LED display box and LED display device

Abstract

This application relates to the field of LED equipment technology, and provides an LED display cabinet and an LED display device. The LED display cabinet has a front end and a rear end. The front end of the LED display cabinet is used to install an LED display screen, and the rear end of the LED display cabinet is disposed opposite to the front end. The LED display cabinet includes: a cabinet body, on which a connecting hole is provided, the connecting hole including a threaded through-hole section extending from the front end to the rear end of the LED display cabinet; and a screen connector, which includes an adjustment structure, a threaded connecting section, and a connecting structure. The threaded connecting section is screwed into the threaded through-hole section, the connecting structure is located at the end of the threaded connecting section near the front end of the LED display cabinet, and the adjustment structure is located at the end of the threaded connecting section near the rear end of the LED display cabinet. During adjustment, the LED display screen already installed at the front end can be adjusted by the threaded engagement between the threaded connecting section and the threaded through-hole section on the cabinet body without disassembling the front end.

Description

Technical Field

[0001] This application belongs to the field of LED equipment technology, and more specifically, relates to an LED display cabinet and an LED display device. Background Technology

[0002] With the continuous development of LED display technology, users have increasingly stringent requirements for display effects, among which the flatness of the display surface is a key indicator affecting the visual experience. In practical applications, the step difference issues generated during module installation within the cabinet and splicing between cabinets directly affect display consistency. Therefore, the convenience and accuracy of step difference adjustment within and between cabinets are receiving increasing attention from the industry.

[0003] Currently, the mainstream solution for LED display screen step difference issues in the market is as follows: When step difference occurs in the screen, the LED display screen must be disassembled first. A flatness adjustment tool is used to adjust the height of the magnetic sleeve that is threaded and locked on the front of the LED display cabinet. By changing the support height of the magnetic sleeve, the flatness of the module display surface can be adjusted. After the adjustment is completed, the module must be reassembled, and the step difference must be evaluated to see if it has been eliminated. If the step difference still exists, the above disassembly and adjustment process must be repeated until the step difference disappears.

[0004] However, each adjustment requires disassembling and reassembling the module to verify the adjustment effect, which makes the adjustment process cumbersome. Repeated disassembly and reassembly not only prolongs the screen installation time, but also reduces the overall construction efficiency and the adjustment accuracy is low. Utility Model Content

[0005] The purpose of this application is to provide an LED display cabinet and an LED display device to solve the problems of complex and inefficient operation of adjusting screen step differences in the prior art.

[0006] To achieve the above objectives, according to one aspect of this application, an LED display cabinet is provided. The LED display cabinet has a front end and a rear end. The front end of the LED display cabinet is used to mount an LED display screen, and the rear end of the LED display cabinet is disposed opposite to the front end. The LED display cabinet includes: a cabinet body, on which a connecting hole is provided, the connecting hole including a threaded through-hole section extending from the front end to the rear end of the LED display cabinet; and a screen connector, the screen connector including an adjustment structure, a threaded connecting section, and a connecting structure. The threaded connecting section is screwed into the threaded through-hole section, the connecting structure is located at the end of the threaded connecting section near the front end of the LED display cabinet, and the adjustment structure is located at the end of the threaded connecting section near the rear end of the LED display cabinet.

[0007] Optionally, the connection hole also includes an adjustment hole section, which is located at the rear end of the LED display cabinet and forms an adjustment opening at the rear end of the LED display cabinet. The adjustment hole section is connected to the threaded through hole section, and the adjustment structure is located in the adjustment hole section.

[0008] Optionally, the connection hole also includes a mounting hole section, which is located at the front end of the LED display cabinet and forms a mounting opening at the front end of the LED display cabinet. The mounting hole section communicates with the threaded through hole section, and the connection structure is located in the mounting hole section.

[0009] Optionally, the adjustment structure includes a drive groove for engaging with the screw end of an external tool.

[0010] Optionally, the LED display screen is provided with a first magnetic attraction part, and the connection structure includes a second magnetic attraction part, which is used to magnetically attract the first magnetic attraction part.

[0011] Optionally, the LED display cabinet also includes an elastic anti-loosening part, the two ends of which abut against the bottom of the connecting structure and the mounting hole section, respectively.

