Electroluminescent light element having a transparent electrode formed by a paste material which provides uniform illumination
First Claim
1. An electroluminescent lighting element comprising:
- an insulating transparent film serving as a base material integrally formed with an external connecting terminal;
a transparent electrode layer of a predetermined pattern printed on a surface of said insulating transparent film other than said external connecting terminal to define a predetermined light-emitting region being offset from said external connecting terminal;
a light-emitting layer of a predetermined pattern printed on said transparent electrode layer as a light-emitting member corresponding to said light-emitting region;
a dielectric layer of a predetermined pattern printed on said light-emitting layer;
a back-surface electrode layer of a predetermined pattern printed on said dielectric layer;
a first collecting electrode layer printed in a predetermined pattern having one end connected to said back-surface electrode layer and the other end constituting part of said external connecting terminal of said insulating transparent film;
a second collecting electrode layer printed in a predetermined pattern having one end connected to said transparent electrode layer and the other end constituting part of said external connecting terminal of said insulating transparent film; and
an insulating coat layer printed in a predetermined pattern so as to cover a surface of said electroluminescent lighting element except for said external connecting terminal.
1 Assignment
0 Petitions
Accused Products
Abstract
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 an 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-gain 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.
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Citations
6 Claims
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1. An electroluminescent lighting element comprising:
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an insulating transparent film serving as a base material integrally formed with an external connecting terminal; a transparent electrode layer of a predetermined pattern printed on a surface of said insulating transparent film other than said external connecting terminal to define a predetermined light-emitting region being offset from said external connecting terminal; a light-emitting layer of a predetermined pattern printed on said transparent electrode layer as a light-emitting member corresponding to said light-emitting region; a dielectric layer of a predetermined pattern printed on said light-emitting layer; a back-surface electrode layer of a predetermined pattern printed on said dielectric layer; a first collecting electrode layer printed in a predetermined pattern having one end connected to said back-surface electrode layer and the other end constituting part of said external connecting terminal of said insulating transparent film; a second collecting electrode layer printed in a predetermined pattern having one end connected to said transparent electrode layer and the other end constituting part of said external connecting terminal of said insulating transparent film; and an insulating coat layer printed in a predetermined pattern so as to cover a surface of said electroluminescent lighting element except for said external connecting terminal. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification