LED display module dynamic adjusting mechanism with self-adaptive cambered surface

Abstract

The invention discloses an LED display module dynamic adjusting mechanism with a self-adaptive cambered surface, and relates to the technical field of LED display. The LED display screen comprises a display panel, a display driving module, a side lamp module, a light reflecting module and a cylindrical lens. The splicing side of the display panel is coated with a light guide coating, the display driving module is located on the back side of the panel and provided with a power adjusting module, the side lamp module comprises spotlight beads and is electrically connected with the driving module, the light reflecting modules are provided with light grooves and reflecting slopes, the cylindrical lenses are installed between the adjacent light reflecting modules, and the focal lines of the cylindrical lenses are aligned with the splicing position of the panel. The power of the shared panel is collected through the driving module, the power of the spotlight is adjusted according to scenes, light is reflected by the light reflection module and focused to the splicing position through the cylindrical lens, and the light is diffused through the light guide coating. According to the mechanism, seamless brightness transition between the splicing gap and the display panel body is achieved, visual faults are eliminated, energy-saving output control is achieved, and the mechanism is suitable for high-end venue LED display.

Description

Technical Field

[0001] This invention relates to the field of LED display technology, and in particular to a dynamic adjustment mechanism for an adaptive curved LED display module. Background Technology

[0002] With the widespread adoption of LED display technology in high-end venues such as science and technology museums, theaters, and large convention centers, large-size curved LED splicing screens have become a core application form due to their immersive visual experience. However, the existing splicing adjustment mechanisms of LED display modules have significant technical shortcomings in terms of gap brightness compensation and curved surface adaptive adaptation, making it difficult to meet the demands of high-definition display.

[0003] In existing methods, the fill light mode for the gaps between LED display modules is fixed, and the output power of the fill light module is constant, making it impossible to match the real-time output power changes of adjacent display panels. When the panel displays content with changing brightness scenes, fixed fill light is prone to "overexposure of light spots" or "white space in dark areas," resulting in a noticeable brightness discontinuity between the splicing gap and the main panel. Especially when playing high-definition videos, "black lines" can easily appear at the gaps, disrupting visual continuity and reducing the product's display quality. Moreover, fixed-power fill light not only fails to effectively avoid uneven light distribution at the gaps but also wastes energy.

[0004] In summary, designing an LED display module with dynamic adjustment and precise supplemental lighting to improve the product competitiveness of LED display modules has become a technical problem that needs to be solved. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention provides a dynamic adjustment mechanism for an adaptive curved LED display module, comprising the following structures: a display panel for displaying screen content, with a light guide coating applied to the sides of adjacent display panels where they are joined; a display driving module located on the back of the display panel for driving and adjusting the display panel; a side lamp module located on the back of the display panel and electrically connected to the display driving module, the side lamp module being equipped with multiple spotlight beads for emitting parallel light rays outward; a reflector module fixed to the periphery of the side lamp module and having a light groove, the inner wall of which has a reflective slope inclined towards the spotlight beads; a lens mounting area formed between adjacent reflector modules, the lens mounting area being aligned with the joint position of the adjacent two display panels; and a cylindrical lens mounted in the lens mounting area of ​​the adjacent two reflector modules, with its convex curved surface facing the reflective slope of the light groove.

[0006] Preferably, the light guide coating is made of polycarbonate material.

[0007] Preferably, the display driver module is provided with multiple sets of conductive contact points on its ring side, and the side lamp module has a set of contact grooves on the side facing the display driver module, with conductive springs that are pressed into contact with the conductive contact points disposed in the contact grooves.

[0008] Preferably, the inner wall of the light slot of the reflective module is coated with a reflective coating, wherein the spotlight bulb protrudes from the inner wall of the light slot and its surface is not coated with a reflective coating.

[0009] Preferably, the reflective module is provided with an elastic plate, and the outer ring side of the display driving module is provided with a locking part. The locking part is provided with an outer opening slope and an inner locking groove. The elastic plate is locked into the inner locking groove along the outer opening slope.

[0010] Preferably, the cylindrical lens has lens blocks on both sides, and the reflective module has lens slots that are compatible with the lens blocks.

[0011] Preferably, the display driver module is equipped with a power adjustment module for regulating the real-time power of the spotlight bulbs.

[0012] Preferably, the focal line of the cylindrical lens is aligned with the splicing position of two adjacent display panels.

[0013] This invention also provides a method for dynamically adjusting an LED display module, as follows: Step 1: The display driver module collects the output power of the display panel it is connected to in real time and shares the power data with adjacent display driver modules.

[0014] Step 2: Based on the average output power of adjacent display panels and combined with the brightness-power characteristic curve, analyze the supplementary brightness required for the splicing gap and the baseline value of the spotlight lamp power.

[0015] Step 3: Determine the spotlight power for each scene based on whether the power of adjacent display panels is the same. If they are the same, the power on both sides is consistent; if they are different, a power complementary allocation strategy is adopted.

[0016] Step 4: The display driver module uses the power adjustment module to control the spotlight LEDs to emit parallel light beams at a set power.

[0017] Step 5: The spotlight beam enters the light slot of the reflector module, is reflected by the reflective inclined surface, and is then transmitted to the cylindrical lens.

[0018] Step Six: The cylindrical lens focuses the light to the splicing position, and the light-guiding coating diffuses the focused light evenly, achieving a seamless brightness transition between the gap and the main body.

[0019] Compared with existing technologies, the beneficial effects of this invention are: This invention achieves precise brightness compensation for gaps through the collaborative use of multiple components: by designing a side light module, a reflector module, and a cylindrical lens, the focal line of the cylindrical lens is precisely aligned with the splicing position of adjacent display panels, focusing the reflected light onto the splicing gap. Furthermore, a light-guiding coating further diffuses the focused light evenly to the periphery of the gap, avoiding "light spots" or "dark areas" in the supplementary lighting. Ultimately, it achieves a seamless brightness transition between the splicing gap and the main panel, completely eliminating visual breaks in scenarios such as high-definition video playback, and meeting the high display requirements of high-end venues such as science museums and theaters.

[0020] This invention relies on the real-time power acquisition and sharing function of the display driver module to dynamically calculate the required supplementary brightness of the gap based on the output power of adjacent panels. Through a situational control strategy, combined with the power adjustment module to adjust the spotlight output in real time, it ensures that the supplementary light brightness always matches the current display state of the panel. This achieves energy-saving output of supplementary light control and avoids the problem of being too bright or too dark caused by fixed supplementary light. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the dynamic adjustment mechanism for the LED display module in this invention.

[0022] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle.

[0023] Figure 3 for Figure 1 A magnified structural diagram of section B in the middle.

[0024] Figure 4 for Figure 2 A magnified structural diagram of part C in the middle.

[0025] Figure 5 This is a partial structural diagram of the display panel and display driver module in this invention.

[0026] Figure 6 This is a schematic diagram of the side light module and reflector module in this invention.

[0027] Wherein: 1-Display panel, 101-Light guide coating; 2-Display drive module, 201-Conductive contact point, 202-Card slot, 2021-Outer opening bevel, 2022-Inner slot; 3-Side lamp module, 301-Spotlight lamp bead, 302-Contact groove, 303-Conductive spring; 4-Reflective module, 401-Elastic card plate, 402-Light slot, 403-Reflective bevel, 404-Reflective coating, 405-Lens slot, 406-Lens mounting area; 5-Cylindrical lens, 501-Lens block. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] Example 1: This invention designs a dynamic adjustment mechanism for an adaptive curved LED display module. Through the coordinated operation of multiple components, it achieves dynamic compensation for the brightness of splicing gaps. The core structures and functions are as follows: like Figure 1 , Figure 2 , Figure 4 The display panel 1, as the display carrier, is used to present the image content and is the basic visual output component of the LED display module. The splicing sides of two adjacent display panels 1 are coated with a light guide coating 101, which is made of polycarbonate material. The function of the light guide coating 101 is to evenly diffuse the supplementary light focused by the cylindrical lens 5 to the surrounding area of ​​the gap, avoiding supplementary light "spots" or "dark areas," ultimately achieving a seamless brightness transition between the splicing gap and the main body of the display panel 1.

