JP3110287U

JP3110287U - Light guide light incident structure

Info

Publication number: JP3110287U
Application number: JP2005000589U
Authority: JP
Inventors: 曾文保
Original assignee: 科橋電子股▲ふん▼有限公司
Priority date: 2005-02-09
Filing date: 2005-02-09
Publication date: 2005-06-16
Anticipated expiration: 2011-02-09

Abstract

【課題】光源拡散作用が増し、光源が均一化するライトガイドの入光構造を提供
する。
【解決手段】ライトガイドの入光構造は、発光体光源を受ける入光面、上述の入
光面と相互に連接する底面及び底面と相対して発光体光源を出カする出光面か
ら構成される。発光体はライトガイドの入光面の一側面に設置される。このライ
トガイドの入光面は複数個の多角錐体構造を含み、発光体の入光光源は、多角錐
体構造を経て光源拡散作用を高め、発光体の光源をライトガイドの出光面に向か
って均一に放出する。
【選択図】図2Provided is a light guide light incident structure in which a light source diffusion action is increased and a light source is made uniform.
The light guide has a light incident structure including a light incident surface that receives the light source, a bottom surface that is connected to the light incident surface, and a light output surface that emits the light source relative to the bottom surface. The The light emitter is installed on one side of the light incident surface of the light guide. The light incident surface of the light guide includes a plurality of polygonal pyramid structures. The light incident light source of the illuminant enhances the light source diffusing action through the polygonal pyramid structure, and the light source of the illuminant is directed to the light exit surface of the light guide. Release evenly.
[Selection] Figure 2

Description

本考案は、ライトガイドの入光構造に関するもので、ライトガイドに於ける入光面の拡散効果を改善するものである。 The present invention relates to the light incident structure of a light guide and improves the diffusion effect of the light incident surface in the light guide.

図1に示すのは、一般的な液晶モジュールの基本構造の光源投射指示図で、通常発光体(本実施例では発光体を発行ダイオード10とする)、ライトガイド20、拡散板30、プリズム片40及び液晶面板50を含む。そのうち、拡散板30とプリズム片40は順にライトガイド20上方へ設置する。このライトガイド20はポリマー樹脂から作られ、楔形の形状で、入光面21、出光面22、出光面22と相対して一定の角度を形成する底面から構成される。発光体10には、ライトガイドの入光面21一側面を設置し、入光面21から発光ダイオード10の光源を受ける。そして底面23を経由して光源を出光面22へ導き、続いて拡散板30、プリズム片40を通った後、液晶面板50に照射される。 FIG. 1 shows a light source projection instruction diagram of a basic structure of a general liquid crystal module. A normal light emitter (in this embodiment, the light emitter is an issuing diode 10), a light guide 20, a diffuser plate 30, a prism piece 40 and a liquid crystal face plate 50 are included. Among them, the diffusion plate 30 and the prism piece 40 are sequentially installed above the light guide 20. The light guide 20 is made of a polymer resin, has a wedge shape, and includes a light incident surface 21, a light output surface 22, and a bottom surface that forms a certain angle relative to the light output surface 22. The light emitter 10 is provided with one side of the light guide incident surface 21 and receives the light source of the light emitting diode 10 from the incident surface 21. Then, the light source is guided to the light exit surface 22 via the bottom surface 23, and subsequently passed through the diffusion plate 30 and the prism piece 40, and then irradiated to the liquid crystal face plate 50.

