A spherical LED display screen

Abstract

The utility model relates to LED display technical field, and disclose a kind of spherical LED display, including frame assembly, and frame assembly outside is provided with display component, and frame assembly includes central frame and spherical frame, and central frame includes center column, installation base plate, middle layer sheet metal skeleton, inner layer integrated air duct heat dissipation system and side beam;Installation base plate is fixed at the bottom of center column.The utility model is through the double-layer support structure of "central frame + spherical frame" and the middle layer sheet metal skeleton of 56 equal division, not only realizes the lightweight and high-strength demand of screen body, but also is convenient to split transportation and on-site assembly;With the magnetic magnetic quick disassembly of arc display module and the flexible PCB substrate, not only eliminates the joint problem of small-pitch module, but also greatly improves the installation and maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of LED display technology, specifically a spherical LED display screen. Background Technology

[0002] As LED display technology evolves towards higher definition and more irregular shapes, spherical LED displays, with their 360° immersive visual effects, are increasingly in demand across various indoor scenarios. However, existing spherical LED displays, limited by structural design and technical solutions, still suffer from numerous technical challenges, making it difficult to meet actual usage needs. The following problems exist with existing spherical LED displays: 1. When small-pitch modules (such as P1.25) are applied to a spherical surface, the large curvature and small module size make seam control difficult, easily disrupting the visual continuity of the spherical surface; 2. The enclosed and limited internal space of the sphere allows power and signal wiring to accumulate, hindering heat dissipation paths, creating a heat dissipation bottleneck for small-pitch, high-density LEDs, and increasing the difficulty of later maintenance; 3. Traditional spherical screens have fixed installation structures, lacking flexible movement and multi-scenario adaptability, making it difficult to adjust the position or installation method according to usage requirements; 4. The mid-layer support frame is mostly an integral design, making transportation and on-site assembly inconvenient, and prone to deformation due to thermal expansion and contraction during temperature changes, damaging the display module. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a spherical LED display screen, which features a double-layer frame assembly consisting of a central frame and a spherical frame, a magnetically detachable arc-shaped display module, an integrated internal air duct heat dissipation system, and a dual-mode mounting chassis. This solves the problems mentioned in the background technology, such as "obvious seams, poor heat dissipation, difficult installation and maintenance, low scene adaptability, and easy deformation of the frame."

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a spherical LED display screen, including a frame assembly, with a display assembly disposed on the outer side of the frame assembly, the frame assembly including a central frame and a spherical frame; the frame assembly, as the core support structure of the screen, takes into account both structural strength and lightweight requirements through a double-layer design, providing a stable installation foundation for the display assembly, while reserving space for heat dissipation and wiring.

[0007] The central frame includes a central column, a mounting base, a middle-layer sheet metal frame, an inner-layer integrated airflow cooling system, and side beams. The mounting base is fixed to the bottom of the central column, which provides a vertical support reference for the central frame. The mounting base connects the screen to the mounting surface, adapting to different installation needs. The middle-layer sheet metal frame is fixed to the upper and lower sides of the central column. The side beams are radially distributed along the central column and fixedly connected to the upper and lower middle-layer sheet metal frames. The side beams can evenly transfer the force of the middle-layer sheet metal frame to the central column, avoiding excessive local stress that could lead to deformation. The inner-layer integrated airflow cooling system is fitted to the inner side of the middle-layer sheet metal frame and can directly act on the middle-layer sheet metal frame and the outer display components, specifically addressing the heat dissipation problem.

[0008] The spherical frame includes a spherical frame body, a central vent, and lifting lugs. The spherical frame body is fitted onto the outside of the two middle-layer sheet metal skeletons and is fixedly connected to them. The spherical frame body can further enhance the structural stability of the middle-layer sheet metal skeletons and also protect the edges of the display components. The central vent is located at the center of both the upper and lower ends of the spherical frame body and is compatible with the inner integrated air duct heat dissipation system, providing an air intake channel for the inner integrated air duct heat dissipation system and ensuring smooth heat dissipation. The lifting lugs are fixed to the top of the spherical frame body for suspending and installing the screen, expanding the installation scenarios.

