CN202484880U

CN202484880U - Light incident surface structure of light guide plate

Info

Publication number: CN202484880U
Application number: CN2012200790317U
Authority: CN
Inventors: 黎忠勇; 林炳腾
Original assignee: Futurity Tech Inc Twiwan R O C
Current assignee: Futurity Tech Inc Twiwan R O C
Priority date: 2012-03-06
Filing date: 2012-03-06
Publication date: 2012-10-10
Anticipated expiration: 2022-03-06

Abstract

The utility model discloses a light-incoming surface structure of a light-guiding plate, which is based on a light-guiding substrate. The light-guiding substrate comprises a light-incoming surface, a light-guiding structure arranged on the light-incoming surface by mechanical processing, and a light-emitting surface. The light-guiding structure comprises a plurality of arc-shaped mirror platform sections and a plurality of V-shaped grooves arranged on the arc surface of the mirror platform, which are used to adjust and guide the light source to be a surface light source, act in a backlight module, and thus improve the brightness and uniformity of the light-emitting surface of the light-guiding plate, and can effectively avoid the bright and dark alternation phenomenon of the traditional light-guiding plate.

Description

LGP incidence surface structure

Technical field

The utility model is relevant for a kind of LGP incidence surface structure, refers in particular to a kind ofly to adjust the correcting light source direction and promote all degree together of LGP bright dipping, and avoids the incidence surface structure of bright dark alternate situation.

Background technology

The light path means of traditional backlight technology, after the incident ray that mainly the LED lamp is penetrated got into the LGP incidence surface, its plane incidence surface infeeds established light generation unirefringence, and the angle of its light inlet can further be dwindled and obtained refracted ray, and area source is provided; Right refraction action so, even the zone of LED lamp can be brighter, the zone between LED lamp and the LED lamp is then dark partially, and produces bright secretly alternate phenomenon.

For solving the problem of traditional LGP, then there is a LGP 1 design to produce (consulting Fig. 1) in addition, this LGP 1 has an incidence surface 10 and exiting surface 11.Form the equal photo structure 12 that constitutes by continuous V-type ditch on this incidence surface 10; Incidence surface 10 is in order to accept the spot light that lamp source 13 is launched; This spot light is penetrated and behind equal photo structure 12; Produce refraction through the ditch wall of equal photo structure 12V type ditches, light source is concentrated to LGP 1 internal delivery, have spotlight effect concurrently during again by exiting surface 11 bright dippings and obtain the effect of area source.But because of light source too forward bright dipping after the ditch wall refraction of V-type ditch, influence the bright dipping briliancy of exiting surface, and then reduce the usefulness of LGP.

Summary of the invention

The purpose of the utility model is; Provide a kind of LGP bright dipping briliancy that can effectively promote to reach all degree together; And avoid occurring the LGP incidence surface structure of bright dark alternate phenomenon; Utilize on the incidence surface with the machining mode, moulding one can be adjusted the light guide structure of correcting light source direction, and solves the not enough and bright dark alternate optical issue that goes out of traditional LGP bright dipping briliancy.

For reaching aforementioned purpose, the LGP incidence surface structure that the utility model provides is the main body with a light guide base plate, it is characterized in that this light guide base plate has:

One incidence surface is positioned at the light guide base plate side end edge to accept the light source from the lamp source;

One in the face of this lamp source and with the light guide structure of machining moulding on this incidence surface, comprises to count to be the mirror platform section of cambered surface and to be located at the plurality of V-shaped ditch on each mirror platform cambered surface; And

One exiting surface adjacent to incidence surface, and is located at the light guide base plate upper surface.

Wherein, the plurality of V-shaped ditch on this mirror platform comprises the structure of the different depths.

Wherein, several cambered surfaces of this mirror platform are different radians.

Pass through said structure; The utility model LGP incidence surface structure; Utilize this incidence surface in order to accepting the light source from LED lamp source, the both sides ditch wall that its light source is had through the V-type ditch of the different cambered surfaces of the mirror platform of light guide structure and the continuous different depth and angle respectively makes refract light source produce left and right sides diffusion effect and adjusts the uniform source of light direct of travel; And then promote LGP exiting surface bright dipping briliancy and all spend, and effectively avoid the bright dark alternate situation of LGP together.

