Light guide plate with better reflection effect

By setting up corrosion-resistant layers, diffusion layers, quantum layers, light-enhancing layers and reflective layers on the light guide plate, and designing specific arrangements of hemispherical dots on the reflective layer, the visual interference pattern problem in the improvement of the reflection performance of the light guide plate is solved, and better reflection effect and uniformity are achieved.

CN223259909UActive Publication Date: 2025-08-22DONGGUAN YINGFENG PHOTOELECTRIC MATERIAL
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Patent Information

Application Number
CN202422574148.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-23
Publication Date
2025-08-22
Estimated Expiration
2034-10-23

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    Figure CN223259909U_ABST
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Abstract

The utility model discloses a light guide plate with a better reflection effect. The light guide plate comprises a body, a corrosion-resistant layer, a diffusion layer, a quantum layer, a light enhancement layer and a reflection layer, the corrosion-resistant layer is stacked on the upper surface of the body, and the upper surface of the corrosion-resistant layer is a light-emitting surface; the diffusion layer is stacked on the lower surface of the body; the quantum layer is stacked on the lower surface of the diffusion layer; the intensifying layer is stacked on the lower surface of the quantum layer; the reflecting layer is stacked on the lower surface of the intensifying layer, the lower surface of the reflecting layer is a reflecting surface, and a plurality of groups of lattice points are arranged on the reflecting surface. A plurality of groups of net points are arranged on the reflecting surface and are distributed at intervals from sparse to dense along the Y-axis direction, and each group of net points consists of a plurality of net points which are irregularly distributed along the X-axis direction, so that interference lines are not generated when the reflecting surface reflects light, and each net point is matched with a hemispherical structure, so that the light reflecting efficiency is improved. The diameters and the depths of the lattice points are the same, and the lattice points of the hemispherical structure increase the reflection area, so that the uniformity of a picture is better.
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Description

Technical Field

[0001] The utility model relates to the field of light guide plates, in particular to a light guide plate with better reflection effect. Background Art

[0002] With the advancement of technology, lighting systems are becoming increasingly sophisticated and widely used. Light guide plates (LGPs) are an indispensable component of these systems. LGPs are made from optical-grade acrylic / PC sheets. Light guide points are printed on the underside of the optical-grade acrylic sheet using laser engraving, V-shaped cross-grid engraving, and UV screen printing, using high-tech materials with extremely high refractive index and no light absorption. The optical-grade acrylic sheet absorbs the light emitted from the lamp and its retention on the surface. When light strikes each light guide point, the reflected light diffuses in all directions, breaking the reflective conditions and exiting through the front of the LGP.

[0003] Existing light guide plates generally consist of a diffuser layer, a main layer, and a reflective film. This structure is relatively simple. To improve the reflective performance of the light guide plate, some manufacturers use a matrix of dots arranged regularly on the reflective surface. However, this structure can create visual interference patterns, resulting in a poor user experience. Therefore, improvements to existing light guide plates are necessary. Utility Model Content

[0004] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a light guide plate with better reflective effect, which can effectively solve the problem of the existing light guide plate with regularly arranged matrix dots, which has the visual problem of generating interference patterns and the poor user experience.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A light guide plate with better reflective effect includes a body, a corrosion-resistant layer, a diffusion layer, a quantum layer, a light-enhancing layer and a reflective layer; the corrosion-resistant layer is stacked on the upper surface of the body, and the upper surface of the corrosion-resistant layer is a light-emitting surface; the diffusion layer is stacked on the lower surface of the body; the quantum layer is stacked on the lower surface of the diffusion layer, and the quantum material in the quantum layer has excellent absorption capacity, which can greatly improve the sensitivity of the light guide plate and achieve energy saving; the light-enhancing layer is stacked on the lower surface of the quantum layer; the reflective layer is stacked on the lower surface of the light-enhancing layer, and the lower surface of the reflective layer is a reflective surface, and multiple groups of network dots are provided on the reflective surface, and the multiple groups of network dots are arranged from sparse to dense along the Y-axis direction, and each group of network dots is composed of multiple network dots irregularly arranged along the X-axis direction, and each network dot is a hemispherical structure, and the diameter and depth of each network dot are the same.

[0007] As a preferred solution, the body is made of PC material.

[0008] As a preferred solution, the corrosion-resistant layer is made of nano-silicon carbide.

[0009] As a preferred solution, the diffusion layer has multiple diffusion particles that can improve the diffusion effect. The multiple diffusion particles that can improve the diffusion effect are evenly arranged in the diffusion layer, so that the diffusion layer can effectively convert point light sources or line light sources into soft and uniform surface light sources.

[0010] As a preferred solution, the diffusion layer is a PS diffusion layer.

[0011] As a preferred solution, the thickness of the brightness enhancement layer is 150-170 μm.

[0012] As a preferred solution, the diameter of each dot is 60 μm, and the depth of each dot is 12 μm.

[0013] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0014] By providing multiple groups of dots on the reflective surface, the multiple groups of dots are arranged from sparse to dense along the Y-axis direction, and each group of dots is composed of multiple dots irregularly arranged along the X-axis direction, so that no interference patterns will be generated when the reflective surface reflects light. In addition, each dot has a hemispherical structure, and the diameter and depth of each dot are the same. The hemispherical structure of the dots increases the reflection area, making the picture more uniform.

[0015] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of a preferred embodiment of the present utility model;

[0017] Figure 2 It is a top view of a preferred embodiment of the present utility model.

[0018] Description of the accompanying drawings:

[0019] 10. Main body 20. Corrosion-resistant layer

[0020] 21. Light emitting surface 30. Diffusion layer

[0021] 40, quantum layer 50, light enhancement layer

[0022] 60. Reflective layer 61. Reflective surface

[0023] 62. Outlets. DETAILED DESCRIPTION

[0024] Please refer to Figures 1 to 2 As shown, it shows the specific structure of a preferred embodiment of the present invention, including a body 10, a corrosion-resistant layer 20, a diffusion layer 30, a quantum layer 40, a light-enhancing layer 50 and a reflective layer 60.

[0025] The main body 10 is made of PC material.

[0026] The corrosion-resistant layer 20 is stacked on the upper surface of the body 10 , and the upper surface of the corrosion-resistant layer 20 is a light-emitting surface 21 . In this embodiment, the corrosion-resistant layer 20 is made of nano-silicon carbide.

[0027] The diffusion layer 30 is stacked on the lower surface of the main body 10; in this embodiment, the diffusion layer 30 has a plurality of diffusion particles 31 that can improve the diffusion effect. The plurality of diffusion particles 31 that can improve the diffusion effect are evenly arranged in the diffusion layer 30, so that the diffusion layer 30 can effectively convert a point light source or a line light source into a soft and uniform surface light source; and the diffusion layer 30 is a PS diffusion layer.

[0028] The quantum layer 40 is stacked on the lower surface of the diffusion layer 30 . The quantum material in the quantum layer 40 has excellent absorption capability, which can greatly improve the sensitivity of the light guide plate and achieve energy saving.

[0029] The light enhancement layer 50 is stacked on the lower surface of the quantum dot layer 40 . In this embodiment, the thickness of the light enhancement layer 50 is 150-170 μm.

[0030] The reflective layer 60 is stacked on the lower surface of the light-enhancing layer 50. The lower surface of the reflective layer 60 is a reflective surface 61. A plurality of groups of dots 62 are provided on the reflective surface 61. The plurality of groups of dots 62 are arranged from sparse to dense along the Y-axis direction. Each group of dots 62 is composed of a plurality of dots 62 irregularly arranged along the X-axis direction. Each dot 62 is a hemispherical structure, and the diameter and depth of each dot 62 are the same. In this embodiment, the diameter of each dot 62 is 60 μm, and the depth of each dot 62 is 12 μm.

[0031] The working principle of this embodiment is described in detail as follows:

[0032] When in use, the light source (not shown in the figure) is located on the left or right side of the light guide plate, and the light generated by the light source enters from the light incident surface on the left or right side of the light guide plate. The light enters the light guide plate and then emits upward under the action of the reflective layer 60, passing through the light enhancement layer 50, the quantum layer 40, the diffusion layer 30 and the corrosion-resistant layer 20 in turn, and is evenly emitted outward from the light output surface 21 under their coordinated action.

[0033] The design focus of the utility model is that: by providing multiple groups of dots on the reflective surface, the multiple groups of dots are arranged from sparse to dense along the Y-axis direction, and each group of dots is composed of multiple dots irregularly arranged along the X-axis direction, so that no interference patterns are generated when the reflective surface reflects light. In addition, each dot has a hemispherical structure, and the diameter and depth of each dot are the same. The hemispherical structure of the dots increases the reflection area, making the picture more uniform.

[0034] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A light guide plate with better reflection effect, characterized by: The invention comprises a main body, a corrosion-resistant layer, a diffusion layer, a quantum layer, a light-enhancing layer and a reflective layer; the corrosion-resistant layer is stacked on the upper surface of the main body, and the upper surface of the corrosion-resistant layer is a light-emitting surface; the diffusion layer is stacked on the lower surface of the main body; the quantum layer is stacked on the lower surface of the diffusion layer; the light-enhancing layer is stacked on the lower surface of the quantum layer; the reflective layer is stacked on the lower surface of the light-enhancing layer, and the lower surface of the reflective layer is a light-reflecting surface, and a plurality of groups of dots are arranged on the light-reflecting surface, and the plurality of groups of dots are arranged from sparse to dense along the Y-axis direction, and each group of dots is composed of a plurality of dots irregularly arranged along the X-axis direction, and each dot is a hemispherical structure, and the diameter and depth of each dot are the same.

2. The light guide plate with better reflective effect according to claim 1, characterized in that: The body is made of PC material.

3. The light guide plate with better reflective effect according to claim 1, characterized in that: The corrosion-resistant layer is made of nano-silicon carbide.

4. The light guide plate with improved reflection effect according to claim 1, characterized in that: The diffusion layer has a plurality of diffusion particles capable of improving diffusion effect, and the plurality of diffusion particles capable of improving diffusion effect are evenly arranged in the diffusion layer.

5. The light guide plate with improved reflection effect according to claim 1, characterized in that: The diffusion layer is a PS diffusion layer.

6. The light guide plate with improved reflection effect according to claim 1, characterized in that: The thickness of the brightness enhancement layer is 150-170 μm.

7. The light guide plate with improved reflective effect according to claim 1, characterized in that: The diameter of each dot is 60 μm, and the depth of each dot is 12 μm.