Gas plasma display
US4554537A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 27, 1982 |
| Grant date | Nov 19, 1985 |
| Priority date | — |
| Expiry date | Oct 27, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2217/49207
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is an AC gas plasma display which provides the benefits of a planar display and permits a substantial separation of the write/erase and sustain function circuitry. First and second arrays of parallel electrodes (X.sub.1 -X.sub.3, Y.sub.1 -Y.sub.6) are disposed orthogonally on opposite surfaces within the gas envelope. One of the arrays includes a plurality of adjacent pairs of electrodes, e.g., Y.sub.3 and Y.sub.4, capable of sustaining glow discharges at the crosspoints of the two arrays. A desired area is illuminated or extinguished in a two-step sequence by applying appropriate pulses to selected electrodes in both arrays. For further separation of write/erase and sustain functions, one of the arrays can include a plurality of sets of three adjacent electrodes (Y.sub.1 ', Y.sub.2 ', Y.sub.3 ' of FIG. 10), with write/erase pulses applied to one of the electrodes and sustain pulses applied to the other two electrodes in the set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.