US3811061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plane surface discharge plasma display panel
Assignee: Fujitsu Ltd
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Filing: 1972-10-13
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Granted: 1974-05-14
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Expires: 1992-10-13
Abstract
Abstract Plasma discharge display apparatus is disclosed, comprising an airtight envelope for receiving discharge electrode pairs formed on a common base plate and a dielectric layer formed overlaying the discharge electrode pairs. The discharge characteristics between the discharge electrodes of the respective pairs are made uniform irrespective of the curvature of the base plate and the shape of the airtight envelope.
Inventors
- 👤 N Nakayama
- 👤 Y Shirouchi
- 👤 T Urade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:03
CPC Classifications
H; H01; H01J; H01J11/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
145 words
Discharge plasma display apparatus comprising: a. a plurality of spaced electrode pairs disposed in a common place on a surface of a common insulating support means, said plurality of electrode pairs being disposed in a configuration to display information; b. means for impressing an AC sustain voltage to each of said electrode pairs for establishing an alternating electrical field between said electrodes of a pair and a write-in voltage to selected ones of said electrode pairs; c. a dielectric layer disposed over said plurality of electrode pairs in common contact with each electrode of said electrode pairs; and d. means for forming an envelope having an ionizable gas therein in cooperation with said common insulating support means, disposed opposite said plurality of electrode pairs so that the alternating electrical field passes through said dielectric layer and said ionizable gas as contained within said envelope means.
Claim 2
Dependent Claim
145 words
Discharge plasma display apparatus comprising: a. a plurality of spaced electrode pairs disposed in a common place on a surface of a common insulating support means, said plurality of electrode pairs being disposed in a configuration to display information; b. means for impressing an AC sustain voltage to each of said electrode pairs for establishing an alternating electrical field between said electrodes of a pair and a write-in voltage to selected ones of said electrode pairs; c. a dielectric layer disposed over said plurality of electrode pairs in common contact with each electrode of said electrode pairs; and d. means for forming an envelope having an ionizable gas therein in cooperation with said common insulating support means, disposed opposite said plurality of electrode pairs so that the alternating electrical field passes through said dielectric layer and said ionizable gas as contained within said envelope means.
Claim 3
Dependent Claim
102 words
Discharge plasma display apparatus as claimed in claim 1, wherein said common support means comprises a second dielectric layer which includes first and second opposing surfaces, said plurality of electrode pairs is disposed on said second surface, and said impressing means comprises a first electrical connector disposed upon said first surface of said second dielectric layer and connected with one electrode of each of said pairs, and a second electrical connector is disposed upon said second surface of said second dielectric layer connected with the other electrode of each of said pairs, said first-mentioned dielectric layer is disposed upon said second surface.
Claim 4
Dependent Claim
42 words
Discharge plasma display apparatus as claimed in claim 2, wherein said second dielectric layer includes a plurality of openings therethrough for receiving means for establishing an electrical connection between said one electrode of each of said pairs and said first electrical connector.
Claim 5
Dependent Claim
32 words
Discharge plasma display apparatus as claimed in claim 3, wherein said connecting means comprises U-shaped portions formed in said first electrical connector and disposed through said openings within said second dielectric layer.
Claim 6
Dependent Claim
46 words
Discharge plasma display apparatus as claimed in claim 2, wherein there is included a first plurality of said first electrical connectors disposed in a first direction and a second set of said second electrical connectors disposed in a second direction substantially perpendicular to the first direction.
Claim 7
Dependent Claim
74 words
Discharge plasma display apparatus as claimed in claim 1, wherein one electrode of each of said pairs comprises an electrical connector disposed in a first direction, said other electrode of each of said pairs comprising a second electrical connector disposed in a second direction traverse to said first direction, and there further is included a second dielectric layer for insulating said first electrical connector from said second electrical connector at their point of intersection.
Claim 8
Dependent Claim
54 words
Discharge plasma display apparatus as claimed in claim 1, wherein at least one groove is disposed within said surface of said support means, and said electrodes of each of said pairs are disposed in a spaced relationship on a surface of said groove to form a discharge path across the groove Between said electrodes.
Claim 9
Dependent Claim
41 words
Discharge plasma display apparatus as claimed in claim 1, wherein said plurality of electrode pairs is diaposed in a configuration upon said surface for forming a selected one of a plurality of alphanumeric characters dependent upon which electrode pairs are energized.
Claim 10
Dependent Claim
51 words
Discharge plasma display apparatus as claimed in claim 8, wherein said impressing means includes a first electrical connector for making a common electrical connection to one electrode of said electrode pairs, and a plurality of electrical connectors for making separate connections to each of said other electrodes of said electrode pairs.
Claim 11
Dependent Claim
99 words
Discharge plasma display apparatus as claimed in claim 9, wherein there is included a second dielectric layer disposed upon said surface of said support means, said plurality of electrode pairs disposed upon a surface of said second dielectric layer remote from said support means, and said first electrical connector and said plurality of said second electrical connectors disposed upon said surface of said support means and connected to said electrode pairs through openings within said second dielectric layer, said first-mentioned dielectric layer is disposed on said remote surface of said second dielectric layer and said plurality of electrode pairs.
Claim 12
Dependent Claim
53 words
Discharge plasma display apparatus as claimed in claim 8, wherein there is included a third electrode with each of said plurality of electrode pairs, said third electrode being electrically connected to said one electrode of said electrode pair and said other electrode being disposed intermediate between said one electrode and said third electrode.
Claim 13
Dependent Claim
127 words
Discharge plasma display apparatus as claimed in claim 1, wherein said impressing means includes a first set of electrical connectors disposed in a first direction and electrically connected to one electrode of said electrode pairs, and a second set of electrical connectors disposed in a second direction traverse to the first direction and intersecting said electrical connectors of said first set at a plurality of points, a plurality of insulating layers disposed between said electrical connectors of said first and second sets at their points of intersection, said second set of electrical connectors including a plurality of segments extending therefrom in the first direction to form with an adjacent portion of an electrical connector of said first set an electrode pair for producing a discharge path therebetween.
Claim 14
Dependent Claim
83 words
Discharge plasma display apparatus as claimed in claim 12, wherein said first and second sets of electrical connectors are disposed upon said surface of said support means and said support means includes a plurality of recesses each disposed at a discharge path, said dielectric layer disposed over said first and second sets of electrical connectors and said surface, and said envelope means comprising a cover member spaced from said dielectric layer and forming said envelope means therebetween through which passes the discharge paths.
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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) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |