Matrix drive system for liquid crystal display

Details Matrix drive system for liquid crystal display Matrix drive system for liquid crystal display

1980-07-14

1982-10-26

Curtis, Marshall M.

Communications: electrical

Continuously variable indicating

With meter reading

340784, 350331R, G09G 336

Patent

active

043564836

ABSTRACT:
A method and drive system for driving an electro-optical display device having a matrix of an n-number of digit electrodes having a plurality of electrodes groups spaced from one another, and a plurality of groups of segment electrodes associated with each of said electrode groups to provide a plurality of display elements at each of the groups. m-number of digit electrodes are simultaneously applied with excitation voltages each having at least two potential levels opposite in porality during an excitation period of:

REFERENCES:
patent: 3776615 (1973-12-01), Tsukamoto et al.
patent: 3789388 (1974-01-01), Medwin
patent: 3898642 (1975-08-01), Dorey et al.
patent: 4117472 (1978-09-01), Freer et al.
patent: 4186395 (1980-01-01), Fujita et al.

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