Gas plasma display

Details Gas plasma display Gas plasma display

1982-10-27

1985-11-19

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340773, 340779, G09F 9313

Patent

active

045545375

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.

REFERENCES:
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patent: 4328489 (1982-05-01), Ngo
L. A. Jansen, "Matrix Addressing for Gas Panels Using a Third Addressing Axis", IBM Technical Disclosure, vol. 23, No. 7B, Dec. 1980, pp. 3274-3276.

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