JPH0453220U - - Google Patents
Info
- Publication number
- JPH0453220U JPH0453220U JP9464690U JP9464690U JPH0453220U JP H0453220 U JPH0453220 U JP H0453220U JP 9464690 U JP9464690 U JP 9464690U JP 9464690 U JP9464690 U JP 9464690U JP H0453220 U JPH0453220 U JP H0453220U
- Authority
- JP
- Japan
- Prior art keywords
- light
- liquid crystal
- crystal display
- light guide
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims description 12
- 238000009792 diffusion process Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 1
Landscapes
- Light Guides In General And Applications Therefor (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
第１図は本考案の液晶デイスプレイの光拡散装
置の第１実施例を示す導光体内部に蛍光物質を含
有させた斜視図、第２図は第２実施例を示す表面
に蛍光物質を塗布した斜視図、第３図は第２図の
変形例を示す表裏に蛍光物質を塗布した斜視図、
第４図は光源を一側面に配設した第３実施例を示
す断面図、第５図は両端面に光源を配設した第４
図の変形例を示す斜視図である。
１１……蛍光物質入りの曲面型導光体、１２…
…導光体側面、１３……導光体前面、１４……導
光体後面、１５……光源である蛍光灯、１７……
蛍光物質、２１……導光体、２２……導光体前面
、２３……導光体後面、２４……印刷された蛍光
物質含有塗料、２５……光源、４１……透明性導
光体、４２……導光体側面、４３……光源、４４
……導光体前面、４５……液晶デイスプレイ、４
６……拡散板、４７……導光体後面、４８……板
状反射板、４９……筒状反射板、５０……集光体
、５１……透明性導光体。
Fig. 1 is a perspective view showing a first embodiment of the light diffusion device for a liquid crystal display of the present invention, in which a fluorescent substance is contained inside a light guide, and Fig. 2 is a perspective view showing a second embodiment in which a fluorescent substance is coated on the surface. FIG. 3 is a perspective view showing a modification of FIG. 2 with fluorescent material coated on the front and back surfaces;
Fig. 4 is a sectional view showing a third embodiment in which a light source is disposed on one side, and Fig. 5 is a cross-sectional view showing a fourth embodiment in which a light source is disposed on both end faces.
It is a perspective view which shows the modification of a figure. 11... Curved light guide containing fluorescent material, 12...
...Light guide side surface, 13... Light guide front surface, 14... Light guide rear surface, 15... Fluorescent lamp as light source, 17...
Fluorescent material, 21... Light guide, 22... Front surface of light guide, 23... Back surface of light guide, 24... Printed fluorescent material-containing paint, 25... Light source, 41... Transparent light guide , 42... Light guide side surface, 43... Light source, 44
...Front surface of light guide, 45...Liquid crystal display, 4
6... Diffusion plate, 47... Rear surface of light guide, 48... Plate-shaped reflecting plate, 49... Cylindrical reflecting plate, 50... Light collector, 51... Transparent light guide.
