Modular rotatable LED display
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN LINGCAN OPTOELECTRONICS CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-07
Smart Images

Figure CN224472148U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of display technology, and in particular to an LED display with rotatable modules. Background Technology
[0002] LED displays often require the assembly of multiple modules, and sometimes rotation is necessary due to installation and placement requirements. A single module typically includes a power supply, receiver card, and LED board. When a traditional LED display is rotated 90°, the arrangement of the LED chips changes, causing color distortion when viewed from the sides at large angles. This severely affects the viewing experience and prevents the display from accurately reproducing the original colors of the video, as shown in the attached diagram in the instruction manual. Figure 4 As shown, the LED chips include red (R), green (G), and blue (B) LEDs arranged vertically. In this configuration, no color distortion is observed when viewed from large angles on the left and right sides. However, when the module is rotated 90°, as shown... Figure 5 As shown in the case of rotating 90° counterclockwise, when viewed from a large angle on the left, the red light (R) will block the green light (G) and the blue light (B), making the display screen appear purplish. When viewed from a large angle on the right, the blue light (B) will block the green light (G) and the red light (R), making the display screen appear bluish.
[0003] Furthermore, in practical applications, for example, a 1000mm*500mm (length*width) LED display module may need to be rotated to a 500mm*1000mm (length*width) size due to installation environment or actual usage requirements. Since the LED arrangement is fixed, this rotation will cause color distortion when viewed at large angles from the left and right sides. To solve this problem, see the attached diagram in the instruction manual. Figure 6 As shown, typically two 500mm*500mm (length*width) LED display modules are used, stacked vertically to form a 500mm*1000mm (length*width) LED display module. However, each 500mm*500mm (length*width) LED display module is equipped with a power supply and a receiver card, which is relatively... Figure 7 For an LED display module with dimensions of 500mm*1000mm (length*width) shown, there is an additional manufacturing cost for a power supply and a receiver card. Of course, there are other additional components as well. Here, we only point out the power supply and receiver card, which have higher costs. Utility Model Content
[0004] Based on this, a rotatable LED display module is provided, which ensures that there is no color distortion when viewed at large angles from both sides after rotation, and also reduces the production cost of the LED display.
[0005] A modular rotatable LED display screen includes a housing and modules. The modules are equipped with light panels. The front of the housing is equipped with a HUB board, which integrates a power supply, a receiver card, and connectors. The back of the module is equipped with 0° connectors and 90° connectors on the light panel. Both the 0° connectors and the 90° connectors can be plugged into the connectors and connected to the power supply via telecommunications.
[0006] The telecommunication connection between the HUB board, power supply, receiver card, and connectors is a standard technical method for LED displays and will not be elaborated upon here. The front of the LED board has several LED chips arranged in the same direction. When the connectors are at 0° angles, the red (R), green (G), and blue (B) LEDs on the chips are arranged vertically. When arranged vertically, there is no color distortion when viewed from the left or right sides of the module at large angles. When the LED display needs to be rotated, the red (R), green (G), and blue (B) LEDs are arranged horizontally. When viewed from wide angles on the left and right sides, the red light (R) may obstruct the green light (G) and blue light (B), or the blue light (B) may obstruct the green light (G) and red light (R), resulting in a color shift problem. In this case, the module can be rotated to maintain the vertical arrangement of the LED chips on the LED board, and the 90° connectors can be used to connect them, thus avoiding the color shift caused by the change in the arrangement direction of the LED chips when the module is rotated.
[0007] Preferably, the front of the housing is provided with positioning pin holes, and correspondingly, the back of the light panel is provided with positioning pins. The positioning pins are inserted into the positioning pin holes to facilitate module positioning and installation.
[0008] Preferably, a safety rope is provided between the housing and the light board. A safety rope hook hole is provided on the side of the PCB circuit board, and a safety rope fixing post is provided on the back of the light board. One end of the safety rope is fixed to the safety rope hook hole, and the other end of the safety rope is fixed to the safety rope fixing post. The safety rope effectively prevents the module from falling and being damaged during module installation, maintenance, etc., and ensures high safety.
[0009] The beneficial effects of this utility model are:
[0010] The aforementioned rotatable LED display module utilizes a rotatable assembly structure design. When the module is rotated, the corresponding rotating assembly ensures that the red (R), green (G), and blue (B) LEDs on the LED chips are arranged vertically, solving the color distortion problem that occurs when viewing the screen from large angles on the left and right sides when using traditional rotating modules. Furthermore, during splicing, because the module can be rotated, it can be spliced both horizontally and vertically, ensuring the vertical arrangement of the LED chips in both cases. This makes LED display splicing more flexible, allowing for more diverse splicing screen designs. It also eliminates the need for color distortion issues caused by module rotation, reducing manufacturing and operating costs. In addition, the use of positioning pins and positioning pin holes enables quick and stable assembly of the module. The safety rope design effectively prevents damage caused by the module falling during installation and maintenance, enhancing safety. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the box structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the module structure of this utility model;
[0013] Figure 3 This is a schematic diagram of the connection structure between the housing and the module in this utility model;
[0014] Figure 4 This is a schematic diagram of the LED chips arranged on the front of the lamp board in this utility model;
[0015] Figure 5 for Figure 4 A schematic diagram showing the LED chip rotated 90°.
[0016] Figure 6 A schematic diagram illustrating the use of traditional display screen splicing;
[0017] Figure 7 This is a schematic diagram illustrating the rotating use of the LED display screen in this utility model.
