CN203799043U

CN203799043U - Improved light guide plate

Info

Publication number: CN203799043U
Application number: CN201420186089.0U
Authority: CN
Inventors: 李兰芝
Original assignee: KUMHO ELECTRIC (SHENZHEN) CO Ltd
Current assignee: KUMHO ELECTRIC (SHENZHEN) CO Ltd
Priority date: 2014-04-16
Filing date: 2014-04-16
Publication date: 2014-08-27
Anticipated expiration: 2024-04-16

Abstract

The utility model relates to the field of a light guide plate design technology, and discloses an improved light guide plate. The improved light guide plate comprises a light transmitting plate. The light transmitting plate comprises a light incident surface, a light emission surface and a backlight surface opposite to the light emission surface. The light incident surface is the side surface of the light transmitting plate. The improvements are as follows: the light emission surface is provided with multiple grooves arranged to be adjacent to each other, and the length direction of the grooves is vertical to the light incident direction of the light incident surface. According to the utility model, the light emission surface of the light guide plate is provided with V-shaped grooves or semi-arc-shaped grooves, such that the light emission area can be increased, and the V-shaped grooves or the semi-arc-shaped grooves can reflect or refract light to concentrate the light in a direction vertical to the light emission surface, thus the brightness in a vertical direction can also be enhanced, the light emission effect is improved, the light loss is reduced, and the light utilization rate of the light source of the light incident surface is improved. Therefore, the improved light guide plate has quite good popularization and application values, is very popular, and can be effectively popularized.

Description

The light guide plate of improvement

Technical field

The utility model relates to light guide plate design field, specifically, relates to a kind of light guide plate of improvement.

Background technology

Light guide plate, as its name suggests, plays leaded light effect, is mainly that the light that the light source of its side is sent converts area source to and derives.In prior art, modal light guide plate is mainly used in the occasion of the class such as light efficiency utilization, illuminant sign plate of the backlight of liquid crystal display, ultra-thin advertising lamp box, therapeutic medical X-ray viewer, plate lamp ornaments lighting, light engineering, but, no matter which kind of occasion, the light of side light source being converted in the process of face light, always have a large amount of light losses, make exiting surface light luminance out not high, do not reach good visual effect.

By this, develop and aly can reduce light loss, improve the modified form light guide plate of exiting surface light, be necessary, must there is application value.

Utility model content

The purpose of this utility model is to overcome the deficiency of above-mentioned prior art and the light guide plate of a kind of improvement of providing.

The technical scheme that the utility model solution prior art problem adopts is: a kind of light guide plate of improvement, comprise light-passing board, described light-passing board comprises incidence surface, exiting surface and the shady face relative with exiting surface, described incidence surface is the side of described light-passing board, and its improvement is: the groove that offers many adjacent settings on described exiting surface.

Below above technical scheme is further elaborated:

Preferably, the length direction of described groove and described incidence surface to enter light direction perpendicular.

Preferably, described groove is V-shaped.

Preferably, described groove is semicircular arc.

Preferably, the shady face of described light-passing board is provided with multiple equally distributed sites.

Preferably, described light-passing board is optics acrylic board.

The beneficial effects of the utility model are:

The light guide plate of one, a kind of improvement provided by the utility model, offer V-groove or semicircular arc groove at the exiting surface of described light guide plate, can enlarging lighting area, and V-groove or semicircular arc groove can be by light reflection or refractions and are concentrated on the direction perpendicular with exiting surface, thereby, the utility model also can increase vertical direction light, is lifted out light effect.

Two, by offer V-groove or semicircular arc groove at the exiting surface of described light guide plate, at enlarging lighting area, when being lifted out light effect, also make it possible to reduce light loss, improve the light utilization efficiency of incidence surface light source.

Three, the utility model is simple in structure, easy to use, by the improvement in light guide plate self structure, make with respect to traditional light guide plate, bright dipping better effects if, result of use is also better, thereby, the utlity model has good application value, can be very welcome, can effectively be popularized.

Brief description of the drawings

Fig. 1 is the longitudinal sectional view of the light guide plate of the utility model improvement in embodiment mono-;

Fig. 2 is the one-piece construction schematic diagram of the light guide plate of the utility model improvement in embodiment mono-;

Fig. 3 is the longitudinal sectional view of the light guide plate of the utility model improvement in embodiment bis-;

Fig. 4 is the one-piece construction schematic diagram of the light guide plate of the utility model improvement in embodiment bis-.

Realization, functional characteristics and the advantage of the utility model object, in connection with embodiment, are described further with reference to accompanying drawing.

Wherein, light-passing board 10; Incidence surface 101; Exiting surface 102; Groove 1021; Shady face 103; Site 1031; Light source 20;

Embodiment

Describe the technical solution of the utility model in detail below with reference to drawings and the specific embodiments, so as clearer, understand invention essence of the present utility model intuitively.

