Patent US3896327A successfully refreshed from Google Patents.
US3896327A
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US
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Monolithic gas discharge display device
Assignee: OI Glass Inc
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Filing: 1973-11-19
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Granted: 1975-07-22
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Expires: 1993-11-19
Abstract
Abstract There is disclosed a gas discharge device having an inherent memory wherein all electrically operative elements are formed on a common support substrate. The device comprises a monolithic panel structure in which the conductor arrays are created on a single substrate and wherein two or more arrays are separated from each other and from the gaseous medium by at least one insulating member. In such a device the gas discharge takes place not between two opposing members, but between two contiguous or adjacent members on the same substrate. Each discharge is isolated, e.g., via cavities, such that the resolution is improved.
Inventors
- 👤 Jerry D Schermerhorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:00
CPC Classifications
H; H01; H01J; H01J11/00; H01J11/10; H01J11/12; G; G11; G11C; G11C11/00; G11C11/21; G11C11/26; G11C11/28; H01J11/20; H01J11/34; H01J11/38
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
155 words
A monolithic gas discharge display/memory device which comprises: a dielectric member having a selected thickness; a cover plate member for maintaining an inert ionizable gaseous medium on one side of the dielectric member; a first array of electrodes on the surface of the gas side of the dielectric member; a second array of electrodes on the surface of the opposite nongas side of the dielectric member, the electrodes in the arrays defining cooperating pairs of electrodes; electrical circuit means for applying a potential to the electrodes to cause a gas discharge at each cooperating pair of electrodes; and a plurality of structural formations in said one side of the dielectric member forming gas-filled cavities in the gas side of the dielectric member, one cavity forming structural formation juxtaposed adjacent to each cooperating pair of electrodes, respectively, so as to isolate each gas discharge relative to other gas discharges and increase the resolution of the device.
Claim 2
Dependent Claim
155 words
A monolithic gas discharge display/memory device which comprises: a dielectric member having a selected thickness; a cover plate member for maintaining an inert ionizable gaseous medium on one side of the dielectric member; a first array of electrodes on the surface of the gas side of the dielectric member; a second array of electrodes on the surface of the opposite nongas side of the dielectric member, the electrodes in the arrays defining cooperating pairs of electrodes; electrical circuit means for applying a potential to the electrodes to cause a gas discharge at each cooperating pair of electrodes; and a plurality of structural formations in said one side of the dielectric member forming gas-filled cavities in the gas side of the dielectric member, one cavity forming structural formation juxtaposed adjacent to each cooperating pair of electrodes, respectively, so as to isolate each gas discharge relative to other gas discharges and increase the resolution of the device.
Claim 3
Dependent Claim
19 words
The invention defined in claim 1 wherein at least one photoluminescent phosphor is deposited within at least one cavity.
Claim 4
Dependent Claim
22 words
The invention defined in claim 1 wherein at least one photoluminescent phosphor is deposited on the gas-contact side of the cover plate.
Claim 5
Dependent Claim
23 words
The invention defined in claim 1 wherein the dielectric member is a thin film having a thickness of less than about 0.5 mil.
Claim 6
Dependent Claim
23 words
The invention defined in claim 1 wherein the dielectric member is a thick film having a thickness of greater than about 0.5 mil.
Claim 7
Dependent Claim
36 words
The invention defined in claim 1 wherein there is a dielectric overcoat on the first array of electrodes such that the electrodes in the array are not in direct contact with the gas in the cavities.
Claim 8
Dependent Claim
32 words
The invention defined in claim 6 wherein the monolithic device is formed on a support substrate which forms one structural member in the device on the non-gas side of the dielectric member.
References Cited (Backward Citations)
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US3678322A
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US3686686A
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US3699377A
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US3704386A
Cited
US3764429A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |