boxes 200, splicing structures can be set on the first rotating hinge 41 and the second rotating hinge 51 of the box 200 frame, respectively. In this way, when adjacent boxes 200 need to be spliced, the first rotating hinge 41 at the top of one box 200 can be connected to the second rotating hinge 51 at the bottom of the other box 200 to achieve the connection between the adjacent boxes 200.

[0049] Please see Figure 3and Figure 4 The second rotating hinge 51 is provided with a first positioning groove 51112. The first hinge structure 40 also includes a telescopic positioning member 43, which is telescopically provided on the first rotating hinge 41. The telescopic positioning member 43 is used to extend into the first positioning groove 51112 to connect the first hinge structure 40 and the second hinge structure 50.

[0050] In this way, by setting a retractable positioning element on the first rotating hinge 41 and a corresponding first positioning groove 51112 on the second rotating hinge 51, when adjacent boxes 200 need to be spliced, the retractable positioning element on the first rotating hinge 41 at the top of one box 200 is connected to the corresponding first positioning groove 51112 on the second rotating hinge 51 at the bottom of the other box 200, so that the first hinge structure 40 at the top of one box 200 and the second hinge structure 50 at the bottom of the other box 200 form a rigid connection, thereby realizing the fixed connection between the upper and lower adjacent boxes 200.

[0051] Please see Figure 6 The first rotating hinge 41 includes several first hinge modules 411, first rotating connectors 412 and first rotating seats 413.

[0052] Each first hinge module 411 is provided with a sliding groove 4113 for sliding the corresponding telescopic positioning member 43; the first rotating connector 412 is provided between adjacent first hinge modules 411 and rotates with the adjacent first hinge modules 411 to make the adjacent first hinge modules 411 rotate connected; two first rotating seats 413 are provided at both ends of a plurality of first hinge modules 411, and the two first rotating seats 413 are used to allow the plurality of first hinge modules 411 to rotate between the first ends of the first frame 1 and the second frame 2.

[0053] As can be seen, by designing the first rotating hinge 41 as a modular structure consisting of several first hinge modules 411 connected in series, with each module rotatedly connected by a first rotating connector 412 to form a chain-like hinge structure, the first rotating hinge 41 as a whole possesses multi-segment bending capability, enabling it to adapt to more complex curved surface shapes. Simultaneously, the modular design allows for flexible addition or reduction of the number of modules according to the dimensions of the housing 200, improving the structure's versatility and scalability. Furthermore, the end-support design of the first rotating base 413 ensures the overall stability of this modular chain structure and the two side frames.

[0054] In addition, the sliding grooves 4113 provided on each module can provide precise guidance and support for the telescopic positioning component 43, ensuring the smoothness of the telescopic movement of the positioning component and the positioning accuracy.

[0055] Specifically, the first hinge module 411 includes a first hinge base 4111 and a first cover plate 4112. The first hinge base 4111 is provided with a first mounting groove 41111 for mounting the first magnetic connector 42; the first cover plate 4112 is connected to the first hinge base 4111 and forms a sliding groove 4113 with the first hinge base 4111.

[0056] In other words, the first hinge module 411 is designed as a separate structure of the first hinge seat 4111 and the first cover plate 4112. The first mounting groove 41111 is directly set on the first hinge seat 4111, which facilitates the embedding and installation of the first magnetic connector 42. After the first cover plate 4112 and the first hinge seat 4111 are assembled, they form a sliding groove 4113. This arrangement simplifies the structure of the first hinge module 411 and makes the installation and maintenance of the telescopic positioning component 43 more convenient.

[0057] To facilitate the connection between the first cover plate 4112 and the first hinge seat 4111, the first cover plate 4112 is provided with a claw assembly 41121. The claw assembly 41121 includes two opposing claw bodies, which engage with the slots on the first hinge seat 4111 to secure the first cover plate 4112 to the first hinge seat 4111. This allows for tool-free quick assembly and disassembly of the first cover plate 4112, improving production efficiency and ease of maintenance.

[0058] In addition, the first cover plate 4112 is provided with a clearance notch 41122 for one end of the telescopic positioning member 43 to extend out.

[0059] It should be noted that the aforementioned telescopic positioning component 43 has an L-shaped structure. The long side extends to complete the connection of the housing 200, while the short side extends out of the first cover plate 4112 through the clearance notch 41122, allowing maintenance personnel to directly operate the telescopic positioning component 43. Simultaneously, the clearance notch 41122 on the first cover plate 4112 provides necessary movement space for the telescopic positioning component 43, ensuring that it can smoothly extend or retract during telescopic movements, avoiding structural interference and guaranteeing the normal operation of the positioning function.

[0060] Please see Figure 7 The second rotating hinge 51 includes several second hinge modules 511, a second rotating connector 512, and a second rotating seat 513.

[0061] Each of the second hinge modules 511 is provided with a first positioning groove 51112, and each of the second hinge modules 511 is fitted with two first rotating shafts 514; the second rotating connector 512 is provided between adjacent second hinge modules 511 and rotates with the corresponding first rotating shaft 514 to make adjacent second hinge modules 511 rotatably connected; two second rotating seats 513 are respectively provided at both ends of a plurality of second hinge modules 511, and the two second rotating seats 513 are used to allow the plurality of second hinge modules 511 to be rotatably connected between the second ends of the first frame 1 and the second frame 2.

[0062] The second hinge module 511 includes a second hinge seat 5111 and a second cover plate 5112. The second hinge seat 5111 is provided with a second mounting groove 51111 for mounting the second magnetic connector 52; the second cover plate 5112 is connected to the second hinge seat 5111.

[0063] In other words, the second hinge module 511 is designed as a separate structure of the second hinge seat 5111 and the second cover plate 5112, with the second mounting groove 51111 directly set on the second hinge seat 5111, facilitating the embedded installation of the second magnetic connector 52. This arrangement simplifies the structure of the second hinge module 511.

[0064] To facilitate the connection between the second cover plate 5112 and the second hinge seat 5111, the second cover plate 5112 is also equipped with a claw assembly. The claw assembly includes two opposing claw bodies, which engage with the slots on the second hinge seat 5111 to secure the second cover plate 5112 to the second hinge seat 5111. This allows for tool-free quick assembly and disassembly of the second cover plate 5112, improving production efficiency and ease of maintenance.

[0065] As can be seen, similar to the first rotating hinge 41, the second rotating hinge 51 is designed as a modular structure consisting of several second hinge modules 511 connected in series. This allows the second rotating hinge 51 to have multi-segment bending capabilities, facilitating adaptation to the diverse curved shapes of the LED display unit 300. Simultaneously, each second hinge module 511 has a pre-set first positioning groove 51112, providing a positioning mating point for each module. This creates a multi-point locking mechanism with the telescopic positioning element 43 on the first rotating hinge 41 of the adjacent housing 200, improving the stability and torsional resistance of the connection between adjacent housings 200. Furthermore, the end-support design of the second rotating base 513 ensures the overall stability of this modular chain structure and the two side frames.

[0066] Unlike the first rotating hinge 41, each second hinge module 511 is fitted with a first rotating shaft 514. The fitting structure of the first rotating shaft 514 and the second hinge module 511 ensures the concentricity of the rotational engagement and the structural strength.

[0067] Please see Figure 8 Furthermore, the housing 200 also includes a third hinge structure 60, which includes a third rotating hinge 61 and a third magnetic connector 62 disposed on the third rotating hinge 61. The third rotating hinge 61 is rotatably connected between the middle of the first frame 1 and the second frame 2. The third rotating hinge 61 is located between the first rotating hinge 41 and the second rotating hinge 51. The third magnetic connector 62 is used to be magnetically connected to the magnetic connector 301 on the LED display unit 300.

[0068] In this way, a third hinge structure 60 is added in the middle area between the first rotating hinge 41 and the second rotating hinge 51, forming a three-point support layout. This effectively reduces the bending deformation of the middle part of the LED display unit 300 under its own weight, improves the flatness of the display surface, and the rotational connection characteristics of the third rotating hinge 61 ensure that the middle area can also be adjusted in angle synchronously with the two frames, maintaining the consistency of the arc adjustment of the entire cabinet 200.

[0069] Meanwhile, the third magnetic connector 62 provides an additional magnetic fixing point for the LED display unit 300 in the middle area of ​​the housing 200, enhancing the ease of installation and removal and the reliability of connection.

