G - Physics – 02 – F
Patent
G - Physics
02
F
G02F 1/133 (2006.01) C09K 19/06 (2006.01) G02F 1/1333 (2006.01) G02F 1/1337 (2006.01) G02F 1/1343 (2006.01) G02F 1/137 (2006.01) G02F 1/141 (2006.01)
Patent
CA 2151567
Disclosed is a liquid crystal device comprising a liquid crystal cell filled with a liquid crystal material capable of exhibiting a smectic phase, said cell including upper and lower substrates each having an electrode and provided with an orientation film on the electrode, in which the cross angle .theta. formed by the orientation directions of the liquid crystal material controlled by the orientation films, contacted to the liquid crystal material is 180° - ? or 360° - ? (0° < ? 90°). Also disclosed is a process for preparing the above-mentioned liquid crystal device comprising treating the orientation films and preparing the liquid crystal cell so as to form the cross angle within the above range in the cell. According to the present invention, a liquid crystal device having a high electrooptic response speed required in various technical fields such as optical communication, steroscopic image display, image processing and optical operation and also having a high optical contrast can be obtained.
Hama Hideo
Nagai Mitsuko
Sakai Yukari
Mitsui Chemicals Inc.
Smart & Biggar
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