[0009] The display component includes an arc-shaped display module and a ventilation port adapter hole. The arc-shaped display module is an LED display module with a pixel pitch of 1.25 pixels. The small pixel pitch of 1.25 ensures high-definition image quality and no graininess when viewed at close range. The arc-shaped display module is adapted to the spherical curvature of the middle sheet metal frame and magnetically covers the outside of the middle sheet metal frame. The magnetic attraction method eliminates the need for complex connectors, making it easy to install and disassemble quickly. The ventilation port adapter hole is opened at the position of the center ventilation port of the arc-shaped display module, and the ventilation port adapter hole is connected to the center ventilation port to prevent the display module from blocking the ventilation port and ensure the integrity of the heat dissipation airflow.

[0010] As a further improvement of this utility model: the overall diameter of the spherical LED display screen is 2 meters, which is suitable for installation in small and medium-sized indoor scenes; the middle sheet metal frame and the arc-shaped display module are both designed with 56 equal parts to form a complete spherical structure. The 56 equal parts design can ensure that the curvature of each area of ​​the spherical surface is accurately matched, eliminate splicing gaps, and improve visual continuity.

[0011] As a further improvement of this utility model: the bottom of the mounting chassis is equipped with self-locking casters, which are used to realize the movement and positioning of the spherical LED display screen; the self-locking casters have flexible movement and stable locking functions, and are suitable for scenarios that require frequent adjustment of the screen position, such as temporary exhibitions and event sites, and can complete the position transfer without disassembly, thus improving the convenience of use.

[0012] As a further improvement of this utility model: mounting brackets are fixedly installed at both ends of the bottom of the mounting chassis, and threaded holes are provided on the mounting brackets. The mounting chassis is fixed to the ground or mounting platform through the threaded holes and fasteners. The fixing method of the mounting brackets and fasteners has high connection strength and is suitable for long-term fixed installation scenarios, such as fixed display cases in shopping malls and permanent installations in experience halls, ensuring that the screen does not shift during long-term use.

[0013] As a further improvement of this utility model: the middle sheet metal frame is divided into eight arc-shaped boxes according to latitude and longitude lines. The eight arc-shaped boxes are fastened together by M6*16 hexagonal screws, M6 nuts and matching hexagonal wrenches. The partitioned design facilitates the disassembly and transportation of the screen, reduces transportation costs and handling difficulty, and can be assembled on-site with standard screws, improving assembly efficiency. In addition, thermal expansion gaps are reserved at the partition splicing positions of the middle sheet metal frame to avoid deformation of the frame or damage to the arc-shaped display module caused by temperature changes, ensuring the long-term stability of the screen.

[0014] As a further improvement of this utility model: the inner layer integrated air duct heat dissipation system adopts a vertical air path design. The air inlet of the vertical air path is connected to the central ventilation port and the ventilation port adapter hole, and the air outlet covers the power supply, control box and other heat-generating components on the back of the middle sheet metal frame. The vertical air path can form a directional heat dissipation path of "air intake from the top and bottom → flow through the heat-generating components → heat dissipation", which improves the heat dissipation efficiency by more than 40% compared with traditional natural heat dissipation. The vertical air path can directly dissipate the heat generated by the arc-shaped display module and the power supply and control box during operation, so as to solve the heat dissipation bottleneck of P1.25 small pitch high density LED in the closed sphere and avoid display failure or shortened life due to high temperature.

[0015] As a further improvement of this utility model: the curved display module is made of a flexible PCB substrate, which can better adapt to the curvature of a 2-meter diameter sphere, ensuring a tight fit between the module and the middle sheet metal frame, eliminating seams; and a magnetic quick-release structure is provided between the curved display module and the middle sheet metal frame; the magnetic quick-release structure can achieve radial fine adjustment of the curved display module to ensure a flat and seamless splicing of the curved display module, and supports quick disassembly and single-point maintenance of the curved display module, allowing replacement of faulty modules without professional tools, improving maintenance efficiency by more than 60%; the curved display module includes a 2M-TU1 module, a 2M-TU2 module, and a 2M-T The system comprises U3, 2M-TU4, 2M-TD1, 2M-TD2, 2M-TD3, and 2M-TD4 modules, each with 56 curved display modules per ring. These modules are symmetrically distributed along the equator of the middle sheet metal frame to accommodate the curvature of different areas of the sphere. This symmetrical design simplifies the installation and positioning process while ensuring consistent brightness and color across all areas of the sphere. The lifting lugs are M24 size rings, with a load-bearing capacity adapted to the overall weight of the 2-meter diameter spherical LED display screen. They are used for suspending and fixing the spherical LED display screen to meet the high-altitude installation requirements of indoor exhibition and display scenarios, avoiding the occupation of ground space.

[0016] As a further improvement of this utility model: the back of the middle sheet metal frame is pre-set with mounting positions for power supply, control box and receiver card, and the power supply, control box and receiver card are evenly distributed on the mounting positions; the pre-set mounting positions can standardize the component layout and avoid messy internal wiring; all the control boxes are connected in series by network cables, and the power supply and receiver card are connected to the corresponding arc-shaped display modules one by one by short ribbon cables, so as to avoid the accumulation of internal wiring of the screen, shorten the signal transmission distance, reduce signal attenuation, ensure smooth dynamic display and improve visual smoothness.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, the double-layer support structure of "central frame + spherical frame" and the middle sheet metal skeleton divided into 56 equal parts not only achieve the requirements of lightweight and high strength of the screen body, but also facilitate disassembly, transportation and on-site assembly; combined with the magnetic quick-release of the arc-shaped display module and the flexible PCB substrate, it not only eliminates the splicing problem of small-pitch modules, but also greatly improves the efficiency of installation and maintenance.

[0019] 2. In this utility model, the vertical airflow design of the inner integrated air duct heat dissipation system, combined with the central ventilation port and ventilation port adapter hole, accurately covers the core heat-generating components, significantly improving heat dissipation efficiency and controlling the screen's operating temperature below 45℃. At the same time, the combination of the dual-mode installation chassis and M24 lifting lugs allows the screen to be adapted to various installation scenarios such as ground movement, ground fixing, and high-altitude hoisting, greatly enhancing scenario adaptability. Attached Figure Description

[0020] Figure 1 This is a perspective view of the entire utility model;

[0021] Figure 2 This is a perspective view showing the display component and frame component separated according to this utility model;

[0022] Figure 3 This is a perspective view of the central frame of this utility model;

[0023] Figure 4 This is a perspective view of the spherical frame of this utility model;

[0024] Figure 5 This is an unfolded view of the display component of this utility model.

[0025] In the diagram: 1. Frame assembly; 2. Display assembly; 11. Central frame; 111. Central column; 112. Mounting chassis; 113. Middle layer sheet metal frame; 114. Inner layer integrated air duct heat dissipation system; 115. Side beam; 12. Spherical frame; 121. Spherical frame body; 122. Central vent; 123. Lifting lug; 21. Arc-shaped display module; 22. Ventilation adapter hole. Detailed Implementation

[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0027] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] It should be noted that the basic control principles of the control box, receiver card, and spherical correction system are existing technologies and common knowledge to those skilled in the art, and will not be elaborated upon here.

[0030] Please see Figures 1-5 In this embodiment of the utility model, a spherical LED display screen includes a frame assembly 1, and a display assembly 2 is disposed on the outside of the frame assembly 1. The frame assembly 1 includes a central frame 11 and a spherical frame 12. The frame assembly 1 serves as the core support structure of the screen. Through a double-layer design, it takes into account both structural strength and lightweight requirements, provides a stable installation foundation for the display assembly 2, and reserves space for heat dissipation and wiring.

