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Liquid crystal device with a bistable chiral smectic liquid crystal having a phase transition series lacking a cholesteric phase #16
Liquid crystal device with a bistable chiral smectic liquid crystal having a phase transition series lacking a cholesteric phase #16
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机译:具有双稳态手性近晶液晶的液晶器件,该液晶器件具有缺乏胆甾相#16的相变系列
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摘要
A chiral smectic liquid crystal device with good planar homogeneity in a layer normal direction can be constituted by disposing a chiral smectic liquid crystal having no cholesteric phase between a pair of substrates having mutually different characters, particularly in terms of Iso-SmA phase transition temperature. The liquid crystal may preferably have a layer spacing-changing characteristic such that it provides a layer spacing d.sub.A at a first transition point where the layer spacing of the liquid crystal begins to decrease on temperature decrease in the vicinity of a transition temperature from SmA phase to SmC* phase and a layer spacing d.sub.min at a second transition point where the layer spacing of the liquid crystal begins to increase on further temperature decrease from the first transition point, satisfying 0.96≦d.sub. min /d.sub.A.
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