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    • 7. 发明授权
    • Chiral dopants
    • 手性掺杂剂
    • US06217792B1
    • 2001-04-17
    • US09214387
    • 1998-12-30
    • Owain L ParriPatrick NolanLouise D FarrandAlison May
    • Owain L ParriPatrick NolanLouise D FarrandAlison May
    • C09K1934
    • C07D493/04C09K19/588C09K2219/03Y10T428/10
    • The invention relates to chiral dopants of the formula (I): R1—X1—MG1—G—MG2—X2—R2. The invention also relates to liquid crystalline materials comprising at least one chiral dopant of formula (I) and optionally at least one polymerizable mesogenic compound. The invention furthermore relates to the use of such liquid crystalline materials for the preparation of polymer films with a chiral liquid crystalline phase, for active and passive optical elements or color filters and for liquid crystal displays, for example STN, TN, AMD-TN, temperature compensation, guest-host or phase change displays, or polymer free or polymer stabilized cholesteric texture (PFCT, PSCT) displays. The invention also relates to cholesteric liquid crystal displays comprising liquid crystalline materials comprising chiral dopants of formula (I) and to polymer films with a chiral liquid crystalline phase obtainable by (co)polymerizing a liquid crystalline material comprising at least one chiral of formula (I) and at least one polymerizable compound.
    • 本发明涉及式(I)的手性掺杂剂:R1-X1-MG1-G-MG2-X2-R2。 本发明还涉及包含至少一种式(I)的手性掺杂剂和任选的至少一种可聚合的介晶化合物的液晶材料。 本发明还涉及这种液晶材料用于制备具有手性液晶相的聚合物膜,用于主动和无源光学元件或滤色器以及用于液晶显示器的液晶显示器,例如STN,TN,AMD-TN, 温度补偿,宾主或相变显示器,或无聚合物或聚合物稳定的胆甾醇结构(PFCT,PSCT)显示器。 本发明还涉及包括含有式(I)的手性掺杂剂的液晶材料和具有手性液晶相的聚合物膜的胆甾醇型液晶显示器,所述聚合物膜可通过(共)聚合包含至少一种式(I)的手性的液晶材料 )和至少一种可聚合化合物。