Claims (1)
面に光源を配し、この光源からの光を導光体の側
面に入射し、この入射光を液晶デイスプレイと対
向する導光体の前面に導きこれより出射して液晶
デイスプレイを表示させる液晶デイスプレイの光
拡散装置において、 上記導光体に蛍光物質を含有させたことを特徴
とする液晶デイスプレイの光拡散装置。 ２ 液晶デイスプレイの後面に設けた導光体の側
面に光源を配し、この光源からの光を導光体の側
面に入射し、この入射光を液晶デイスプレイと対
向する導光体の前面に導きこれより出射して液晶
デイスプレイを表示させる液晶デイスプレイの光
拡散装置において、 上記導光体をその前面と後面とが平行な平板形
状になるように成形し、 この導光体の少なくとも前面に蛍光物質を塗布す
るとともに、 この蛍光物質の塗布量を上記光源から離れるに
従つて密になるようにしたことを特徴とする液晶
デイスプレイの光拡散装置。 ３ 上記光源と上記導光体との間に、光源からの
光を集光して導光体の側面に平行光として入射さ
せる集光体を設け、 この集光体の導光体側の表面に光を拡散する拡
散処理を施したことを特徴とする請求項１または
２に記載の液晶デイスプレイの光拡散装置。[Scope of Claim for Utility Model Registration] 1. A light source is arranged on the side of a light guide provided on the rear surface of a liquid crystal display, the light from this light source is incident on the side of the light guide, and this incident light is directed toward the liquid crystal display. What is claimed is: 1. A light diffusing device for a liquid crystal display in which light is guided to the front of a light guide and emitted from the front to display a liquid crystal display, characterized in that the light guide contains a fluorescent substance. 2. A light source is placed on the side of the light guide provided at the rear of the liquid crystal display, the light from this light source is incident on the side of the light guide, and this incident light is guided to the front of the light guide facing the liquid crystal display. In a light diffusion device for a liquid crystal display that emits light from this to display a liquid crystal display, the light guide is formed into a flat plate shape with its front and rear surfaces parallel, and at least the front surface of the light guide is coated with fluorescent material. A light diffusion device for a liquid crystal display, characterized in that the amount of the fluorescent material applied becomes denser as the distance from the light source increases. 3. A light condenser is provided between the light source and the light guide, and the light from the light source is condensed and enters the side surface of the light guide as parallel light. 3. The light diffusion device for a liquid crystal display according to claim 1, further comprising a diffusion process for diffusing light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9464690U JPH0453220U (en) | 1990-09-07 | 1990-09-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9464690U JPH0453220U (en) | 1990-09-07 | 1990-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0453220U true JPH0453220U (en) | 1992-05-07 |
Family
ID=31832762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9464690U Pending JPH0453220U (en) | 1990-09-07 | 1990-09-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0453220U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0926511A (en) * | 1995-07-12 | 1997-01-28 | Fine Rubber Kenkyusho:Kk | Light transmission plate, illumination device, light diffusion plate and condensing plate |
| JP2004537766A (en) * | 2001-08-02 | 2004-12-16 | ケンブリッジ フラット プロジェクション ディスプレイズ リミテッド | Flat panel display using tapered waveguide |
| JP2006059723A (en) * | 2004-08-20 | 2006-03-02 | Kuriotekku:Kk | Light emitting element, light emitting device equipped with the same, and display device |
| KR100580358B1 (en) * | 1998-07-17 | 2006-05-16 | 가부시키가이샤 엔프라스 | Guide plate, surface light source device of side light type and liquid crystal display |
| WO2007023703A1 (en) * | 2005-08-26 | 2007-03-01 | Tohoku University | Liquid crystal display and light guide plate |
| JP2010503017A (en) * | 2006-08-28 | 2010-01-28 | クォルコム・メムズ・テクノロジーズ・インコーポレーテッド | Angular sweep holographic illuminator |
-
1990
- 1990-09-07 JP JP9464690U patent/JPH0453220U/ja active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0926511A (en) * | 1995-07-12 | 1997-01-28 | Fine Rubber Kenkyusho:Kk | Light transmission plate, illumination device, light diffusion plate and condensing plate |
| KR100580358B1 (en) * | 1998-07-17 | 2006-05-16 | 가부시키가이샤 엔프라스 | Guide plate, surface light source device of side light type and liquid crystal display |
| JP2004537766A (en) * | 2001-08-02 | 2004-12-16 | ケンブリッジ フラット プロジェクション ディスプレイズ リミテッド | Flat panel display using tapered waveguide |
| JP2006059723A (en) * | 2004-08-20 | 2006-03-02 | Kuriotekku:Kk | Light emitting element, light emitting device equipped with the same, and display device |
| WO2007023703A1 (en) * | 2005-08-26 | 2007-03-01 | Tohoku University | Liquid crystal display and light guide plate |
| US8130340B2 (en) | 2005-08-26 | 2012-03-06 | Tohoku University | Liquid crystal display and light guide plate |
| JP2010503017A (en) * | 2006-08-28 | 2010-01-28 | クォルコム・メムズ・テクノロジーズ・インコーポレーテッド | Angular sweep holographic illuminator |
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