JPH04100084A - display device - Google Patents
display deviceInfo
- Publication number
- JPH04100084A JPH04100084A JP2217730A JP21773090A JPH04100084A JP H04100084 A JPH04100084 A JP H04100084A JP 2217730 A JP2217730 A JP 2217730A JP 21773090 A JP21773090 A JP 21773090A JP H04100084 A JPH04100084 A JP H04100084A
- Authority
- JP
- Japan
- Prior art keywords
- light
- display
- lamp
- display device
- fluorescent
- 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
- 239000000463 material Substances 0.000 claims description 10
- 239000003086 colorant Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は表示装置の背後照明構造に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a back lighting structure for a display device.
本発明は表示領域に応じて異なる複数の色彩で表示を行
なう表示パネルの背後照明構造において、発光源が可視
光よりも紫外光を多（発するランプであること、前記紫
外光により螢光を発する材料をランプから表示パネルに
至る光の経路の間に配置すること、および表示領域に応
じて螢光色の異なる複数の螢光材料を用いることにより
、効率がよく、かつ幻想的な色彩の表示を行なおうとす
るものである。The present invention provides a back lighting structure for a display panel that displays a plurality of colors that differ depending on the display area, in which the light emitting source is a lamp that emits more ultraviolet light than visible light, and the ultraviolet light emits fluorescent light. By placing the material between the light path from the lamp to the display panel and by using multiple fluorescent materials with different fluorescent colors depending on the display area, efficient and fantastic color display can be achieved. This is what we are trying to do.
従来の多色表示を行なう表示パネルの背後照明は、発光
源に可視光を発する豆電球や発光ダイオード、螢光管１
、どを用い、表示領域に応じて透過する波長の異なるカ
ラーフィルターを発光源と表示パネルとの間に配置して
多色表示を行なっている。Conventional back lighting for display panels that perform multicolor display uses small light bulbs, light emitting diodes, or fluorescent tubes that emit visible light as light sources.
, etc., and a color filter that transmits different wavelengths depending on the display area is placed between the light emitting source and the display panel to perform multicolor display.
しかし、前述の従来技術ではカラーフィルターがある特
定の波長の光は透過するが、その波長から離れた光成分
は無駄に吸収してしまうという特性上、発光源の光成分
のうちわずか一部しか有効利用されず、電力から有効光
への変換効率が大変低いという問題点を有する。However, in the conventional technology described above, only a small portion of the light components of the light emitting source are transmitted through the color filter, but light components of a certain wavelength are absorbed unnecessarily. It has the problem that it is not used effectively and the conversion efficiency from electric power to effective light is very low.
本発明は従来とは異なる発光原理を応用して、上記問題
点を解決するとともに、従来とは異なる雰囲気の多色表
示の表示装置を提供することを目的とする。It is an object of the present invention to solve the above-mentioned problems by applying a light emitting principle different from the conventional one, and to provide a display device that displays a multicolor display with a different atmosphere from the conventional one.
本発明の表示装置は、表示パネルの背面より光を照射し
てその透過光により表示を行なう表示装置において、ラ
ンプが可視光よりも紫外光を多（発する特性であること
、前記紫外光により螢光を発する材料をランプから表示
パネルに至る光の経路の間に配置すること、および、表
示領域に応じて螢光色の異なる複数の螢光材料を用いる
ことを特徴とする。The display device of the present invention is a display device in which light is emitted from the back of a display panel and display is performed using the transmitted light, and the lamp has a characteristic of emitting more ultraviolet light than visible light. The present invention is characterized in that a material that emits light is disposed between the light paths from the lamp to the display panel, and that a plurality of fluorescent materials with different fluorescent colors are used depending on the display area.
螢光灯はガラス管の内側の螢光物質が、水銀蒸気の放電
で出る紫外線によって励起され、可視光を発する。ここ
で、ガラス管の内側に螢光物質を置かなければ、紫外光
を発するランプとなる。このランプの外部に螢光物質を
配置すれば、紫外光があたる部分にある螢光物質のとこ
ろから可視光を発する照明装置を作ることができる。In a fluorescent lamp, a fluorescent substance inside a glass tube is excited by ultraviolet light emitted by a discharge of mercury vapor, and emits visible light. If no fluorescent material is placed inside the glass tube, the lamp will emit ultraviolet light. By placing a fluorescent substance outside the lamp, it is possible to create a lighting device that emits visible light from the fluorescent substance in the area exposed to ultraviolet light.
また、通常の螢光灯では可視光として白色光や太陽光に
近いスペクトル分布の光を発するが、螢光物質の材料を
変えることにより、赤、緑、青などの色で発光させるこ
とが可能であるため、表示領域に対応して螢光色の異な
る複数の螢光材料を配置して多色表示の表示装置を作る
ことが出来る〔実施例〕
本発明の実施例である表示装置の断面構造の概念図を第
１図に示す。液晶表示パネル１の背後にランプ４を置（
。このランプは可視光よりも紫外光５を多く発する。紫
外線に対する透過度の低いフィルム２に螢光物質５Ａ−
５０を塗布した材料を、ランプと液晶表示パネルとの間
に配置する。In addition, normal fluorescent lamps emit visible light with a spectral distribution similar to white light or sunlight, but by changing the fluorescent material, it is possible to emit light in colors such as red, green, and blue. Therefore, it is possible to create a multicolor display device by arranging a plurality of fluorescent materials with different fluorescent colors corresponding to the display area [Example] Cross section of a display device that is an example of the present invention A conceptual diagram of the structure is shown in Figure 1. Place the lamp 4 behind the liquid crystal display panel 1 (
. This lamp emits more ultraviolet light 5 than visible light. Fluorescent substance 5A- is added to the film 2 which has low transmittance to ultraviolet
The material coated with No. 50 is placed between the lamp and the liquid crystal display panel.
３Ａ−５（１！は紫外光５を受けて互いに異なる色の可
視光を発光するもので、パネル表面の表示の色配置と対
応する領域にそれぞれ塗布されている。3A-5 (1!) emits visible light of different colors upon receiving ultraviolet light 5, and is applied to areas corresponding to the display color arrangement on the panel surface.
波長が２００μｍ〜３１５μｍの紫外線は人体には有害
なため、ランプ４の発する紫外光の波長は５６５μｍ程
度になるようにする。Since ultraviolet light with a wavelength of 200 μm to 315 μm is harmful to the human body, the wavelength of the ultraviolet light emitted by the lamp 4 is set to be about 565 μm.
上述の構成によれば、カラーフィルタによる損大が無く
、紫外光のほとんどがそれぞれ異なる色の可視光に変換
されるため、電力がら光への変換効率が高（低電力化が
可能である。According to the above configuration, there is no large loss due to color filters, and most of the ultraviolet light is converted into visible light of different colors, so the conversion efficiency from electric power to light is high (reduction in electric power is possible).
また、カラー化が従来と異なる原理によるため、表示し
た時の色が美しく、大変幻想的なカラー表示が得られる
。Furthermore, since the colorization is based on a principle different from conventional ones, the colors when displayed are beautiful and a very fantastic color display can be obtained.
面構造の概念図である。It is a conceptual diagram of a surface structure.
１・・・・・・・・・・・・・・・液晶表示パネル２・
・・・・・・・・・・・・・・紫外線カツトフィルム３
Ａ−５０・・・螢光物質
４・・・・・°・・・・・・・・・ランプ５、・・・・
・・・・・・・・・・紫外光以上1・・・・・・・・・・・・・・・Liquid crystal display panel 2・
・・・・・・・・・・・・・・・UV cut film 3
A-50...Fluorescent substance 4...°...Lamp 5,...
・・・・・・・・・More than ultraviolet light
Claims (1)
表示を行なう表示装置において、ランプが可視光よりも
紫外光を多く発する特性であること、前記紫外光により
螢光を発する材料をランプから表示パネルに至る光の経
路の間に配置すること、および、表示領域に応じて螢光
色の異なる複数の螢光材料を用いることを特徴とする表
示装置。In a display device that irradiates light from the back of a display panel and performs display using the transmitted light, the lamp has a characteristic of emitting more ultraviolet light than visible light, and the lamp displays a material that emits fluorescence due to the ultraviolet light. A display device characterized in that it is disposed between a light path leading to a panel, and that a plurality of fluorescent materials having different fluorescent colors depending on the display area are used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2217730A JPH04100084A (en) | 1990-08-18 | 1990-08-18 | display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2217730A JPH04100084A (en) | 1990-08-18 | 1990-08-18 | display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04100084A true JPH04100084A (en) | 1992-04-02 |
Family
ID=16708846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2217730A Pending JPH04100084A (en) | 1990-08-18 | 1990-08-18 | display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04100084A (en) |
-
1990
- 1990-08-18 JP JP2217730A patent/JPH04100084A/en active Pending
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