Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1997-09-06
2000-06-06
Hjerpe, Richard A.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 87, 345 94, G09G 336
Patent
active
060724552
ABSTRACT:
A driving method for a liquid crystal device includes the steps of providing a first substrate with a unidirectionally aligned data electrode group and a second substrate with a select-electrode group aligned perpendicularly to the data electrode; applying a select pulse to the select electrodes; and providing a pause corresponding to at least one line before a data-pulse sequence is applied to the data-electrode group. The select pulse can be synchronized with the data-pulse sequence by shifting them a half line relative to each other so that the select pulse and the data pulse have opposite polarity in relation to each other. Alternatively, the select pulse is applied while the data pulse sequence is applied to the data electrode group. In the latter case, the time and/or voltage is determined so as to offset the effects of the reversed electric field generated during switching of the liquid crystal.
REFERENCES:
patent: 5863458 (1999-01-01), Miyata et al.
patent: 5886678 (1999-03-01), Katakura et al.
patent: 5900852 (1999-05-01), Tanaka et al.
Kataoka Nobue
Matsui Eriko
Yasuda Akio
Hjerpe Richard A.
Kananen, Esq. Ronald P.
Nguyen Kimnhung
Sony Corporation
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