[0070] With this setup, for splicing adjacent LED display units 300 within the same cabinet 200, no additional telescopic structure is needed. The contact plane is directly aligned using the third magnetic connector 62 built into the third rotating hinge 61. In other words, the precise fitting and positioning of adjacent LED display units 300 through the third magnetic connector 62 ensures that the splicing surfaces of adjacent LED display units 300 on the cabinet 200 are completely flat, achieving seamless splicing of adjacent LED display units 300 within the cabinet 200. This simplifies the internal structure while ensuring the integrity and consistency of the display surface.

[0071] Of course, depending on actual needs, the first magnetic connector 42, the second magnetic connector 52 and the third magnetic connector 62 can all be set as metal sheet structures of corresponding shapes, so as to magnetically attract and connect with the magnetic connector 301 provided on the LED display unit 300 through the metal sheet structure.

[0072] The third rotating hinge 61 includes several third hinge modules 611, third rotating connectors 612, and third rotating seats 613.

[0073] Each third hinge module 611 is provided with a third mounting groove 6111 for mounting the third magnetic connector 62. The structure and shape of the third mounting groove 6111 are adapted to the structure and shape of the third magnetic connector 62. The third mounting groove 6111 facilitates the quick positioning and installation of the third magnetic connector 62. Each third hinge module 611 is fitted with two second rotating shafts 614. The fitted second rotating shafts 614 cooperate with the third rotating connector 612 to realize the rotational connection between the modules.

[0074] The third rotating connector 612 is disposed between adjacent third hinge modules 611 and rotates in conjunction with the corresponding second rotating shaft 614, thereby connecting adjacent third hinge modules 611. Designing the third rotating hinge 61 as a modular structure of several third hinge modules 611 connected in series enables the third rotating hinge 61 to have multi-segment bending capability, making it easy to adapt to the diverse arc bending of the LED display unit 300.

[0075] Two third rotating seats 613 are located at both ends of several third hinge modules 611. The two third rotating seats 613 are used to allow several third hinge modules 611 to be rotatably connected between the middle of the first frame 1 and the second frame 2. The support design at both ends of the third rotating seats 613 ensures the overall stability of the modular chain structure and the two frames.

[0076] Please see Figure 5 To facilitate the positioning of adjacent LED display units 300, each of the third magnetic connectors 62 has a positioning plane 621 on the side opposite to the third hinge module 611. The positioning plane 621 is used to place adjacent LED display units 300 on the same reference plane.

[0077] In other words, the positioning plane 621 serves as the mounting reference plane for adjacent LED display units 300 while magnetically connecting them, ensuring that the installation height of each display unit is consistent and that adjacent LED display units 300 are on the same reference plane. This effectively eliminates the height difference of display units caused by thickness deviation of the magnetic component 301 or installation position error, improves the flatness of the entire screen and the consistency of the display effect. Furthermore, the integration of the positioning plane 621 with the magnetic function simplifies the structure and eliminates the need for additional leveling shims or support blocks.

[0078] In addition, the housing 200 includes a first frame 1 and a second frame 2, as well as a central control box module 3, which is located between the first frame 1 and the second frame 2.

[0079] Among them, a three-sided side-by-side structure is formed by introducing a central control box module 3, and each side adopts a combination layout of a first rotating hinge 41 at both ends, a second rotating hinge 51 and a third rotating hinge 61 in the middle.

[0080] Specifically, a first rotating hinge 41 is provided between the first ends of the central control box module 3 and the first frame 1, and between the first ends of the central control box module 3 and the second frame 2; a second rotating hinge 51 is provided between the second ends of the central control box module 3 and the first frame 1, and between the second ends of the central control box module 3 and the second frame 2; a third rotating hinge 61 is provided between the middle parts of the central control box module 3 and the first frame 1, and between the middle parts of the central control box module 3 and the second frame 2.

[0081] This configuration sets the entire cabinet 200 structure in a grid shape, with independent rotational connections between adjacent two frames via hinges. This allows the cabinet 200 to form more complex hyperboloid or multi-segment folded surface shapes, expanding the application scenarios of curved displays. At the same time, each pair of frames has three-point support and magnetic connection, ensuring the overall structural strength and display flatness of the multi-frame combination. Furthermore, the angles between each pair of frames can be adjusted independently, improving the flexibility and customizability of the cabinet 200's shape.

[0082] In summary, the entire cabinet 200 comprises three frames and six sections with three types of hinge structures: the top uses the first hinge structure 40, also known as the upper hinge bending joint, which mainly bears the angle bending and positioning support of the top LED display unit 300, adapting to the curvature requirements of the curved structure; the middle uses the third hinge structure 60, also known as the middle hinge bending joint, whose core function is to connect the upper and lower LED display units 300, ensuring the stability and flatness of the splicing of the middle LED display unit 300, and assisting in the calibration of the reference surface; the bottom uses the second hinge structure 50, also known as the lower hinge bending joint, which corresponds to the upper hinge bending joint of the adjacent cabinet 200, bearing the angle bending and load-bearing support of the bottom LED display unit 300, ensuring the consistency of the overall curved structure.

[0083] When the enclosure 200 is used for front maintenance, magnetic components 301 or magnets are assembled on the LED display unit 300, and various rotating hinges are assembled on the enclosure 200. The LED display unit 300 is then assembled on the enclosure 200. The LED display unit 300 is directly assembled on the enclosure 200 through the cooperation of the magnetic attraction and the rotating hinges, providing basic assembly conditions for front maintenance operations, while ensuring the firmness of the connection between the LED display unit 300 and the enclosure 200.

[0084] Telescopic positioning components 43 are used between adjacent cabinets 200. These components are used for alignment and calibration between cabinets 200. Their core function is to provide a unified reference plane for the LED display units 300 on each cabinet 200, thus fundamentally solving the problem of step differences in the splicing of LED display units 300 between adjacent cabinets 200. When adjacent cabinets 200 are not stacked, the telescopic positioning components 43 are in a retracted state, not occupying extra space and facilitating the storage and transportation of cabinets 200. When adjacent cabinets 200 are stacked, the telescopic positioning components 43 are switched to an extended state. In this way, the telescopic positioning components 43 align the two adjacent cabinets 200, thereby finding a unified reference plane for the LED display units 300 on adjacent cabinets 200. This avoids step differences caused by misalignment of cabinets 200, solves the problem of step differences in the display surfaces of LED display units 300 on adjacent cabinets 200, and provides stable reference support for the disassembly and assembly of LED display units 300 during pre-maintenance.

[0085] Within the same cabinet 200, the LED display units 300 do not require additional telescopic structures. The contact planes are directly aligned using the third magnetic connector 62 built into the third rotating hinge 61, achieving seamless splicing of adjacent LED display units 300 within the cabinet 200. Through the precise fit and positioning of the positioning plane 621 on the third magnetic connector 62, the splicing surfaces of adjacent LED display units 300 within the cabinet 200 are ensured to be completely flat, achieving seamless splicing of the LED display units 300 within the cabinet 200, simplifying the internal structure while maintaining the integrity of the display surface.

[0086] The arc adjustment mechanism 100 provided in this application embodiment is used to connect with the adjacent frame of the housing 200 to adjust and fix the curvature of the LED display unit 300.

[0087] Please see Figure 9 and Figure 10 The arc adjustment mechanism 100 includes a locking sleeve assembly 10 and a locking rod assembly 20. When the locking sleeve assembly 10 and the locking rod assembly 20 are in the unlocked state, the arc of the LED display unit 300 can be adjusted by the extension and retraction movement of the locking rod assembly 20. When the locking arm assembly 10 and the locking rod assembly 20 are in the interlocked state, the arc of the LED display unit 300 can be fixed.

[0088] Specifically, the locking rod assembly 20 is movably connected to the locking sleeve assembly 10. The locking rod assembly 20 is used for telescopic movement relative to the locking sleeve assembly 10 in a third direction. The length of the locking rod assembly 20 extending relative to the locking sleeve assembly 10 is used to control the chord length of the arc where the LED display unit 300 is located.

[0089] Please refer to the following: Figure 11 , Figure 12 and Figure 13The locking assembly 10 includes a locking housing 11, an angle limiting member 12, and an unlocking assembly 13.

