US3678322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-color plasma display panel
Assignee: Iwatsu Electric Co Ltd
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Filing: 1970-11-27
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Granted: 1972-07-18
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Expires: 1990-11-27
Abstract
Abstract In a plasma display panel comprising a center glass plate having plurality of openings each containing luminous gas, a pair of outer glass walls on the opposite sides of the center glass plate for sealing the gas and a plurality of electrodes on the outer surfaces of the outer glass walls for exciting the luminous gas, the openings are in the form of blind openings opened on the opposite surfaces of the center glass plates and are sealed with gasses of different discharge colors, thus providing a multicolor display panel.
Inventors
- 👤 Hiroshi Souri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:52
CPC Classifications
H; H01; H01J; H01J11/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
81 words
A multi-color plasma display panel comprising a center glass plate having a plurality of blind small openings which are formed from opposite surfaces of said center glass plate, said openings opening on different sides of said center glass plate being sealed with gasses of different discharge colors, outer glass walls on the opposite side of said center glass plate to seal said openings, and transparent electrodes on the outer sides of said outer glass walls for causing said gasses to luminesce.
Claim 2
Dependent Claim
81 words
A multi-color plasma display panel comprising a center glass plate having a plurality of blind small openings which are formed from opposite surfaces of said center glass plate, said openings opening on different sides of said center glass plate being sealed with gasses of different discharge colors, outer glass walls on the opposite side of said center glass plate to seal said openings, and transparent electrodes on the outer sides of said outer glass walls for causing said gasses to luminesce.
Claim 3
Dependent Claim
77 words
The multi-color plasma display panel according to claim 1 wherein one group of said electrodes on one side are disposed in parallel to each other and the other group of said electrodes on the other side are also disposed in parallel to each other and at right angles with respect to said electrodes on said one side thus forming a matrix and said blind openings are respectively formed at respective crossings between said two groups of electrodes.
Claim 4
Dependent Claim
23 words
The multi-color plasma display panel according to claim 1 wherein a plurality of said openings are formed at each one of said crossings.
References Cited (Backward Citations)
US3013182A
Cited
US3509407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |