JPH0262417U - - Google Patents
Info
- Publication number
- JPH0262417U JPH0262417U JP14034188U JP14034188U JPH0262417U JP H0262417 U JPH0262417 U JP H0262417U JP 14034188 U JP14034188 U JP 14034188U JP 14034188 U JP14034188 U JP 14034188U JP H0262417 U JPH0262417 U JP H0262417U
- Authority
- JP
- Japan
- Prior art keywords
- light source
- light
- diffuser plate
- liquid crystal
- crystal display
- 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.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 1
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
第1図は第1の考案に係るバツクライトの平面
図及び断面図、第2図は第1図aに示すa部の拡
大断面図、第3図はこのバツクライトの作用を説
明する説明図、第4図は第2の考案に係るバツク
ライトの要部の拡大断面図、第5図は第1及び第
2の考案に係るバツクライトの効果を示すグラフ
、第6図は従来のバツクライトの構成を示す概略
図である。
10……光源、20……ライトガイド、30…
…拡散板、50……溝付透明板、51……溝、6
0……フレネルレンズ板、61……フレネルレン
ズ、70……液晶デイスプレイ。
1 is a plan view and a sectional view of the back light according to the first invention, FIG. 2 is an enlarged sectional view of part a shown in FIG. Figure 4 is an enlarged sectional view of the main parts of the backlight according to the second invention, Figure 5 is a graph showing the effects of the backlight according to the first and second inventions, and Figure 6 is a schematic diagram showing the structure of the conventional backlight. It is a diagram. 10... light source, 20... light guide, 30...
...Diffusion plate, 50...Grooved transparent plate, 51...Groove, 6
0... Fresnel lens plate, 61... Fresnel lens, 70... Liquid crystal display.
Claims (1)
一な拡散光を照射するバツクライトにおいて、光
源光を発する光源と、前記光源光を拡散して液晶
デイスプレイを背面から照射する拡散板と、この
拡散板に入射しなかつた光源光を拡散板に反射す
るライトガイドと、前記光源と拡散板との間に介
在されており、入射した光源光を屈折させる複数
の溝が前記光源に対応する部分に形成された溝付
透明板とを具備したことを特徴とするバツクライ
ト。 (2) 透過型の液晶デイスプレイの背面側から均
一な拡散光を照射するバツクライトにおいて、光
源光を発する光源と、前記光源光を拡散して液晶
デイスプレイを背面から照射する拡散板と、この
拡散板に入射しなかつた光源光を拡散板に反射す
るライトガイドと、前記光源と拡散板との間に介
在されており、入射した光源光を屈折させるフレ
ネルレンズが前記光源に対応する部分に形成され
たフレネルレンズ板とを具備したことを特徴とす
るバツクライト。[Claims for Utility Model Registration] (1) A backlight that emits uniform diffused light from the back side of a transmissive liquid crystal display, which includes a light source that emits light source light, and a light source that diffuses the light source light to illuminate the liquid crystal display from the back side. a light guide that reflects the light source light that did not enter the diffuser plate; and a plurality of grooves that are interposed between the light source and the diffuser plate and that refract the incident light source light. A back light comprising: a grooved transparent plate formed in a portion corresponding to the light source. (2) A backlight that irradiates uniform diffused light from the back side of a transmissive liquid crystal display includes a light source that emits light source light, a diffuser plate that diffuses the light source light and irradiates the liquid crystal display from the back side, and this diffuser plate. A light guide that reflects the light source light that has not entered the light source onto the diffuser plate, and a Fresnel lens that is interposed between the light source and the diffuser plate and refracts the incident light source light is formed in a portion corresponding to the light source. A backlight characterized by being equipped with a Fresnel lens plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988140341U JPH0734416Y2 (en) | 1988-10-26 | 1988-10-26 | Backlight |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988140341U JPH0734416Y2 (en) | 1988-10-26 | 1988-10-26 | Backlight |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0262417U true JPH0262417U (en) | 1990-05-10 |
JPH0734416Y2 JPH0734416Y2 (en) | 1995-08-02 |
Family
ID=31404418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988140341U Expired - Lifetime JPH0734416Y2 (en) | 1988-10-26 | 1988-10-26 | Backlight |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0734416Y2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0481445U (en) * | 1990-11-28 | 1992-07-15 | ||
EP0602555A2 (en) * | 1992-12-16 | 1994-06-22 | Siemens Aktiengesellschaft | Diffusing plate made of opal-like semi transparent glassy material for backlighting LCD |
JP2006127878A (en) * | 2004-10-28 | 2006-05-18 | Quanta Display Japan Inc | Lighting system and liquid crystal display using it |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6329123U (en) * | 1986-08-09 | 1988-02-25 |
-
1988
- 1988-10-26 JP JP1988140341U patent/JPH0734416Y2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6329123U (en) * | 1986-08-09 | 1988-02-25 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0481445U (en) * | 1990-11-28 | 1992-07-15 | ||
EP0602555A2 (en) * | 1992-12-16 | 1994-06-22 | Siemens Aktiengesellschaft | Diffusing plate made of opal-like semi transparent glassy material for backlighting LCD |
EP0602555A3 (en) * | 1992-12-16 | 1994-09-21 | Siemens Ag | Diffusing plate made of opal-like semi transparent glassy material for backlighting lcd. |
JP2006127878A (en) * | 2004-10-28 | 2006-05-18 | Quanta Display Japan Inc | Lighting system and liquid crystal display using it |
Also Published As
Publication number | Publication date |
---|---|
JPH0734416Y2 (en) | 1995-08-02 |
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