JPS58150294A - Dispersion electric field light emitting element using fluorescent powder coated - Google Patents
Dispersion electric field light emitting element using fluorescent powder coatedInfo
- Publication number
- JPS58150294A JPS58150294A JP57033564A JP3356482A JPS58150294A JP S58150294 A JPS58150294 A JP S58150294A JP 57033564 A JP57033564 A JP 57033564A JP 3356482 A JP3356482 A JP 3356482A JP S58150294 A JPS58150294 A JP S58150294A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent powder
- light emitting
- electric field
- emitting element
- powder coated
- 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
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】 本発明は分散形電界発光素子の発光層に関する。[Detailed description of the invention] The present invention relates to a light emitting layer of a distributed electroluminescent device.
従来の分散形電界発光素子の発光層は、螢光粉体を適当
な樹脂や無機物質などの媒質中に単に分散して構成され
ていたために素子の寿命が短かいという欠点があった。The light-emitting layer of a conventional dispersion type electroluminescent device is constructed by simply dispersing fluorescent powder in a medium such as a suitable resin or an inorganic substance, which has the disadvantage that the device has a short lifespan.
本発明の目的はそれぞれの螢光粉体の表面に保護のだめ
の被覆処理を施すことにより上記の欠点をなくすことに
ある。The object of the present invention is to eliminate the above-mentioned drawbacks by applying a protective coating to the surface of each fluorescent powder.
以下に実施例を図面にもとづいて詳細に説明する。第１
図に被覆処理された粉体の断面図を示す。螢光粉体１の
表面に保護のだめの皮膜２を被覆する。皮膜２は、例え
ば窒化けい素、酸化けい素、酸化イツトリウム、チタン
酸バリウムなどのようなち密な絶縁体でかつ螢光粉体１
からの光を透過し得るような皮膜である。このような皮
膜２を被覆することにより外部から水分子や各種イオン
が螢光粉体１へ侵入するのを防止できるとともに、螢光
粉体１自身の昇華や分離々とによる変質をも防止できる
ので皮膜２がないときにくらべて螢光粉体１の寿命を延
長できる。保護をより完全なものとするだめにさらに他
の保護皮膜３を被覆して２層以上の多層構造の皮膜とし
てもよい。Examples will be described in detail below based on the drawings. 1st
The figure shows a cross-sectional view of the coated powder. The surface of the fluorescent powder 1 is coated with a protective film 2. The coating 2 is made of a dense insulator such as silicon nitride, silicon oxide, yttrium oxide, barium titanate, etc., and is coated with the fluorescent powder 1.
It is a film that allows light to pass through. By covering the fluorescent powder 1 with such a film 2, it is possible to prevent water molecules and various ions from entering the fluorescent powder 1 from the outside, and it is also possible to prevent the fluorescent powder 1 itself from deteriorating due to sublimation or separation. Therefore, the life of the fluorescent powder 1 can be extended compared to when there is no coating 2. In order to make the protection more complete, another protective film 3 may be further coated to form a multilayer structure of two or more layers.
第２図は第１図のような被覆処理された粉体１０を用い
た分散形電界発光素子の断面図である。１１は樹脂や無
機物質などの媒質であり、１２は電極である。FIG. 2 is a cross-sectional view of a dispersed electroluminescent device using the coated powder 10 as shown in FIG. 11 is a medium such as a resin or an inorganic substance, and 12 is an electrode.
第１図は本発明による被覆処理された螢光粉体の一実施
例を示す図であり、第２図はこのような螢光粉体を用い
た分散形電界発光素子の一実施例を示す図である。
（３）
築上図
笥２図FIG. 1 shows an embodiment of a coated fluorescent powder according to the present invention, and FIG. 2 shows an embodiment of a dispersed electroluminescent device using such a fluorescent powder. It is a diagram. (3) 2 drawings of construction drawings
Claims (1)
いることを特徴とした分散形電界発光素子(1) Dispersed electroluminescent device characterized by using fluorescent powder coated with a protective film
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57033564A JPS58150294A (en) | 1982-03-03 | 1982-03-03 | Dispersion electric field light emitting element using fluorescent powder coated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57033564A JPS58150294A (en) | 1982-03-03 | 1982-03-03 | Dispersion electric field light emitting element using fluorescent powder coated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58150294A true JPS58150294A (en) | 1983-09-06 |
Family
ID=12390036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57033564A Pending JPS58150294A (en) | 1982-03-03 | 1982-03-03 | Dispersion electric field light emitting element using fluorescent powder coated |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58150294A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63318092A (en) * | 1987-06-19 | 1988-12-26 | Stanley Electric Co Ltd | Structure of el element |
| WO2015064046A1 (en) * | 2013-11-01 | 2015-05-07 | パナソニックＩｐマネジメント株式会社 | Wavelength conversion particle, method for producing same, wavelength conversion member, and light-emitting device |
| JP2020019921A (en) * | 2018-02-06 | 2020-02-06 | 信越化学工業株式会社 | Phosphor particle |
-
1982
- 1982-03-03 JP JP57033564A patent/JPS58150294A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63318092A (en) * | 1987-06-19 | 1988-12-26 | Stanley Electric Co Ltd | Structure of el element |
| WO2015064046A1 (en) * | 2013-11-01 | 2015-05-07 | パナソニックＩｐマネジメント株式会社 | Wavelength conversion particle, method for producing same, wavelength conversion member, and light-emitting device |
| JP2020019921A (en) * | 2018-02-06 | 2020-02-06 | 信越化学工業株式会社 | Phosphor particle |
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