[0031] The central frame 11 includes a central column 111, a mounting base 112, a middle-layer sheet metal frame 113, an inner-layer integrated air duct heat dissipation system 114, and side beams 115. The mounting base 112 is fixed to the bottom of the central column 111, which provides a vertical support reference for the central frame 11. The mounting base 112 connects the screen to the mounting surface, adapting to different installation needs. The middle-layer sheet metal frame 113 is fixed to the upper and lower sides of the side beam central column 111. The side beams 115 are radially distributed along the central column 111 and fixedly connected to the upper and lower middle-layer sheet metal frames 113. The side beams 115 can evenly transfer the force of the middle-layer sheet metal frame 113 to the central column 111, avoiding excessive local stress that could lead to deformation. The inner-layer integrated air duct heat dissipation system 114 is set against the inner side of the middle-layer sheet metal frame 113 and can directly act on the middle-layer sheet metal frame 113 and the outer display components 2, specifically solving the heat dissipation problem.

[0032] The spherical frame 12 includes a spherical frame body 121, a central vent 122, and a lifting lug 123. The spherical frame body 121 is fitted onto the outside of the two middle sheet metal frames 113 and is fixedly connected to the middle sheet metal frames 113. The spherical frame body 121 can further enhance the structural stability of the middle sheet metal frames 113 and at the same time protect the edge of the display component 2. The central vent 122 is located at the center of the upper and lower ends of the spherical frame body 121 and is adapted to the inner integrated air duct heat dissipation system 114, providing an air intake channel for the inner integrated air duct heat dissipation system 114 and ensuring smooth heat dissipation. The lifting lug 123 is fixed to the top of the spherical frame body 121 for the hoisting and installation of the screen, expanding the installation scenarios.

[0033] Display component 2 includes an arc-shaped display module 21 and a ventilation adapter hole 22. The arc-shaped display module 21 is an LED display module with a pixel pitch of 1.25. The small pixel pitch of 1.25 ensures high-definition image quality without graininess when viewed at close range. The arc-shaped display module 21 is adapted to the spherical curvature of the middle sheet metal frame 113 and magnetically covers the outside of the middle sheet metal frame 113. The magnetic attraction method does not require complex connectors, which facilitates quick installation and disassembly. The ventilation adapter hole 22 is opened at the position of the arc-shaped display module 21 corresponding to the central ventilation port 122, and the ventilation adapter hole 22 is connected to the central ventilation port 122 to avoid the display module blocking the ventilation port and ensure the integrity of the heat dissipation airflow.

[0034] The overall diameter of the spherical LED display screen is 2 meters, which is suitable for installation in small and medium-sized indoor scenes. The middle sheet metal frame 113 and the arc-shaped display module 21 are both designed with 56 equal parts to form a complete spherical structure. The 56 equal parts design can ensure that the curvature of each area of ​​the spherical surface is accurately matched, eliminate splicing gaps, and improve visual continuity.

[0035] The mounting chassis 112 is equipped with self-locking casters at the bottom. The self-locking casters are used to move and fix the spherical LED display screen. The self-locking casters have flexible movement and stable locking functions, which are suitable for scenarios that require frequent adjustment of the screen position, such as temporary exhibitions and event sites. The position can be transferred without disassembly, improving the convenience of use.

[0036] Mounting base 112 has mounting brackets fixed at both ends of its bottom. The mounting brackets have threaded holes, and the mounting base 112 is fixed to the ground or mounting platform by fasteners through the threaded holes. The fixing method of mounting brackets and fasteners has high connection strength and is suitable for long-term fixed installation scenarios, such as fixed display cases in shopping malls and permanent installations in experience halls, ensuring that the screen does not shift during long-term use.

[0037] The middle-layer sheet metal frame 113 is divided into eight arc-shaped boxes according to latitude and longitude lines. The eight arc-shaped boxes are fastened together by M6*16 hex screws, M6 nuts and matching hex wrenches. The partition design facilitates the disassembly and transportation of the screen, reducing transportation costs and handling difficulties. On-site assembly can be completed with standard screws, improving assembly efficiency. In addition, thermal expansion gaps are reserved at the partition splicing positions of the middle-layer sheet metal frame 113 to avoid deformation of the frame or damage to the arc-shaped display module 21 caused by temperature changes, ensuring the long-term stability of the screen.

