Fitzpatrick, Cella, Harper & Scinto
Liquid crystal device and process for production thereof
 A liquid crystal device is constituted by a pair of oppositely disposed substrates having opposing inner surfaces and opposing electrodes thereon, and a chiral smectic liquid crystal assuming two stable states disposed between the opposing electrodes. The opposing inner surfaces of the pair of substrates have been subjected to an aligning treatment such that the liquid crystal placed in one of the two stable states moves under application of an electric field in a direction identical to one in which the liquid crystal placed in the other of the two stable states moves under the application of the electric field. The liquid crystal device has an effective optical modulation region and a peripheral region outside the effective optical modulation region, wherein the effective optical modulation region and the photosensitive member have been subjected to different aligning treatments. In the liquid crystal device thus constituted, a liquid crystal movement liable to cause yellowing or fluctuation in drive parameters otherwise is effectively compensated by a liquid crystal movement in the peripheral region. 
Canon Kabushiki Kaisha
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inventional inventional additional
Seishi Hideaki Yasuto Sunao Tadashi Masamichi Bunryo Kazuhiro Makoto Masanobu
Miura Takao Kodera Mori Mihara Saito Sato Aoyama Kojima Asaoka