[0012] Optionally, the elastic anti-loosening part includes a spring, with both ends of the spring abutting against the bottom ends of the connecting structure and the mounting hole section, respectively.

[0013] Optionally, there are multiple connection holes and multiple screen connectors, with each connection hole corresponding to one of the multiple screen connectors.

[0014] Optionally, multiple connection holes are spaced apart circumferentially along the body of the box.

[0015] According to another aspect of this application, an LED display device is provided, which includes an LED display cabinet and an LED display screen mounted on the LED display cabinet, wherein the LED display cabinet is the aforementioned LED display cabinet.

[0016] The beneficial effects of the LED display cabinet provided in this application are as follows: Compared with the prior art, this application realizes a non-disassembly operation for step adjustment. Because the adjustment structure of the screen connector is located at the end of the threaded connection section near the rear end of the LED display cabinet, while the connection structure is located at the end near the front end of the cabinet for connecting the LED display screen, the front and rear ends are separated. This allows operators to directly tighten the threaded connection section at the rear end of the cabinet through the adjustment structure. During adjustment, there is no need to disassemble the LED display screen already installed at the front end. The support height of the connection structure can be changed by the threaded engagement between the threaded connection section and the threaded through-hole section on the cabinet body, thereby adjusting the flatness of the display surface in real time. This completely solves the drawback of repeatedly disassembling and assembling the screen during adjustment in traditional solutions, achieving step leveling between adjacent screens. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural diagram illustrating the existing technology for leveling an LED display cabinet.

[0019] Figure 2 A schematic diagram of the LED display cabinet during LED display screen leveling in an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the structure of the LED display cabinet according to an embodiment of this application;

[0021] Figure 4 This is a schematic diagram of the structure of the screen connector according to an embodiment of this application.

[0022] The details of the reference numerals used in the above figures are as follows:

[0023] 1. Display screen; 2. Adjustment tool; 3. LED display cabinet; 4. Magnetic sleeve;

[0024] 10. Box body; 111. Threaded through hole section; 112. Adjustment hole section; 113. Adjustment opening; 20. Screen connector; 21. Adjustment structure; 211. Drive slot; 22. Threaded connection section; 23. Connection structure; 30. LED display screen. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0026] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly or indirectly on that other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to that other element. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0029] As documented in the background section, the mainstream solution to the step difference problem in LED displays is (see...). Figure 1 (As shown): When a step difference occurs in the screen, the LED display screen 1 needs to be disassembled first. The flatness adjustment tool 2 is used to adjust the height of the magnetic sleeve 4 that is threaded and locked on the box at the front end of the LED display box 3. The flatness adjustment of the module display surface is achieved by changing the support height of the magnetic sleeve 4. After the adjustment is completed, the module needs to be reinstalled and the step difference is evaluated. If the step difference still exists, the above disassembly and adjustment process needs to be repeated until the step difference disappears.

[0030] However, each adjustment requires disassembling and reassembling the module to verify the adjustment effect, which makes the adjustment process cumbersome. Repeated disassembly and reassembly not only prolongs the screen installation time, but also reduces the overall construction efficiency and the adjustment accuracy is low.

[0031] To solve the above problem, see Figures 2 to 4As shown in the embodiment of this application, the LED display cabinet has a front end and a rear end. The front end of the LED display cabinet is used to mount the LED display screen 30. The rear end of the LED display cabinet is positioned opposite to the front end. Specifically, the front end refers to the side surface of the LED display cabinet used to mount the LED display screen, which is the side of the display screen facing the audience and displaying images, providing a direct mounting reference surface for the display screen. The other side surface of the rear end, which is opposite to the front end of the LED display cabinet, is usually the back of the cabinet. It does not directly participate in image display and is mainly used to set up structural support components and for operators to perform adjustment operations. The LED display cabinet includes a cabinet body 10 and a screen connector 20. The cabinet body 10 is provided with a connection hole, which includes a threaded through hole section 111 that extends from the front end of the LED display cabinet to the rear end of the LED display cabinet. The screen connector 20 includes an adjustment structure 21, a threaded connection section 22, and a connection structure 23. The threaded connection section 22 is screwed into the threaded through hole section 111. The connection structure 23 is located at the end of the threaded connection section 22 near the front end of the LED display cabinet. The adjustment structure 21 is located at the end of the threaded connection section 22 near the rear end of the LED display cabinet.

