CN216901016U

CN216901016U - Backlight uniform thin light guide plate

Info

Publication number: CN216901016U
Application number: CN202220498066.8U
Authority: CN
Inventors: 谭建国; 王艳清
Original assignee: Shenzhen Hongzhuo Electronics Co ltd
Current assignee: Shenzhen Hongzhuo Electronics Co ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-07-05
Anticipated expiration: 2032-03-09

Abstract

The application relates to the technical field of light guide plates, and discloses a thin light guide plate of homogeneity in a poor light, including base plate and light source, the upper and lower both sides of base plate are formed with play plain noodles and plane of reflection respectively, the avris of base plate is formed with into plain noodles, the upside coating that the base plate corresponds the play plain noodles has one deck transparent adhesive tape, transparent adhesive tape's upside is provided with microstructure site structural layer, the base plate corresponds plane of reflection department and etches there are a plurality of V type reflection grooves, transparent adhesive tape is close to one side of light source and establishes to the bulge, be provided with the collecting film between light source and the base plate. The application effectively improves the backlight uniformity, can enlarge the light incidence area of the whole light guide plate on one side, can better satisfy the use of the thinned light guide plate, and has good applicability.

Description

Backlight uniform thin light guide plate

Technical Field

The application relates to the technical field of light guide plates, in particular to a backlight uniform thin light guide plate.

Background

The backlight module is one of the key components of the liquid crystal display panel. The function is to provide sufficient brightness and uniformly distributed light source to make it able to normally display image, and the light guide plate is an important component in the backlight module.

The light guide plate is made of optical acrylic/PC board, then high-tech material with extremely high refractive index and no light absorption is used, light guide points are printed on the bottom surface of the optical acrylic board by laser engraving, V-shaped cross grid engraving and UV screen printing technology, and the light guide plate is used for guiding the scattering direction of light, so that the brightness of the panel is improved, and the uniformity of the brightness of the panel is ensured.

Along with the development of the light guide plate toward the thinning technology, the light incident surface of the light guide plate is greatly reduced, the irradiation of the LED lamp group cannot completely enter the light guide plate, the light source waste is caused, and the use of the actual light guide plate cannot be well met.

SUMMERY OF THE UTILITY MODEL

The utility model provides a purpose is in order to solve among the prior art income plain noodles of light guide plate and reduce greatly, in the shining of LED banks can not get into the light guide plate completely, has caused the light source extravagant, the problem of the use of satisfying actual light guide plate that can not be fine, and the slim light guide plate of homogeneity in a poor light that proposes.

In order to achieve the purpose, the following technical scheme is adopted in the application:

the utility model provides a uniformity slimming light guide plate is shaded, includes base plate and light source, the upper and lower both sides of base plate are formed with play plain noodles and plane of reflection respectively, the avris of base plate is formed with into plain noodles, the upside coating that the base plate corresponds the play plain noodles has one deck transparent adhesive layer, the upside of transparent adhesive layer is provided with micro-structure site structural layer, the base plate corresponds plane of reflection department and etches there are a plurality of V type reflection grooves, the one side that the transparent adhesive layer is close to the light source is established to the bulge, be provided with the collecting film between light source and the base plate.

Preferably, the transparent adhesive layer is a UV curable adhesive.

Preferably, a plurality of light-gathering inclined planes are arranged on the convex part.

Preferably, the outer side of the transparent adhesive layer corresponding to the protruding portion and the lower end of the substrate corresponding to the reflecting surface are fixedly connected with the same U-shaped fixing sheet, and the light source is fixedly installed in the U-shaped fixing sheet.

Preferably, the light-gathering film comprises a transparent base film, and the pyramid diffusion layer is arranged on one side of the transparent base film, which is close to the substrate.

Preferably, the microstructure dot structure layer is fixed on the transparent adhesive layer through screen printing.

Compared with the prior art, the application provides a thin light guide plate of homogeneity in a poor light, possesses following beneficial effect:

1. this thinned light guide plate of homogeneity is shaded, through the base plate that is equipped with, be provided with the transparent adhesive layer on the base plate corresponds the play plain noodles, the transparent adhesive layer specifically is UV curing glue, the advantage that wear-resisting effect is good has, it is good to the protectiveness of base plate, the outside of transparent adhesive layer is provided with the microstructure site structural layer, utilize the microstructure site to increase light guide plate diffusion effect, the homogeneity has effectively been improved, a plurality of V type reflection grooves through being equipped with, the reflective properties that the base plate corresponds the plane of reflection has been guaranteed, and the cooperation is equipped with the light-focusing membrane, the light-focusing membrane comprises transparent basement membrane and pyramid diffusion layer, light source emission uniformity has effectively been improved, the quality of going into light has been guaranteed.

2. According to the backlight uniform thinned light guide plate, the protruding part is formed at one end of the transparent adhesive layer through the arranged transparent adhesive layer, the light incidence area of the whole light guide plate can be enlarged on one side, the use requirement of the thinned light guide plate can be met better, and the applicability is good.

And the part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, and this application has effectively improved the homogeneity of being shaded, can expand the income plain noodles area of whole light guide plate at the unilateral, can be better satisfy the use of slim light guide plate, and the suitability is good.

