Patent US4112466A successfully refreshed from Google Patents.
US4112466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flat television screen
Assignee: Individual
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Filing: 1976-06-11
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Granted: 1978-09-05
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Expires: 1996-06-11
Abstract
Abstract A television screen comprising an electroluminescent sheet sandwiched with electroconductive sheets. Electrical pulse signals responsive to a horizontal sweep input are applied to the sides of two of the electroconductive sheets, and pulse signals responsive to a vertical sweep input are applied to the top and bottom of two of the electroconductive sheets. The pulses are modulated with the video input. The signals propagating across the sheets produce a dot at the intersection point, which moves in accordance with the pattern of the sweep signals to produce a video picture.
Inventors
- 👤 Donald J. Bendiks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:08
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
234 words
A television apparatus comprising: a plurality of sheets in planular juxtaposition, at least one of said sheets being an electroluminescent sheet, and other of said sheets being electroconductive sheets and electrically resistant sheets, means responsive to a horizontal sweep input to apply electrical pulse signals to propagate horizontally through two of said electroconductive sheets so that in one sheet the electrical pulse signals propagate from left to right and in the other from right to left, means responsive to a vertical sweep input to apply electrical pulse signals to propagate vertically through two of said electroconductive sheets so that in one sheet the electrical pulse signals propagate from top to bottom and in the other from bottom to top, means to modulate said electrical pulse signals with a video input, so that said electroluminescent sheet produces an electroluminescent dot at a point where the horizontal and vertical pulse signals intersect while propagating through the electroconductive sheets, said electroluminescent sheet being interposed between two of said electroconductive sheets, and an electrically resistant sheet being interposed between each of the remaining planular juxtaposed electroconductive sheets, said sheets having an order from first to last, one of said electroconductive sheets for horizontal signals, said electroluminescent sheet, the other electroconductive sheet for horizontal signals, an electrically resistant sheet, one of said electroconductive sheets for vertical signals, another electrically resistant sheet, and the other electroconductive sheet for vertical signals.
Claim 2
Dependent Claim
234 words
A television apparatus comprising: a plurality of sheets in planular juxtaposition, at least one of said sheets being an electroluminescent sheet, and other of said sheets being electroconductive sheets and electrically resistant sheets, means responsive to a horizontal sweep input to apply electrical pulse signals to propagate horizontally through two of said electroconductive sheets so that in one sheet the electrical pulse signals propagate from left to right and in the other from right to left, means responsive to a vertical sweep input to apply electrical pulse signals to propagate vertically through two of said electroconductive sheets so that in one sheet the electrical pulse signals propagate from top to bottom and in the other from bottom to top, means to modulate said electrical pulse signals with a video input, so that said electroluminescent sheet produces an electroluminescent dot at a point where the horizontal and vertical pulse signals intersect while propagating through the electroconductive sheets, said electroluminescent sheet being interposed between two of said electroconductive sheets, and an electrically resistant sheet being interposed between each of the remaining planular juxtaposed electroconductive sheets, said sheets having an order from first to last, one of said electroconductive sheets for horizontal signals, said electroluminescent sheet, the other electroconductive sheet for horizontal signals, an electrically resistant sheet, one of said electroconductive sheets for vertical signals, another electrically resistant sheet, and the other electroconductive sheet for vertical signals.
Claim 3
Dependent Claim
234 words
A television apparatus comprising: a plurality of sheets in planular juxtaposition, at least one of said sheets being an electroluminescent sheet, and other of said sheets being electroconductive sheets and electrically resistant sheets, means responsive to a horizontal sweep input to apply electrical pulse signals to propagate horizontally through two of said electroconductive sheets so that in one sheet the electrical pulse signals propagate from left to right and in the other from right to left, means responsive to a vertical sweep input to apply electrical pulse signals to propagate vertically through two of said electroconductive sheets so that in one sheet the electrical pulse signals propagate from top to bottom and in the other from bottom to top, means to modulate said electrical pulse signals with a video input, so that said electroluminescent sheet produces an electroluminescent dot at a point where the horizontal and vertical pulse signals intersect while propagating through the electroconductive sheets, said electroluminescent sheet being interposed between two of said electroconductive sheets, and an electrically resistant sheet being interposed between each of the remaining planular juxtaposed electroconductive sheets, said sheets having an order from first to last, one of said electroconductive sheets for vertical signals, said electroluminescent sheet, the other electroconductive sheet for vertical signals, an electrically resistant sheet, one of said electroconductive sheets for horizontal signals, another electrically resistant sheet, and the other electroconductive sheet for horizontal signals.
Claim 4
Dependent Claim
234 words
A television apparatus comprising: a plurality of sheets in planular juxtaposition, at least one of said sheets being an electroluminescent sheet, and other of said sheets being electroconductive sheets and electrically resistant sheets, means responsive to a horizontal sweep input to apply electrical pulse signals to propagate horizontally through two of said electroconductive sheets so that in one sheet the electrical pulse signals propagate from left to right and in the other from right to left, means responsive to a vertical sweep input to apply electrical pulse signals to propagate vertically through two of said electroconductive sheets so that in one sheet the electrical pulse signals propagate from top to bottom and in the other from bottom to top, means to modulate said electrical pulse signals with a video input, so that said electroluminescent sheet produces an electroluminescent dot at a point where the horizontal and vertical pulse signals intersect while propagating through the electroconductive sheets, said electroluminescent sheet being interposed between two of said electroconductive sheets, and an electrically resistant sheet being interposed between each of the remaining planular juxtaposed electroconductive sheets, said sheets having an order from first to last, one of said electroconductive sheets for vertical signals, said electroluminescent sheet, the other electroconductive sheet for vertical signals, an electrically resistant sheet, one of said electroconductive sheets for horizontal signals, another electrically resistant sheet, and the other electroconductive sheet for horizontal signals.
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) | 1981-09-04 | 1982-03-06 | 1982-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-04 | 1986-03-06 | 1986-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-04 | 1990-03-06 | 1990-09-05 | $7700.00 | Window Closed / Lapsed |