US3564136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent television display panel
Assignee: Calspan Corp
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Filing: 1968-06-10
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Granted: 1971-02-16
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Expires: 1988-06-10
Abstract
Abstract A electroluminescent display panel having trigger cells optically aligned with photoconductors that are connected in series with display electroluminescent cells. A scanner controls the application of a video signal to the trigger cells, which in turn actuate the display cells. Feedback can be provided to increase the decay time of the photoconductors.
Inventors
- 👤 Alexander S Gilmour Jr
- 👤 Thomas L Robinson Sr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:28
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/14
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
76 words
An electroluminescent display apparatus, comprising; a. a plurality of display electroluminescent cells comprising substantially coplanar electrodes with electroluminescent phosphor therebetween, b. photosensitive means series-connected to each one of said display cells, c. a plurality of substantially coplanar trigger electroluminescent cells comprising spaced coplanar electrodes with electroluminescent phosphor therebetween, each trigger cell optically aligned with a separate one of said photosensitive means, and c. means operative to select predetermined ones of said trigger cells to emit radiation.
Claim 2
Dependent Claim
76 words
An electroluminescent display apparatus, comprising; a. a plurality of display electroluminescent cells comprising substantially coplanar electrodes with electroluminescent phosphor therebetween, b. photosensitive means series-connected to each one of said display cells, c. a plurality of substantially coplanar trigger electroluminescent cells comprising spaced coplanar electrodes with electroluminescent phosphor therebetween, each trigger cell optically aligned with a separate one of said photosensitive means, and c. means operative to select predetermined ones of said trigger cells to emit radiation.
Claim 3
Dependent Claim
63 words
The apparatus according to claim 1, wherein; e. said plurality of trigger electroluminescent cells each have a terminal connected to a horizontal conductor and a terminal connected to a vertical conductor, and f. said means operative comprises scanners connected to each of said horizontal and vertical conductors for allowing an input video signal to be sequentially impressed across selected horizontal and vertical conductors.
Claim 4
Dependent Claim
24 words
The apparatus according to claim 2, wherein; g. said photosensitive means are subsTantially coplanar with each other and with each of said display cells.
Claim 5
Dependent Claim
30 words
The apparatus according to claim 2, wherein; g. each of said display cells have a portion thereof that is optically aligned with a portion of the photosensitive means associated therewith.
Claim 6
Dependent Claim
24 words
The apparatus according to claim 1, wherein; e. said photosensitive means are substantially coplanar with each other and with each of said display cells.
Claim 7
Dependent Claim
30 words
The apparatus according to claim 1, wherein; e. each of said display cells have a portion thereof that is optically aligned with a portion of the photosensitive means associated therewith.
Claim 8
Dependent Claim
124 words
An electroluminescent display apparatus, comprising; a. a plurality of spaced parallel horizontal conductors, b. a plurality of spaced parallel vertical conductors arranged substantially at right angles to said horizontal conductors and in intersecting relationship therewith, c. a plurality of trigger electroluminescent cells, each connected across one of said horizontal conductors and one of said vertical conductors in the vicinity of the intersection thereof, said cells comprising spaced coplanar electrodes with electroluminescent phosphor therebetween, d. a plurality of photosensitive strips each having separate portions that are optically aligned with separate ones of said trigger electroluminescent cells, and e. a plurality of display electroluminescent cells each series-connected to said separate portions of said photosensitive strips, said display cells comprising substantially coplanar electrodes with electroluminescent phosphor therebetween.
Claim 9
Dependent Claim
124 words
An electroluminescent display apparatus, comprising; a. a plurality of spaced parallel horizontal conductors, b. a plurality of spaced parallel vertical conductors arranged substantially at right angles to said horizontal conductors and in intersecting relationship therewith, c. a plurality of trigger electroluminescent cells, each connected across one of said horizontal conductors and one of said vertical conductors in the vicinity of the intersection thereof, said cells comprising spaced coplanar electrodes with electroluminescent phosphor therebetween, d. a plurality of photosensitive strips each having separate portions that are optically aligned with separate ones of said trigger electroluminescent cells, and e. a plurality of display electroluminescent cells each series-connected to said separate portions of said photosensitive strips, said display cells comprising substantially coplanar electrodes with electroluminescent phosphor therebetween.
Claim 10
Dependent Claim
20 words
The apparatus according to claim 7, further comprising, f. scanning means connected to each of said horizontal and vertical conductors.
Claim 11
Dependent Claim
31 words
The apparatus according to claim 8, wherein; g. a portion of each of said display cells is optically aligned with an area of said portion of said photosensitive element associated therewith.
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |