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Electroluminescent device

Assignee: Alps Alpine Co Ltd
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Filing: 1990-10-02
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Granted: 1992-07-21
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Expires: 2010-10-02
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Abstract

Abstract An electroluminescent device incorporating; a transparent electrode, a plurality of counter electrodes formed opposite to the transparent electrode, local fluorescent layers formed between the transparent electrode and the counter electrodes in a predetermined arrangement corresponding to that of the counter electrodes, and a dielectric layer formed between the transparent electrodes and the counter electrodes; wherein the local fluorescent layers are made selectively to emit light by selectively applying ac electric fields between the transparent electrode and the counter electrodes, and insulating film having one side provided with a wiring lines arranged in a predetermined wiring pattern and the other side coated with an adhesive film is applied to the dielectric layer underlying the counter eletrodes with the adhesive film in contact with the counter electrodes, and the counter electrodes are connected electrically to the corresponding wiring lines with a conductive material filling through holes formed in the insulating film, respectively.

Inventors

  • 👤 Toru Mathumoto

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 02:02
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/10

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 101 words
A method for manufacturing an electroluminescent device comprising in sequence the steps of: (1) forming a plurality of fluorescent layers on a transparent electrode by a screen printing; (2) forming a dielectric layer on said plurality of fluorescent layers; (3) forming a plurality of counter electrodes corresponding to said plurality of fluorescent layers on said dielectric layer by a printing operation; (4) adhering an insulation film having a plurality of holes formed thereon said plurality of counter electrode layers by an adhesive agent; and (5) forming conductive paths between said plurality of counter electrodes and a wiring pattern by printing conductors.
Claim 2
Independent Claim 101 words
A method for manufacturing an electroluminescent device comprising in sequence the steps of: (1) forming a plurality of fluorescent layers on a transparent electrode by a screen printing; (2) forming a dielectric layer on said plurality of fluorescent layers; (3) forming a plurality of counter electrodes corresponding to said plurality of fluorescent layers on said dielectric layer by a printing operation; (4) adhering an insulation film having a plurality of holes formed thereon said plurality of counter electrode layers by an adhesive agent; and (5) forming conductive paths between said plurality of counter electrodes and a wiring pattern by printing conductors.
Claim 3
Dependent Claim 39 words
The method of claim 1 wherein step (4) of the sequence comprises: (4) adhering an insulation film having a wiring pattern and a plurality of holes formed thereon on said plurality of counter electrode layers by an adhesive agent.

References Cited (Backward Citations)

US3312852A Cited
US3514825A Cited
US3504214A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-07-21 1996-01-20 1996-07-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-07-21 2000-01-20 2000-07-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-07-21 2004-01-20 2004-07-21 $7700.00 Window Closed / Lapsed

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