Low power liquid crystal display driver circuit

Details Low power liquid crystal display driver circuit Low power liquid crystal display driver circuit

1984-12-27

1986-06-03

Curtis, Marshall M.

Communications: electrical

Visual indication

Movable

340805, 340719, G09G 300

Patent

active

045932794

ABSTRACT:
A display circuit includes an input circuit to receive data to be displayed that is connected to segment output circuit which further includes a switching architecture that provides a switching signal of greater magnitude than the voltage supplied to the switch in order to provide output signals to a plurality of display segments. The display circuit further includes display timing circuit that provides a second switch which in turn provides a signal of greater magnitude than the magnitude of the voltage supply to the switch in order to provide output signals to the display segments to signify time intervals. The architecture of this display circuit is suitable for interface to liquid crystal display devices. The input interface is suitable for connection to a four bit microcomputer.

REFERENCES:
patent: 3818484 (1974-06-01), Nakamura et al.
patent: 3828547 (1974-08-01), Fujita
patent: 3828548 (1974-08-01), Martin
patent: 3991416 (1976-11-01), Byles et al.
patent: 4311923 (1982-01-01), Luscher et al.
patent: 4431927 (1984-02-01), Eaton, Jr. et al.

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