An anti-reflective structure between cabinet modules and an LED display module
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-06
- Publication Date
- 2026-08-11
AI Technical Summary
然而，这种方法需要额外的二次加工步骤，增加了生产成本和工艺复杂性
[0013]本技术方案，通过在压铸的箱体框上做V形槽，V形槽结构做到模具上，压铸箱体框成形时直接就包含有V形槽，不增加生产成本。箱体框在后续加工处理时，先表面喷粉，再机械加工表面，V形槽内就会有喷粉，遮盖了原来的金属白色。V形槽内的喷粉是由表面喷粉一次完成的，没有二次加工的费用。通过本方案可以在不增加成本的情况下解决显示模组之间间隙反光的问题。
Smart Images
Figure CN224625143U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED display module technology, and more specifically, to an anti-reflection structure between cabinet modules and an LED display module. Background Technology
[0002] LED displays occupy an important position in modern display technology, widely used in advertising, stage performances, conferences, and monitoring. However, during the assembly and use of LED displays, the physical splicing between modules significantly impacts the display effect. Because LED display modules generate considerable heat during operation, a certain gap is usually left between modules to prevent damage caused by thermal expansion and contraction leading to mutual compression. Figure 1 (As shown). While this gap effectively prevents module damage due to thermal expansion, it also introduces a new problem: the appearance of bright lines at the physical splicing points. Specifically, because modules need to be installed on the surface of the cabinet frame, a milling cutter is used to mill the surface of the cabinet frame flat to ensure a smooth mounting surface. When the installed display screen has gaps between the modules, the metallic white surface of the cabinet frame can be seen through these gaps when viewed from the front with the screen off (e.g.,...). Figure 2 As shown). In the prior art, (such as...) Figure 3 (As shown) To solve this problem, a common method is to process the surface of the housing frame flat and then coat or screen-print black stripes 5, so that the gaps between the modules correspond to the areas of the black stripes 5, thereby blocking the white reflection of the metal. However, this method requires an additional secondary processing step, increasing production costs and process complexity. Utility Model Content
[0003] This utility model discloses an anti-reflection structure between box modules, which aims to solve the problems mentioned above.
[0004] The present invention adopts the following solution:
[0005] An anti-reflection structure between cabinet modules includes a cabinet frame suitable for mounting display modules. The cabinet frame has a V-shaped groove formed at the gap between adjacent display modules. The opening width of the V-shaped groove is larger than the gap between two adjacent display modules to prevent light from being reflected out of the gap.
[0006] Furthermore, a powder coating layer is sprayed inside the V-shaped groove, and the powder coating layer is a black powder coating.
[0007] Furthermore, the V-shaped groove and the box frame are integrally formed during the die-casting process.
[0008] Furthermore, the depth of the V-groove ranges from 1 mm to 3 mm, and the width ranges from 2 mm to 5 mm.
[0009] Furthermore, the inner wall angle of the V-groove is between 30° and 60°.
[0010] Furthermore, the bottom of the V-groove is provided with a rounded transition to avoid stress concentration that may be caused by the right-angled edge.
[0011] This utility model also provides an LED display module, including a plurality of display modules spliced on the cabinet frame, and the cabinet frame is provided with an anti-reflection structure between the cabinet modules.
[0012] Beneficial effects:
[0013] This technical solution involves creating V-shaped grooves on the die-cast cabinet frame. The V-shaped groove structure is integrated into the mold, meaning it's directly included during the die-casting process, thus not increasing production costs. During subsequent processing, the cabinet frame undergoes powder coating followed by machining. The powder coating within the V-shaped grooves covers the original metallic white surface. This powder coating within the V-shaped grooves is completed in a single step of the surface powder coating process, eliminating the cost of secondary processing. This solution effectively resolves the issue of glare between display modules without increasing costs. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the splicing structure of display modules in the existing technology;
[0015] Figure 2 This is a schematic diagram of the gap structure when splicing display modules in the prior art;
[0016] Figure 3 This is a schematic diagram of a display module in the prior art that uses black bars to prevent glare.
[0017] Figure 4 This is a schematic diagram of an anti-reflection structure between box modules in this embodiment;
[0018] Reference numerals: 1. Box frame; 11. Box frame surface; 2. Gap; 3. V-groove; 4. Display module; 5. Black bar. Detailed Implementation
[0019] Combination Figure 4 As shown, this embodiment provides an LED display module, including a plurality of display modules 4 spliced on the cabinet frame 1. The cabinet frame 1 is provided with an anti-reflection structure between the cabinet modules. The anti-reflection structure between the cabinet modules is disposed on the cabinet frame 1, which is suitable for mounting the display modules 4. Specifically, the cabinet frame 1 forms a V-shaped groove 3 at the gap 2 between adjacent display modules 4. The opening width of the V-shaped groove is larger than the gap 2 between two adjacent display modules 4 to prevent light from reflecting out of the gap 2.
[0020] Continue to combine Figure 4 As shown, in this embodiment, the housing frame 1 is integrally formed by die casting. A mounting structure for installing the display module 4 is also formed on the housing frame 1. Here, the gap 2 between the display module 4 is located at the midpoint of adjacent mounting structures, thus a V-groove can be formed at this position. The V-groove structure is integrated into the die-casting mold, so the die-cast housing frame 1 directly includes the V-groove during forming, thus not increasing production costs. After the housing frame 1 is formed, its surface is machined using high-precision milling equipment, such as milling flattening, to ensure the flatness of the mounting surface. Subsequently, powder coating is applied to the surface of the housing frame 1. The powder coating material can be an existing environmentally friendly black powder coating, with a particle size range controlled between 20μm and 50μm to ensure coating uniformity and adhesion. The powder coating layer covers the entire surface of the housing frame 1, including the inner wall of the V-groove 6. At this point, the inside of the V-groove is naturally covered with a complete powder coating layer, completely concealing the original metallic white area. Since the powder coating is applied in one step by spraying powder onto the surface, no secondary processing is required, which simplifies the production process and improves production efficiency.
[0021] Combination Figure 4 As shown, viewed from the front of the assembled LED display screen, the mounting gap 2 of the display module 4 is directly opposite the V-shaped groove. On one hand, the powder coating inside the V-shaped groove eliminates reflections in the metallic white area; on the other hand, the spatial structure of the V-shaped groove has strong light absorption capabilities. Specifically, when light enters the V-shaped groove, it undergoes multiple reflections due to the angle design of the inner wall, ultimately being absorbed by the black powder coating, thus reducing light reflection. This structure makes the gap 2 of the module appear closer to black when viewed from the front, significantly improving image quality. Furthermore, since the V-shaped groove is directly integrated into the die-casting mold, this structure is included during the forming of the cabinet frame 1, eliminating the need for additional processing steps and further reducing production costs.
[0022] The geometric parameters of the V-groove are optimized and adjusted according to the actual module gap 2 dimensions. Its depth typically ranges from 1mm to 3mm, and its width from 2mm to 5mm, ensuring that the position of the module gap 2 directly opposite the V-groove completely covers the gap 2 area. Furthermore, the inner wall angle of the V-groove is designed as an acute angle, preferably between 30° and 60°, to enhance the absorption effect after multiple reflections of light, thus creating a black hole effect. Preferably, the bottom of the V-groove can adopt a rounded transition design to avoid stress concentration problems that may be caused by right angles, while also improving the overall structural strength of the housing frame 1.
[0023] This embodiment is applicable to LED display cabinet frames 1 of various specifications, exhibiting wide applicability and versatility. For example, for LED displays with different pitches, the depth and width of the V-groove can be adjusted according to the actual dimensions of the module gaps 2 during the fabrication of the cabinet frame 1 to meet the needs of various application scenarios. Furthermore, the black powder coating material selected in the powder coating process meets the green production requirements of modern manufacturing, being not only environmentally friendly but also possessing excellent weather resistance and corrosion resistance, further enhancing product reliability.
[0024] In practical applications, the integrated design significantly reduces production costs and improves production efficiency. For example, in large-scale production, the integrated design of the V-groove and the box frame 1 avoids secondary processing costs and shortens the production cycle of a single box frame 1. Simultaneously, the powder coating is completed in one step by surface powder coating, simplifying the production process and reducing manual intervention, further enhancing the automation level of production. Furthermore, due to the rational spatial structure design of the V-groove, it enhances light absorption capacity while ensuring the structural strength of the box frame 1, resulting in excellent stability and durability during long-term use.
[0025] It should be understood that the above are only preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.
[0026] The accompanying drawings used in the above description of the embodiments only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
Claims
1. An anti-reflective structure between cabinet modules, comprising a cabinet frame suitable for mounting display modules, characterized in that, The housing frame has a V-shaped groove formed at the gap between adjacent display modules. The opening width of the V-shaped groove is larger than the gap between two adjacent display modules to prevent light from being reflected out of the gap.
2. The anti-reflective structure between the housing modules according to claim 1, characterized in that, A powder coating layer is sprayed inside the V-shaped groove, and the powder coating layer is a black powder coating.
3. The anti-reflective structure between the housing modules according to claim 1, characterized in that, The V-shaped groove and the box frame are integrally formed during the die casting process.
4. The anti-reflective structure between the housing modules according to claim 1, characterized in that, The depth of the V-groove ranges from 1 mm to 3 mm, and the width ranges from 2 mm to 5 mm.
5. The anti-reflective structure between the housing modules according to claim 1, characterized in that, The inner wall angle of the V-groove is between 30° and 60°.
6. The anti-reflection structure between the housing modules according to claim 1, characterized in that, The bottom of the V-groove is provided with a rounded transition to avoid stress concentration that may be caused by the right angle.
7. An LED display module, characterized in that, It includes several display modules spliced on the cabinet frame, and the cabinet frame is provided with an anti-reflection structure between the cabinet modules as described in any one of claims 1-6.