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US3777206A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrodes for gas plasma display panels and method of manufacture thereof

Assignee: WALTER E HELLER WESTERN Inc
•
Filing: 1972-03-24
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Granted: 1973-12-04
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Expires: 1992-03-24
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Abstract

Abstract An electrode stack for gas plasma display panels comprises a plurality of dielectric plates each having tapered apertures therethrough. A metal film deposited on the surface of each plate that contains the narrow ends of the tapered apertures provides display electrodes, the film being deposited up to the peripheral edges of the apertures. The plates are stacked with respect to each other such that the surfaces of the plates containing the narrow ends of the apertures are adjacent to surfaces of other plates containing the wide ends of the apertures thereby exposing an effective metal electrode surface. A method involving a single-sided etching technique for manufacturing the electrode structure is disclosed.

Inventors

  • 👤 J Armstrong

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 02:02
CPC Classifications
H; H01; H01J; H01J11/00; H01J11/10; H01J11/12

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 18 words
The electrode stack of claim 1 in which said metal layer electrode means comprises a deposited metal film.
Claim 2
Dependent Claim 238 words
Gas plasma display apparatus comprising reservoir means for containing an ionizable gas, a plurality of gas discharge display cell means, and a plurality of electrode means each having a plurality of apertures therethrough, said plurality of electrode means being in stacked arrangement with respect to each other with said apertures aligned to form a plurality of gas conductive channels extending from said reservoir means to said cell means respectively, said plurality of electrode means being adapted for connection to sources of selectable electrical potential for selectively applying potentials to said electrode means to selectively extend gas discharge columns in said channels from said reservoir means to said display cell means for igniting gas discharges in selected display cell means, said plurality of electrode means comprising, a plurality of dielectric plates each with tapered apertures therethrough and metal layer electrode means deposited on the surface of each said plate containing the narrow ends of said tapered apertures, said metal layer electrode means being deposited up to the peripheral edges of said apertures, said plates being stacked with respect to each other such that the surfaces of said plates containing said narrow ends of said apertures are adjacent the surfaces of said plates containing the wide ends of said apertures, said apertures being in substantial alignment such that portions of said metal electrode means are exposed where said wide ends of said apertures abut said narrow ends of said apertures.
Claim 3
Dependent Claim 24 words
The apparatus of claim 3 wherein said surfaces of said plates containing said narrow ends of said apertures are disposed facing said reservoir means.

References Cited (Backward Citations)

US3560790A Cited
US3619698A Cited
US3701924A Cited
US3700946A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-12-03 1977-06-04 1977-12-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-12-03 1981-06-04 1981-12-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-12-03 1985-06-04 1985-12-04 $7700.00 Window Closed / Lapsed

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