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    • 14. 发明授权
    • Antiferroelectric liquid crystal composition
    • 反铁电液晶组合物
    • US06267910B1
    • 2001-07-31
    • US08589577
    • 1996-01-22
    • Hitoshi HayashiAkira TakeuchiKatsuhide KikuchiKenji Takigawa
    • Hitoshi HayashiAkira TakeuchiKatsuhide KikuchiKenji Takigawa
    • C09K1952
    • C09K19/0266C09K19/2021
    • An antiferroelectric liquid crystal composition having a chiral smectic CA* phase composed by blending liquid crystal composition-constituting compounds having the same direction of inclination of optic axis produced by application of an electric field and/or comprised of a mixture of two enantiomers of a liquid crystal material; one having the stereosense (+) and the other having the stereosense (−). The stereosense is defined so that, when the molecule is viewed so that the bond between the core group and the asymmetric carbon is behind the asymmetric carbon atom, the stereosense is (+) if the remaining three groups (or atoms) are arranged clockwise in order of length of the groups (or, if the groups are the same length, in order of their volume), and the stereosense is (−) if the groups are arranged counter clockwise.
    • 具有手性近晶CA *相的反铁电液晶组合物,其通过混合通过施加电场产生的具有相同的光轴倾斜方向的液晶组合物构成化合物和/或由液体的两种对映异构体的混合物组成 水晶材料; 一个具有立体声(+),另一个具有立体声( - )。 立体定义被定义为使得当观察到分子使得核心基团和不对称碳之间的键在不对称碳原子之后时,如果剩余的三个基团(或原子)顺时针方向排列,立体声是(+) 组的长度顺序(或者如果组的长度相同,按卷的顺序),并且立体声是( - ),如果组被逆时针排列。