Description of drawings

Fig. 1: the structural plan figure of traditional LGP.

Fig. 2: the LGP stereogram of the utility model.

Fig. 3: the lamp source configuration enlarged drawing of the utility model.

Fig. 4: the lamp source configuration schematic diagram of the utility model.

Fig. 5: the light source projects sketch map of the utility model.

Fig. 6: the light source refraction sketch map of the utility model.

Fig. 7: the area source sketch map of the utility model.

Fig. 8: the area source of the utility model is accomplished figure.

The specific embodiment

See also Fig. 2 and shown in Figure 3, the utility model is the main body with a light guide base plate 2, and this light guide base plate 2 has an incidence surface 20 and is located at a light guide structure 21 and an exiting surface 22 on the incidence surface 20 with machining moulding mode; Wherein this incidence surface 20 is positioned at a side end edge of light guide base plate 2, is the light source of being launched in order to the lamp source 3 (being illustrated as the LED lamp) of accepting configuration;

This light guide structure 21 is located on the end face of incidence surface 20 with machining moulding mode; Comprise several mirror platform that is cambered surface 211 sections and be located at some different angles and the V-type ditch 210 of the depth on these mirror platform 211 cambered surfaces; Wherein the height H of these mirror platform 211 cambered surfaces is set in 1/3V-V scope (like Fig. 4); And with adjacent connection kenel structure as a whole, plurality of V-shaped ditch 210 then makes mirror platform 211 districts be divided into the mirror platform section of some different radians;

This exiting surface 22 is vertical adjacent to incidence surface 20 and with incidence surface 20 and is positioned at the position, upper surface of light guide base plate 2.

The utility model is when implementing; Like Fig. 5, shown in Figure 6; When lamp source 3 after LGP incidence surface 20 is injected, this light source then reflects through the V-type ditch 210 ditch walls 212 of the light guide structure 21 different depths and angle respectively, makes light source obtain the effect of different extent of refraction; Adjust the light source direct of travel and produce left and right sides diffusion effect, comprehensively to light guide base plate 2 internal delivery; Utilize the mirror platform 211 of light source simultaneously through cambered surface; See through the cambered surface of different arc angles; It is that uniform line source is to light guide base plate 2 internal delivery that the light that reflects bright dipping is concentrated; Project an emitting uniform area source (like Fig. 7) by exiting surface 22 again,, finally form an emitting uniform area source (like Fig. 8) at LCD panel 5 afterwards through optical diaphragm group 4.

The effect of the utility model is; Utilize these incidence surface 20 light guide structures 21 in order to accept light source from LED lamp source 3; Make this light source ditch wall 212 that several section cambered surface mirror platforms 211 of light guide structure 21 and some different depth angle V-type ditches have on incidence surface 20 respectively; Obtain the effect of different extent of refraction, produce diffusion effect and adjust the light source direct of travel, make light source more even; So, can promote light guide base plate 2 exiting surfaces 22 bright dipping briliancy and reach all degree together, and effectively avoid the bright dark alternate situation of LGP.

Claims

1. A light incident surface structure of a light guide plate, with a light guide substrate as the main body, characterized in that the light guide substrate has:

a light incident surface, located at the side edge of the light guide substrate to receive light from the light source;

A light guide structure formed on the light-incident surface by machining for the light source, including several curved mirror platform sections and a number of V-shaped grooves arranged on the curved surfaces of each mirror platform; and

A light emitting surface is adjacent to the light incident surface and is arranged on the upper end surface of the light guide substrate.

2. The light-incident surface structure of the light guide plate according to claim 1, wherein the V-shaped grooves on the mirror platform include structures of different depths.

3 . The structure of the light incident surface of the light guide plate according to claim 2 , wherein the curved surfaces of the mirror platform are of different radians. 4 .