Low light loss art screen module

Abstract

The utility model discloses an artistic screen module of low light loss relates to LED screen technical field, including LED module, and LED module includes bottom plate, and the top of bottom plate is provided with a plurality of LED lamp pearl, and the top of bottom plate is installed with face guard, and the top of face guard is provided with decorative pattern layer, this artistic screen module of low light loss makes it completely be located in the main light path of LED lamp pearl outside, realizes the physical separation of light path and pattern layer. LED display light does not need to penetrate any pattern layer to reduce the luminance loss problem caused by pattern layer shielding, absorption from the structure principle, makes the luminance loss rate be reduced compared with prior art, secondly, the combination of white reflection layer and color pattern layer ensures that the white reflection layer can effectively block the bottom stray light and provide high reflectivity base when the screen is off static display, makes the color of color pattern layer present more real, full and bright, improves static artistic visual effect.

Description

Technical Field

[0001] This utility model relates to the field of LED screen technology, specifically to a low-light-loss art screen module. Background Technology

[0002] LED displays, as a modern information display medium, have been widely used in various fields such as commercial advertising, information dissemination, stage backdrops, and public displays. Their core display unit is the LED module, which typically includes a PCB baseboard and a large number of LED chips arranged in a matrix on it. To improve the reliability of the display and cope with complex operating environments, the industry commonly adopts GOB (Glass On Board) encapsulation technology. This technology involves pouring a layer of transparent epoxy resin or silicone protective adhesive onto the surface of the LED module. This adhesive layer fills the spaces between and above the LED chips, completely encapsulating the chips, solder joints, and circuitry, thus forming a solid protective barrier. GOB technology significantly improves the module's moisture resistance, dust resistance, impact resistance, and corrosion resistance, effectively extending the lifespan of the display and improving the overall consistency of the displayed image.

[0003] With the diversification of market demands, an "art screen" product that combines dynamic display with static artistic decoration has emerged. When the display screen is not in use, its surface can display static patterns (such as oil paintings, ink paintings, company logos, or simulated stone textures) that blend seamlessly with the surrounding environment, thus breaking away from the monotony and jarring effect of a traditional "black screen" display.

[0004] Currently, the mainstream technical solutions for achieving this artistic effect are mainly derived from the aforementioned GOB process, specifically including the following two types. The first is the "GOB + 3D inkjet printing" solution, which involves directly applying ink to the surface of the already packaged GOB module adhesive layer to create artistic patterns. Its inherent drawback is that the decorative pattern layer is directly covered in the light path of the LED beads. When the LED beads emit light, the light must penetrate this pattern ink layer to be seen by the viewer. The ink layer inevitably absorbs, scatters, and blocks the light. This structure results in extremely severe loss of the final output brightness of the display screen, generally exceeding 80%.

[0005] The second approach is the "GOB + lamination" solution. This can be seen as a variation of the first approach, the difference being that instead of direct printing, a pre-designed transparent film or acrylic sheet is adhered to the surface of the GOB adhesive layer. While this approach improves pattern consistency to some extent, its fundamental structural flaw is the same as the first approach: the patterned film is still located directly in front of the LED beads, within the main light path, thus still causing significant brightness attenuation. Furthermore, the adhesion between the film and the underlying GOB adhesive may suffer from issues such as bubbles and delamination, affecting the visual effect, and the film itself is also susceptible to aging and yellowing.

[0006] In summary, existing art screen solutions, whether "GOB + 3D printing" or "GOB + lamination", result in high brightness loss of the LED module due to the light blocking and absorption by the decorative layer. Utility Model Content

[0007] The purpose of this invention is to provide a low-light-loss art screen module to solve the problem of high brightness loss in LED modules caused by the blocking and absorption of light by the decorative pattern layer of the art screen in the prior art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a low-light-loss art screen module, comprising an LED module, the LED module comprising a base plate, a plurality of LED beads disposed on the top of the base plate, a mask mounted on the top of the base plate, a decorative pattern layer disposed on the top of the mask, the decorative pattern layer comprising a white reflective layer disposed on the top of the mask, and a colored pattern layer disposed on the top of the white reflective layer.

[0009] Furthermore, a mounting shell is installed on the outer surface of the mask, and the bottom of the mounting shell contacts the top of the base plate.