[0032] It should be noted that the cabinet body 10 is the main frame structure of the LED display cabinet and the core supporting part of the entire cabinet. Other components, such as connecting holes, are all located on the cabinet body 10. The connecting holes are holes formed in the cabinet body 10 and are the key structures for connecting the screen connector 20 to the cabinet body 10. They provide an installation position for the screen connector 20, allowing it to be stably assembled onto the cabinet body 10. The threaded through-hole section 111 is a section of the connecting hole with internal threads, extending from the front end to the rear end of the LED display cabinet. This structure forms a threaded engagement with the threaded connection section 22 of the screen connector 20, enabling a detachable connection and relative position adjustment between the two.

[0033] It should be noted that the screen connector 20 is a component used to connect the LED display screen and the cabinet body 10. It is a key component for the installation and position adjustment of the LED display screen on the cabinet body 10, integrating the dual functions of connection and adjustment. The adjustment structure 21 is a part of the screen connector 20 used for adjustment operations, located at the end of the threaded connection section 22 near the rear end of the LED display cabinet. By applying force (such as rotation) to the adjustment structure 21, the operator can drive the threaded connection section 22 to rotate, thereby adjusting the overall position of the screen connector 20. The threaded connection section 22 is the part of the screen connector 20 with external threads, which can be screwed into the threaded through hole section 111 of the connection hole in the cabinet body 10. Through the meshing transmission between the threads, when the threaded connection section 22 rotates, the screen connector 20 can move relative to the cabinet body 10 in the front-back direction.

[0034] The connecting structure 23 is the part of the screen connector 20 used for direct connection with the LED display screen, located at the end of the threaded connecting section 22 near the front end of the LED display cabinet. This structure fixes the LED display screen to the screen connector 20 through appropriate connection methods (such as clips, screws, etc.), allowing the LED display screen to adjust its position as the position of the screen connector 20 changes.

[0035] This application achieves step adjustment without disassembly. Since the adjustment structure 21 of the screen connector 20 is located at the end of the threaded connection section 22 near the rear end of the LED display cabinet, while the connection structure 23 is located at the end near the front end of the cabinet for connecting the LED display screen, the front and rear ends are separated. This allows operators to directly tighten the threaded connection section 22 at the rear end of the cabinet via the adjustment structure 21. During adjustment, there is no need to disassemble the LED display screen already installed at the front. The support height of the connection structure 23 can be changed by the threaded engagement between the threaded connection section 22 and the threaded through-hole section 111 on the cabinet body 10, thereby adjusting the flatness of the display surface in real time. This completely solves the drawback of traditional solutions requiring repeated disassembly and reassembly of the screen during adjustment, achieving step leveling between adjacent screens.

[0036] This design enhances the precision control of the adjustable height. The threaded connection section 22 and the threaded through-hole section 111 have clearly defined pitch parameters. When the threaded connection section 22 is rotated by the rotating adjustment structure 21, the height change of the connection structure 23 can be precisely calculated by the number of rotations, achieving quantitative control of the adjustable height. Compared to the traditional method of fuzzy adjustment relying on the tightness of a magnetic sleeve screw, this effectively avoids the problems of over- or under-adjustment, significantly reduces the number of adjustments, and ensures that the ideal flatness requirement can be achieved with a single adjustment.

[0037] This significantly improves the efficiency of screen installation and maintenance. Since the adjustment process does not require disassembling the screen, it eliminates the cumbersome procedures of traditional solutions, such as disassembling modules, reassembling after adjustment, assessing step differences, and repeated operations. This not only reduces the risk of component damage from mechanical disassembly but also greatly shortens the debugging time for individual cabinets and the entire screen. Especially in the splicing and installation of large LED displays, it can significantly reduce construction intensity, improve overall project progress, and bring users higher time efficiency and economic value. In summary, this structure, by optimizing the adjustment operation path and transmission method, achieves convenient and efficient step difference adjustment while ensuring adjustment accuracy. It effectively solves the problems of cumbersome adjustment and low efficiency in existing technologies, demonstrating outstanding practicality and progress.

