Driving circuit for liquid-crystal display

Details Driving circuit for liquid-crystal display Driving circuit for liquid-crystal display

1974-05-08

1976-06-08

Corbin, John R.

G02F 113

Patent

active

039618404

ABSTRACT:
To excite a liquid-crystal display element, a square wave is applied to opposite electrodes of that element by a source of alternating voltage through a switching circuit which briefly short-circuits the display element, during every change of polarity of the voltage source, by connecting both electrodes to the same potential via a low-impedance path. As the display element discharges over that path, the source is open-circuited whereby energy consumption is reduced.

REFERENCES:
patent: 3654606 (1972-04-01), Marlowe et al.
patent: 3760406 (1973-09-01), Walton

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