Nematic liquid crystal mixtures
    21.
    发明授权
    Nematic liquid crystal mixtures 失效
    向列型液晶混合物

    公开(公告)号:US5948319A

    公开(公告)日:1999-09-07

    申请号:US816133

    申请日:1997-03-12

    摘要: A nematic liquid crystal mixture having a birefringence .increment.n of at least 0.20, comprising at least one fluorinated terphenyl of formula I and at least one fluorinated terphenyl of formula II ##STR1## wherein R and R' are each independently of one another or alkyl of up to 12 C atoms, optionally substituted by halogen, CH.sub.2 group optionally replaced, in each case independently of one another, by --O--, ##STR2## in such a manner that oxygen atoms are not linked directly to one another,X and X.sup.1 are each independently F, Cl, CF.sub.3, OCF.sub.3 or OCHF.sub.2, andL.sup.1 -L.sup.4 are each independently H or F.

    摘要翻译: 具有至少0.20的双折射INCREMENT n的向列型液晶混合物,其包含至少一种式I的氟化三联苯和至少一种式II的氟化三联苯,其中R和R'彼此独立地为至多12个 任选地被卤素取代的C原子,CH 2基团在任何情况下彼此独立地被-O - 取代,使得氧原子彼此不直接相连,X和X 1各自独立地为F,Cl ,CF 3,OCF 3或OCHF 2,以及L 1 -L 4各自独立地为H或F.