拡散板30の作用は、通過する光線を均一に拡散することである。これによって液晶モジュールの明暗区現象を改善しているが、効果には限度があり、このため一部のバックライトモジュールでは、ライトガイド20と拡散板30隙間を故意に長くしてライトガイド20から放出する光線が拡散板30へ入る範囲を拡大し、薄暗い区域を縮小させている。しかしながら、この種の構造は、効果が有限であり、且つバックライトモジュールの厚みが増すので、液晶面板の軽薄化に逆行する。 The action of the diffusing plate 30 is to uniformly diffuse the light beam passing therethrough. This improves the light and dark area phenomenon of the liquid crystal module, but the effect is limited. For this reason, in some backlight modules, the gap between the light guide 20 and the diffusion plate 30 is deliberately increased from the light guide 20. The range in which the emitted light enters the diffuser plate 30 is enlarged, and the dim area is reduced. However, this type of structure has a limited effect and increases the thickness of the backlight module, and thus goes against the lightening of the liquid crystal faceplate.

解決しようとする問題点は、明暗区を改善するためにライトガイドと拡散板の間を故意に広げるため、液晶面板の軽薄化に逆行する点である。 The problem to be solved is that it goes against the lightening of the liquid crystal face plate in order to intentionally widen the space between the light guide and the diffusion plate in order to improve the light-dark area.

本考案は、発光体光源を受ける入光面、上述の入光面と相互に連接する底面及び底面と相対して発光体光源を出カする出光面から構成される。発光体はライトガイドの入光面の一側面に設置される。このライトガイドの入光面は複数個の多角錐体構造を含み、発光体の入光光源は、多角錐体構造を経て光源拡散作用を高め、発光体の光源をライトガイドの出光面に向かって均一に放出することを最も主要な特徴とする。 The present invention includes a light incident surface that receives a light emitter light source, a bottom surface that is connected to the above light incident surface, and a light exit surface that outputs the light emitter light source relative to the bottom surface. The light emitter is installed on one side of the light incident surface of the light guide. The light guide incident surface includes a plurality of polygonal pyramid structures, and the light incident light source enhances the light source diffusion through the polygonal pyramid structure, and the light source of the light emitter is directed toward the light guide light exit surface. The most important feature is to release evenly.

本考案のライトガイドの入光構造は、光源拡散作用が増し、光源が均一化するという利点がある。 The light incident structure of the light guide of the present invention has the advantage that the light source diffusion action increases and the light source becomes uniform.

本考案の構造は、図1と同様に、発光体(本実施例では発光体を発行ダイオード10とする)、ライトガイド20、拡散板30、プリズム片40及び液晶面板50を含む。そのうち、拡散板30とプリズム片40は順にライトガイド20上方へ設置する。このライトガイド20はポリマー樹脂で一体成型され、発光ダイオード10の光源を受ける入光面21と、上述の入光面21と相互に連接する底面23、そして底面23と相対して発光ダイオード10の光源を出カする出光面22を含み、発光ダイオード10の側面にはライトガイド入光面の一側面が設置される。 The structure of the present invention includes a light emitter (in this embodiment, the light emitter is the emitting diode 10), a light guide 20, a diffusion plate 30, a prism piece 40, and a liquid crystal face plate 50, as in FIG. Among them, the diffusion plate 30 and the prism piece 40 are sequentially installed above the light guide 20. The light guide 20 is integrally molded with a polymer resin, and a light incident surface 21 that receives the light source of the light emitting diode 10, a bottom surface 23 that is connected to the light incident surface 21, and the light emitting diode 10 opposite the bottom surface 23. A light exit surface 22 that emits the light source is included, and one side surface of the light guide incident surface is disposed on the side surface of the light emitting diode 10.

図2に示すとおり、ライトガイド20の入光面21に複数の多角錐体構造24が形成され、その多角錐体構造24は連続して規則的に配列され、且つその多角錐体構造24の錐状は突出した入光面を形成する。 As shown in FIG. 2, a plurality of polygonal pyramid structures 24 are formed on the light incident surface 21 of the light guide 20, and the polygonal pyramid structures 24 are arranged regularly and continuously. The cone shape forms a protruding light incident surface.

或いは、図3に示すとおり、その多角錐体構造24の錐状が、凹んだ形体で設置される。 Alternatively, as shown in FIG. 3, the cone shape of the polygonal pyramid structure 24 is installed in a concave shape.

図4、図５に示すとおり、各々複数の多角錐体構造24の配列が、非連続的に配列される。ライトガイド20の入光面21が発光ダイオード10の光源を受け、多角錐体構造24によって、拡散面の拡散放射作用が高まり、底面23からの反射によって、光源が均一に発散され、出光面22へ導き、そして拡散板30、プリズム片40を通過して、液晶面板50へ照射される。 As shown in FIGS. 4 and 5, the plurality of polygonal pyramid structures 24 are discontinuously arranged. The light incident surface 21 of the light guide 20 receives the light source of the light emitting diode 10, and the diffused radiation action of the diffusion surface is enhanced by the polygonal pyramid structure 24, and the light source is uniformly diverged by reflection from the bottom surface 23, and the light exit surface 22 Then, the liquid crystal face plate 50 is irradiated through the diffusion plate 30 and the prism piece 40.

他に、図6に示すとおり、発光体はライト管10′から構成される。ライト管10′の両側の光源は弱いため、ライトガイド20の入光面21と、ライト管10′両側に相対する箇所に、複数個の多角錐体構造24を設置する。これによって、拡散面の放射作用が増し、光源が均一に出光される。 In addition, as shown in FIG. 6, the light emitter is composed of a light tube 10 '. Since the light sources on both sides of the light tube 10 'are weak, a plurality of polygonal pyramid structures 24 are installed on the light incident surface 21 of the light guide 20 and on the locations opposite to both sides of the light tube 10'. Thereby, the radiation action of the diffusion surface is increased, and the light source is emitted uniformly.

公知の一般液晶モジュールの光源投射構造指示図である。It is a light source projection structure instruction | indication of a well-known general liquid crystal module. 本考案第一実施例のライトガイド構造外観立体図である。1 is a three-dimensional view of a light guide structure according to a first embodiment of the present invention. 本考案第二実施例のライトガイド構造外観立体図である。It is a light guide structure external appearance three-dimensional view of this invention 2nd Example. 本考案第三実施例のライトガイド構造外観立体図である。It is a three-dimensional external view of the light guide structure of the third embodiment of the present invention. 本考案第四実施例のライトガイド構造外観立体図である。It is a three-dimensional external view of the light guide structure of the fourth embodiment of the present invention. 本考案第五実施例のライトガイド構造外観立体図である。It is a light guide structure external appearance three-dimensional figure of 5th Example of this invention.

Explanation of symbols

10 発光ダイオード
107 ライト管
20 ライトガイド
21 入光面
21 出光面
23 底面
24 多角錐体構造
30 拡散板
40 プリズム片
50 液晶面板 10 Light emitting diode
107 light tube
20 Light guide
21 Incident surface
21 Light emitting surface
23 Bottom
24 Polygonal pyramid structure
30 Diffuser
40 prism pieces
50 LCD faceplate

Claims

The light guide includes a light incident surface that receives the light source, a bottom surface that is connected to the light incident surface, and a light output surface that outputs the light source relative to the bottom surface. A light guide light incident structure, wherein the light guide light incident surface includes a plurality of polygonal pyramid structures.

2. The light guide light incident structure according to claim 1, wherein each of the plurality of polygonal pyramid structures is arranged on average in continuous regularity.

2. The light guide light incident structure according to claim 1, wherein the plurality of polygonal pyramid structures are arranged in a discontinuous regularity.

2. The light guide light incident structure according to claim 1, wherein each of the plurality of polygonal pyramid structures is a light incident surface from which a conical portion protrudes.

2. The light guide light incident structure according to claim 1, wherein each of the plurality of polygonal pyramid structures is a light incident surface having a concave conical portion.

2. The light guide incident light according to claim 1, wherein the light emitter is a light tube, and a plurality of polygonal pyramid structures are installed at the light incident surface of the light guide and opposite positions of both ends of the light tube. Construction.