[0090] Please refer to the following: Figure 14 The locking rod assembly 20 includes an adjusting rod body 21 and an adjusting block 23 built into the adjusting rod body 21.

[0091] Angle limiting member 12 is movably connected to the lock housing 11. Angle limiting member 12 is used to move along a first direction (perpendicular to a third direction). Angle limiting member 12 is configured to interlock the lock rod assembly 20 and the lock housing assembly 10 when connected to the adjusting block 23 of the lock rod assembly 20, and to unlock the lock rod assembly 20 and the lock housing assembly 10 when disengaged from the adjusting block 23 of the lock rod assembly 20. Unlocking member 13 is movably connected to the lock housing 11. Unlocking member 13 is used to move along a second direction (perpendicular to both the first direction and the third direction) to trigger angle limiting member 12 to disengage from or connect to the lock rod assembly 20.

[0092] It should be noted that the first direction mentioned above can be as follows: Figure 1 or Figure 9 The Z-axis direction is shown, and the second direction can be as follows: Figure 1 or Figure 9 As shown in the Y-axis direction, the third direction can be as follows: Figure 1 or Figure 9 The X-axis direction is shown.

[0093] With this configuration, by triggering the movement of the angle limiting member 12 through the unlocking component 13, the angle limiting member 12 can be disengaged from the adjusting block 23 of the locking rod assembly 20, thereby unlocking the locking rod assembly 20 and the locking sleeve assembly 10 to facilitate the adjustment of the curvature of the LED display unit 300. After the adjustment is completed, the locking rod assembly 20 and the locking sleeve assembly 10 can be relocked by simply triggering the angle limiting member 12 to move in the opposite direction to the unlocking, thereby fixing the curvature of the LED display unit 300.

[0094] The entire process can be completed with one hand, with few steps and convenient and quick arc adjustment. Whether adjusting the inner or outer arc of a single box 200, the above-mentioned arc adjustment operation method can be used, greatly improving the efficiency of arc adjustment.

[0095] Please refer to the following: Figure 11 , Figure 12 and Figure 13 The unlocking component 13 includes an unlocking button 131 and a first limiting pin 132. The unlocking button 131 is provided with a first limiting oblique hole 13121. The first limiting pin 132 passes through and cooperates with the first limiting oblique hole 13121 and the angle limiting member 12. The first limiting pin 132 and the first limiting oblique hole 13121 are in a movable cooperation, so that when the unlocking button 131 is pressed, the angle limiting member 12 is triggered to disengage from the locking rod component 20.

[0096] In this way, when the user presses the unlock button 131, due to the inclined surface cooperation between the first limiting pin 132 and the first limiting inclined hole 13121, the linear movement of the unlock button 131 along the second direction is converted into the linear movement of the angle limiting member 12 along the first direction, thereby triggering the angle limiting member 12 to disengage from the locking rod assembly 20 and realizing the unlocking function.

[0097] This type of oblique hole-pin mating structure efficiently transforms the pressing action into the unlocking action. The structure is compact and the transmission is reliable. It not only simplifies the transmission structure and reduces the number of parts, thus reducing manufacturing costs and assembly difficulty, but also the oblique surface mating has a self-locking characteristic, which can ensure that the unlocking button 131 remains stable when not pressed, avoiding accidental triggering of unlocking.

[0098] In some embodiments, there are two locking rod assemblies 20 and two angle limiting members 12. The two angle limiting members 12 are movably connected to both ends of the lock housing 11, and the two angle limiting members 12 are used to lock and unlock the two locking rod assemblies 20 respectively.

[0099] Furthermore, the lock assembly 10 also includes an unlocking link 14, the first end (lower end) of the unlocking link 14 being hinged to the angle limiting member 12 of the first end (lower end) of the lock housing 11. The unlocking assembly 13 also includes a second limiting pin 133, and the unlocking button 131 is provided with a second limiting oblique hole 13122. The second limiting pin 133 passes through and cooperates with the second limiting oblique hole 13122 and the second end (upper end) of the unlocking link 14, and the second limiting pin 133 and the second limiting oblique hole 13122 are in movable cooperation.

[0100] In this way, when the unlock button 131 is pressed, due to the inclined surface cooperation between the first limiting pin 132 and the first limiting inclined hole 13121, the linear movement of the unlock button 131 along the second direction is converted into the linear movement of the upper angle limiting member 12 along the first direction, thereby realizing the function of unlocking the upper locking rod assembly 20; at the same time, due to the inclined surface cooperation between the second limiting pin 133 and the second limiting inclined hole 13122, the linear movement of the unlock button 131 along the second direction is converted into the linear movement of the unlocking link 14 and the lower angle limiting member 12 along the first direction, triggering the unlocking link 14 to drive the lower angle limiting member 12 to disengage from the corresponding locking rod assembly 20, thereby realizing the function of unlocking the lower locking rod assembly 20.

[0101] With this configuration, this embodiment achieves synchronous unlocking control of the two locking rod assemblies 20 through a single unlocking button 131 in conjunction with the linkage mechanism. The user only needs to perform a single press operation to unlock both ends, significantly improving the ease of operation and user experience. At the same time, the linkage transmission structure ensures the synchronicity and consistency of unlocking at both ends, avoiding the cumbersome operation caused by step-by-step unlocking. Moreover, this linkage structure is simple and reliable, requiring no complex electronic control system, which reduces costs and improves the stability and security of the system.

[0102] In some embodiments, the lock housing 11 includes a handle lock sleeve 111 and a lock sleeve sealing plate 112. The lock sleeve sealing plate 112 and the handle lock sleeve 111, when combined, form a receiving cavity for accommodating the unlocking linkage 14 and the angle limiting member 12.

[0103] In terms of positioning structure, the handle lock sleeve 111 is provided with a first protrusion 1111, the lock sleeve sealing plate 112 is provided with a second protrusion 1122, and the angle limiting member 12 is movably embedded between the first protrusion 1111 and the second protrusion 1122.

[0104] As can be seen, the above embodiment adopts a split structure design for the lock housing 11. The split structure facilitates mold manufacturing and mass production, which is beneficial to improving product quality consistency and reducing manufacturing costs. The first protrusion 1111 and the second protrusion 1122 form a guide and limiting structure for the angle limiting member 12, ensuring the accuracy and stability of the movement of the angle limiting member 12. At the same time, the closed structure of the receiving cavity effectively protects the internal transmission components from external environmental corrosion such as dust and moisture, extending the service life of the lock.

[0105] To facilitate the reset of the unlock button 131 after release, the lock sleeve assembly 10 also includes a first reset elastic member 15. Specifically, the lock sleeve housing 11, the lock sleeve sealing plate 112, and the unlock button 131 are respectively provided with a first guide post 1121 and a second guide post 13112. The two ends of the first reset elastic member 15 are respectively sleeved on the first guide post 1121 and the second guide post 13112. The first reset elastic member 15 is used to provide elastic force to the unlock button 131 so that the unlock button 131 has a tendency to move away from the first guide post 1121.

[0106] Furthermore, the locking sleeve assembly 10 also includes a second reset elastic member 16, the two ends of which abut against the angle limiting member 12 and the locking sleeve housing 11 respectively. The second reset elastic member 16 is used to provide elastic force to the angle limiting member 12 so that the angle limiting member 12 has a tendency to reset, that is, to connect the locking rod assembly 20.

[0107] By setting the first reset elastic element 15 and the second reset elastic element 16, the automatic reset functions of the unlock button 131 and the angle limit element 12 are realized respectively, ensuring that each component can quickly and accurately return to the initial position after each unlocking operation, preparing for the next locking, improving the automation level and operation continuity of the lock; and the dual reset design makes the unlocking and locking actions more sensitive and reliable, effectively preventing the lock failure caused by component jamming, and improving the overall security and service life.

[0108] In some embodiments, the unlock button 131 is provided with a first limiting surface 13111, the lock housing 11 is provided with a receiving groove 1112, the unlock button 131 is movably embedded in the receiving groove 1112, the receiving groove 1112 is provided with a second limiting surface 11121 inside, the first limiting surface 13111 and the second limiting surface 11121 are in contact and cooperate to restrict the movement of the unlock button 131.

