3D01 (側鎖型液晶共重合体/低分子液晶)複合系の液晶特性とメモリー性光スイッチングに及ぼす側鎖スペーサ長の影響

概要

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Reversible and bistable electro-optical switching characteristics driven by a.c. electric fields have been extensively investigated for the (side chain type liquid crystalline copolymer : LCcoP / low molecular weight liquid crystals : nematic LCs) composite systems in a smectic state. This paper describes the influence of the spacer length of mesogenic side chain in LCcoP on the electro-optical effect for the (LCcoP/LCs) composite systems in order to improve the switching speed. The response speed of the binary composite systems became faster with a decrease of the spacer length of mesogenic side groups in LCcoP. This indicates that LCcoP with the optimum spacer length in the mesogenic side chain is required to realize a high speed electro-optical switching (〜50ms) as well as a stable memory effect (〜years) at room temperature.
1996-09-30