[0010] Furthermore, the mounting shell and the base plate are detachably connected by clips or screws.

[0011] Furthermore, the top of the base plate is provided with a mounting groove, and the inside of the mounting shell is provided with a connecting ring, which is inserted into the inner surface of the mounting groove.

[0012] Furthermore, a positioning post is installed inside the connecting ring, and a positioning groove is opened at the top of the mounting groove, with the positioning post engaging with the positioning groove.

[0013] Compared with existing technologies, the low-light-loss art screen module provided by this utility model achieves physical separation of the light path and the pattern layer by placing the decorative pattern layer on top of the mask, completely outside the main light-emitting path of the LED beads. The LED display light does not need to penetrate any pattern layer, thus structurally reducing the brightness loss caused by pattern layer blocking and absorption, resulting in a lower brightness loss rate compared to existing technologies. Furthermore, the combination of the white reflective layer and the colored pattern layer ensures that when the screen is off and statically displayed, the white reflective layer effectively blocks stray light from the underlying layer and provides a high-reflectivity substrate, making the colors of the colored pattern layer more realistic, saturated, and vibrant, thus improving the static artistic visual effect.

[0014] The mounting shell is limited by the insertion and engagement of the connecting ring and the mounting groove, which effectively prevents it from shifting or sliding relative to the base plate. The engagement of the positioning post and the positioning groove realizes the circumferential positioning of the mounting shell, reducing the risk of deviation between the mask and the LED beads due to slight movement of the components, and ensuring the accuracy of the relative position of the optical components. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 A first-view structural schematic diagram provided for an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the second-view structure provided for an embodiment of the present utility model;

[0018] Figure 3 A schematic diagram of the separation structure provided for an embodiment of this utility model;

[0019] Figure 4 A third-view structural schematic diagram provided for an embodiment of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. LED module; 11. Base plate; 12. LED beads; 2. Face mask; 3. Mounting slot; 4. Mounting shell; 5. Positioning slot; 6. Positioning post; 7. Decorative pattern layer; 71. White reflective layer; 72. Colored pattern layer; 8. Connecting ring. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] As attached Figure 1 To be continued Figure 4 As shown:

[0024] Example 1:

[0025] This utility model provides a low light loss art screen module, including an LED module 1. The LED module 1 includes a base plate 11, a plurality of LED beads 12 are disposed on the top of the base plate 11, and a mask 2 is installed on the top of the base plate 11. GOB protective adhesive is used to fill the spaces between and above the LED beads 12, and the mask 2 and the LED module 1 are encapsulated as one unit.

[0026] The top of the mask 2 is provided with a decorative pattern layer 7, which includes a white reflective layer 71 on the top of the mask 2 and a colored pattern layer 72 on the top of the white reflective layer 71. When the decorative pattern layer 7 is printed, the printing adhesive used is UV adhesive, and it is cured by irradiation with 395nm wavelength ultraviolet light, which can achieve instant curing of ink, improve production efficiency, and ensure the uniformity and stability of the pattern layer, providing a high-quality substrate for subsequent GOB packaging processes.

[0027] In existing technologies, to achieve artistic decorative effects on LED displays in a static state, two common solutions are "GOB + 3D printing" or "GOB + lamination". However, these solutions have fundamental structural flaws. In the "GOB + 3D printing" solution, the decorative pattern layer is directly sprayed onto the GOB protective adhesive covering the surface of the LED beads 12; while in the "GOB + lamination" solution, the patterned film material is also attached to the surface of the GOB protective adhesive. Both structures result in the decorative layer being directly located in the light emission path of the LED beads 12, causing severe obstruction, absorption, and scattering of the emitted light, with brightness losses exceeding 80%.

[0028] This application uses the face mask 2 as an independent pattern carrier, and creates a decorative pattern layer 7 on its top side, i.e., the side facing away from the LED beads 12. The decorative pattern layer 7 consists of a white reflective layer 71 that is first sprayed and a colored pattern layer 72 that is subsequently covered.

[0029] When the LED bead 12 is powered on and emits light, the light first penetrates upward through the highly transparent GOB protective adhesive, and then passes through the equally highly transparent mask 2 before exiting. In the entire light path, the decorative pattern layer 7 is located at the end of the light path propagation direction, thus the decorative pattern layer 7 does not obstruct the light emitted by the LED bead 12 itself, thereby reducing the brightness loss of the LED module 1. The white reflective layer 71 directly covers the surface of the mask 2, and its main function is to provide an opaque, highly reflective white base. It effectively blocks stray light passing through from below the mask 2, ensuring that the colors of the color pattern layer 72 can be presented realistically and saturatedly when the screen is statically displayed and off, without interference from the underlying structure. The color pattern layer 72 serves a color rendering function; by creating the color pattern layer 72 on the white reflective layer 71 base, a more vibrant static pattern effect can be obtained.

[0030] This application achieves physical separation of the light path and the pattern layer by placing the decorative pattern layer 7 on top of the mask 2, completely outside the main light path of the LED beads 12. The LED display light does not need to penetrate any pattern layer, thus structurally reducing the brightness loss caused by pattern layer blocking and absorption, resulting in a lower brightness loss rate compared to existing technologies. Furthermore, the combination of the white reflective layer 71 and the colored pattern layer 72 ensures that when the screen is statically displayed with the screen off, the white reflective layer 71 effectively blocks stray light from the underlying layer and provides a high-reflectivity substrate, making the colors of the colored pattern layer 72 more realistic, saturated, and vibrant, thus improving the static artistic visual effect.

[0031] In one embodiment of the present invention, a mounting shell 4 is installed on the outer surface of the mask 2, and the bottom of the mounting shell 4 contacts the top of the base plate 11.

[0032] The mounting shell 4 and the base plate 11 are detachably connected by clips or screws.

[0033] Specifically, the mounting housing 4 acts as a support and positioning frame, positioning the faceplate 2 above the base plate 11 of the LED module 1. This ensures a constant and optimal distance between the faceplate 2 and the LED beads 12 below, preventing interference with the light path caused by deformation due to direct installation pressure or temperature changes. The mounting housing 4 and the base plate 11 are connected by detachable clips or screws, allowing for easy opening for internal cleaning, replacement, or repair when needed, thus improving the product's maintainability and lifespan.

[0034] In one embodiment of the present invention, a mounting groove 3 is provided on the top of the base plate 11, and a connecting ring 8 is provided inside the mounting shell 4, which is inserted into the inner surface of the mounting groove 3.

[0035] The connecting ring 8 has a positioning post 6 installed inside, and the top of the mounting groove 3 has a positioning groove 5, which engages with the positioning post 6 and the positioning groove 5.

[0036] Specifically, the insertion and engagement of the connecting ring 8 and the mounting groove 3 limit the mounting shell 4, effectively preventing it from shifting or sliding relative to the base plate 11. The engagement of the positioning post 6 and the positioning groove 5 achieves circumferential positioning of the mounting shell 4, reducing the risk that the relative position of the mask 2 and the LED lamp bead 12 may deviate due to the slight movement of the components of the mounting shell 4, and ensuring the accuracy of the relative position of the optical components.

[0037] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A low-light-loss art screen module, comprising an LED module (1), wherein the LED module (1) includes a base plate (11), and a plurality of LED beads (12) are disposed on the top of the base plate (11), characterized in that, A face mask (2) is installed on the top of the base plate (11). A decorative pattern layer (7) is provided on the top of the face mask (2). The decorative pattern layer (7) includes a white reflective layer (71) provided on the top of the face mask (2). A colored pattern layer (72) is provided on the top of the white reflective layer (71).

2. The low-light-loss art screen module according to claim 1, characterized in that, The mask (2) has an mounting shell (4) installed on its outer surface, and the bottom of the mounting shell (4) is in contact with the top of the base plate (11).

3. The low-light-loss art screen module according to claim 2, characterized in that, The mounting shell (4) and the base plate (11) are detachably connected by clips or screws.

4. The low-light-loss art screen module according to claim 3, characterized in that, The bottom plate (11) has an installation groove (3) on its top, and the mounting shell (4) has a connecting ring (8) inside, which is inserted into the inner surface of the installation groove (3).

5. A low-light-loss art screen module according to claim 4, characterized in that, The connecting ring (8) has a positioning post (6) installed inside, and the top of the mounting groove (3) has a positioning groove (5) which engages with the positioning post (6).

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