Method of driving liquid crystal matrix display device

Details Method of driving liquid crystal matrix display device Method of driving liquid crystal matrix display device

1974-10-15

1976-08-24

Corbin, John K.

Communications: electrical

Land vehicle alarms or indicators

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

340324M, G02F 113

Patent

active

039763625

ABSTRACT:
In a method of driving with a one-line-at-a-time scanning system a liquid crystal matrix display device in which the picture elements are defined by liquid crystal cell portions formed between the scanning and the signal electrodes arranged in the form of a matrix, the amplitude of the voltage applied to non-selected cells along a selected scanning electrode is made different from the amplitude of the voltage applied to non-selected cells along a selected signal electrode; the amplitude of the voltage (bias voltage) applied to non-selected cells along the selected signal electrode is made equal to the amplitude of the voltage applied to the remaining non-selected cells; and the bias voltage is determined depending on the number of the scanning electrodes, so that the operation margin is further improved.

REFERENCES:
patent: 3776615 (1973-12-01), Tsukamoto et al.
Gooch et al., "Matrix-Addressed Liquid Crystal Displays" J. Phys. D: Appl. Phys. (G.B.) vol. 5, 1972, pp. 1218-1225.

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