CN203178514U - Light guide plate structure - Google Patents

Abstract

The utility model relates to a light guide plate structure, which is integrally formed and comprises a light guide layer, an optical layer and a reflecting layer; the optical layer is arranged on the first surface, and the reflecting layer is arranged on the second surface; the second surface of the light guide layer is provided with a plurality of light guide points, one side edge of the light guide layer is a light incident surface, and the opposite end surface of the side where the optical layer is combined with the first surface of the light guide layer is a light emergent surface; therefore, the light guide plate has the effects of light guiding, optical diffusion and light reflection through the structural arrangement of the light guide plate comprising the light guide layer, the optical layer and the reflecting layer, so that the purposes of simplifying the complex procedures of the manufacturing process and saving the time for production and manufacturing are achieved, and the manufacturing cost is reduced.

Description

Light guide plate structure

technical field

The utility model relates to a light guide plate structure, in particular to a light guide plate structure which integrates the functions of light guide, optical diffusion and light reflection.

Background technique

The light guide plate is the most critical component in the backlight module. Among them, the main function of the light guide plate is to guide the light direction, and it has excellent light transmission. When the point light source or line light source passes through the light guide plate, it can convert the point light source or line light source into a surface light source. Therefore, the light guide plate It is a carrier for the transmission and distribution of light; and through the structural design of the light guide plate, the outgoing angle and energy distribution of the traveling light can be further adjusted, so that the point light source or line light source passes through the light guide plate to form a uniformly luminous surface light source.

In addition, in order to improve the uniformity of the luminance of the surface light source, a reflection plate and a diffusion plate are respectively provided on the corresponding two surfaces of the light guide plate; wherein, the diffusion plate is used to improve the uniformity of the luminance of the surface light source, reflect The plate is used to prevent light from leaking from the bottom of the light guide plate, so as to increase the efficiency of light use.

However, considering factors such as the uniformity of luminance and light leakage of the above-mentioned surface light source, when forming a structure capable of forming the surface light source, it is necessary to assemble and install reflective films and Diffusion film, so in manufacturing and production, due to the need for multiple components to be assembled and combined afterwards, it is time-consuming and labor-intensive in manufacturing and assembling, and the entire assembly process must be carried out in a clean room so that the surface of each plate will not The dust will not affect the quality of the finished product, but it is also because of this that it is impossible to reduce the manufacturing cost and seriously affect the profit of the industry.

In addition, after the light guide plate is laminated with the diffusion film and the reflective film, only a frame is used to fix its four sides, and there is no fixing mechanism for the central area, so it is easy to have poor adhesion, resulting in some unexpected light rays. Scattering phenomenon, forming a dark area, resulting in poor lighting conditions with insufficient luminance and uneven light and shade.

Utility model content

The purpose of this utility model is to provide a light guide plate structure, the light guide plate combines light guide function, optical diffusion function and reflection function in one, which can reduce the complicated process of the manufacturing process, save manufacturing time, labor and avoid duplication of work , so as to reduce the cost of manufacturing, and can also eliminate the unevenness of light and shade, and provide the best lighting effect.

In order to achieve the above purpose, the utility model proposes a light guide plate structure, the light guide plate is integrally formed and includes:

A light guide layer, an optical layer, and a reflective layer; wherein, the light guide layer has a first surface and a second surface corresponding to the first surface, the optical layer is disposed on the first surface, and the reflective layer is disposed on the On the second surface; and the second surface of the light guide layer has a plurality of light guide points, and one side of the light guide layer is a light incident surface, and the first surface of the optical layer and the light guide layer The opposite end face of the combined face is the light-emitting face.

The above light guide plate structure, wherein the optical layer is a diffusion layer.

In the light guide plate structure described above, the material of the light guide layer is polymethylmethacrylate (PMMA).

In the light guide plate structure described above, the material of the optical layer is polycarbonate (Polycarbonate, PC).

In the above light guide plate structure, the side corresponding to the light incident surface on one side of the light guide layer is another light incident surface.

In the above-mentioned light guide plate structure, the arrangement density of the light guide points is uniform.

In the above-mentioned light guide plate structure, the arrangement density of the light guide points is arranged from sparse to dense from the direction close to the light incident surface to the direction relatively far away from the light incident surface.

The light guide plate structure above, wherein the diameters of the light guide points are the same size.

The above-mentioned light guide plate structure, wherein, the diameters of the light guide points gradually increase from the direction close to the light incident surface to the direction relatively away from the light incident surface.

The above-mentioned light guide plate structure, wherein, there are light guide particles in the light guide layer.

The light guide plate structure above, wherein the diffusion layer has diffusion particles.

The light guide plate structure above, wherein there are reflective particles in the reflective layer.

In the light guide plate structure described above, the reflective layer is made of polycarbonate (PC) or polyethylene terephthalate (PET).

The structure of the light guide plate as described above, wherein the light-emitting surface is provided with microstructures.

The advantages of the light guide plate structure of the present utility model are:

1. Because the light guide plate of the present invention includes a light guide layer, an optical layer and a reflective layer that are integrally formed and combined with each other, the light guide plate itself has the functions of light guide, optical diffusion and reflection light collection, and There is no need to carry out the procedure of assembling the reflecting film and the diffusing film, therefore, the complex process of the manufacturing process can be effectively reduced and the manufacturing time can be saved, and because the light guide plate of the present invention has a light guiding layer, a reflecting layer and a diffusing layer after molding , so there is no need to consider whether there will be dust between the layers when forming the light guide plate, thereby reducing the cost of manufacturing.

2. Because the light guide plate of the present invention includes a light guide layer, an optical layer, and a reflective layer that are laminated and combined in one piece, there is no need to perform the procedure of assembling the reflective film and the diffuser film. Therefore, there will be no such optical layer 1. There is poor adhesion between the reflective layer and the light guide layer, which can indeed avoid the dark area phenomenon caused by the unpredictable scattering of some light rays.

3. The plurality of light guide points set on the surface of the light guide layer can be further collected from the light incident surface to a direction relatively far away from the light incident surface, gradually increasing its arrangement density or/and gradually increasing its diameter Therefore, it can increase the luminance of the area away from the light incident surface, avoid uneven brightness and darkness, and provide the best indoor lighting effect.

Description of drawings

FIG. 1 is a perspective view of a preferred embodiment of the light guide plate structure of the present invention;

Fig. 2 is a front view of a preferred embodiment of the structure of the light guide plate of the present invention;

FIG. 3 is a front view of the second preferred embodiment of the structure of the light guide plate of the present invention.

Explanation of main component labels:

1 Light guide layer

11 first surface

12 second surface

13 light guide point

14 incident surface

15 light guide particles

2 optical layer

21 Diffusion layer

22 Diffusion Particles

23 light emitting surface

3 reflective layer

31 reflective particles

4 light source

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation of the present utility model is now described with reference to the accompanying drawings:

Please refer to FIG. 1 , which is a three-dimensional schematic view of the light guide plate of the present invention. The light guide plate of the present utility model is integrally formed and includes: a light guide layer 1, an optical layer 2 and a reflective layer 3; wherein:

The light guide layer 1 has a first surface 11 and a second surface 12 corresponding to the first surface 11, the second surface 12 of the light guide layer 1 has a plurality of light guide points 13 integrally formed, and at least One side of the light guide layer 1 is a light incident surface 14, or as shown in Figure 2, a second light incident surface 14 is further formed on the corresponding side of the one side, and the The light source 4 is arranged on the side 14, and the material of the light guide layer 1 is polymethylmethacrylate (PMMA); the light guide layer 1 contains light guide particles 15, which can improve the light guide effect of the light guide plate.

The optical layer 2 is integrally arranged on the first surface 11 of the light guide layer 1, the material of the optical layer 2 is polycarbonate (Polycarbonate, PC), and the optical layer 2 is a diffusion layer 21, in the diffusion layer 21 There are diffusing particles 22; in addition, the opposite end surface of the end surface of the optical layer 2 combined with the first surface 11 of the light guide layer 1 is a light-emitting surface 23, and the light-emitting surface 23 is a surface with a microstructure;

The reflective layer 3 is integrally arranged on the second surface 12 of the light guide layer 1, and has reflective particles 31 in the reflective layer 3. The material of the reflective layer 3 is selected from polycarbonate (PC) or polyethylene terephthalate Ester (PET) among them.

When the light source 4 is turned on, the light generated by it will enter the light incident surface 14 of the light guide layer 1, and the light entering the light guide layer 1 will travel in the light guide layer 1 at any angle and direction; The second surface 12 of the layer 1 has a light guide point 13, which makes the light diffuse or reflect due to the light guide point 13, thereby destroying the total reflection of the light and causing the light to be refracted, and the light that travels to the reflective layer 3, after reflection Under the action of layer 3, the direction of travel is changed, and the light is emitted out of the light guide plate.

Please also refer to FIG. 2 , the plurality of light guide points 13 provided on the second surface 12 of the light guide layer 1 can be uniformly arranged, or the arrangement density of the plurality of light guide points 13 can be arranged from close to the two light incident surfaces 14 toward each other. The direction away from the central area of the two light-incident surfaces 14 is arranged from sparse to dense; the diameters of the multiple light guide points 13 are the same size, or from close to the two light-incident surfaces 14 to relatively far away from the two light-incident surfaces 14 The direction of the central region gradually increases (see Figure 3).

Thereby, through the setting of arrangement density and diameter of the plurality of light guide points 13, the luminance of the overall central area of the light guide plate can be increased to avoid uneven brightness and darkness, so as to provide the best indoor lighting effect.

The above descriptions are only illustrative specific implementations of the present utility model, and are not intended to limit the scope of the present utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention shall fall within the protection scope of the present invention.

Claims (9)

1. a light conducting plate structure is characterized in that, this light guide plate is one of the forming and comprises an optical waveguide layer, an optical layers and a reflection horizon; Wherein, this optical waveguide layer has first surface and the second surface corresponding with this first surface, and this optical layers is located on the first surface, and this reflection horizon is located on the second surface; And have a plurality of leaded light points on the second surface of this optical waveguide layer, a wherein side of this optical waveguide layer is an incidence surface, and the opposing end surface of the side end face that this optical layers is combined with the first surface of this optical waveguide layer is exiting surface.

2. light conducting plate structure as claimed in claim 1 is characterized in that, this optical layers is diffusion layer.

3. light conducting plate structure as claimed in claim 1 is characterized in that, the material of this optical waveguide layer is polymethylmethacrylate.

4. light conducting plate structure as claimed in claim 1 is characterized in that, the material of this optical layers is polycarbonate.

5. light conducting plate structure as claimed in claim 1 is characterized in that, the arranging density of each described leaded light point, be evenly distributed or near this incidence surface toward relatively away from the direction of this incidence surface, be listed as by dredging to solid matter.

6. light conducting plate structure as claimed in claim 5 is characterized in that, the diameter of each described leaded light point is for identical size or by increasing gradually toward relative direction away from this incidence surface near this incidence surface.

7. light conducting plate structure as claimed in claim 1 is characterized in that, has the leaded light particle in this optical waveguide layer.

8. light conducting plate structure as claimed in claim 1 is characterized in that, this exiting surface is provided with microstructure.

9. light conducting plate structure as claimed in claim 1 is characterized in that, the material in this reflection horizon is polycarbonate or polyethylene terephthalate.

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