CN202486350U

CN202486350U - Incident plane structure of light guide plate

Info

Publication number: CN202486350U
Application number: CN201220037562XU
Authority: CN
Inventors: 黎忠勇; 林炳腾
Original assignee: Futurity Tech Inc Twiwanroc
Current assignee: Futurity Tech Inc Twiwanroc
Priority date: 2012-02-07
Filing date: 2012-02-07
Publication date: 2012-10-10
Anticipated expiration: 2022-02-07

Abstract

The utility model provides an incident plane structure of a light guide plate. The incident plane structure of the light guide plate uses a light guide base plate as a main body, the light guide base plate comprises an incident plane, a light guide structure arranged on the incident plane and a light emission plane, and the light guide structure is formed by a plurality of continuous V-shaped grooves and a plurality of sections of mirror surface platforms in adjacent alternating continuous mode. More than one shallow V-shaped groove is arranged on the mirror surface platforms and used for regulating and guiding light sources of the mirror surface platforms into surface light sources to be acted on backlight modules. Furthermore, light emission brightness and uniformity of the light emission plane of the light guide plate are improved, and a bright and dark phenomenon of a traditional light guide plate can be avoided effectively.

Description

LGP incidence surface structure

Technical field

The utility model relates to 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, mainly with the LED lamp penetrate go into to establish light and get into the LGP incidence surface after, its plane incidence surface infeeds establishes light generation unirefringence, 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 to be in order to accept the pointolite that lamp source 13 is launched; This pointolite 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, influence the bright dipping briliancy of exiting surface, and then reduce the usefulness of LGP because of light source must spread after the ditch wall refraction of V-type ditch.

Summary of the invention

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

For reaching aforementioned purpose, the utility model discloses a kind of LGP incidence surface structure, be 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 take shape in the light guide structure on this incidence surface with machine cuts, includes the continuously morphosis of mirror platform to intert each other of several V-type ditches and number sections, and is provided with the more than one V-type groove shallow than the V-type ditch in this mirror platform; And

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

Wherein, this V-type groove is refraction microgroove or groove.

Wherein, this V-type ditch is single V-type ditch or continuous V-type groove structure.

Wherein, this V-type groove comprises first plane of refraction and second plane of refraction.

Wherein, first plane of refraction of this V-type groove and second plane of refraction are isometric or not isometric structure.

Pass through said structure; The LGP incidence surface structure of the utility model; Utilize this incidence surface in order to accept light source from LED lamp source; Its light source is that forward is advanced through the mirror platform correcting light source of light guide structure respectively, and first plane of refraction and second plane of refraction that utilize both sides ditch wall that continuous V-type ditch has and V-type groove to have, makes refract light source produce diffusional effect and adjusts the light source direct of travel; And then promote light guide base plate exiting surface bright dipping briliancy and equal degree together, and effectively avoid near the bright dark alternate situation light inlet.

Description of drawings

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

Fig. 2: the LGP stereographic map of the utility model.

Fig. 3: the lamp source configuration schematic diagram of the utility model.

Fig. 4: the lamp source configuration enlarged drawing of the utility model.

Fig. 5: the light source refraction synoptic diagram of the utility model.

Fig. 6: the light source projects synoptic diagram of the utility model.

Fig. 7: the area source of the utility model is accomplished figure.

Embodiment

See also Fig. 2 and shown in Figure 3, the LGP incidence surface structure of 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 the excision forming mode; Wherein this incidence surface 20 is positioned at a side end edge of light guide base plate 2, the light source of being launched in order to the lamp source 3 (being illustrated as the LED lamp) of accepting configuration (like Fig. 4);

This light guide structure 21 is located on the end face of incidence surface 20 with the machine cuts molding mode; Comprise number continuous V-type ditches 210 and several and be the mirror platform 211 of minute surface; And with continuous V-type ditch 210 adjacent connection one mirror platforms 211; The form of interting each other continuously is structure as a whole, and is provided with the more than one V-type groove 213 shallow than the V-type ditch (being illustrated as three V-type grooves) in this section mirror platform 211, and this V-type groove 213 comprises first plane of refraction 214 and second plane of refraction 215; And first plane of refraction 214 and second plane of refraction 215 are isometric or not isometric structure (being illustrated as isometric form), make to produce different refraction actions.

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 incidence surface 20 is injected, this light source then reflects through the continuous V-type ditch 210 ditch walls 212 and the more shallow V-type groove 213 of the degree of depth of light guide structure 21 respectively, makes light source obtain the effect of different extent of refraction; Adjust the light source direct of travel and produce diffusional effect, comprehensively to light guide base plate 2 internal delivery; Utilize the mirror platform 211 of light source simultaneously through minute surface; The correcting light source is that forward is advanced; It is that uniform line source is to light guide base plate 2 internal delivery that light source is concentrated; Project an emitting uniform area source by exiting surface 22 again,, finally form an emitting uniform area source (like Fig. 7) at LCD panel 5 afterwards through optical diaphragm group 4.

The effect of the utility model is; The light guide structure 21 that utilizes this incidence surface 20 is in order to accept the light source from LED lamp source 3; Make this light source respectively on incidence surface 20 the mirror platform 211 correcting light sources of light guide structure 21 be that forward is advanced, the ditch wall 212 and the degree of depth that have by V-type ditch continuously simultaneously are shallow V-type groove 213 than V-type ditch 210, obtain the effect of different extent of refraction; Produce diffusional 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 equal degree together, and effectively avoid near the bright dark alternate situation light inlet.

Claims

1. a LGP incidence surface structure is the main body with a light guide base plate, it is characterized in that this light guide base plate has:

2. according to the described LGP incidence surface of claim 1 structure, it is characterized in that this V-type groove is refraction microgroove or groove.

3. according to the described LGP incidence surface of claim 1 structure, it is characterized in that this V-type ditch is single V-type ditch or continuous V-type groove structure.

4. according to the described LGP incidence surface of claim 1 structure, it is characterized in that this V-type groove comprises first plane of refraction and second plane of refraction.

5. according to the described LGP incidence surface of claim 4 structure, it is characterized in that first plane of refraction of this V-type groove and second plane of refraction are isometric or not isometric structure.