CN202995072U

CN202995072U - Light guide plate structure

Info

Publication number: CN202995072U
Application number: CN 201220667719
Authority: CN
Inventors: 张俊彬; 曾国柱
Original assignee: Puyu Optoelectronics Co ltd
Current assignee: Puyu Optoelectronics Co ltd
Priority date: 2012-12-06
Filing date: 2012-12-06
Publication date: 2013-06-12
Anticipated expiration: 2022-12-06

Abstract

The utility model discloses light guide plate structure mainly provides a light guide plate structure that can improve light source brilliance and homogeneity. The utility model discloses an at least one side of light guide plate is equipped with plural microstructure, and each microstructure is sunken in this light guide plate, perhaps each microstructure salient outside this light guide plate, and the degree of depth between each microstructure is inequality.

Description

Light conducting plate structure

Technical field

The utility model refers to a kind of light source briliancy and inhomogeneity light conducting plate structure of improving especially relevant for a kind of light conducting plate structure.

Background technology

Because the liquid crystal of panel of LCD itself is not had a characteristics of luminescence, thereby for reaching display effect, needing provides a planar light source device to panel of LCD, as back light system, its role is to area source abundant to panel of LCD supply briliancy and that be evenly distributed.

The back light system of prior art mainly is comprised of light source, light guide plate, reflecting plate, diffuser plate and prism plate.This light source can be arranged at light guide plate one side or two opposite sides and with light emission to this light guide plate.The effect of this light guide plate is to guide the light transmission direction, make light by the exiting surface uniform of light guide plate, the reflecting plate bottom surface of this light guide plate relatively arranges, and again being reflected into by the light of bottom surface of light guide plate outgoing in this light guide plate, improves the utilization factor of light.Diffuser plate sets gradually with the exiting surface of the relative light guide plate of prism plate, so that more even by the distribution of light of light guide plate outgoing, and then briliancy and the homogeneity of raising panel of LCD.

The utility model content

The technical matters that the utility model solves is namely providing a kind of light source briliancy and inhomogeneity light conducting plate structure of improving.

The technological means that the utility model adopts is as follows.

Light guide plate of the present utility model one side at least is provided with plural microstructure, and each microstructure is recessed in this light guide plate, and the degree of depth between each microstructure is not identical, and perhaps, each microstructure protrudes from outside this light guide plate, and the height between each microstructure is not identical.

According to above-mentioned technical characteristics, described light guide plate is provided with a bottom surface, with respect to the exiting surface of this bottom surface, and the incidence surface that connects this bottom surface and exiting surface, and each microstructure is located on this incidence surface.

According to above-mentioned technical characteristics, described each microstructure can be arranged in this light guide plate for continuity.

According to above-mentioned technical characteristics, described each microstructure can be arranged in this light guide plate for noncontinuity.

Each above-mentioned microstructure can be circle; Perhaps, each microstructure can be angle vertebra shape.

The beneficial effect that the utility model produces: can improve light source briliancy and homogeneity.

Description of drawings

Fig. 1 is the structural perspective of a preferred embodiment light guide plate in the utility model.

Fig. 2 is the structural representation of a preferred embodiment light guide plate in the utility model.

Fig. 3 is the structure for amplifying schematic diagram of a preferred embodiment light guide plate in the utility model.

Fig. 4 is the structure for amplifying schematic diagram of another embodiment light guide plate in the utility model.

Fig. 5 is the structure for amplifying schematic diagram of an embodiment light guide plate again in the utility model.

The figure number explanation:

Light guide plate 1

Bottom surface 11

Exiting surface 12

Incidence surface 13

Microstructure 14.

Embodiment

as Fig. 1 the utility model one preferred embodiment light conducting plate structure stereographic map, and shown in Fig. 2 the utility model one preferred embodiment light conducting plate structure schematic diagram, light guide plate 1 of the present utility model is provided with a bottom surface 11, exiting surface 12 with respect to bottom surface 11, and the incidence surface 13 that connects bottom surface 11 and exiting surface 12, incidence surface 13 is provided with plural microstructure 14 (can be the site form), each microstructure 14 is recessed in the incidence surface 13 of light guide plate, and the degree of depth that each microstructure is 14 is not identical, please consult simultaneously in embodiment shown in Figure 3, each microstructure 14 can be arranged in for continuity the incidence surface 13 of light guide plate, and each microstructure 14 can be circle, certainly, each microstructure also can be located at bottom surface or exiting surface.

Light guide plate of the present utility model can be applicable in backlight module or light supply apparatus (for example light fixture), and each light source can be arranged at outside the incidence surface of this light guide plate, the light of light source is via reflection and the scattering process of each microstructure on incidence surface, and to each different directions transmission, finally the exiting surface by light guide plate penetrates, and can make light guide plate luminous evenly and improve the light source briliancy.

Moreover as shown in another embodiment of Fig. 4, each microstructure 14 also can be the incidence surface 13 that noncontinuity is arranged in light guide plate, and each microstructure 14 can be the form of angle vertebra shape.

In addition, in the various embodiments described above, each microstructure 14 also can protrude from outside light guide plate 1, and outstanding height is not identical, and as again as shown in an embodiment of Fig. 5, each microstructure 14 protrudes from the incidence surface 13 of light guide plate, can reach equally the effect that improves the light source briliancy.

Claims

1. A light guide plate structure, characterized in that at least one side of the light guide plate is provided with complex microstructures;

Each microstructure is recessed in the light guide plate, and the depths of each microstructure are different;

Alternatively, the microstructures protrude from the light guide plate, and the heights of the microstructures are different.

2. The light guide plate structure according to claim 1, wherein the light guide plate is provided with a bottom surface, a light exit surface opposite to the bottom surface, and a light incident surface connecting the bottom surface and the light exit surface, and each microstructure is arranged on the light guide plate. incident surface.

3. The light guide plate structure according to claim 1 or 2, wherein each microstructure is continuously arranged on the light guide plate.

4. The light guide plate structure according to claim 3, wherein each microstructure is circular.

5. The light guide plate structure according to claim 3, wherein each microstructure is pyramid-shaped.

6. The light guide plate structure according to claim 1 or 2, wherein each microstructure is discontinuously arranged on the light guide plate.

7. The light guide plate structure according to claim 6, wherein each microstructure is circular.

8. The light guide plate structure according to claim 6, wherein each microstructure is pyramid-shaped.