Drawings

Fig. 1 is a schematic structural view of a backlight uniform thin light guide plate according to the present application;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: 1. a substrate; 2. a light source; 3. a light-emitting surface; 4. a reflective surface; 5. a light incident surface; 6. a transparent adhesive layer; 7. a microstructure dot structure layer; 8. a V-shaped reflective trench; 9. a projection; 10. a light-condensing film; 101. a transparent base film; 102. a pyramid diffusion layer; 11. a light-gathering inclined plane; 12. a U-shaped fixing sheet.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present application.

Referring to fig. 1-2, a backlight uniformity thinned light guide plate comprises a substrate 1 and a light source 2, wherein a light emergent surface 3 and a reflecting surface 4 are respectively formed on the upper side and the lower side of the substrate 1, a light incident surface 5 is formed on the side of the substrate 1, a transparent adhesive layer 6 is coated on the upper side of the substrate 1 corresponding to the light emergent surface 3, a microstructure dot structure layer 7 is arranged on the upper side of the transparent adhesive layer 6, a plurality of V-shaped reflecting grooves 8 are etched on the position of the substrate 1 corresponding to the reflecting surface, a protruding part 9 is arranged on one side of the transparent adhesive layer 6 close to the light source 2, and a light condensing film 10 is arranged between the light source 2 and the substrate 1.

The transparent adhesive layer 6 is specifically UV curing adhesive, and has high hardness and good wear resistance and scratch resistance.

The convex portion 9 is provided with a plurality of light-gathering slopes 11, so that the light source 2 can enter the light source smoothly.

The outer side of the transparent adhesive layer 6 corresponding to the convex part 9 and the lower end of the substrate 1 corresponding to the reflecting surface 4 are fixedly connected with the same U-shaped fixing sheet 12, and the light source 2 is fixedly arranged in the U-shaped fixing sheet 12.

The light-gathering film 10 comprises a transparent base film 101, and the pyramid diffusion layer 102 is arranged on one side, close to the substrate 1, of the transparent base film 101, so that the emission uniformity of a light source is effectively improved, and the light-entering quality is guaranteed.

The microstructure lattice point structure layer 7 is fixed on the transparent adhesive layer 6 through screen printing.

In the application, when in use, the substrate 1 is provided, the light-emitting surface 3 corresponding to the substrate 1 is provided with the transparent adhesive layer 6, the transparent adhesive layer 6 is specifically UV curing adhesive, the substrate 1 has the advantage of good wear-resisting effect, the substrate 1 is well protected, the outer side of the transparent adhesive layer 6 is provided with the microstructure dot structure layer 7, the diffusion effect of the light guide plate is increased by using the microstructure dots, the uniformity is effectively improved, the reflection performance of the reflecting surface 4 corresponding to the substrate 1 is ensured by the plurality of V-shaped reflection grooves 8, the light-gathering film 10 is matched with the light-gathering film 10, the light-gathering film 10 is composed of the transparent bottom film 101 and the pyramid 102, the light source emission uniformity is effectively improved, the light-entering quality is ensured, the one end of the transparent adhesive layer 6 is provided with the convex part, the light-entering area of the whole light guide plate can be enlarged on one side, and the use of the thinned light guide plate can be better satisfied, the applicability is good.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present application, and equivalent alternatives or modifications according to the technical solutions and the application concepts of the present application, which are within the technical scope of the present application.

Claims

1. The utility model provides a uniformity slimming light guide plate is shaded, includes base plate (1) and light source (2), its characterized in that, the upper and lower both sides of base plate (1) are formed with play plain noodles (3) and plane of reflection (4) respectively, the avris of base plate (1) is formed with income plain noodles (5), the upside coating that base plate (1) corresponds play plain noodles (3) has one deck transparent adhesive layer (6), the upside of transparent adhesive layer (6) is provided with micro-structure site structural layer (7), base plate (1) corresponds plane of reflection () department and etches and has a plurality of V type reflection grooves (8), one side that transparent adhesive layer (6) are close to light source (2) is established to bulge (9), be provided with between light source (2) and base plate (1) and gather optical film (10).

2. The backlight uniformity thinning light guide plate according to claim 1, wherein the transparent adhesive layer (6) is a UV curing adhesive.

3. The backlight uniformity thinning light guide plate according to claim 1, wherein a plurality of light condensing inclined planes (11) are arranged on the convex portion (9).

4. The backlight uniformity thinning light guide plate according to claim 1, wherein the outer side of the transparent adhesive layer (6) corresponding to the convex portion (9) and the lower end of the substrate (1) corresponding to the reflecting surface (4) are fixedly connected with the same U-shaped fixing plate (12), and the light source (2) is fixedly installed in the U-shaped fixing plate (12).

5. The backlight uniformity thinning light guide plate according to claim 1, wherein the light condensing film (10) comprises a transparent base film (101), and the transparent base film (101) is close to the pyramid diffusion layer (102) on one side of the substrate (1).

6. The backlight uniformity thinning light guide plate according to claim 1, wherein the microstructure dot structure layer (7) is fixed on the transparent adhesive layer (6) by screen printing.