[0038] The connecting hole in this embodiment further includes an adjustment hole section 112, which is located at the rear end of the LED display cabinet and forms an adjustment opening 113 at the rear end of the LED display cabinet. The adjustment hole section 112 communicates with the threaded through hole section 111, and the adjustment structure 21 is located in the adjustment hole section 112. This provides a dedicated operating space and guide limit for adjustment operations. The adjustment hole section 112, located at the rear end of the LED display cabinet and forming the adjustment opening 113, allows the adjustment structure 21 to be precisely accommodated within the adjustment hole section 112, providing a clear operating area for the operator's adjustment actions. This avoids the potential for accidental contact or bumping of the adjustment structure 21 if it is exposed on the cabinet surface. Simultaneously, the adjustment opening 113 allows adjustment tools to directly and smoothly extend into the hole section to cooperate with the adjustment structure 21, reducing spatial obstruction during operation and making adjustments such as turning more effortless and efficient.

[0039] The adjustment hole section 112 houses the adjustment structure 21 within the hole of the housing body 10, rather than exposing it directly to the outside of the housing. This reduces the corrosion of the adjustment structure 21 and the threaded mating parts by external dust, moisture and other impurities, lowers the risk of component corrosion or jamming, and extends the service life of the adjustment structure 21.

[0040] In this embodiment, the connecting hole further includes a mounting hole section located at the front end of the LED display cabinet, forming a mounting opening at the front end. The mounting hole section communicates with the threaded through hole section 111, and the connecting structure 23 is located within the mounting hole section. This provides precise installation positioning and bearing space for the connecting structure 23. The mounting hole section, located at the front end of the LED display cabinet and forming a mounting opening, allows the connecting structure 23 to fit comfortably within the mounting hole section, providing a clear reference position for the docking of the connecting structure 23 and the LED display screen. This avoids the uneven force distribution problem that might result from the connecting structure 23 protruding from the front surface of the cabinet. Simultaneously, the inner wall of the mounting hole section can radially limit the connection of the connecting structure 23, reducing displacement deviations caused by vibration or external impact during use, and ensuring a more stable and reliable connection between the connecting structure 23 and the display screen.

[0041] The mounting hole section integrates the connecting structure 23 into the channel at the front end of the cabinet body 10, reducing direct contact between the connecting structure 23 and the external environment, lowering the risk of dust and moisture erosion to the connecting components, and slowing down the aging of the components. At the same time, the concealed connecting structure 23 design makes the front surface of the cabinet more concise and neat, avoiding interference from protruding components on the installation of the display module, and also improving the aesthetics of the screen edge.

[0042] The adjustment structure 21 in this embodiment includes a drive groove 211, which is used to engage with the screwing end of an external tool, providing a precise force transmission interface for adjustment operations. As a force-bearing component on the adjustment structure 21, the drive groove 211 can form a stable fit with external adjustment tools (such as screwdrivers, Allen wrenches, etc.). The groove avoids the slippage problem between the tool and the adjustment component in traditional adjustment methods, ensuring that the torque applied by the operator can be efficiently and losslessly transmitted to the threaded connection section 22. This makes the rotational adjustment of the threaded connection section 22 more effortless and controllable, reducing adjustment stagnation or deviation caused by force transmission failure.

[0043] Secondly, it improves the convenience and adaptability of adjustment operations. The drive groove 211 can be designed with different groove types (such as slotted, cross-shaped, and hexagonal slots) according to actual operational needs, and can be adapted to a variety of conventional adjustment tools without the need for additional customized special tools, thus lowering the operational threshold. At the same time, the groove structure facilitates the quick positioning and insertion of tools within the narrow adjustment hole section 112, especially in scenarios where the space at the rear of the housing is limited or multiple housings are densely arranged. Operators can achieve quick docking operations through the drive groove 211, shortening the preparation time for a single adjustment and improving the overall adjustment efficiency. It also enhances the controllability of adjustment precision. The precise engagement of the drive groove 211 and the tool allows for precise control of the rotation angle of the threaded connection section 22. Combined with the pitch parameter of the threaded connection section 22, the height change of the connection structure 23 can be accurately calculated by controlling the number of rotations or the angle of the tool. The quantitative adjustment method avoids the problem of excessive or insufficient rotation caused by manual adjustment when there is no groove structure, further ensuring the accuracy of step adjustment, reducing the number of repeated adjustments, and providing support for the flatness of the display surface from the operation level.