[0109] In this embodiment, the first limiting surface 13111 and the second limiting surface 11121 form a contact engagement relationship. The physical contact between the two limiting surfaces restricts the travel and direction of the unlock button 131, preventing excessive displacement or deviation. This effectively prevents the unlock button 131 from tilting, shaking, or excessively displacing during pressing, ensuring smooth pressing operation and accurate unlocking action. Furthermore, compared to point contact or line contact, this surface contact limiting method has better stability and wear resistance.

[0110] Please refer to the following: Figure 13 The unlock button 131 includes a pressing part 1311 and a trigger part 1312. The first limiting oblique hole 13121 and the second limiting oblique hole 13122 are both provided on the trigger part 1312. The pressing part 1311 is used for the user's hand to contact and press.

[0111] In the guide structure, sliders 13123 are symmetrically arranged on both sides of the trigger part 1312. Correspondingly, a sliding groove 11122 is also provided inside the receiving groove 1112. The sliders 13123 and the sliding groove 11122 slide together.

[0112] In this way, when the user presses the pressing part 1311, the trigger part 1312 moves smoothly in a straight line by sliding the slider 13123 in the slide groove 11122, and then drives the angle limiting member 12 through the oblique hole to complete the unlocking action.

[0113] As can be seen, the sliding engagement between slider 13123 and groove 11122 provides precise linear guidance for unlock button 131, ensuring that trigger part 1312 can move smoothly and without deviation during pressing, guaranteeing accurate engagement between first limiting oblique hole 13121 and first limiting pin 132, and improving the reliability and consistency of unlocking transmission; at the same time, the design of double-sided slider 13123 enhances the stability of guidance and anti-torsion ability, preventing the button from deflecting and jamming when pressed.

[0114] Please refer to the following: Figure 9 and Figure 10 The end of the locking sleeve assembly 10 away from the locking rod assembly 20, and the ends of the two locking rod assemblies 20 away from the locking sleeve assembly 10 are all hinged with locking seats 30. That is to say, a single mechanism is provided with a total of four locking seats 30. Each locking seat 30 is used to connect to the cabinet 200 of the LED display 1000. Each locking seat 30 can rotate. Each locking seat 30 is fixed to the I-shaped structure by fasteners 32.

[0115] Specifically, the lock seat 30 is hinged to the lock sleeve assembly 10 or the lock rod assembly 20 via a hinge shaft assembly 31, which includes a base shaft, a base sleeve, and a screw. The axes of the base shaft and the base sleeve are both arranged along a first direction, allowing the lock seat 30 to rotate relative to the I-shaped structure about the axis of the first direction, so as to allow for adaptive rotational adjustment according to the actual arc shape to be adjusted.

[0116] Each lock seat 30 is equipped with two locking screws, and the lock seat 30 is locked to the cabinet 200 of the LED display screen 1000 by the two locking screws.

[0117] Please refer to the following: Figure 14 The locking lever assembly 20 includes an adjusting lever body 21 and an adjusting block 23 built into the adjusting lever body 21; the two can also be an integral structure. Alternatively, the adjusting lever body 21 may be provided with an adjustment scale 22 for marking the extension length of the locking lever assembly 20 relative to the locking sleeve assembly 10, so that the operator can visually observe the curvature of the current display screen.

[0118] Among them, the adjusting block 23 is an adjusting tooth block, and the adjusting tooth block is provided with a number of spaced tooth grooves 231. Correspondingly, the angle limiting member 12 is provided with a number of racks 121 (limiting teeth or limiting keys). The racks 121 are inserted into the corresponding tooth grooves 231 to fix the extension length of the locking rod assembly 20 relative to the locking sleeve assembly 10.

[0119] In the LED display screen 1000 of this application, the arc adjustment mechanism 100 is connected to the cabinet 200 to adjust the arc of the LED display unit 300 and fix the arc of the LED display unit 300.

[0120] Specifically, such as Figure 1In the LED display screen 1000 shown, taking a single cabinet as an example, the single cabinet is equipped with two arc adjustment mechanisms 100. One end of the left arc adjustment mechanism 100 is connected to the second frame 2 through the lock seat 30, and the other end is connected to the central control box assembly 3 in the middle through the lock seat 30. One end of the right arc adjustment mechanism 100 is connected to the first frame 1 through the lock seat 30, and the other end is connected to the central control box assembly 3 in the middle through the lock seat 30.

[0121] Working principle: First, install the two arc adjustment mechanisms 100 on the housing 200. Hold the left and right locking sleeve assemblies 10 with both hands and press the unlock button 131 with your thumbs. This triggers the angle limiting member 12 to move downward in a limited trajectory, thereby disengaging the angle limiting member 12 from the toothed groove 231 of the adjusting block 23. At this time, hold the locking sleeve assemblies 10 with both hands and stretch them left and right to adjust the inner or outer arc of a single housing 200. Conversely, when you release the unlock button 131 with your thumbs, the angle limiting member 12 returns to its initial state under the action of the spring, so that the angle limiting member 12 and the toothed groove 231 of the adjusting block 23 are re-engaged, thus maintaining the arc surface with the adjusted angle.

[0122] This application utilizes the characteristics of an arc and employs a method of changing the chord length to control the change in the arc shape of the screen, thereby enabling arbitrary transformation of the screen within a certain arc and achieving seamless splicing of the arc shape of the screen. Specifically, it can realize the adjustment of the S-shaped arc surface of a single cabinet, the maximum inner arc and the maximum outer arc of a single cabinet, making the arc surface of the screen more natural and the transition more uniform and delicate, thereby improving the arc display effect.

[0123] Furthermore, during the arc adjustment operation, only one pressing operation step is needed to switch the locking rod assembly 20 from the locked state to the unlocked state, which can be completed with one hand, facilitating subsequent arc adjustment operations. With this setting, the operation steps are few, and the arc adjustment is convenient and quick. Whether adjusting the inner arc or the outer arc of a single box, the above-mentioned arc adjustment operation method can be used, which greatly improves the efficiency of arc adjustment.

[0124] like Figures 15 to 18 As shown, the LED display unit 300 provided in this embodiment includes a base shell 70 and an LED display module 80. The base shell 70 is used to mount the LED display module 80, and the base shell 70 is an integral structure, such as an integrally injection-molded structure. The base shell 70 includes a section along... Figure 16 The X-axis direction shows several housings 71 arranged together, with adjacent housings 71 connected by an elastic connection structure 72.

[0125] For example, the bottom shell 70 is designed to be 500mm long by using (7×2+1) vertically small-sized shell 71 integrally molded.

[0126] The elastic connection structure 72 is configured to allow relative angular displacement between adjacent housings 71 to accommodate the arcuate bending of the LED display module 80 of the LED display unit 300.

[0127] It should be noted that angular displacement usually refers to the angle through which an object rotates relative to its initial state when it rotates around a certain axis. However, the relative angular displacement in this application emphasizes that it is the relative motion between two adjacent shells 71: that is, the angle through which one shell 71 rotates relative to the other shell 71. Specifically, in the structure of the bottom shell 70, the two adjacent shells 71 connected by the elastic connection structure 72 can rotate relative to each other around the connecting axis under the action of external force, thereby forming a certain angle change.

[0128] The base shell 70 provided in this application adopts an integrated structure, eliminating the need for additional assembly components and reducing the number of parts. Simultaneously, the elastic connection structure 72 enables relative angular displacement between adjacent shells 71, achieving flexible adjustment. This allows the LED display module 80 to be adjusted at any angle within the range of inner and outer curvature, i.e., stepless adjustment. It offers a wide angle range, strong adaptability, and reduces assembly steps, making operation convenient and quick. Adjustment of either the inner or outer curvature of a single shell can be directly achieved, significantly improving the overall assembly efficiency of the curved screen and demonstrating a clear cost advantage and market competitiveness.

[0129] Since the two adjacent shells 71 connected by the elastic connection structure 72 can rotate relative to each other under the action of external force, thus forming a certain angle change, by applying external force to the box 200 connected to the bottom shell 70, the S-shaped arc surface adjustment of a single box can be achieved, such as the maximum inner arc and the maximum outer arc of a single box 200.

[0130] like Figure 18 and Figure 19 As shown, the bottom shell 70 also includes an anti-detachment structure 73, which is disposed on the adjacent shell 71 and is used to limit the relative angular displacement range between the adjacent shell 71.