Fig. 1 is the longitudinal sectional view of the light guide plate of the utility model improvement in embodiment mono-; Fig. 2 is the one-piece construction schematic diagram of the light guide plate of the utility model improvement in embodiment mono-; Fig. 3 is the longitudinal sectional view of the light guide plate of the utility model improvement in embodiment bis-; Fig. 4 is the one-piece construction schematic diagram of the light guide plate of the utility model improvement in embodiment bis-.

Embodiment mono-

Shown in Fig. 1 and Fig. 2;

The light guide plate of a kind of improvement provided by the utility model, comprise light-passing board 10, described light-passing board 10 comprises incidence surface 101, exiting surface 102 and the shady face 103 relative with exiting surface 102, described incidence surface 101 is the side of described light-passing board 10, improvement of the present utility model is: on described exiting surface 102, offer the groove 1021 of many adjacent settings, the length direction of described groove 1021 and described incidence surface 101 to enter light direction perpendicular.

The side of light-passing board 10 described in Fig. 1 is placed with a light source 20, and this light source 20 can be LED lamp, the length direction that enters light direction and be light guide plate of LED lamp.

In the present embodiment, described groove 1021 is V-shaped, i.e. the adjacent setting of multiple V-grooves 1021, makes the exiting surface of light-passing board 10 present laciniation.

By this, the light guide plate of a kind of improvement provided by the utility model, exiting surface 102 in described light guide plate is offered V-groove 1021, can enlarging lighting area, and V-groove 1021 can be by light reflection or refraction and is concentrated on the direction perpendicular with exiting surface 102, thereby the utility model also can increase vertical direction light, the i.e. light of light direction in figure, thus be lifted out light effect.

Meanwhile, in the present embodiment, described shady face 103 has additional multiple equally distributed sites 1031, make the shady face 103 of light-passing board form dot surface, its effect is to form 3 D grating or three-dimensional diffuse reflection, will make light source 10 from entering the process of light direction incident, and the light reflection of part incident is downwards to light guide plate exiting surface 102, make emitting brightness high, reduce light loss, improve the light utilization efficiency of incidence surface light source.

Embodiment bis-

Shown in Fig. 3 and Fig. 4;

The side of light-passing board 10 described in Fig. 3 is placed with a light source 20, and this light source can be LED lamp, the length direction that enters light direction and be light guide plate of LED lamp.

In the present embodiment, described groove 1021 is semicircular arc, i.e. the adjacent setting of multiple semicircular arc grooves 1021 makes the exiting surface 102 of light-passing board 10 present semicircle arc structure.

By this, the light guide plate of a kind of improvement provided by the utility model, exiting surface 102 in described light guide plate is offered semicircular arc groove 1021, can enlarging lighting area, and semicircular arc groove 1021 can be by light reflection or refraction and is concentrated on the direction perpendicular with exiting surface 102, thereby the utility model also can increase vertical direction light, the i.e. light of light direction in figure, thus be lifted out light effect.

Prove by experiment, the exiting surface of light-passing board 102 is arranged to V-shaped groove 1021 or semicircular arc groove 1021, the light effect that goes out that can reach is best, but the utility model has more than the exiting surface 102 that is limited to light-passing board 10 V-groove 1021 or semicircular arc groove 1021 is set, its exiting surface 102 also can be set up the groove of other shapes and structure, as square trench, wave-shaped trench etc., at this, do not do explanation one by one, no matter and embodiment mono-or embodiment bis-, described light-passing board 10 is optics acrylic board, makes to have good light transmission.

In sum, the utility model is simple in structure, easy to use, by the improvement in light guide plate self structure, make with respect to traditional light guide plate, bright dipping better effects if of the present utility model, result of use is also better, thereby, the utlity model has good application value, can be very welcome, can effectively be popularized.

The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model instructions and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims

1. the light guide plate of an improvement, comprise light-passing board, described light-passing board comprises incidence surface, exiting surface and the shady face relative with exiting surface, and the side that described incidence surface is described light-passing board, is characterized in that: the groove that offers many adjacent settings on described exiting surface.

2. the light guide plate of improvement according to claim 1, is characterized in that: the length direction of described groove and described incidence surface to enter light direction perpendicular.

3. the light guide plate of improvement according to claim 2, is characterized in that: described groove is V-shaped.

4. the light guide plate of improvement according to claim 2, is characterized in that: described groove is semicircular arc.

5. according to the light guide plate of the improvement described in claim 3 or 4, it is characterized in that: the shady face of described light-passing board is provided with multiple equally distributed sites.

6. the light guide plate of improvement according to claim 5, is characterized in that: described light-passing board is optics acrylic board.