CN208224528U - A kind of horn mouth light guide plate of two sides micro-structure - Google Patents

Abstract

The utility model discloses a kind of horn mouth light guide plates of two sides micro-structure, including light conducting plate body, light conducting plate body side thickness is greater than other side thickness and forms horn mouth, and horn mouth side is incidence surface, the other side is light-emitting surface, there is horn mouth an inclined-plane to be connected with light-emitting surface and form 5~15 ° of angles, multiple the first vertical micro-structures are continuously equipped on the incidence surface, its section is zigzag, and multiple second micro-structures vertical with incidence surface are continuously provided on light-emitting surface, interface is also zigzag.Micro-structure is arranged simultaneously in the incidence surface and light-emitting surface of horn mouth light guide plate in the utility model, increases optics utilization rate.

Description

A kind of horn mouth light guide plate of two sides micro-structure

Technical field

The utility model relates to a kind of light guide plate more particularly to a kind of horn mouth light guide plates of two sides micro-structure.

Background technique

Now, backlight module has been widely used, and general display panel structure is by a panel one backlight module group of collocation It closes.Meanwhile with the use habit and the market demand of the common people now, display panel, which is also directed to lightening direction, to be developed, and The thickness and weight for reducing backlight module are to reduce one of display panel overall structure mode.Conventional backlight module is at least by light Source such as LED is constituted with the primary clusterings such as light guide plate or light leading diaphragm, shows pattern or text to provide panel light, and can be according to Such as reflecting plate component is added according to remaining consideration, effect is presented in the light for promoting backlight module.Therefore, backlight module to be reduced Integral thickness and weight can be improved and be designed for the thickness of the light guide plate or light leading diaphragm.

Theoretically, when the decline of the thickness of light guide plate or light leading diaphragm, it will lead to its incidence surface size less than dimension of light source, make The light that light source issues can not expose to completely in light guide plate or light leading diaphragm, cause amount light insufficient, therefore existing plate Can not be in the case where meeting lightening requirement with wedge type light guide plate or light-leading film, while meeting the enough light of incidence surface fechtable again Amount.

Therefore currently used coping style follows dimension of light source to add one for the incident side in light guide plate or light leading diaphragm Taper structure (taper), industry is also referred to as horn mouth so that the light of light source can borrow the taper structure enter the light guide plate or In light-leading film, the utilization rate of light is promoted.Similarly, the light guide sheet or light-leading film for having taper structure set to meet optics Meter and improving optical guide effect, also as light guide plate or light-leading film, can have disposed thereon optical microstructures pattern as, with Enhance optical effect.

The most common optical microstructures are exactly that site is arranged in light-emitting surface on existing light guide plate, to enhance its light efficiency effect Fruit, however due to bell-mouthed presence, simple light-emitting surface setting site makes optics utilization rate lower, causes to waste.

Utility model content

The purpose of the utility model is to overcome the defect of the prior art, the horn mouth for providing a kind of two sides micro-structure is guide-lighting Plate is arranged micro-structure simultaneously in its incidence surface and light-emitting surface, leads so that smooth surface enters comprehensively for the light guide plate of horn mouth form Tabula rasa and converging at the micro-structure of light-emitting surface carries out guide-lighting, increases optics utilization rate.

To achieve the above object, the utility model proposes following technical solutions: a kind of horn mouth of two sides micro-structure is guide-lighting Plate, including light conducting plate body, light conducting plate body side thickness be greater than other side thickness formed horn mouth, and horn mouth side be into Smooth surface, the other side are light-emitting surface, and there is an inclined-plane to be connected with light-emitting surface and form 5~15 ° of angles for horn mouth, on the incidence surface Multiple the first vertical micro-structures are continuously equipped with, section is zigzag, and multiple and incidence surface is continuously provided on light-emitting surface The second vertical micro-structure, interface are also zigzag.

Preferably, the sawtooth angle of first micro-structure is 60~145 °, second is that the sawtooth angle of micro-structure is 75~105 °.

Compared with prior art, the revealed a kind of horn mouth light guide plate of two sides micro-structure of the utility model has such as It is lower the utility model has the advantages that by the way that zigzag micro-structure is arranged in incidence surface, increase radiation source light source diffusion breadth it, thus same Under equal brightness cases, LED lamp bead quantity in light source is reduced, and the case where black line will not occur between two LED lamp beads, led to The light that the inclined-plane for crossing 5~15 ° of angles of setting makes incidence surface shine in realizes total reflection, improves light source utilization rate, synchronizes Sawtooth micro-structure is arranged in light-emitting surface, so that the light to shine out promotes the irradiation brightness of light-emitting surface at spreading morphology, to improve Light overall utilization rate.

Detailed description of the invention

Fig. 1 is the schematic diagram of the utility model light guide plate.

Specific embodiment

Below in conjunction with the attached drawing of the utility model, the technical solution of the utility model embodiment is carried out clear, complete Description.

As shown in Figure 1, a kind of revealed horn mouth light guide plate of two sides micro-structure of the utility model, including light guide plate sheet Body 1, light conducting plate body side thickness is greater than other side thickness and forms horn mouth 2, and horn mouth side is incidence surface, and the other side is There is an inclined-plane 3 to be connected with light-emitting surface and form 5~15 ° of included angle As for light-emitting surface, horn mouth, continuously be equipped on the incidence surface more A the first vertical micro-structure 4, section are zigzag, and multiple vertical with incidence surface second are continuously provided on light-emitting surface Micro-structure 5, interface are also zigzag.

Particularly, the sawtooth angle B of first micro-structure is 60~145 °, and second is the sawtooth angle B1 of micro-structure It is 75~105 °.

A kind of horn mouth light guide plate of two sides micro-structure, principle are as follows: light source direct irradiation involved in the utility model In the sawtooth micro-structure of incidence surface, the open angle of light is reduced by triangle bottom structure, so that light is in sawtooth Bottom converges to form light source line, is then irradiated to below the micro-structure of light-emitting surface, then will by the triangle broached-tooth design on light-emitting surface Light source is spread out completely, to improve light overall utilization rate.

The technology contents and technical characteristic of the utility model have revealed that as above, however those skilled in the art still may be used Can teaching based on the utility model and announcement and make various replacements and modification without departing substantially from the spirit of the present invention, therefore, this Utility model protection range should be not limited to the revealed content of embodiment, and should include the various replacements without departing substantially from the utility model And modification, and covered by present patent application claim.

Claims (2)

1. a kind of horn mouth light guide plate of two sides micro-structure, including light conducting plate body, it is characterised in that: light conducting plate body side is thick It spends and is greater than other side thickness formation horn mouth, and horn mouth side is incidence surface, the other side is light-emitting surface, and horn mouth is oblique with one Face is connected with light-emitting surface and forms 5~15 ° of angles, is continuously equipped with multiple the first vertical micro-structures on the incidence surface, section Face is zigzag, and multiple second micro-structures vertical with incidence surface are continuously provided on light-emitting surface, and interface is also zigzag.

2. the horn mouth light guide plate of two sides micro-structure according to claim 1, it is characterised in that: first micro-structure Sawtooth angle is 60~145 °, and second be the sawtooth angle of micro-structure is 75~105 °.