Driver circuit for electrochromic display device

Details Driver circuit for electrochromic display device Driver circuit for electrochromic display device

1976-07-01

1979-04-17

Trafton, David L.

Communications: electrical

Land vehicle alarms or indicators

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

58 50R, 350357, 340785, 340798, 340804, G06K 1518

Patent

active

041503651

ABSTRACT:
A driver circuit for an electrochromic display device which includes segment electrodes and a common electrode. The driver circuit has a power source, switching means connected between the power source and the segment electrodes, and circuit means disposed between the common electrode and the power source. The circuit means is operative to couple the common electrode to either a positive terminal or a negative terminal of the power source, whereby an electric current will flow through the segment electrodes in bleaching and coloring directions with the use of a single power source.

REFERENCES:
patent: 3807832 (1974-04-01), Castellion
patent: 3839857 (1974-10-01), Berets et al.
patent: 3896430 (1975-07-01), Hatsukano
patent: 3938131 (1976-02-01), Van Doorn et al.

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