[0131] As can be seen, an anti-detachment structure 73 has been added to the structural design of the bottom shell 70. This structure is arranged between two adjacent shells 71, and its core function is to mechanically limit the relative angular displacement range between adjacent shells 71. Through this design, when multiple shells 71 are connected by the elastic connection structure 72, the anti-detachment structure 73 can effectively prevent excessive deflection or misalignment between adjacent shells 71, ensuring the stability and reliability of the overall structure.

[0132] In this way, by setting an anti-detachment structure 73 between adjacent shells 71, the relative angular displacement range between the two shells 71 is effectively limited, avoiding connection failure caused by excessive bending or torsion. This significantly improves the structural integrity and safety of the bottom shell 70 during deformation, prevents the shell 71 from detaching or separating when subjected to external forces, thereby extending the product's service life and improving assembly reliability.

[0133] In some embodiments, the anti-detachment structure 73 includes a limiting boss 731 provided on one housing 71 and a limiting groove 732 provided on the other housing 71.

[0134] The limiting boss 731 extends into the limiting groove 732 and can slide within the limiting groove 732. The inner wall of the limiting groove 732 is used to stop the limiting boss 731 to limit the relative angular displacement range between adjacent shells 71, thereby limiting the maximum inner arc (e.g., 90°) and maximum outer arc (e.g., 90°) of the bottom shell 70 bending.

[0135] Specifically, the anti-detachment structure 73 adopts a mechanical limiting method with a concave-convex fit. During assembly, the limiting boss 731 extends into the limiting groove 732. When adjacent shells 71 rotate relative to each other, the inner wall of the limiting groove 732 will form a stop contact with the limiting boss 731, thereby physically limiting the maximum relative angular displacement between the two shells 71.

[0136] In this way, the convex-concave mating structure of the limiting boss 731 and the limiting groove 732 achieves precise mechanical limiting of the relative angular displacement of adjacent shells 71. The inner wall of the limiting groove 732, as a rigid stop surface, can effectively prevent the limiting boss 731 from moving further, thereby reliably limiting the maximum rotation angle between the two shells 71 and preventing structural damage or connection failure caused by excessive bending.

[0137] Meanwhile, the aforementioned limiting boss 731 and limiting groove 732 can be integrally formed on the corresponding housing 71, making the structure simple and compact, easy to process and manufacture, and easy to assemble, thus reducing production costs while ensuring the reliability of the limiting mechanism.

[0138] More specifically, such as Figure 19 As shown, the limiting boss 731 has a T-shaped structure.

[0139] The limiting boss 731 is designed as a T-shaped structure, that is, the limiting boss 731 has the following characteristics: Figure 19 The longitudinally extending head and as shown Figure 19The laterally extending rod, as shown, forms a T-shaped cross-section. This T-shaped structure, after extending into the limiting groove 732, allows its longitudinal head to form a larger contact area and a more stable stop with the inner wall of the limiting groove 732. This design significantly enhances the stability and shear resistance of the fit between the limiting boss 731 and the limiting groove 732, thereby improving the stop strength and limiting reliability. It effectively prevents the limiting boss 731 from detaching from the limiting groove 732 or from breaking under significant external force, further enhancing the load-bearing capacity and structural safety of the anti-detachment structure 73.

[0140] In some embodiments, the resilient connection structure 72 extends along... Figure 18 The Z-axis direction is spaced apart, or the elastic connection structure 72 includes, as shown, along the Z-axis direction. Figure 18 The diagram shows a multi-segment structure arranged at intervals along the Z-axis. A clearance gap 74 is provided between adjacent elastic connection structures 72 to allow for the avoidance and anti-detachment structure 73.

[0141] This effectively creates multiple connection points between adjacent housings 71. Simultaneously, a clearance gap 74 is reserved between two adjacent elastic connection structures 72. The spatial position of this clearance gap 74 corresponds precisely to the installation position of the anti-detachment structure 73, thus providing the necessary installation space and movement clearance space for the anti-detachment structure 73.

[0142] In other words, by extending the elastic connection structure 72 along... Figure 18 The Z-axis direction is spaced apart and a clearance gap 74 is formed between them. This ensures the elastic connection function of the elastic connection structure 72 to the adjacent shell 71, and provides sufficient arrangement space and movement avoidance area for the anti-detachment structure 73. This avoids structural interference between the elastic connection structure 72 and the anti-detachment structure 73, so that the two functional structures can coexist reasonably in a limited space, optimize the internal space layout of the bottom shell 70, and improve the structural compactness.

[0143] In addition, the housing 71 has two main functional surfaces: a mounting surface 711 for mounting the LED display module 80, and a connecting surface 712 for connecting with the cabinet 200. Depending on the actual application requirements, the mounting surface 711 can be designed as a planar structure, suitable for flat panel display applications; or, the mounting surface 711 can also be designed as a curved structure adapted to curved surfaces, suitable for curved display screens or applications requiring curved shapes.

[0144] It should be noted that by designing the mounting surface 711 to be either flat or curved, the base shell 70 can flexibly adapt to two different application scenarios: flat display and curved display. When the mounting surface 711 is curved, it can perfectly match the needs of curved displays, expanding the product's applicability and market adaptability, meeting diverse display design requirements, and improving the product's versatility and design flexibility.

[0145] In some embodiments, the elastic connection structure 72 includes an elastic hinge 721, the two ends of which are integrally connected to adjacent housings 71, and the elastic hinge 721 extends along... Figure 16 The dimension (width) shown in the X-axis direction is smaller than that of the housing 71 along the X-axis. Figure 16 The dimension (width) along the X-axis is shown.

[0146] The flexible connection structure 72 specifically adopts the structure of a flexible hinge 721. The two ends of the flexible hinge 721 form an integral connection structure with the two adjacent shells 71, rather than a traditional split hinge or bolt connection. In addition, the dimension of the flexible hinge 721 along the arrangement direction of the shells 71 is designed to be smaller than the dimension of the shells 71 along the same direction, so that the flexible hinge 721 presents a relatively narrow feature both visually and structurally.

[0147] The elastic hinge 721 is integrally connected with the housing 71, eliminating the assembly gaps and loose connections that exist in traditional split connections, improving the integrity and reliability of the connection, and simplifying the assembly process. By designing the width of the elastic hinge 721 to be smaller than the width of the housing 71, the amount of material used in the connection part is reduced while ensuring the elastic deformation capacity, achieving a lightweight design. The narrower elastic hinge 721 provides greater freedom for the relative rotation between adjacent housings 71, which is conducive to achieving more flexible bending deformation.

[0148] In this embodiment, the elastic hinge 721 has a wave-shaped cross section, which is one or more of the following: sawtooth, U-shaped, or wavy.

[0149] like Figures 20 to 22 As shown, the cross-sectional shape of the elastic hinge 721 is designed as a waveform structure. This waveform cross-section can specifically take the form of a sawtooth shape (composed of continuous triangular waveforms), a U-shape (composed of semi-circular arcs), or a wave shape (composed of continuous sine curves), or a combination of these forms. This waveform cross-sectional structure endows the elastic hinge 721 with the ability to undergo elastic deformation when subjected to force.

[0150] The above-mentioned configuration fully utilizes the compressibility and extensibility of the waveform structure under stress, enabling the elastic hinge 721 to achieve elastic deformation through the unfolding or compression of the waveform when subjected to bending moment, thereby allowing controllable relative rotation between adjacent shells 71. At the same time, the waveform cross-section structure maintains a certain structural stiffness while providing elastic deformation capability, and can provide restoring moment after deformation, so that the shell 71 can spring back to the initial position after the external force is removed. Moreover, the waveform structure has good fatigue resistance and can withstand repeated bending without easily failing, significantly improving the service life and reliability of the elastic hinge 721.

[0151] The LED display unit 300 provided in this application includes an LED display module 80 and a base housing 70 connected to the LED display module 80 as described in the above specific embodiments. The LED display module 80 is installed in the base housing 70, and the base housing 70 is used to support and position the LED display module 80.

[0152] Please see Figure 23 and Figure 24 The central control box module 3 provided in this application embodiment includes a central frame component 91 and a control box component 92.

