Low cost addressing system for AC plasma panels

Details Low cost addressing system for AC plasma panels Low cost addressing system for AC plasma panels

1982-07-01

1985-04-02

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340781, 250213A, 357 32, 307311, G09G 300

Patent

active

045090459

ABSTRACT:
A flat panel display system for use with AC plasma panels in which addressing signals for an AC plasma panel display line is taken from a voltage divider comprised of two photoresistors, a coupling photoresistor and a decoupling photoresistor. Addressing pulses are coupled to the coupling photoresistor and sustaining voltage signals are coupled to the AC line via a capacitor which shunts the decoupling photoresistor. The coupling and decoupling photoresistors are illuminated in turn. The decoupling photoresistors, will upon illumination accelerate the decay of voltages appearing across the coupling photoresistor and on the AC plasma panel display line.

REFERENCES:
patent: 3078373 (1963-02-01), Wittenberg
patent: 3270206 (1966-08-01), Kazan
patent: 3761768 (1973-09-01), Schmersal
patent: 3894264 (1975-07-01), Andoh et al.
patent: 3900883 (1975-08-01), Hasegawa et al.
patent: 3940757 (1976-02-01), Purchase
patent: 4467325 (1984-08-01), Lustig

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