Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1995-05-12
1997-05-27
Brier, Jeffery
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 54, 345 56, G09G 336
Patent
active
056336527
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.
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Kanbe Junichiro
Katagiri Kazuharu
Brier Jeffery
Canon Kabushiki Kaisha
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