[0038] The inner integrated air duct heat dissipation system 114 adopts a vertical air path design. The air inlet of the vertical air path is connected to the central vent 122 and the vent adapter hole 22, and the air outlet covers the power supply, control box and other heat-generating components on the back of the middle sheet metal frame 113. The vertical air path can form a directional heat dissipation path of "air intake from the top and bottom → flow through the heat-generating components → heat dissipation", which improves the heat dissipation efficiency by more than 40% compared with traditional natural heat dissipation. The vertical air path can directly dissipate the heat generated by the curved display module 21 and the power supply and control box during operation, so as to solve the heat dissipation bottleneck of P1.25 small pitch high density LED in the closed sphere and avoid display failure or shortened life due to high temperature.

[0039] The curved display module 21 is made of a flexible PCB substrate, which can better adapt to the curvature of a 2-meter diameter sphere, ensuring a tight fit between the module and the middle sheet metal frame 113 and eliminating seams. A magnetic quick-release structure is provided between the curved display module 21 and the middle sheet metal frame 113. This structure allows for radial fine-tuning of the curved display module 21, ensuring a smooth and seamless splicing, and supports quick disassembly and single-point maintenance. Faulty modules can be replaced without specialized tools, improving maintenance efficiency by over 60%. The curved display module 21 includes a 2M-TU1 module, a 2M-TU2 module, a 2M-TU3 module, and a 2M-TU4 module. The system includes M-TU4, 2M-TD1, 2M-TD2, 2M-TD3, and 2M-TD4 modules. Each model has 56 curved display modules per ring, symmetrically distributed along the equator of the middle sheet metal frame 113 to accommodate the curvature of different areas of the sphere. This symmetrical design simplifies the installation and positioning process while ensuring consistent brightness and color across all areas of the sphere. The lifting lugs 123 are M24 size rings, with a load-bearing capacity matched to the overall weight of the 2-meter diameter spherical LED display screen. They are used for suspending and fixing the spherical LED display screen to meet the high-altitude installation requirements of indoor exhibition and display scenarios, avoiding the occupation of ground space.

[0040] The back of the middle sheet metal frame 113 has pre-set mounting positions for power supply, control box and receiver card. The power supply, control box and receiver card are evenly distributed on the mounting positions. The pre-set mounting positions can standardize the component layout and avoid messy internal wiring. All control boxes are connected in series by network cables. The power supply and receiver card are connected to the corresponding curved display module 21 one by one by short ribbon cables to avoid the accumulation of internal wiring of the screen, while shortening the signal transmission distance, reducing signal attenuation, ensuring smooth dynamic display and improving visual smoothness.