[0153] The middle frame assembly 91 includes a rotating support structure 911 and a first rotating fastener 912; the control box assembly 92 includes a rotating connection structure 921 and a second rotating fastener 922. The rotating connection structure 921 is connected to the rotating support structure 911 so that the control box assembly 92 can rotate relative to the middle frame assembly 91. After the second rotating fastener 922 and the first rotating fastener 912 are docked, the control box assembly 92 is fixed to the middle frame assembly 91.

[0154] Please see Figure 25 The rotating support structure 911 can be a rotating support groove, and the rotating connection structure 921 can be a clip head. The clip head is inserted into the rotating support groove so that the control box assembly 92 can rotate relative to the middle frame assembly 91.

[0155] Specifically, the card head is located at the lower end of the control box assembly 92, and the rotating support groove is correspondingly located at the lower end of the middle frame assembly 91, so that the control box assembly 92 can rotate relative to the middle frame assembly 91 around its end.

[0156] In other words, by adopting the above-mentioned limiting rotation docking structure design, the control box assembly 92 (built-in central control plate 925) can be rotated and installed. The control box assembly 92 is installed and fixed by rotating the limiting rotation point formed by the combination of the above-mentioned clip and the rotating support groove to a specific angle in a specified direction.

[0157] It should be noted that the control box assembly 92 in the existing system needs to be locked to the middle frame assembly 91 by the latches on both sides. This operation requires two hands to perform initial positioning during assembly and disassembly, which is cumbersome, inefficient, and difficult to meet the needs of rapid assembly and maintenance.

[0158] In contrast, the central control box module 3 provided in this application, through the cooperation of the rotating connection structure 921 and the rotating support structure 911, and the docking design of the first rotating fixing member 912 and the second rotating fixing member 922, enables the control box assembly 92 to rotate relative to the central frame assembly 91. The user only needs to complete the rotation operation of the control box assembly 92 with one hand to realize the rotation installation and fixation of the control box assembly 92, which significantly improves the assembly convenience of the control box assembly 92 and optimizes the user experience.

[0159] Please see Figure 24 The control box assembly 92 also includes a control box housing 923, and the second rotating fixing member 922 includes a rotating plate 9221 and a connecting member 9222.

[0160] The rotating plate 9221 is rotatably connected to the control box housing 923 via a rotating shaft; the connector 9222 is fixed on the rotating plate 9221 and is used to dock with the first rotating fixing member 912.

[0161] Specifically, the first rotating fastener 912 may be a first snap-fit ​​arm (the first snap-fit ​​arm has a first snap hook structure) extending from the side wall of the middle frame assembly 91 near the control box assembly 92, and the connector 9222 may be a second snap-fit ​​arm (the second snap-fit ​​arm has a second snap hook structure) extending from the side wall of the rotating plate 9221 near the middle frame assembly 91.

[0162] In this way, when the control box assembly 92 rotates relative to the middle frame assembly 91 until the second latch structure engages with the first latch structure, the docking and installation of the control box assembly 92 and the middle frame assembly 91 can be achieved.

[0163] Furthermore, by setting a rotatable rotating plate 9221, the connector 9222 can be finely adjusted in angle according to actual assembly requirements. Thus, during the rotation of the control box assembly 92 relative to the middle frame assembly 91, the connector 9222 can adaptively adjust its position to precisely align with the first rotating fixing member 912, effectively reducing assembly accuracy requirements and improving assembly efficiency and docking reliability.

[0164] Please see Figure 24The control box assembly 92 also includes an elastic element 924, the two ends of which are connected to the rotating plate 9221 and the control box housing 923 respectively. The elastic element 924 is used to provide elastic force to the rotating plate 9221 to ensure that the connector 9222 and the first rotating fixing member 912 are tightly connected.

[0165] Of course, in order to ensure the stability of the connection, the number of the above-mentioned elastic element 924 and connector 9222 can be set to two. The first ends of the two elastic elements 924 are respectively connected to the lower position of the two connectors 9222, so that the rotating plate 9221 maintains the tendency of the two connectors 9222 being tightly engaged with the two first rotating fixing elements 912 respectively.

[0166] In this way, through the elastic pre-tightening effect of the elastic element 924, the connector 9222 and the first rotating fixing element 912 always maintain a tight fit after docking, effectively compensating for the fit gap caused by manufacturing tolerances or long-term use, preventing the control box assembly 92 from loosening in a vibration environment, and significantly improving the stability and vibration resistance of the connection.

[0167] In some embodiments, the first rotating fastener 912 and the connector 9222 are one or more of a latching fastener, a magnetic fastener, and a snap-fit ​​and slot assembly.

[0168] By adopting mature quick-connect structures such as hooks, magnetic attraction, or snap-on slots, the docking method between the first rotating fixing part 912 and the connector 9222 can be flexibly configured according to the load requirements, disassembly and assembly frequency, and cost budget of different application scenarios, which not only ensures the reliability of the connection, but also takes into account the convenience and economy of operation.

[0169] Please see Figure 23 and Figure 24 The central control box module 3 also includes a locking mechanism 93, which is disposed in the central frame assembly 91 and / or the control box assembly 92.

[0170] After the second rotating fastener 922 and the first rotating fastener 912 are docked, the locking mechanism 93 is used to further lock the control box assembly 92 and the middle frame assembly 91.

[0171] As can be seen from the above, by fitting the locking head and the rotating support groove at the end of the component, the control box component 92 can rotate and open and close with the end as the fulcrum, forming a hinge-like flip structure. Users can easily lift or lower the control box component 92 with one hand, greatly simplifying the assembly and disassembly process. Furthermore, a locking mechanism 93 can be added. After the second rotating fixing member 922 and the first rotating fixing member 912 have completed their initial docking, the locking mechanism 93 provides secondary locking protection, forming a double insurance mechanism. This effectively prevents the first rotating fixing member 912 from accidentally separating from the second rotating fixing member 922 due to misoperation or external impact, significantly improving the overall structural safety and reliability.

[0172] In some embodiments, the locking mechanism 93 may be configured to include a male locking end and a female locking end, with the female locking end located on the middle frame assembly 91 and the male locking end located on the control box assembly 92. Locking of the control box assembly 92 and the middle frame assembly 91 is achieved by engaging the male locking end and the female locking end.

[0173] Please see Figure 24 The control box assembly 92 includes a central control board 925. In a conventional enclosure 200, the central control board 925 is usually fixed to the middle frame assembly 91. During maintenance, the control box assembly 92 must be disassembled first, and then the central control board 925 must be disassembled, which involves a secondary disassembly problem. However, in this application, the central control board 925 is located in the control box assembly 92, that is, the control box assembly 92 is designed as a module with the central control board 925 built in. Disassembly can be completed in one step without the need for secondary disassembly of the central control board 925, which further improves the assembly and disassembly efficiency.

[0174] Please see Figure 24 , Figure 26 and Figure 27 The central control box module 3 also includes a connector 94, which includes a socket 941 and a plug 942. The socket 941 is connected to the middle frame assembly 91; the plug 942 is connected to the central control plate 925 and is used to rotate and insert into the socket 941 to achieve electrical connection with the socket 941.

[0175] The connector 941 has a groove 9411 with a built-in conductive spring 9412; the plug 942 has a protrusion 9421 with a conductive protrusion 9422. When the plug 942 is inserted into the connector 941, the protrusion 9421 is embedded in the groove 9411, so that the conductive protrusion 9422 and the conductive spring 9412 come into contact and abut against each other, so as to realize the electrical connection between the plug 942 and the connector 941.

[0176] In other words, the connector 94 is engaged with the groove 9411 of the conductive spring 9412 in the socket 941 and the protrusion 9421 of the plug 942 with the conductive protrusion 9422, so that the conductive protrusion 9422 and the conductive spring 9412 make elastic contact and abut against each other, so that the plug 942 and the socket 941 maintain electrical conductivity.

[0177] The use of a spring-plate-protrusion elastic contact structure instead of traditional rigid pins eliminates the problem of rigid stress concentration during insertion and removal. Simultaneously, the conductive spring 9412 provides elastic cushioning during insertion, effectively absorbing mechanical impacts and significantly reducing the risk of terminal damage, thereby improving long-term connection stability. Furthermore, the interlocking guide structure of the groove 9411 and protrusion 9421 enables rapid alignment, reducing the difficulty of insertion and removal operations. The elastic contact method also makes the insertion and removal force more gentle and controllable, avoiding mechanical damage caused by interference fits and extending the service life of the connector 94. In addition, the elastic contact between the conductive spring 9412 and the conductive protrusion 9422 forms a continuous and stable contact pressure, which, compared to the fixed contact point of rigid pins, can compensate for displacement caused by manufacturing tolerances and thermal expansion and contraction, maintaining stable electrical conductivity.