[0018] in:
[0019] 1. Cabinet; 11. HUB board; 12. Power supply; 13. Receiver card; 14. Connector; 15. Safety rope hook hole; 16. Positioning pin hole;
[0020] 2. Light panel; 21. 0° connector; 22. 90° connector; 23. Positioning pin; 24. Safety rope fixing post. Detailed Implementation
[0021] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.
[0022] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0024] like Figures 1 to 3 As shown, this utility model provides a modular rotatable LED display screen, including a housing 1 and a module. The module includes a lamp board 2. The front of the housing 1 is provided with a HUB board 11, which integrates a power supply 12, a receiver card 13, and a connector 14. The back of the lamp board 2 is provided with a 0° connector 21 and a 90° connector 22. Both the 0° connector 21 and the 90° connector 22 can be plugged into the connector 14 and connected to the power supply via telecommunications.
[0025] The HUB board 11, power supply 12, receiver card 13, and connector 14 are connected by telecommunications, which is a standard technical method for LED display modules and will not be elaborated here. The front of the lamp board 2 has several LED chips arranged in the same direction. When the 0° connector 21 and connector 14 are aligned... Figure 4 As shown, the red (R), green (G), and blue (B) LEDs on the LED chip are arranged vertically. When arranged vertically, no color distortion occurs when viewed from large angles on the left and right sides of the module. When the LED display needs to be rotated, as... Figure 5As shown, the red (R), green (G), and blue (B) lights are arranged horizontally from left to right. When viewed from a wide angle from the left and right sides, the red (R) light will obstruct the green (G) and blue (B) lights, or the blue (B) light will obstruct the green (G) and red (R) lights, resulting in a color distortion problem. In this case, the LED board 2 can be rotated to maintain the vertical arrangement of the red (R), green (G), and blue (B) LED chips on the LED board 2. Then, by connecting the 90° connector 22 to the connector 14, the color distortion caused by the change in the arrangement direction of the LED chips can be avoided when the module is rotated.
[0026] The rotatable module design saves on manufacturing and operating costs when used in LED display splicing. Specifically, taking a 1000mm*500mm (length*width) LED display as an example, under normal use, the red (R), green (G), and blue (B) LEDs on the module's LED board are arranged vertically, and there is no color distortion when viewed from large angles on the left and right. However, when the LED display needs to be rotated for vertical use (i.e., using the 500mm*1000mm (length*width) dimensions), the red (R), green (G), and blue (B) LEDs on the module's LED board are arranged horizontally. When viewed from large angles on the left and right, the red (R) LEDs may partially obstruct the green (G) and blue (B) LEDs, or vice versa, resulting in color distortion. To address this issue, such as... Figure 6 As shown, the traditional method involves splicing two 500mm*500mm (length*width) LED displays together to achieve a 500mm*1000mm (length*width) size with red (R), green (G), and blue (B) LEDs arranged vertically on the LED chips. To ensure each module can operate independently, a single LED display requires components such as a power supply and a receiver card for power supply and signal processing. Here, we only use the more expensive power supply and receiver card as examples. Splicing two 500mm*500mm (length*width) LED displays together incurs additional manufacturing or usage costs for a power supply and a receiver card compared to a single 1000mm*500mm (length*width) LED display. However, in the design of this utility model, as... Figure 7As shown, simply rotating a 1000mm*500mm (length*width) LED display by 90° will yield a 500mm*1000mm (length*width) LED display. Then, by rotating the module and connecting it to the connector 14 via the 90° connector 22 on the lamp board 2, the red (R), green (G), and blue (B) LEDs on the LED chips are arranged vertically, resolving the color distortion issue when viewed at large left and right angles. Furthermore, during splicing, because the module can be rotated, it can be spliced both horizontally and vertically, ensuring the vertical arrangement of the LED chips in both cases. This makes module splicing more flexible and allows for more diverse splicing module designs.
[0027] Furthermore, the front of the housing 1 is provided with a positioning pin hole 16, and correspondingly, the back of the lamp panel 2 is provided with a positioning pin 23. The positioning pin 23 is inserted into the positioning pin hole 16 to facilitate module positioning and installation.
[0028] Preferably, a safety rope is provided between the housing 1 and the lamp board 2. A safety rope hook hole 15 is provided on the side of the PCB circuit board 11, and a safety rope fixing post 24 is provided on the back of the lamp board 2. One end of the safety rope is fixed on the safety rope hook hole 15, and the other end of the safety rope is fixed on the safety rope fixing post 24. The safety rope effectively prevents the module from falling and being damaged during module installation, maintenance, etc., and has high safety.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A modular LED display screen, characterized in that, It includes a housing (1) and a module. The module is equipped with a light panel (2). The front of the housing (1) is equipped with a HUB board (11). The HUB board (11) integrates a power supply (12), a receiver card (13), and a connector (14). The back of the light panel (2) is equipped with a 0° connector (21) and a 90° connector (22). Both the 0° connector (21) and the 90° connector (22) can be plugged into the connector (14) and connected to the telecommunications network.
2. The rotatable LED display module according to claim 1, characterized in that, The front of the housing (1) is provided with a positioning pin hole (16), and the back of the lamp panel (2) is provided with a positioning pin (23), which is inserted into the positioning pin hole (16).
3. The rotatable LED display module according to claim 1, characterized in that, A safety rope is provided between the housing (1) and the light panel (2). A safety rope hook hole (15) is provided on the side of the HUB panel (11). A safety rope fixing post (24) is provided on the back of the light panel (2). One end of the safety rope is fixed on the safety rope hook hole (15), and the other end of the safety rope is fixed on the safety rope fixing post (24).