[0041] The working principle of this utility model is as follows: The side beam 115 is radially fixed to the outside of the central column 111; then, two middle-layer sheet metal frames 113 are fixed to the upper and lower sides of the side beam 115 respectively; the inner integrated air duct heat dissipation system 114 is fitted and fixed to the inside of the middle-layer sheet metal frame 113; a mounting base 112 with self-locking casters is installed at the bottom of the central column 111 to complete the assembly of the central frame 11; the spherical frame 121 is then fitted onto the outside of the middle-layer sheet metal frame 113, ensuring the spherical frame 121... The central ventilation opening 122 is aligned with the inner integrated air duct heat dissipation system 114, and then the spherical frame 121 is fixed to the middle sheet metal frame 113 with bolts; M24 specification lifting lugs 123 are installed on the top of the spherical frame 121, and the power supply, control box and receiver card are evenly fixed in the preset mounting positions on the back of the middle sheet metal frame 113; all control boxes are connected in series with network cables, and the power supply, receiver card and corresponding arc-shaped display module 21 are connected with short ribbon cables to ensure neat wiring without accumulation, according to the spherical frame 121. For different areas of curvature, select corresponding curved display modules 212M-TU1~2M-TU4 and 2M-TD1~2M-TD4. Use a magnetic attraction structure to cover the outer side of the middle sheet metal frame 113. Fine-tune the radial angle of the modules to ensure a smooth and seamless splicing. Ensure the ventilation adapter hole 22 of the curved display module 21 is connected to the central ventilation port 122. Connect the main power supply and video source, and start the spherical correction system to perform geometric correction and color compensation on the displayed image. Testing complete. Afterwards, unlock the self-locking casters, move the screen to the target position, and lock the casters to play and display the materials normally. If you need to change the position, unlock the casters again to move it. For long-term fixed installation scenarios, the mounting base 112 can be replaced with a model with a mounting bracket. Fix the mounting bracket to the ground or mounting platform with bolts. The remaining installation steps are the same. For high-altitude hoisting scenarios, the screen can be hoisted to the preset hoisting point through the lifting lugs 123. With the auxiliary fixation of the mounting base 112, the stability of the screen can be ensured.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spherical LED display screen, comprising a frame assembly (1), wherein a display assembly (2) is disposed on the outer side of the frame assembly (1), the frame assembly (1) comprising a central frame (11) and a spherical frame (12), characterized in that: The central frame (11) includes a central column (111), a mounting base (112), a middle sheet metal frame (113), an inner integrated air duct heat dissipation system (114), and side beams (115). The mounting base (112) is fixed to the bottom of the central column (111), the middle sheet metal frame (113) is fixed to the upper and lower sides of the side beam central column (111), the side beams (115) are radially distributed along the central column (111) and fixedly connected to the upper and lower middle sheet metal frames (113), and the inner integrated air duct heat dissipation system (114) is fitted to the inner side of the middle sheet metal frame (113). The spherical frame (12) includes a spherical frame body (121), a central vent (122), and a lug (123). The spherical frame body (121) is fitted onto the outside of two middle sheet metal frames (113) and is fixedly connected to the middle sheet metal frames (113). The central vent (122) is located at the center of the upper and lower ends of the spherical frame body (121) and is adapted to the inner integrated air duct heat dissipation system (114). The lug (123) is fixed to the top of the spherical frame body (121). The display component (2) includes an arc-shaped display module (21) and a ventilation adapter hole (22); the arc-shaped display module (21) is an LED display module with a pixel pitch of P1.25, and the arc-shaped display module (21) is adapted to the spherical curvature of the middle sheet metal frame (113) and magnetically covers the outside of the middle sheet metal frame (113). The ventilation adapter hole (22) is opened at the position of the arc-shaped display module (21) corresponding to the central ventilation opening (122), and the ventilation adapter hole (22) is connected to the central ventilation opening (122).

2. A spherical LED display screen according to claim 1, characterized in that: The mounting chassis (112) is equipped with self-locking casters at the bottom.

3. A spherical LED display screen according to claim 1, characterized in that: The mounting base (112) has mounting supports fixedly installed at both ends of its bottom, and the mounting supports have threaded holes.

4. A spherical LED display screen according to claim 1, characterized in that, The middle sheet metal frame (113) is divided into eight arc-shaped boxes according to the latitude and longitude lines. The eight arc-shaped boxes are fastened together by M6*16 internal hex screws, M6 nuts and matching internal and external hex wrenches; and thermal expansion gaps are reserved at the partition splicing positions of the middle sheet metal frame (113).

5. A spherical LED display screen according to claim 1, characterized in that, The inner integrated air duct heat dissipation system (114) adopts a vertical air duct design, and the air inlet of the vertical air duct is connected to the central vent (122) and the vent adapter hole (22).

6. A spherical LED display screen according to claim 1, characterized in that, The arc-shaped display module (21) is made of a flexible PCB substrate, and a magnetic quick-release structure is provided between the arc-shaped display module (21) and the middle sheet metal frame (113); the magnetic quick-release structure can realize radial fine adjustment of the arc-shaped display module (21).

7. A spherical LED display screen according to claim 1, characterized in that, The back of the middle sheet metal frame (113) is pre-set with mounting positions for power supply, control box and receiver card. The power supply, control box and receiver card are evenly distributed on the mounting positions. All the control boxes are connected in series by network cable. The power supply and receiver card are connected to the corresponding arc-shaped display module (21) one by one by short ribbon cable.

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