Patent US3735182A successfully refreshed from Google Patents.
US3735182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gray scale gas panel
Assignee: International Business Machines Corp
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Filing: 1972-07-12
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Granted: 1973-05-22
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Expires: 1992-07-12
Abstract
Abstract An improved gaseous discharge display arrangement is disclosed for providing a gray scale display capability with nominal modification of existing gaseous display apparatus. Conductor patterns of different resolution are utilized in the conductor drive configurations which are positioned on opposite sides of the panel in a conventional gaseous panel construction. By controlling the selective energization of the higher resolution lines associated with one of the driving configurations, a variation of intensities is provided depending on the ratio of the resolutions and the number of higher resolution conductors selected for each of the lower resolution conductors.
Inventors
- 👤 J Dalton
- 👤 M Skolnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:26
CPC Classifications
H; H01; H01J; H01J11/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
164 words
A gaseous discharge display device for providing a variable intensity display comprising in combination a pair of support plates sealed to form a chamber filled with an ionizable gas, said plates having dielectrically coated conductor arrays formed thereon, each of said conductor arrays comprising a plurality of parallel conductors, said conductor arrays being substantially orthogonally related to define discrete gas discharge sites at respective intersections thereof, said gas discharge sites being adapted when appropriately energized by control signals applied thereto to provide discrete localized discharges, the light emitted from each such discharge site forming one element of a display, said conductor arrays being characterized by higher and lower line resolutions, the intersections of a plurality of said higher resolution lines with each of the lower resolution lines defining a gas cell area, the intensity of the light output from each said gas cell area being varied in accordance with the number of higher resolution lines selected with respect to each said lower resolution lines.
Claim 2
Dependent Claim
164 words
A gaseous discharge display device for providing a variable intensity display comprising in combination a pair of support plates sealed to form a chamber filled with an ionizable gas, said plates having dielectrically coated conductor arrays formed thereon, each of said conductor arrays comprising a plurality of parallel conductors, said conductor arrays being substantially orthogonally related to define discrete gas discharge sites at respective intersections thereof, said gas discharge sites being adapted when appropriately energized by control signals applied thereto to provide discrete localized discharges, the light emitted from each such discharge site forming one element of a display, said conductor arrays being characterized by higher and lower line resolutions, the intersections of a plurality of said higher resolution lines with each of the lower resolution lines defining a gas cell area, the intensity of the light output from each said gas cell area being varied in accordance with the number of higher resolution lines selected with respect to each said lower resolution lines.
Claim 3
Dependent Claim
23 words
Apparatus of the type claimed in claim 1 wherein said higher resolution conductor array is on the viewing side of said display device.
Claim 4
Dependent Claim
23 words
Apparatus of the type claimed in claim 2 wherein said variable intensity display comprises a gaseous discharge display device having gray scale capability.
Claim 5
Dependent Claim
125 words
In a gaseous discharge pulsing display panel apparatus including a gaseous medium in the chamber of said display panel, dielectric coated conductor arrays forming the inner wall of said chamber whereby said conductors are insulated from direct contact with said gas, said conductor arrays being positioned in substantially orthogonal relationship, the interseCtions of pairs of said conductors when appropriately energized defining display points, said conductor arrays being comprised of different line resolutions wherein each lower resolution line has a plurality of higher resolution lines associated therewith to selectively control the resultant display intensity at cell areas in accordance with the number of higher resolution lines energized, each said cell area comprising the intersection of a low resolution line with a plurality of higher resolution lines.
Claim 6
Dependent Claim
125 words
In a gaseous discharge pulsing display panel apparatus including a gaseous medium in the chamber of said display panel, dielectric coated conductor arrays forming the inner wall of said chamber whereby said conductors are insulated from direct contact with said gas, said conductor arrays being positioned in substantially orthogonal relationship, the interseCtions of pairs of said conductors when appropriately energized defining display points, said conductor arrays being comprised of different line resolutions wherein each lower resolution line has a plurality of higher resolution lines associated therewith to selectively control the resultant display intensity at cell areas in accordance with the number of higher resolution lines energized, each said cell area comprising the intersection of a low resolution line with a plurality of higher resolution lines.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |