Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1996-05-17
1999-08-03
Brier, Jeffery
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 97, 349133, 349136, G09G 336
Patent
active
059331283
ABSTRACT:
A liquid crystal apparatus includes (a) a liquid crystal panel including: a pair of substrates having thereon a group of scanning electrodes and a group of data electrodes, respectively, and provided with mutually different alignment characteristics, and a chiral smectic liquid crystal disposed between the substrates so as to form a pixel at each intersection of the scanning electrodes and the data electrodes, and (b) drive means for: sequentially applying a scanning selection signal to the scanning electrodes to select at least one scanning electrode, and applying a data signal having at least three peak values to the data electrodes in synchronism with the scanning selection signal. A DC bias voltage may be applied between the scanning electrodes and the data electrodes, and the polarity of the DC voltage may be switched for each prescribed period. The above system is suitable for obviating or suppressing the "sticking" phenomenon of a chiral smectic liquid crystal.
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Ikeda Osamu
Katakura Kazunori
Kimura Hironao
Kuribayashi Masaki
Tsuzuki Hidetoshi
Brier Jeffery
Canon Kabushiki Kaisha
Lewis David L
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