发明名称 |
Electroluminescent lighting 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). <IMAGE> |
申请公布号 |
EP0753985(B1) |
申请公布日期 |
2000.03.01 |
申请号 |
EP19960305101 |
申请日期 |
1996.07.11 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
TANABE, KOJI;CHIKAHISA, YOSUKE;IKOMA, HEIJI;OHARA, MASAHIRO;KUWAHARA, MASARU |
分类号 |
H01H13/702;H05B33/00;H05B33/10;H05B33/12;H05B33/28;(IPC1-7):H05B33/10 |
主分类号 |
H01H13/702 |
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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