[0178] In this embodiment, the connector 942 is rotatably inserted into the support connector 941.

[0179] In other words, the connector 942 is not directly inserted into the connector 941 in a straight line, but rather it rotates along with the control box assembly 92 to achieve docking with the connector 941. This rotary plugging method changes the traditional axial direct insertion operation mode, and completes the electrical connection through circumferential rotation.

[0180] The rotary connector can achieve progressive guidance by using the contour matching of the protrusion 9421 and the groove 9411, reducing the initial alignment accuracy requirements. At the same time, it can smoothly transition the insertion and extraction resistance during rotation, avoiding damage to the terminals caused by instantaneous impact loads, and improving the operating feel and connection reliability.

[0181] To facilitate rotational insertion and removal, the groove 9411 is oriented as follows... Figure 26 The inner walls on both sides in the Z-axis direction shown are spaced apart from the protrusion 9421; in other words, the groove 9411 is along the Z-axis direction as shown in the figure. Figure 26 The Z-axis direction shown has clearance space on both sides, so that the protrusion 9421 can be rotatably inserted into or pulled out of the groove 9411.

[0182] It is understandable that by adjusting the groove 9411 and the protrusion 9421 as follows: Figure 26The dimensional relationship along the Z-axis (usually the length direction) is defined to maintain an appropriate clearance between the two, thus providing rotational space for the bump 9421. This clearance fit eliminates the precise dimensional control required for interference fits, reducing machining accuracy requirements and manufacturing costs. Simultaneously, it provides the bump 9421 with rotational freedom, allowing for adaptive adjustment of the insertion angle to compensate for manufacturing accuracy and installation position deviations. This avoids jamming or terminal deformation caused by forced insertion, significantly improving assembly tolerance and ease of operation.

[0183] In some embodiments, the groove 9411 is as follows Figure 26 The inner walls on both sides along the X-axis direction are provided with spaced conductive spring pieces 9412, and the protrusions 9421 are arranged along... Figure 26 The outer walls on both sides in the X-axis direction are provided with spaced conductive protrusions 9422. When the protrusion 9421 is rotated and inserted into the groove 9411, the conductive protrusions 9422 and the conductive spring pieces 9412 make contact and abut against each other in a one-to-one correspondence.

[0184] In this embodiment, multiple sets of conductive spring pieces 9412 are arranged on the inner walls of both sides of the groove 9411 in the width direction, and correspondingly, multiple sets of conductive protrusions 9422 are arranged on the outer walls of both sides of the protrusion 9421, forming a double-row symmetrical contact structure. When the protrusion 9421 is rotated and inserted into the groove 9411, the conductive protrusions 9422 on both sides synchronously contact the corresponding conductive spring pieces 9412 one after another and elastically abut against each other.

[0185] This double-row symmetrical contact structure establishes multiple parallel electrical channels simultaneously in a single insertion action, significantly improving the current carrying capacity and signal transmission density of connector 94; the progressive contact characteristics during the rotation insertion process enable each group of contacts to conduct sequentially, and the symmetrical layout also ensures a balanced distribution of contact pressure, enhancing mechanical stability and vibration resistance.

[0186] In this embodiment, the groove 9411 is along the... Figure 26 The distance between the two conductive springs 9412 on both sides of the X-axis direction shown is smaller than that between the bumps 9421 and the bumps 9421. Figure 26 The distance between the two conductive protrusions 9422 on both sides of the X-axis direction is shown.

[0187] In other words, the spacing between the spring tabs is slightly smaller than the spacing between the protrusions. As a result, when the protrusion 9421 is inserted into the groove 9411, the conductive protrusions 9422 on both sides exert an outward expanding compressive force on the conductive spring tab 9412, while the spring tab, due to the spacing limitation, generates a reverse elastic clamping force. This interference fit design allows the conductive spring tab 9412 to form a ring-like elastic clamping around the conductive protrusion 9422, generating a continuous and stable positive contact pressure, effectively overcoming the problem of contact resistance fluctuations. Furthermore, this elastic clamping mechanism can automatically compensate for contact slack caused by wear, significantly improving the reliability of the electrical connection.

[0188] Understandably, the connector 942, as the male end, replaces the traditional pin with a raised conductive block (a protrusion 9421 with a conductive protrusion 9422); the receiver 941, as the female end, replaces the traditional socket with a groove 9411 containing a conductive spring 9412. When the control box assembly 92 is locked, the conductive protrusion 9422 presses against the conductive spring 9412 to achieve conductivity. When the control box assembly 92 is flipped open, the two parts disengage directly, eliminating the risk of the traditional pin breaking in the socket during flipping.

[0189] In some embodiments, the connector 942 includes a fixing base 9423, which is spaced apart from the protrusion 9421 in the insertion direction. Two rows of spring pins 9426 are provided between the fixing base 9423 and the protrusion 9421. Two rows of conductive protrusions 9422 are provided, protruding from the protrusion 9421, and the conductive protrusions 9422 and spring pins 9426 are connected in a one-to-one correspondence. In this way, a fixing base 9423 is added to the connector 942, and an elastic electrical connection is achieved between the fixing base 9423 and the conductive protrusions 9422 on the protrusion 9421 through the array of spring pins 9426.

[0190] The connector 942 is configured in such a way that the elastic deformation capability of the spring pin 9426 provides the axial floating degree of freedom for the bump 9421, so that the bump 9421 can adaptively adjust its position during the insertion process to match the groove 9411 of the connector 941, reducing the rigid alignment requirements; at the same time, the spring pin 9426, as an intermediate elastic link, can absorb the mechanical impact and vibration during the insertion and removal process, protecting the rear circuit board from stress damage.

[0191] To facilitate limiting the insertion stroke, the connector 941 is also provided with a first limiting structure 9415, and the connector 942 is also provided with a second limiting structure 9425. When the connector 942 is inserted into the connector 941, the first limiting structure 9415 and the second limiting structure 9425 come into contact to limit the stroke of the connector 942.

[0192] In other words, a first limiting structure 9415 and a second limiting structure 9425 are respectively provided on the receiving plug 941 and the plug-in 942 to cooperate with each other. When the plug-in 942 is inserted to the designed depth, the two limiting structures abut against each other to prevent further displacement. This mechanical limiting structure provides a clear indication of the insertion position, preventing terminal overpressure deformation or housing damage caused by over-insertion.

[0193] Of course, based on the actual dimensions of the connector 941 and the plug 942, the dimensions of the first limiting structure 9415 and the second limiting structure 9425 can be precisely designed to ensure that the conductive protrusion 9422 and the conductive spring 9412 are in the optimal contact area, avoiding poor contact caused by insufficient insertion depth or plastic deformation of the spring caused by excessive insertion depth.

[0194] In some embodiments, the support 941 and the connector 942 may adopt a double-layer annular shell nesting structure to achieve the limiting and protection functions.

[0195] Specifically, the support member 941 includes a first annular shell 9413 and a base plate 9414 connected to the first annular shell 9413. A groove 9411 is provided in the first annular shell 9413, and the base plate 9414 has an edge protruding from the first annular shell 9413 to form a first limiting structure 9415. The connector 942 includes a second annular shell 9424 surrounding the protrusion 9421, and a second limiting structure 9425 is provided in the second annular shell 9424. When the connector 942 is inserted into the support member 941, the second annular shell 9424 is fitted into the first annular shell 9413 until the first limiting structure 9415 and the second limiting structure 9425 come into contact.

[0196] As can be seen, the first annular shell 9413 of the support member 941 carries the groove 9411 and the conductive spring piece 9412, and the outer edge of its base plate 9414 forms the first limiting structure 9415; the second annular shell 9424 of the connector 942 protects the protrusion 9421, and its end face or inner step forms the second limiting structure 9425. During insertion, the second annular shell 9424 slides in along the outer wall of the first annular shell 9413 until the two limiting structures abut.

