A multilayer light guide plate structure

CN224667990UActive Publication Date: 2026-08-21SHENZHEN GOMANY ELECTRONIC CO LTD
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Patent Information

Application Number
CN202521768589.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-20
Publication Date
2026-08-21
Estimated Expiration
2035-08-20

AI Technical Summary

Benefits of technology

[0012]与现有技术相比,本实用新型的有益效果是:通过采用多层导光结构的设置,包括反射层、导光层、连接层和填充层的组合,提高了光线的利用率和均匀性,反射层采用镀银板材料,能够高效反射向下散射的光线,减少光损失;导光层由2-3片亚克力板堆叠而成,优化了光线的折射和反射路径,确保光线均匀分布;连接层采用光学胶材料,增强了各层之间的光传导效率,减少界面光损耗;填充层采用棱镜结构膜和玻璃微珠的组合,进一步调控光线出射角度,提升照明亮度和均匀性,适用于多种照明场景,具有较高的实用性和经济性。

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Abstract

The utility model provides a kind of multilayer light guide plate structure, belong to optical lighting equipment technical field, including bottom shell, fixedly connected in the light transmission plate of bottom shell inner wall, set in the light transmission hole of light transmission plate surface, be placed in the groove of bottom shell inner wall, fixedly connected in the reflection plate of the groove inner wall, fixedly connected in the mounting plate of the mounting plate side wall, and set in the light guide assembly of the mounting plate surface.The utility model is set by adopting multilayer light guide structure, including the combination of reflection layer, light guide layer, connecting layer and filling layer, improve the utilization rate and uniformity of light, reflection layer uses silver-plated plate material, can efficiently reflect downward scattered light, reduce light loss;Light guide layer is stacked by 2-3 pieces of acrylic plate, optimizes the refraction and reflection path of light, ensures uniform distribution of light;Connecting layer uses optical adhesive material, enhances the light transmission efficiency between each layer, reduces interface light loss.
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Description

Technical Field

[0001] This utility model belongs to the field of optical lighting equipment technology, specifically relating to a multi-layer light guide plate structure. Background Technology

[0002] As an important optical component, the light guide plate can be traced back to the 1960s, initially used in the backlight modules of liquid crystal displays (LCDs) to improve display effects by converting line light sources into uniform surface light sources. With the advancement of materials science and optical design technology, light guide plates have evolved from single-layer structures to multi-layer composite structures. The materials have also evolved from early polycarbonate to the widely used polymethyl methacrylate (PMMA) of today, with continuous optimization in surface microstructure and nano-coatings. Modern light guide plates are now widely used in LED lighting, LCDs, advertising light boxes, automotive dashboards, medical equipment backlighting, smart home lighting, and many other fields, playing a particularly crucial role in ultra-thin display devices and energy-saving lighting systems.

[0003] The second paragraph discusses the problems with existing technology and how to solve them. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layer light guide plate structure, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A multi-layer light guide plate structure, comprising, The system comprises a base shell, a light-transmitting plate fixedly connected to the inner wall of the base shell, a light-transmitting hole disposed on the surface of the light-transmitting plate, a placement groove disposed on the inner wall of the base shell, a reflector fixedly connected to the inner wall of the placement groove, a mounting plate fixedly connected to the side wall of the mounting plate, and a light guide assembly disposed on the surface of the mounting plate.

[0006] In a preferred embodiment of this utility model, the light guide assembly includes a reflective layer fixedly connected to the surface of the reflector plate, and a light guide layer fixedly connected to the surface of the reflective layer.

[0007] As a preferred embodiment of the present invention, the light guide assembly further includes a connecting layer fixedly connected to the surface of the light guide layer, and a filling layer fixedly connected to the surface of the connecting layer.

[0008] In a preferred embodiment of this utility model, the reflective layer is made of silver-plated plate material and is rectangular in shape.

[0009] In a preferred embodiment of this utility model, the light guide layer is made of acrylic sheet material, the thickness of the light guide layer is set to 1-3cm, and the light guide layer is made of 2-3 acrylic sheets stacked together.

[0010] In a preferred embodiment of this utility model, the connecting layer is made of optical adhesive material, and the thickness of the connecting layer is set to 1-2 mm.

[0011] In a preferred embodiment of this invention, the filling layer is made of a prism structure membrane material, and the material of the filling layer is filled with glass microspheres.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: By adopting a multi-layer light guide structure, including a combination of a reflective layer, a light guide layer, a connecting layer, and a filling layer, the utilization rate and uniformity of light are improved. The reflective layer uses silver-plated plate material, which can efficiently reflect downwardly scattered light and reduce light loss. The light guide layer is composed of 2-3 stacked acrylic plates, which optimizes the refraction and reflection path of light and ensures uniform light distribution. The connecting layer uses optical adhesive material, which enhances the light transmission efficiency between layers and reduces interface light loss. The filling layer uses a combination of prism structure film and glass microspheres to further control the light emission angle, improve the lighting brightness and uniformity, and is suitable for various lighting scenarios, with high practicality and economy. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the connection between the bottom shell and the placement groove of this utility model; Figure 3 This is a schematic diagram showing the connection between the reflector and the mounting plate of this utility model; Figure 4 This is a schematic diagram of the overall light guide component of this utility model.

[0014] In the diagram: 101, bottom shell; 102, light-transmitting plate; 103, light-transmitting hole; 104, placement slot; 105, reflector; 106, mounting plate; 107, light guide assembly; 107a, reflective layer; 107b, light guide layer; 107c, connecting layer; 107d, filling layer. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0018] Reference Figures 1-4 This is an embodiment of the present invention, which provides a multilayer light guide plate structure, including: The system comprises a base shell 101, a light-transmitting plate 102 fixedly connected to the inner wall of the base shell 101, a light-transmitting hole 103 disposed on the surface of the light-transmitting plate 102, a placement groove 104 disposed on the inner wall of the base shell 101, a reflector 105 fixedly connected to the inner wall of the placement groove 104, a mounting plate 106 fixedly connected to the side wall of the mounting plate 106, and a light guide assembly 107 disposed on the surface of the mounting plate 106.

[0019] Specifically, the light guide assembly 107 includes a reflective layer 107a fixedly connected to the surface of the reflector 105, and a light guide layer 107b fixedly connected to the surface of the reflective layer 107a. The light guide assembly 107 also includes a connecting layer 107c fixedly connected to the surface of the light guide layer 107b, and a filling layer 107d fixedly connected to the surface of the connecting layer 107c.

[0020] Furthermore, the light guide layer 107b is made of 2-3 stacked acrylic sheets to optimize the light path and ensure the light guiding efficiency of the light guide plate.

[0021] Preferably, the reflective layer 107a is made of silver-plated plate material and is rectangular in shape; the light guide layer 107b is made of acrylic plate material and has a thickness of 1-3 cm; the light guide layer 107b is made of 2-3 stacked acrylic plates; the connecting layer 107c is made of optical adhesive material and has a thickness of 1-2 mm; and the filling layer 107d is made of prism structure film material and is filled with glass microspheres.

[0022] It should be noted that the reflective layer 107a facilitates the reflection of downward-leaking light back to the light guide plate, thereby improving light utilization.

[0023] In use, the light emitted by the light source enters the light guide layer 107b from the side of the light guide component 107. Since the light guide layer 107b is made of 2-3 acrylic plates stacked together, the light undergoes multiple refractions and reflections between the acrylic plates to form a uniform surface light source. When the light reaches the bottom of the light guide layer 107b, the reflective layer 107a reflects the downward-leaking light back to the light guide layer 107b through the high reflectivity of the silver plate, effectively improving the light utilization rate. The light continues to propagate upward to the connecting layer 107c. The optical adhesive material ensures the continuity of light transmission between layers and reduces interface loss. Finally, when the light passes through the filling layer 107d, the prism structure film and the glass microspheres filled inside perform secondary diffusion and directional control of the light, so that the light is uniformly emitted from the light transmission hole 103 of the light transmission plate 102, achieving a high-efficiency and uniform lighting effect. The bottom shell 101 and the mounting plate 106 provide a stable support structure for each optical element, while the reflective plate 105 helps to enhance the reflection efficiency of the surrounding light, thereby optimizing the overall optical performance of the multi-layer light guide plate.

[0024] In summary, the light guide component 107 achieves efficient and uniform light transmission and output. The silver-plated material of the reflective layer 107a enhances light reflectivity and effectively reduces light energy loss; the multi-layer acrylic stacked light guide layer 107b optimizes the light propagation path, ensuring uniform light distribution; the optical adhesive bonding layer 107c effectively reduces interlayer interface loss, ensuring the continuity of light transmission; and the filling layer 107d, combining a prism structure film and glass microspheres, precisely controls the light emission angle, significantly improving illumination brightness and uniformity. The synergistic effect of each component is evident, not only improving light energy utilization efficiency but also enhancing product stability and durability. It can be widely applied to various scenarios requiring uniform lighting, demonstrating significant technical advantages and practical value.

[0025] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0026] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0027] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0028] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-layer light guide plate structure, characterized in that: include, The base shell (101), the light-transmitting plate (102) fixedly connected to the inner wall of the base shell (101), the light-transmitting hole (103) provided on the surface of the light-transmitting plate (102), the placement groove (104) provided on the inner wall of the base shell (101), the reflector plate (105) fixedly connected to the inner wall of the placement groove (104), the mounting plate (106) fixedly connected to the side wall of the mounting plate (106), and the light guide assembly (107) provided on the surface of the mounting plate (106).

2. The multilayer light guide plate structure according to claim 1, characterized in that: The light guide assembly (107) includes a reflective layer (107a) fixedly connected to the surface of the reflective plate (105), and a light guide layer (107b) fixedly connected to the surface of the reflective layer (107a).

3. The multilayer light guide plate structure according to claim 2, characterized in that: The light guide assembly (107) further includes a connecting layer (107c) fixedly connected to the surface of the light guide layer (107b), and a filling layer (107d) fixedly connected to the surface of the connecting layer (107c).

4. The multilayer light guide plate structure according to claim 3, characterized in that: The reflective layer (107a) is made of silver-plated plate material and is rectangular in shape.

5. The multilayer light guide plate structure according to claim 4, characterized in that: The light guide layer (107b) is made of acrylic sheet material, and the thickness of the light guide layer (107b) is set to 1-3cm.

6. The multilayer light guide plate structure according to claim 5, characterized in that: The connecting layer (107c) is made of optical adhesive material, and the thickness of the connecting layer (107c) is set to 1-2 mm.

7. The multilayer light guide plate structure according to claim 6, characterized in that: The filling layer (107d) is made of a prism structure membrane material, and the material of the filling layer (107d) is filled with glass microspheres.