[0044] The LED display screen is equipped with a first magnetic attraction part, and the connecting structure includes a second magnetic attraction part, which is used to magnetically attract the first magnetic attraction part. The second magnetic attraction part forms a contact connection with the LED display module through magnetic force, eliminating the need for traditional mechanical operations such as screw tightening and snap-fit ​​engagement. Operators can use the magnetic attraction to guide the display module to quickly position and attach it to the connecting structure 23, saving the tedious steps of aligning and tightening screws; during disassembly, only appropriate external force needs to be applied to overcome the magnetic force for separation, significantly shortening the installation and disassembly time of a single display module. Especially in scenarios of large-scale screen splicing or module replacement, it can significantly reduce the time consumed in a single operation and improve the overall efficiency of screen installation and maintenance.

[0045] Compared to traditional mechanical connections such as screws and clips, the second magnetic suction unit achieves connection through magnetic force, eliminating friction or compression losses from direct contact. During repeated installation, disassembly, or adjustment, it avoids scratches, deformation, or thread stripping at the contact points between the connection structure 23 and the display module due to mechanical friction, reducing the risk of component wear, slowing down the aging of the connection structure 23 and the display module, and extending the overall lifespan of the equipment. The second magnetic suction unit eliminates the need for complex screw holes, clip slots, or other mechanical connection structures 23 on the connection structure 23 or the display module, simplifying the structural design of the connection points. For LED display modules trending towards thinner and lighter designs, it reduces the increase in module thickness or weight caused by mechanical connection structures 23, while avoiding the impact of openings on the internal circuitry or structural strength of the module, ensuring the integrity and lightweight characteristics of the module.

[0046] The LED display cabinet in this embodiment also includes an elastic anti-loosening part, with its two ends abutting against the bottom ends of the connecting structure 23 and the mounting hole section, respectively. The engagement between the threaded connection section 22 and the threaded through-hole section 111 has a natural micro-gap. During long-term use of the LED display or when subjected to external forces such as vibration or impact, the threads may loosen, causing the connecting structure 23 to shift position. The elastic anti-loosening part applies a continuous elastic preload to the connecting structure 23, ensuring that the threaded connection section 22 is always subjected to a forward thrust. This forces the threaded tooth surfaces to fit tightly, eliminating gaps and generating continuous friction, effectively preventing the threaded connection section 22 from rotating in the opposite direction due to vibration. This fundamentally solves the problem of easy loosening in traditional threaded connections, ensuring the long-term stability of the connecting structure 23 and the LED display position.

[0047] LED displays may be subjected to accidental impacts or vibrations during transportation, installation, or use (such as collisions among crowds at large events or bumps during equipment handling). The elastic anti-loosening part can absorb part of the impact force through its own deformation, preventing external force from being directly transmitted to the threaded connection section 22 or the display module. This reduces the risk of stripping or breaking of the thread teeth due to excessive instantaneous force, and also reduces damage to internal components of the display module caused by hard impacts, thus protecting the core components and extending the service life of the equipment.

[0048] After the display screen flatness is adjusted via the rear adjustment structure 21, the pre-tightening force of the elastic anti-loosening part can stabilize the connecting structure 23 in the adjusted position, preventing positional shift due to changes in ambient temperature (causing thermal expansion and contraction of components) or slight external disturbances. This avoids the need for secondary adjustments, maintains adjustment accuracy over a long period, reduces repetitive adjustments during later maintenance, and lowers operation and maintenance costs.

[0049] When the operator rotates the threaded connection section 22 through the adjustment structure 21, the applied adjustment torque can easily overcome the resistance of the elastic anti-loosening part, enabling smooth movement of the connection structure 23; after adjustment, the elasticity is immediately restored and a stable anti-loosening effect is formed. The characteristics of "flexible during adjustment and tight when stationary" do not interfere with normal adjustment operations and can play an anti-loosening role immediately after adjustment, which is highly consistent with the design goal of "precise adjustment + stable maintenance" of this application.

[0050] The elastic anti-loosening part in this embodiment includes a spring, with its two ends abutting against the bottom ends of the connecting structure and the mounting hole section, respectively. The spring, through its own elastic deformation, can quickly absorb external impact forces (such as transportation bumps, installation collisions, or vibrations during use), converting the instantaneous impact force into elastic potential energy and releasing it slowly. This significantly reduces the direct impact of external forces on the threaded connecting section 22, the connecting structure 23, and the LED display module. Compared to a rigid anti-loosening structure, the spring's buffering effect is more significant, effectively reducing wear on the threaded tooth surface, deformation of the connecting structure 23, and the risk of damage to internal components of the display, thus extending the service life of core components.

