US4967117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encapsulated electroluminescence device
Assignee: Alps Alpine Co Ltd
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Filing: 1989-02-16
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Granted: 1990-10-30
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Expires: 2009-02-16
Abstract
Abstract An electroluminescence device having an excellent moisture-resistant property is disclosed. Such an electroluminescence device comprises a light emitting layer inserted between an opposite electrode and a transparent electrode to form a multi-layered structure, said structure being airtightly sealed by a pair of protective sheets and said ELD being able to be fitted to an external apparatus by means of a metal fixture. The ELD is characterized in that a metal composite film is formed by inserting a metal foil between a pair of resin films and is used for one of the protective sheets for said opposite electrode. The composite film having a notch which is formed by removing part of the metal foil around a portion of the metal composite film prepared to accommodate the metal fixture.
Inventors
- 👤 Kenji Yoshioka
- 👤 Yasuichi Ono
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:21
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/02; H05B33/04; H05B33/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
125 words
An electroluminescence device (ELD) comprising a light emitting layer inserted between an opposite electrode and a transparent electrode to form a multi-layered structure, said structure being airtightly sealed by a pair of protective sheets and said ELD being able to be fitted to an external apparatus by means of a metal fixture, wherein a metal composite film formed by inserting a metal foil between a pair of resin films s used for a first sheet of said pair of protective sheets over said opposite electrode, said metal composite film having a notch formed by removing part of said metal foil around a portion of said metal composite film prepared to accommodate said fixture, said notch being located near an edge of said metal composite film.
Claim 2
Dependent Claim
125 words
An electroluminescence device (ELD) comprising a light emitting layer inserted between an opposite electrode and a transparent electrode to form a multi-layered structure, said structure being airtightly sealed by a pair of protective sheets and said ELD being able to be fitted to an external apparatus by means of a metal fixture, wherein a metal composite film formed by inserting a metal foil between a pair of resin films s used for a first sheet of said pair of protective sheets over said opposite electrode, said metal composite film having a notch formed by removing part of said metal foil around a portion of said metal composite film prepared to accommodate said fixture, said notch being located near an edge of said metal composite film.
Claim 3
Dependent Claim
34 words
An electroluminescence device according to claim 1, wherein one of the pair of resin films and said metal foil of said metal composite film over said opposite electrode are half-cut to form the notch.
Claim 4
Dependent Claim
49 words
An electroluminescence device according to claim 1, wherein the notch is formed by press-cutting said portion of said metal composite film and a second sheet of said pair of protective sheets, said second sheet for protecting the transparent electrode, the notch including a bore for accommodating said metal fixture.
Claim 5
Dependent Claim
24 words
An electroluminescence device according to claim 2 wherein the periphery of said metal composite film is rigidly bonded to the pair of resin films.
Claim 6
Dependent Claim
28 words
An electroluminescence device according to claim 3 wherein the periphery of said metal composite film is rigidly bonded to said second sheet of said pair of protective sheets.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-29 | 1994-04-30 | 1994-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-29 | 1998-04-30 | 1998-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-29 | 2002-04-30 | 2002-10-30 | $7700.00 | Window Closed / Lapsed |