US4342945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent thin film device
Assignee: Boeing North American Inc
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Filing: 1980-05-20
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Granted: 1982-08-03
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Expires: 2000-05-20
Abstract
Abstract Disclosed is an electrode for use with thin film devices. An active matrix display incorporating the electrode includes a thin film electroluminescent emitter, an upper dielectric layer deposited on an upper surface of the film, a lower dielectric layer deposited on a lower surface of the film, a plurality of parallel, transparent upper electrodes disposed on the upper dielectric layer, a plurality of parallel lower electrodes disposed on the lower dielectric layer, each lower electrode including an energizing strip disposed sufficiently close to the lower surface to activate the film in conjunction with the upper electrodes, and a coupling strip, spaced sufficiently from the film to resist the effects of electrical breakdown in the film, for connecting the lower electrode to an external component. The display further includes an insulating strip of photoresist separating the coupling strip of each lower electrode from the film and a transparent substrate disposed over the upper electrodes.
Inventors
- 👤 Richard D. Ketchpel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:07
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/22
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
92 words
In a thin film electrical device, including a thin electroluminescent film, a plurality of parallel first electrodes on a first side of said film, and a plurality of parallel second electrodes on a second side of said film, each said first electrode comprising: an energizing portion disposed sufficiently close to a first surface of said film to activate said film upon the application of an electrical potential between said first and second electrodes; and a coupling portion, spaced sufficiently from said film to resist the effects of electrical breakdown in said film.
Claim 2
Dependent Claim
92 words
In a thin film electrical device, including a thin electroluminescent film, a plurality of parallel first electrodes on a first side of said film, and a plurality of parallel second electrodes on a second side of said film, each said first electrode comprising: an energizing portion disposed sufficiently close to a first surface of said film to activate said film upon the application of an electrical potential between said first and second electrodes; and a coupling portion, spaced sufficiently from said film to resist the effects of electrical breakdown in said film.
Claim 3
Dependent Claim
24 words
The device of claim 1, further comprising an insulating layer disposed on said first surface and spacing each coupling portion from said first surface.
Claim 4
Dependent Claim
34 words
The device of claim 2, further comprising: a first dielectric layer disposed between said first surface and said first electrodes; and a second dielectric layer disposed between said second side and said second electrodes.
Claim 5
Dependent Claim
98 words
An active matrix display, comprising: a thin film electroluminescent emitter; a plurality of parallel, transparent upper electrodes disposed on an upper side of said film; and a plurality of parallel lower electrodes disposed on a lower side of said film and perpendicular to said upper electrodes, each lower electrode including an energizing strip disposed sufficiently close to said lower side to activate said film upon the application of an electrical potential between a lower electrode and an upper electrode, and a coupling strip, spaced sufficiently from said film to resist the effects of electrical breakdown in said film.
Claim 6
Dependent Claim
98 words
An active matrix display, comprising: a thin film electroluminescent emitter; a plurality of parallel, transparent upper electrodes disposed on an upper side of said film; and a plurality of parallel lower electrodes disposed on a lower side of said film and perpendicular to said upper electrodes, each lower electrode including an energizing strip disposed sufficiently close to said lower side to activate said film upon the application of an electrical potential between a lower electrode and an upper electrode, and a coupling strip, spaced sufficiently from said film to resist the effects of electrical breakdown in said film.
Claim 7
Dependent Claim
21 words
The display of claim 4, further comprising an insulating strip separating the coupling strip of each lower electrode from said film.
Claim 8
Dependent Claim
11 words
The display of claim 5, wherein said insulating strips comprise photoresist.
Claim 9
Dependent Claim
15 words
The display of claim 4, further comprising a transparent substrate disposed over said upper electrodes.
Claim 10
Dependent Claim
32 words
The display of claim 7, further comprising: an upper dielectric layer deposited on an upper surface of said film; and a lower dielectric layer deposited on a lower surface of said film.
Claim 11
Dependent Claim
135 words
An active matrix display, comprising: a thin film electroluminescent emitter; an upper dielectric layer deposited on an upper surface of said film; a lower dielectric layer deposited on a lower surface of said film; a plurality of parallel, transparent upper electrodes disposed on said upper dielectric layer; a plurality of parallel lower electrodes disposed on said lower dielectric layer, each lower electrode including an energizing strip disposed sufficiently close to said surface to activate said film upon the application of an electrical potential between a lower electrode and an upper electrode, and a coupling strip, spaced sufficiently from said film to resist the effects of electrical breakdown in said film; an insulating strip of photoresist separating the coupling strip of each lower electrode from said film; and a transparent substrate disposed over said upper electrodes.
Claim 12
Dependent Claim
135 words
An active matrix display, comprising: a thin film electroluminescent emitter; an upper dielectric layer deposited on an upper surface of said film; a lower dielectric layer deposited on a lower surface of said film; a plurality of parallel, transparent upper electrodes disposed on said upper dielectric layer; a plurality of parallel lower electrodes disposed on said lower dielectric layer, each lower electrode including an energizing strip disposed sufficiently close to said surface to activate said film upon the application of an electrical potential between a lower electrode and an upper electrode, and a coupling strip, spaced sufficiently from said film to resist the effects of electrical breakdown in said film; an insulating strip of photoresist separating the coupling strip of each lower electrode from said film; and a transparent substrate disposed over said upper electrodes.
References Cited (Backward Citations)
US2874308A
Cited
US2919366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-08-02 | 1986-02-01 | 1986-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-02 | 1990-02-01 | 1990-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-02 | 1994-02-01 | 1994-08-03 | $7700.00 | Window Closed / Lapsed |