[0197] The above-mentioned double-layer shell nesting forms a circumferentially enclosed insertion guide cavity, which significantly improves the physical protection of the internal conductive structure and prevents dust and foreign objects from entering. The annular contact surface allows the plug 942 to be inserted at any angle in the circumference, and combined with the aforementioned rotational insertion characteristics, it enables blind insertion operation. The shell end face limit provides a large area of ​​uniform load bearing, disperses the impact force, and protects the precision conductive components.

[0198] It should be noted that during the rotation of the control box assembly 92 around the rotation support point, both the upper and lower connectors 942 have good clearance at their extreme positions, preventing interference with the support connector 941. This facilitates the rotation of the control box assembly 92. Specifically, there is a certain gap between the protrusion 9421 of the connector 942 and the upper and lower end faces of the groove 9411 of the support connector 941, ensuring that when the control box assembly 92 is flipped, the male end will not interfere with the end face of the female end, thus preventing it from being removed. Simultaneously, the spring-loaded flexible contact method avoids the bending of conventional pins during the rotation of the control box assembly 92.

[0199] It can be seen that during the rotation of the control box assembly 92 around the rotation support point, the upper and lower plug-in parts 942 are well cleared at their extreme positions, and no interference is caused.

[0200] The working principle of the central control box module 3 provided in this embodiment is as follows:

[0201] First, hold the control box assembly 92 with one hand and insert its protruding bottom part (i.e., the rotating connection structure 921) into the rotating support point groove (i.e., the rotating support structure 911). At this time, the control box assembly 92 can be regarded as a simple hinge support. Apply a counterclockwise torque to the control box assembly 92 until the second rotating fixing member 922 hooks onto the first rotating fixing member 912 on the central control box module 3. At this time, the control box assembly 92 is initially locked. Then, fasten the remaining latches around the control box assembly 92 to complete the installation. Conversely, unlock the latches around the control box assembly 92 and the second rotating fixing member 922, apply a clockwise torque to the control box assembly 92. After the control box assembly 92 rotates around the rotating support point at a certain angle, it can be taken out to the right to complete the disassembly of the control box assembly 92.

[0202] In summary, this application, by designing a rotating mounting structure for the control box assembly 92, eliminates the traditional operation of using both hands to initially position the control box assembly 92, and solves the problem of secondary disassembly when maintaining the central control board 925, which requires first disassembling the control box assembly 92 and then the central control board 925. In addition, the rotating control box assembly 92 is more convenient to disassemble and the force applied is easier to control, improving the efficiency of disassembling and assembling the control box assembly 92 and the user experience. At the same time, it has a significant cost advantage and is more competitive in the LED market.

Claims

1. An LED display screen, characterized in that, include: The housing includes a first frame, a second frame, a first hinge structure, and a second hinge structure. The first hinge structure is rotatably connected between the first ends of the first frame and the second frame, and the second hinge structure is rotatably connected between the second ends of the first frame and the second frame. An LED display unit is connected to the first hinge structure and the second hinge structure; An arc adjustment mechanism is located between the first frame and the second frame, and is used to adjust and fix the curvature of the LED display unit.

2. The LED display screen as described in claim 1, characterized in that, The first hinge structure includes a first rotating hinge, the first rotating hinge includes a plurality of first hinge modules, a first rotating connector is rotatably connected between adjacent first hinge modules, and a first rotating seat is rotatably connected to both ends of the plurality of first hinge modules so that the plurality of first hinge modules are rotatably connected between the first ends of the first frame and the second frame. The second hinge structure includes a second rotating hinge, which includes a plurality of second hinge modules. A second rotating connector is rotatably connected between adjacent second hinge modules. A second rotating seat is rotatably connected to both ends of the plurality of second hinge modules, so that the plurality of second hinge modules are rotatably connected between the second ends of the first frame and the second frame.

3. The LED display screen as described in claim 2, characterized in that, It also includes a third hinge structure, which includes a third rotating hinge that is rotatably connected between the first frame and the second frame and is located between the first rotating hinge and the second rotating hinge. The third rotating hinge includes several third hinge modules, and a third rotating connector is rotatably connected between adjacent third hinge modules. The two ends of the several third hinge modules are rotatably connected to third rotating seats, so that the several third hinge modules are rotatably connected between the first frame and the second frame.

4. The LED display screen as described in claim 3, characterized in that, The LED display unit is provided with a magnetic suction component. The first hinge structure further includes a first magnetic suction connector, which is disposed on the first rotating hinge. The second hinge structure further includes a second magnetic suction connector, which is disposed on the second rotating hinge. The third hinge structure further includes a third magnetic suction connector, which is disposed on the third rotating hinge. The magnetic suction component is magnetically connected to the first magnetic suction connector, the second magnetic suction connector, and the third magnetic suction connector to fix the LED display unit to the housing.

5. The LED display screen as described in claim 3, characterized in that, It also includes a central control box module, which is located between the first frame and the second frame; The first rotating hinge is provided between the first ends of the central control box module and the first frame, and between the first ends of the central control box module and the second frame; The second rotating hinge is provided between the second ends of the central control box module and the first frame, and between the second ends of the central control box module and the second frame; The third rotating hinge is provided between the middle of the central control box module and the first frame, and between the middle of the central control box module and the second frame.

6. The LED display screen as described in claim 5, characterized in that, The central control box module includes: The middle frame assembly includes a rotary support structure and a first rotary fixing member; The control box assembly includes a rotating connection structure and a second rotating fastener. The rotating connection structure is connected to the rotating support structure to allow the control box assembly to rotate relative to the middle frame assembly. After the second rotating fastener and the first rotating fastener are aligned, the control box assembly is fixed to the middle frame assembly. The connector includes a support plug connected to the middle frame assembly and a plug connected to the central control board of the control box assembly. The plug is used to rotate with the control box assembly and be inserted into the support plug to achieve an electrical connection with the support plug.

7. The LED display screen as described in claim 1, characterized in that, The arc adjustment mechanism includes a locking sleeve assembly and a locking rod assembly. When the locking sleeve assembly and the locking rod assembly are in the unlocked state, they adjust the arc of the LED display unit and when they are in the interlocked state, they fix the arc of the LED display unit. The locking assembly includes: Lock housing; An angle limiting member is movably connected to the lock housing for moving in a first direction. The angle limiting member is configured to interlock the lock rod assembly and the lock housing assembly when connected to the lock rod assembly, and to unlock the lock rod assembly and the lock housing assembly when disengaged from the lock rod assembly. An unlocking component, movably connected to the lock housing, is used to move in a second direction to trigger the angle limiting member to disengage from or connect to the lock rod assembly.

8. The LED display screen as described in claim 7, characterized in that, The unlocking component includes an unlocking button and a first limiting pin. The unlocking button is provided with a first limiting oblique hole. The first limiting pin passes through the first limiting oblique hole and the angle limiting member, and the first limiting pin and the first limiting oblique hole are movably engaged, so that when the unlocking button is pressed, the angle limiting member is triggered to disengage from the locking rod component. The number of the locking rod assembly and the angle limiting member is two, and the two angle limiting members are respectively movably connected to both ends of the lock sleeve housing, for locking and unlocking the two locking rod assemblies respectively; The lock assembly further includes an unlocking link, the first end of which is hinged to the angle limiting member at the first end of the lock housing. The unlocking assembly also includes a second limiting pin, and the unlocking button is provided with a second limiting oblique hole. The second limiting pin passes through the second limiting oblique hole and the second end of the unlocking link, and the second limiting pin and the second limiting oblique hole are in movable cooperation, so that when the unlocking button is pressed, the unlocking link is triggered to drive the angle limiting member at the first end of the lock housing to disengage from the corresponding lock rod assembly.

9. The LED display screen according to any one of claims 1 to 8, characterized in that, The LED display unit includes an LED display module and a base shell for mounting the LED display module. The base shell is an integral structure and includes a plurality of shells arranged along a third direction. Adjacent shells are connected by an elastic connection structure, which is configured to allow relative angular displacement between adjacent shells to accommodate the arc bending of the LED display module.

10. The LED display screen as described in claim 9, characterized in that, The bottom shell also includes an anti-detachment structure, which is disposed on adjacent shells. The anti-detachment structure includes a limiting boss on one shell and a limiting groove on the other shell. The limiting boss extends into the limiting groove, and the inner wall of the limiting groove is used to stop the limiting boss to limit the relative angular displacement range between adjacent shells.

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