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US3701916A Expired / Lapsed US ⏱️ 0.0 years remaining

Display panel having gas-filled cells utilizing phosphor materials

Assignee: Unisys Corp
•
Filing: 1971-02-01
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Granted: 1972-10-31
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Expires: 1991-02-01
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Abstract

Abstract The display panel includes a plurality of gas-filled cells and electrodes therefor, with some of the cells being formed by apertures in an insulating plate. The panel includes a selected phosphor material which is integral with said insulating plate and is exposed in the apertures therein.

Inventors

  • 👤 David Glaser

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 14:13
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/38; H01J61/42; H01J17/00; H01J17/38; H01J17/48; H01J17/49; H01J17/492; H01J17/494

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 43 words
A gas-filled display device comprising an envelope containing an insulating body having apertures defining gas-filled glow cells, and an anode and cathode electrode associated with each said cell, said insulating body having phosphor material dispersed through its body and exposed in said apertures.
Claim 2
Dependent Claim 43 words
A gas-filled display device comprising an envelope containing an insulating body having apertures defining gas-filled glow cells, and an anode and cathode electrode associated with each said cell, said insulating body having phosphor material dispersed through its body and exposed in said apertures.
Claim 3
Dependent Claim 28 words
The device defined in claim 1 wherein said apertures comprise small dot-like volumes which are arrayed in rows and columns and can be selectively energized to display characters.
Claim 4
Dependent Claim 27 words
The device defined in claim 1 wherein said insulating bOdy has an array of elongated rectangular apertures, said apertures being energizable in different groups to represent characters.
Claim 5
Dependent Claim 22 words
The device defined in claim 1 wherein each cathode electrode is disposed within an aperture and each anode electrode is spaced therefrom.
Claim 6
Dependent Claim 74 words
A gas-filled display device comprising an envelope containing an insulating plate having apertures defining gas-filled glow cells and having top and bottom surfaces, an anode and cathode electrode associated with each said cell, said cathode being positioned adjacent to said bottom surface of said plate and said anode electrode being positioned adjacent to said top surface of said plate, said insulating plate having phosphor material dispersed through its body and exposed in said apertures.
Claim 7
Dependent Claim 74 words
A gas-filled display device comprising an envelope containing an insulating plate having apertures defining gas-filled glow cells and having top and bottom surfaces, an anode and cathode electrode associated with each said cell, said cathode being positioned adjacent to said bottom surface of said plate and said anode electrode being positioned adjacent to said top surface of said plate, said insulating plate having phosphor material dispersed through its body and exposed in said apertures.
Claim 8
Dependent Claim 81 words
A gas-filled display device comprising an envelope containing a first array of first gas-filled cells and having an anode electrode and a cathode electrode means associated with each of said cells, an insulating plate having a second array of second gas-filled cells in operative relation with said first array of cells with an anode and said cathode electrode means associated with each said second cell, said insulating plate having phosphor material dispersed through its body and exposed in said second cells.
Claim 9
Dependent Claim 81 words
A gas-filled display device comprising an envelope containing a first array of first gas-filled cells and having an anode electrode and a cathode electrode means associated with each of said cells, an insulating plate having a second array of second gas-filled cells in operative relation with said first array of cells with an anode and said cathode electrode means associated with each said second cell, said insulating plate having phosphor material dispersed through its body and exposed in said second cells.
Claim 10
Dependent Claim 109 words
A gas-filled display device comprising an envelope containing a first array of first gas-filled cells and having an anode electrode and a cathode electrode associated with each of said cells, and an insulating plate having a second array of second gas-filled cells in operative relation with said first array of cells with an anode and said cathode electrode associated with each said second cell, said second array of gas-filled cells being disposed adjacent to and above said first array of gas-filled cells, with each second gas-filled cell being in gas communication with one of said first gas-filled cells, said insulating plate having phosphor material exposed in said second cells.
Claim 11
Dependent Claim 109 words
