发明名称 |
Electroluminescent light element, manufacturing method of the same, and an illuminated switch unit using the same |
摘要 |
All of a transparent electrode layer 2, a light-emitting layer 3, a dielectric layer 4, a back-surface electrode 5, collecting electrodes 5a, 5b, and an insulating coat layer 6 are laminated with predetermined patterns by screen printing on a insulating transparent film 1. Conductive paste used for forming transparent electrode layer 2 comprises conductive powder of indium oxide which contains needle-like powder (A) and fine-grain powder (B) at a blending ratio of (A):(B)=100:0 to 20:80. A binder resin (D), being a photo-hardening or thermal-hardening resin, is mixed with the conductive powder (C) at a blending ratio of (C):(D)=45:55 to 95:5, thereby obtaining an excellent EL lighting element. In an illuminated switch unit, a switch operating projection 14 is provided on the reverse surface of an EL lighting element 15 and this EL lighting element 15 is fixed above a membrane switch 13 via a spacer 16, thereby removing any obstacles interrupting or intercepting illumination light emitted from EL lighting element 15.
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申请公布号 |
US5950808(A) |
申请公布日期 |
1999.09.14 |
申请号 |
US19970961775 |
申请日期 |
1997.10.31 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
TANABE, KOJI;OHARA, MASAHIRO;KUWAHARA, MASARU |
分类号 |
H01H13/02;H01H9/16;H01H13/52;H01H13/702;H05B33/10;H05B33/12;H05B33/28;(IPC1-7):H01H9/18 |
主分类号 |
H01H13/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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