Visual display apparatus
US4063231A · kind A · utility
7Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1976 |
| Grant date | Dec 13, 1977 |
| Priority date | — |
| Expiry date | Oct 26, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/30
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for providing a visual display screen of the type formed from a plurality of gas cells wherein electrical voltages are capacitively coupled to selected cells to cause gas ignition and subsequent light emission, and wherein a preselected and repeatable pattern of color phosphor is deposited on selected cell surfaces in predetermined amounts to form a means for selecting any color and intensity combination over a wide range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.