JPS58194082A - Light emitting apparatus - Google Patents

Light emitting apparatus

Info

Publication number
JPS58194082A
JPS58194082A JP57078864A JP7886482A JPS58194082A JP S58194082 A JPS58194082 A JP S58194082A JP 57078864 A JP57078864 A JP 57078864A JP 7886482 A JP7886482 A JP 7886482A JP S58194082 A JPS58194082 A JP S58194082A
Authority
JP
Japan
Prior art keywords
light emitting
electroluminescent
display
emitting apparatus
light
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
Application number
JP57078864A
Other languages
Japanese (ja)
Inventor
渡辺　善昭
政則 藤田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seikosha KK
Original Assignee
Seikosha KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seikosha KK filed Critical Seikosha KK
Priority to JP57078864A priority Critical patent/JPS58194082A/en
Publication of JPS58194082A publication Critical patent/JPS58194082A/en
Pending legal-status Critical Current

Links

Landscapes

  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (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】 本発明は発光装置に関するものである。[Detailed description of the invention] The present invention relates to a light emitting device.

従来より電極間にエレクトロルミネッセンス層を形成し
、電極間に電圧を印加して発光させるものがあり、これ
を液晶表示装置等の裏側に配して反射板と夜間の照明を
兼用させた表示装置等が考えられている。Conventionally, there have been devices in which an electroluminescent layer is formed between electrodes and a voltage is applied between the electrodes to emit light, and this is placed on the back side of a liquid crystal display device, etc. to serve as a reflector and night illumination device. etc. are being considered.

しかしエレクトロルミネッセンスの発光層は黄色から淡
緑色系に着色されているので、外光の反射効率が悪く、
このために昼間においては表示面が暗くなるという欠点
があった。However, since the electroluminescent light-emitting layer is colored from yellow to pale green, the reflection efficiency of external light is poor.
For this reason, there was a drawback that the display surface became dark during the daytime.

本発明においては上記従来の欠点を除去するもので、エ
レクトロルミネッセンス材料の中に反射物質を混入させ
ることにより、エレクトロルミネッセンス層を発光層と
しての機能に加えて明るい反射板としての機能を兼ねる
ように構成し、液晶表示装置等の裏側に配して夜間はも
ちろんのこと昼間においても反射効率が良くコントラス
トの良好な見易い表示ができるような反射板兼用の発光
装置を提供するものである。The present invention eliminates the above-mentioned conventional drawbacks, and by mixing a reflective substance into the electroluminescent material, the electroluminescent layer can function not only as a light emitting layer but also as a bright reflector. To provide a light emitting device which also functions as a reflector and can be arranged on the back side of a liquid crystal display device or the like to provide easy-to-see display with good reflection efficiency and contrast not only at night but also during the day.

本発明の一実施例について説明する。背面電極１と前面
の透明電極２との間にエレクトロルミネッセンス層３が
設けである。エレクトロルミネッセンス層６はエレクト
ロルミネッセンス材料４の中に反射物質５を混入させて
なるものである。反射物質５はたとえばアルミナ、ガラ
ス、ポリエステルなどのプラスチックからなるビーズで
形成しである。背面側１の背後には防湿性を有する基板
６を設けてあり、透明電極２の前面には防湿シート７が
設けである。An embodiment of the present invention will be described. An electroluminescent layer 3 is provided between the back electrode 1 and the front transparent electrode 2. The electroluminescent layer 6 is formed by mixing a reflective substance 5 into the electroluminescent material 4. The reflective material 5 is formed of beads made of plastic such as alumina, glass, or polyester. A moisture-proof substrate 6 is provided behind the back side 1, and a moisture-proof sheet 7 is provided in front of the transparent electrode 2.

防湿ンート７の前面には表示パネル８を配置してもよい
。たとえば表示文字を不透明物質で記した表示シートを
貼着してもよく、また液晶やエレクトロクロミンクなど
の非発光型表示素子を配設してもよい。あるいは特定の
壁面に貼着して壁面自体を発光表示するものとしてもよ
い。A display panel 8 may be arranged in front of the moisture-proof compartment 7. For example, a display sheet with display characters written on it using an opaque material may be attached, or a non-emissive display element such as a liquid crystal or an electrochromic display element may be provided. Alternatively, it may be attached to a specific wall surface so that the wall surface itself emits light.

したがって背面電極１と透明電極２との間に電圧を印加
すると、エレクトロルミネッセンス材料４が発光する。Therefore, when a voltage is applied between the back electrode 1 and the transparent electrode 2, the electroluminescent material 4 emits light.

このために夜間では、その前面の表示シー）・、表示素
子などの表示パネル８の表示文字を照らし、あるいは壁
面全体を発光させる。For this reason, at night, the display panel 8 (display panel 8) on the front side is illuminated, or the entire wall surface is illuminated.

昼間においては、外光が表示シートおよび表示素子の光
透過部分を通過した光が反射物質５で反射して再び外へ
出るので、表示文字はその周即とのコントラストが鮮か
で、見易くなり、あるいは壁面に照射された外光が反射
物質５で反射するので、暗い面が明るい面になる。During the daytime, external light passes through the display sheet and the light-transmitting portion of the display element and is reflected by the reflective material 5 and goes out again, so the displayed characters have a sharp contrast with their surroundings and are easy to see. Alternatively, the external light irradiated onto the wall surface is reflected by the reflective material 5, so that the dark surface becomes a bright surface.

さらに反射物質５全均一な直径の球状と１７で一層に並
べることにより、エレクトロルミネッセンス層３の厚さ
を均一とし、均一な発光面に制御でき、また発光面積が
減るので消費電力も少くなる。Further, by arranging the reflective materials 5 in a single layer with spherical shapes 17 having uniform diameters, the thickness of the electroluminescent layer 3 can be made uniform, and the light emitting surface can be controlled to be uniform, and power consumption is also reduced because the light emitting area is reduced.

このように本発明によれば、エレク）・ロルミネノセン
ス材料の中に反射物質を混入させてエレクトロルミネッ
センス層を形成しているので、発光層であるとともに反
射板としての機能を有し、夜間はもらろんのこと昼間に
おいてもコントラストの良い見易い表示ができる。As described above, according to the present invention, since the electroluminescent layer is formed by mixing a reflective substance into the electroluminescent material, it functions as a light emitting layer as well as a reflecting plate. Not only can the display be displayed at night, but it can also be displayed with good contrast during the day.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の一実施例を示す断面図である。 １・・・・・・背面電極　　　　２・・・・・・前面Ｎ
極６・・・・−エレクトロルミネッセンス層４　・・エ
レクトロルミネッセンス材料５・・・・・・反射物質 以　　　に 出願人　　株式会社　精　工　舎 ６１４′The drawing is a sectional view showing an embodiment of the present invention. 1...Back electrode 2...Front N
Pole 6...-Electroluminescent layer 4...Electroluminescent material 5...Reflective material Applicant Seikosha Co., Ltd. 614'

Claims (1)

【特許請求の範囲】[Claims] 対向する電極間に、反射物質を混入させたエレクトロル
ミネッセンス層を設けたことを特徴とする発光装置。A light emitting device characterized in that an electroluminescent layer mixed with a reflective substance is provided between opposing electrodes.
JP57078864A 1982-05-10 1982-05-10 Light emitting apparatus Pending JPS58194082A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57078864A JPS58194082A (en) 1982-05-10 1982-05-10 Light emitting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57078864A JPS58194082A (en) 1982-05-10 1982-05-10 Light emitting apparatus

Publications (1)

Publication Number Publication Date
JPS58194082A true JPS58194082A (en) 1983-11-11

Family

ID=13673686

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57078864A Pending JPS58194082A (en) 1982-05-10 1982-05-10 Light emitting apparatus

Country Status (1)

Country Link
JP (1) JPS58194082A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810481B2 (en) * 1980-02-29 1983-02-25 オカモト株式会社 Synthetic resin glove molding method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810481B2 (en) * 1980-02-29 1983-02-25 オカモト株式会社 Synthetic resin glove molding method

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