Method of driving a display device and a display device suitable

Details Method of driving a display device and a display device suitable Method of driving a display device and a display device suitable

1987-10-07

1990-01-09

James, Andrew J.

Communications: electrical

Land vehicle alarms or indicators

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

340784, G02F 1133, G09G 336

Patent

active

048923893

ABSTRACT:
The number of grey levels in LCD display devices is substantially increased by selecting the picture elements during a short part of the line period. The column electrode is subsequently fixed at a reference voltage. The capacitive croostalk thereby considerably decreases, enabling the use of crosstalk compensation for introducing even more grey levels and/or the adoption of redundancy measures which would otherwise be impossible dure to loss of grey levels.

REFERENCES:
patent: 4223308 (1980-09-01), Baraff et al.
patent: 4367924 (1983-01-01), Clark et al.
patent: 4508429 (1984-04-01), Nagae et al.
patent: 4753518 (1988-06-01), Clerc
Castleberry, Donald E. "Varistor Controlled Multiplexed Liquid Crystal Display," Biennial Display Research Conference (Oct. 1978), pp. 42-43.
Lechner et al., "Liquid Crystal Matrix Displays," Proceedings of the IEEE, vol. 59, No. 11, (Nov. 1971), pp. 1566-1579.

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