US3827776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating a gas discharge display device having an alkali metal atomic layer
Assignee: Fujitsu Ltd
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Filing: 1972-06-14
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Granted: 1974-08-06
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Expires: 1992-06-14
Abstract
Abstract A pair of insulating substrates, at least one of which provides a group of electrodes on the inside surface, are positioned in spaced parallel relation having inside surfaces opposite each other with a gap filled with ionizable gas. The surface of the group of electrodes is covered with a dielectric layer, and this dielectric layer is covered with a material having a high secondary electron emissivity by introducing a fluid which includes alkali metal into the above-mentioned gap. Further, the dielectric layer is composed of a material having small activity with alkali metal.
Inventors
- 👤 N Nakayama
- 👤 M Osawa
- 👤 K Mizuko
- 👤 I Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:47
CPC Classifications
H; H01; H01J; H01J11/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
118 words
A method for fabricating a display device utilizing gas discharge comprising the steps of: forming a pair of insulating substrates, at least one of which providing a group of electrodes on an inside surface; coating a dielectric substance on said group of electrodes; forming a panel by positioning said pair of insulating substrates in spaced parallel relation having inside surfaces opposite each other with a gap therebetween; forming an hermetic seal at a periphery of said panel; introducing a liquid including an alkali metal element into said gap; removing the solvent of said liquid to form an alkali metal atomic layer on said dielectric substance during heating of said panel; and, filling an ionizable gas into said gap.
References Cited (Backward Citations)
US3716742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |