Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1995-04-14
1998-03-03
Nguyen, Chanh
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 97, G09G 336
Patent
active
057240590
ABSTRACT:
A method for driving an optical modulation device having a group of scanning electrodes and a group of signal electrodes arranged so that picture elements are defined at the intersections therebetween and a bistable optical modulation material assuming one of two stable states between the groups of electrodes, by in a first phase orienting the bistable material at the picture elements on an N-th scanning electrode to one stable state, and applying a writing signal to the signal electrodes in synchronism with a scanning signal to the N-th scanning electrode while orienting the bistable material at the picture elements on an N+1-th scanning electrode to the one stable state. Also disclosed is a driving mode wherein a scanning signal is applied to the whole or a part of the scanning electrodes while, in phase therewith, a signal is applied to the whole or a part of the signal electrodes so that the optical modulation material is oriented to a first stable state, and a second step in which a scanning signal is applied to the whole or a part of the scanning electrodes while in phase therewith, a signal is applied to a selected signal electrode among the whole or a part of the signal electrodes so that the bistable optical modulation material is oriented to a second stable state.
REFERENCES:
patent: 3922667 (1975-11-01), Ueda et al.
patent: 3975726 (1976-08-01), Kawakami et al.
patent: 4158860 (1979-06-01), Irie et al.
patent: 4367924 (1983-01-01), Clark et al.
patent: 4449123 (1984-05-01), Muranaga
patent: 4465999 (1984-08-01), Tsuzuki et al.
patent: 4508429 (1985-04-01), Nagae et al.
patent: 4529271 (1985-07-01), Berreman et al.
patent: 4548476 (1985-10-01), Kaneko
patent: 4563059 (1986-01-01), Clark et al.
patent: 4630122 (1986-12-01), Morokawa
patent: 4638310 (1987-01-01), Ayliffe
patent: 4655561 (1987-04-01), Kanbe et al.
patent: 4702560 (1987-10-01), Endo
patent: 4705345 (1987-11-01), Ayliffe et al.
patent: 4711531 (1987-12-01), Masubuchi
patent: 4715688 (1987-12-01), Harada et al.
patent: 4725129 (1988-02-01), Kondo et al.
patent: 4770502 (1988-09-01), Kitazima et al.
patent: 5092665 (1992-03-01), Kanbe et al.
"Voltage Dependent Optical Activity of a Twisted nematic Liquid Crystals", M. Schadt and W. Helfrich in Applied Physics Letters, vol. 18, No. 4, 15 Feb. 1971, pp. 127-128.
"Ferroelectric Liquid Crystals" LE Journal De Physique Letters 36 (L-69), Mar. 1975.
"Submicro Second Bistable Electrooptic Switching In Liquid Crystal" Applied Physics Letters 36 (11) 1980.
"Liquid Crystals" Solid State Physics 15 (141), 1981.
Kanbe Junichiro
Katagiri Kazuharu
Canon Kabushiki Kaisha
Nguyen Chanh
LandOfFree
Method for driving optical modulation device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for driving optical modulation device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for driving optical modulation device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2252588