A gas-filled display device comprising an envelope containing a first array of first gas-filled cells and having an anode electrode and a cathode electrode associated with each of said cells, and an insulating plate having a second array of second gas-filled cells in operative relation with said first array of cells with an anode and said cathode electrode associated with each said second cell, said second array of gas-filled cells being disposed adjacent to and above said first array of gas-filled cells, with each second gas-filled cell being in gas communication with one of said first gas-filled cells, said insulating plate having phosphor material exposed in said second cells.
Claim 12
Dependent Claim 68 words
A gas-filled display device comprising an envelope, a first insulating plate in said envelope, a plurality of cathode electrodes on said plate, a second insulating plate supported on said first plate and having a plurality of apertures, each of which surrounds and encloses one of said cathode segments, and an anode electrode spaced from said cathode electrodes, said second insulating plate having phosphor material exposed in said apertures.
Claim 13
Dependent Claim 68 words
A gas-filled display device comprising an envelope, a first insulating plate in said envelope, a plurality of cathode electrodes on said plate, a second insulating plate supported on said first plate and having a plurality of apertures, each of which surrounds and encloses one of said cathode segments, and an anode electrode spaced from said cathode electrodes, said second insulating plate having phosphor material exposed in said apertures.
Claim 14
Dependent Claim 73 words
A gas-filled display device comprising an envelope, a first insulating plate in said envelope, a plurality of cathode electrodes on said plate, a second insulating plate supported on said first plate and having a plurality of apertures, each of which surrounds and encloses one of said cathode segments, and an anode electrode spaced from said cathode electrodes, said second insulating plate having phosphor material dispersed through its body and exposed in said apertures.
Claim 15
Dependent Claim 73 words
A gas-filled display device comprising an envelope, a first insulating plate in said envelope, a plurality of cathode electrodes on said plate, a second insulating plate supported on said first plate and having a plurality of apertures, each of which surrounds and encloses one of said cathode segments, and an anode electrode spaced from said cathode electrodes, said second insulating plate having phosphor material dispersed through its body and exposed in said apertures.
Claim 16
Dependent Claim 65 words
Method of making a display panel comprising the steps of preparing a mixture of an insulating material and a phosphor material and forming a plate therewith having apertures in which particles of said phosphor material are exposed, assembling said plate with an anode electrode and a cathode electrode for each aperture in an envelope, introducing an ionizable gas into said envelope, and sealing said envelope.
Claim 17
Dependent Claim 65 words
Method of making a display panel comprising the steps of preparing a mixture of an insulating material and a phosphor material and forming a plate therewith having apertures in which particles of said phosphor material are exposed, assembling said plate with an anode electrode and a cathode electrode for each aperture in an envelope, introducing an ionizable gas into said envelope, and sealing said envelope.
Claim 18
Dependent Claim 87 words
A display device comprising a gas-filled envelope containing an insulating plate having apertures defining gas-filled glow cells, said cells being spaced apart, with solid portions of said plate disposed between them, and an anode and cathode electrode associated with each said cell, said insulating plate having particles of phosphor material dispersed throughout its volume and within the solid portions thereof disposed between said cells, said phosphor particles being exposed in the walls of said plate defining each of said apertures and in contacT with the gas therein.
Claim 19
Dependent Claim 87 words
A display device comprising a gas-filled envelope containing an insulating plate having apertures defining gas-filled glow cells, said cells being spaced apart, with solid portions of said plate disposed between them, and an anode and cathode electrode associated with each said cell, said insulating plate having particles of phosphor material dispersed throughout its volume and within the solid portions thereof disposed between said cells, said phosphor particles being exposed in the walls of said plate defining each of said apertures and in contacT with the gas therein.

References Cited (Backward Citations)

US2972707A Cited
US2933648A Cited
US2922076A Cited
US3559190A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-10-31 1976-05-01 1976-10-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-10-31 1980-05-01 1980-10-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-10-31 1984-05-01 1984-10-31 $7700.00 Window Closed / Lapsed

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