[0051] The elastic anti-loosening part can also be a disc spring, a rubber elastic component, an elastic washer, etc.

[0052] In this embodiment, there are multiple connection holes and screen connectors 20, with each connection hole corresponding to one of the multiple screen connectors 20. This achieves multi-point uniform support for the display screen, improving installation stability. The multiple screen connectors 20 are distributed on the housing body 10 through corresponding connection holes, forming multi-point distributed support for the LED display screen. Compared to single-point or a few-point support, this evenly distributes the weight of the display screen and external loads (such as vibration and wind force) to multiple connection points, preventing deformation or damage to local connection structures 23 due to concentrated stress. Simultaneously, multi-point support reduces the risk of bending deformation of the display module due to its own weight, ensuring a more stable connection between the display screen and the housing body 10, and reducing overall offset problems caused by single-point loosening during use.

[0053] The one-to-one correspondence between multiple screen connectors 20 and connection holes allows operators to independently adjust different areas of the display screen: by rotating the screen connector 20 adjustment structure 21 at a specific position, only the support height of the connection structure 23 in that area is changed, thereby achieving precise correction of local step differences in the display screen.

[0054] During long-term use, if a screen connector 20 or connecting hole malfunctions due to wear, aging, or other reasons, multiple corresponding structures can share the load through other normal connection points, preventing the entire display screen from loosening or falling due to a single point of failure. This redundant design enhances the fault tolerance of the LED display cabinet and reduces the impact of sudden failures on equipment operation. Especially in scenarios with high maintenance difficulty, such as large outdoor screens, it can reduce downtime caused by emergency repairs and ensure the continuity of equipment operation.

[0055] Multiple connection holes are evenly distributed on the cabinet body 10, which allows the supporting force transmitted by the screen connector 20 to be applied more evenly to the cabinet body 10, avoiding deformation of the cabinet body 10 frame due to excessive local stress. Compared with a design where a few connection points concentrate the force, this distributed force transmission method can better protect the structural integrity of the cabinet body 10, extend its service life, and indirectly ensure the stability of the installation reference of the display screen (deformation of the cabinet body 10 will directly affect the flatness of the display surface).

[0056] In this embodiment, multiple connecting holes are spaced circumferentially along the body 10 of the enclosure. The edge difference between adjacent screens often manifests as a small local drop (such as a misalignment at the midpoint of a side edge). The circumferentially spaced connecting holes ensure that the adjustment points correspond one-to-one with the edge difference positions. Operators can directly adjust the screen connectors 20 at the corresponding circumferential positions for specific edge difference positions at the splicing points of adjacent screens (such as the upper left corner seam or the midpoint of the right side edge), correcting only the height of that local area and avoiding interference with other areas of the screen. The density of the circumferentially spaced adjustment points can be designed according to the edge length (such as one every 10cm), ensuring that even minute edge differences can be accurately captured and corrected, with higher adjustment accuracy than non-circumferentially distributed designs.

[0057] According to another aspect of this application, an LED display device is provided, comprising an LED display cabinet and an LED display screen 30 mounted on the LED display cabinet, wherein the LED display cabinet is the aforementioned LED display cabinet. The height difference between display screens (especially the height misalignment of adjacent display screen edges) is a core pain point for large splicing screens. Traditional solutions require disassembling the entire display module for adjustment. In this application, since the screen connectors 20 of each LED display cabinet adopt a separation of "adjustment structure 21 at the rear and connection structure 23 at the front," operators can directly rotate the adjustment structure 21 at a specific position at the rear of multiple cabinets. For any height difference between adjacent display screens, there is no need to disassemble the front-mounted display screen; the support height of the corresponding connection structure 23 can be changed simply by adjusting the rear end, thus correcting the flatness of the splicing point in real time. Even in scenarios with densely arranged multiple screens (such as a full-wall splicing), adjustment can be completed through the operating space at the rear of the cabinet, avoiding the repeated cycle of "disassembling screen - adjusting - installing screen - re-inspecting" in traditional solutions, and thoroughly simplifying the height difference correction steps in terms of operation. The step difference between displays often manifests as a height deviation at the micrometer level, making it difficult to guarantee accuracy using traditional fuzzy adjustment methods. This application achieves precise control of step difference adjustment through the quantization characteristics of threaded connections: for complex step differences in multi-screen splicing (such as the cumulative deviation of multiple consecutive screens in a certain area), the connection structure 23 of the corresponding cabinet can be adjusted one by one to achieve "point-by-point calibration and overall leveling," ensuring that the display surface of the entire display screen forms a complete plane and avoiding secondary step differences caused by excessive or insufficient local adjustment.

[0058] Initially, the enclosure is fixed to the steel structure using connecting plates and screws to ensure a uniform installation benchmark, laying a stable foundation for subsequent step adjustment. Standardized connections between the power cord and the network cable ensure the stability of power supply and signal transmission for the screen, preventing interference with step adjustment due to wiring issues. Step adjustment is performed after the overall module assembly is complete. After identifying the step position, operators do not need to disassemble the installed modules; they can directly use a screwdriver to tighten the rear adjustment magnet sleeve through the rear adjustment hole on the rear mounting surface of the enclosure. During adjustment, the height of the magnetic surface changes through the interaction between the rear adjustment magnet sleeve and the enclosure (similar to the transmission logic of a threaded connection), thereby synchronously adjusting the module's light surface and achieving real-time correction of the step. For step positions appearing on the screen, the rear adjustment hole at the rear of the enclosure directly acts on the corresponding area's rear adjustment magnet sleeve, ensuring a clear adjustment target and avoiding unnecessary interference to areas without step.

[0059] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An LED display cabinet, characterized in that, The LED display cabinet has a front end and a rear end. The front end of the LED display cabinet is used to mount an LED display screen, and the rear end of the LED display cabinet is disposed opposite to the front end. The LED display cabinet includes: The LED display cabinet body has a connecting hole, which includes a threaded through hole section that extends from the front end to the rear end of the LED display cabinet body. A screen connector, comprising an adjustment structure, a threaded connection section, and a connection structure, wherein the threaded connection section is screwed into the threaded through hole section, the connection structure is located at the end of the threaded connection section near the front end of the LED display cabinet, and the adjustment structure is located at the end of the threaded connection section near the rear end of the LED display cabinet. The connection structure is used to connect to the LED display screen.

2. The LED display cabinet according to claim 1, characterized in that, The connection hole also includes an adjustment hole section, which is located at the rear end of the LED display cabinet and forms an adjustment opening at the rear end of the LED display cabinet. The adjustment hole section is connected to the threaded through hole section, and the adjustment structure is located in the adjustment hole section.

3. The LED display cabinet according to claim 1, characterized in that, The connecting hole also includes a mounting hole section, which is located at the front end of the LED display cabinet and forms a mounting opening at the front end of the LED display cabinet. The mounting hole section communicates with the threaded through hole section, and the connecting structure is located in the mounting hole section.

4. The LED display cabinet according to claim 1, characterized in that, The adjustment structure includes a drive groove, which is used to engage with the screwing end of an external tool.

5. The LED display cabinet according to claim 1, characterized in that, The LED display screen is provided with a first magnetic attraction part, and the connection structure includes a second magnetic attraction part, which is used to magnetically attract the first magnetic attraction part.

6. The LED display cabinet according to claim 3, characterized in that, The LED display cabinet also includes an elastic anti-loosening part, the two ends of which abut against the bottom ends of the connecting structure and the mounting hole section, respectively.

7. The LED display cabinet according to claim 6, characterized in that, The elastic anti-loosening part includes a spring, and the two ends of the spring abut against the bottom ends of the connecting structure and the mounting hole section, respectively.

8. The LED display cabinet according to claim 1, characterized in that, There are multiple connection holes and multiple screen connectors, and each connection hole corresponds to a different screen connector.

9. The LED display cabinet according to claim 8, characterized in that, Multiple connection holes are spaced apart along the circumference of the box body.

10. An LED display device, characterized in that, The LED display device includes an LED display cabinet and an LED display screen mounted on the LED display cabinet, wherein the LED display cabinet is the LED display cabinet according to any one of claims 1 to 9.

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