[0030] The display driver module 2 is located on the back side of the display panel 1. It directly controls the image output and power output of the display panel 1. The system monitors and collects its own output power to the connected display panel 1 in real time, and adjacent display driver modules 2 can share output power data (e.g., the first and second display driver modules share P1 and P2 data). The display driver module 2 is equipped with a power adjustment module, which can adjust the actual output power of the spotlight beads 301 in real time based on the calculated target power.

[0031] Combination Figure 3 , Figure 5 The display driver module 2 has multiple sets of conductive contact points 201 on its ring side for establishing an electrical connection with the side light module 3. The outer ring side of the display driver module 2 is provided with a locking part 202, which includes an outer open inclined surface 2021 and an inner locking groove 2022 for cooperating with the elastic locking plate 401 of the reflector module 4 to fix the reflector module 4.

[0032] like Figure 2 , Figure 3 , Figure 6 The side light module 3 is located on the back side of the display panel 1 and is electrically connected to the display driver module 2. The side light module 3 provides parallel light to compensate for the brightness of the splicing gaps. It is equipped with multiple spotlight beads 301, which can emit parallel light outwards. The spotlight beads 301 protrude from the inner wall of the light groove 402 of the reflector module 4, and their surfaces are not coated with a reflective coating 404 (to avoid obstruction of light reflection and ensure that the light can be smoothly emitted into the light groove 402).

[0033] Combination Figure 5 , Figure 6 A set of contact grooves 302 is opened on the side of the side lamp module 3 facing the display driver module 2. A conductive spring piece 303 is arranged in the contact groove 302. The conductive spring piece 303 is pressed and contacted with the conductive contact point 201 of the display driver module 2 to achieve a stable electrical connection between the side lamp module 3 and the display driver module 2.

[0034] Combination Figure 2 , Figure 4 , Figure 6 The reflector module 4 is fixed to the periphery of the side lamp module 3 to guide and reflect the parallel light emitted by the spotlight bulb 301, ensuring that the light can be accurately projected onto the cylindrical lens 5. The reflector module 4 body is provided with a light groove 402, and the inner wall of the light groove 402 is provided with a reflective slope 403 (tilted towards the spotlight bulb 301, which can reflect the light of the spotlight bulb 301 to the cylindrical lens 5), and the inner wall of the light groove 402 is coated with a reflective coating 404.

[0035] Combination Figure 3 , Figure 5 , Figure 6 The reflective module 4 is equipped with a spring plate 401, which can be inserted into the inner slot 2022 along the outer opening slope 2021 of the display driver module 2 slot 202 during installation, so as to realize the fixed connection between the reflective module 4 and the display driver module 2.

[0036] like Figure 4 , Figure 6 A lens mounting area 406 is formed between two adjacent reflector modules 4, and the lens mounting area 406 is aligned with the splicing position of two adjacent display panels 1 (to ensure that the focused light of the subsequent cylindrical lens 5 can accurately cover the gap). The reflector module 4 has a lens slot 405, which is adapted to the lens block 501 of the cylindrical lens 5 for fixing the cylindrical lens 5.

[0037] Combination Figure 2 , Figure 4 , Figure 6 A cylindrical lens 5 is installed within the lens mounting area 406 of two adjacent reflector modules 4, focusing the light reflected by the reflector modules 4 onto the splicing position of the adjacent display panels 1 to achieve precise brightness compensation for the gap. The convex curved surface of the cylindrical lens 5 faces the reflecting slope 403 of the light slot 402, and can receive the light reflected by the reflecting slope 403. Lens locking blocks 501 are provided on both sides of the cylindrical lens 5, which cooperate with the lens locking slots 405 of the reflector modules 4 to achieve stable fixation of the cylindrical lens 5 within the lens mounting area 406. The focal line of the cylindrical lens 5 is aligned with the splicing area of ​​the two adjacent display panels 1, ensuring that the focused light can be accurately projected onto the gap area and avoiding offset of the supplementary lighting area.

[0038] Example 2: This invention achieves precise brightness compensation for splicing gaps through a four-step process: "real-time acquisition - dynamic calculation - scene-specific adjustment - lighting optimization." The specific steps are as follows: Step 1: Real-time acquisition of output power from the display panel The display driver module 2 monitors and collects its own output power to the connected display panel 1 in real time. Let two adjacent display driver modules 2 be designated as the "first display driver module" and the "second display driver module". The output power of the display panel 1 controlled by the first display driver module is denoted as P1, and the output power of the display panel 1 controlled by the second display driver module is denoted as P2. The two display driver modules 2 exchange and share the real-time data of P1 and P2 through their built-in communication unit, ensuring that both obtain complete power information.

[0039] Step 2: Calculate the additional brightness required for the splicing gaps. Based on the output powers P1 and P2 of adjacent display panels 1, the required supplementary brightness L at the splicing seam is determined: L is positively correlated with the average value of P1 and P2, i.e., L∝(P1+P2) / 2. Through the above proportional relationship, combined with the brightness-power characteristic curve of display panel 1, the "benchmark value of light power required for the splicing seam to reach brightness L at the current moment" is dynamically analyzed, providing a basis for subsequent power adjustment of spotlight beads 301.

[0040] Step 3: Determine the spotlight LED power for different scenarios Based on whether P1 and P2 are equal, two scenarios are used to formulate power control strategies for the 301 spotlight LEDs to ensure uniform illumination: Scenario 1. Adjacent display panels 1 have the same output power (P1=P2) The first and second display driving modules respectively drive the spotlight beads 301 of the side lamp module 3 connected to them, and control the light source power of the spotlight beads 301 to be the same. This power must meet the requirement that "the brightness formed at the splicing gap after the light from the spotlight beads 301 is reflected by the reflecting slope 403 and focused by the cylindrical lens 5 is exactly equal to L", ensuring that the brightness of the gap is consistent with the brightness of the main body of the display panel 1, with no significant difference.

[0041] Scenario 2. Adjacent display panels 1 have different output powers (P1≠P2) A "power complementary allocation" strategy is adopted to avoid uneven lighting caused by excessively high or low power of a single spotlight LED 301. The light source power Px of the spotlight LED 301 driven by the first display driver module is positively correlated with P2 / (P1+P2), i.e., Px∝[P2 / (P1+P2)]. The light source power Py of the spotlight LED 301 driven by the second display driver module is positively correlated with P1 / (P1+P2), i.e., Py∝[P1 / (P1+P2)].

[0042] If P1 > P2 (the first display panel 1 has higher power), then the first display driver module, having already provided higher power to the display panel 1, allocates a lower proportion of power to the spotlight beads 301 (Px is smaller). The second display driver module, having provided lower power to the display panel 1, allocates a higher proportion of power to the spotlight beads 301 (Py is larger). Together, they ensure that the total fill light brightness of the splicing gap reaches L, thus achieving the energy-saving output requirement.

[0043] Step 4: Real-time power control and light optimization The power adjustment modules of each display driver module 2 adjust the actual output power of the spotlight beads 301 in real time according to Px and Py calculated in step 3 to ensure power matching requirements. The parallel light emitted by the spotlight beads 301 enters the light groove 402 of the reflector module 4, and after being reflected by the reflective inclined surface 403 on the inner wall of the light groove 402, it is transmitted to the cylindrical lens 5. The cylindrical lens 5 focuses the reflected light and projects it onto the splicing area of ​​the adjacent display panel 1. The light guide coating 101 on the splicing side of the display panel 1 evenly diffuses the focused supplementary light to the periphery of the gap, avoiding "light spots" and "dark areas", and finally achieving a seamless brightness transition between the splicing gap and the main body of the display panel 1.

[0044] This invention addresses the core technical pain points in high-end display scenarios, breaking through the application limitations of traditional LED display modules in high-value-added orders, helping products to upgrade their grade, and enabling them to meet the customized needs of more high-end venues.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dynamic adjustment mechanism for an adaptive curved LED display module, characterized in that, include: Display panel (1) is used to display screen content. The side of the splicing of two adjacent display panels (1) is coated with light guide coating (101). The display driver module (2) is located on the back side of the display panel (1) and is used to drive and adjust the display panel (1). The side lamp module (3) is located on the back side of the display panel (1) and is electrically connected to the display driver module (2). The side lamp module (3) is equipped with a plurality of spotlight beads (301) for emitting parallel light outward. A reflector module (4) is fixed around the side lamp module (3) and a light groove (402) is provided. The inner wall of the light groove (402) is provided with a reflective slope (403) that is inclined toward the spotlight lamp bead (301). Among them, a lens mounting area (406) is formed between two adjacent reflective modules (4), and the lens mounting area (406) is aligned with the splicing position of two adjacent display panels (1); A cylindrical lens (5) is installed in the lens mounting area (406) of two adjacent reflective modules (4), and the convex curved surface faces the reflective slope (403) of the light groove (402).

2. The adaptive curved surface LED display module dynamic adjustment mechanism according to claim 1, characterized in that: The light guide coating (101) is made of polycarbonate material.

3. The adaptive curved surface LED display module dynamic adjustment mechanism according to claim 1, characterized in that: The display driving module (2) is provided with multiple sets of conductive contact points (201) around its perimeter. The side lamp module (3) has a set of contact grooves (302) on one side facing the display driving module (2). The contact grooves (302) are provided with conductive springs (303) that are pressed into contact with the conductive contact points (201).

4. The adaptive curved surface LED display module dynamic adjustment mechanism according to claim 1, characterized in that: The inner wall of the light groove (402) of the reflective module (4) is coated with a reflective coating (404), wherein the spotlight bulb (301) protrudes from the inner wall of the light groove (402) and its surface is not coated with a reflective coating (404).

5. The adaptive curved surface LED display module dynamic adjustment mechanism according to claim 1, characterized in that: The reflective module (4) is provided with an elastic card plate (401), and the display driving module (2) is provided with a card slot (202) on the outer ring side. The card slot (202) is provided with an outer opening slope (2021) and an inner card slot (2022). The elastic card plate (401) is inserted into the inner card slot (2022) along the outer opening slope (2021).

6. The adaptive curved surface LED display module dynamic adjustment mechanism according to claim 1, characterized in that: The cylindrical lens (5) has lens clips (501) on both sides, and the reflective module (4) has a lens slot (405) that is compatible with the lens clips (501).

7. The adaptive curved surface LED display module dynamic adjustment mechanism according to claim 1, characterized in that: The display driver module (2) is equipped with a power adjustment module for controlling the real-time power of the spotlight beads (301).

8. The adaptive curved surface LED display module dynamic adjustment mechanism according to claim 1, characterized in that: The focal line of the cylindrical lens (5) is directly opposite the splicing position of the two adjacent display panels (1).

9. The adaptive curved surface LED display module dynamic adjustment mechanism according to claim 1, characterized in that, The method for dynamically adjusting LED display modules is as follows: Section 1: The display driver module (2) collects the output power of the display panel (1) it is connected to in real time and shares the power data with the adjacent display driver module (2); Step 2: Based on the average output power of adjacent display panels (1), and combined with the brightness-power characteristic curve, analyze the supplementary brightness required for the splicing gap and the power reference value of the spotlight beads (301). Step 3: Determine the spotlight power according to whether the power of adjacent display panels (1) is the same for different scenes. If they are the same, the power of both sides is consistent. If they are different, a power complementary allocation strategy is adopted. Section 4, Display Driver Module (2) uses the power adjustment module (this module is not assigned an independent structural number in the document, so it is not marked) to adjust the power of the spotlight lamp beads (301) to emit parallel light; Step 5: The spotlight enters the light slot (402) of the reflector module (4), and after being reflected by the reflective inclined surface (403), it is transmitted to the cylindrical lens (5). Step 6: The cylindrical lens (5) focuses the light to the splicing position, and the light guide coating (101) diffuses the focused light evenly to achieve a seamless brightness transition between the gap and the main body.

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