申请人:Showa Shell Sekiyu Kabushiki Kaisha
公开号:EP0332392A2
公开(公告)日:1989-09-13
Novel ferromagnetic liquid crystal compounds of the invention, which comprises those showing tristable liquid crystal phase S(3, have a wide range of phase transition points so as to be not only preferably used solely as display element material but also mixeo with any other liquid crystal to desiredly expand the above range wider and make optical response time faster.
Typical compounds are represented by
in which Z means CF3, C2Fs, CHF2 CH2F, CIIF2, CCl2F, CF3CCl2 or C3F7 m' and n' are same'or different witn each other and each is an integer of 1 - 20.
本发明的新型铁磁性液晶化合物(包括那些显示三稳态液晶相 S(3 的化合物)具有很宽的相变点范围,因此不仅可以单独用作显示元件材料,还可以与任何其他液晶混合使用,从而理想地扩大上述范围并加快光响应时间。
典型的化合物有
其中 Z 指 CF3、C2Fs、CHF2、CH2F、CIIF2、CCl2F、CF3CCl2 或 C3F7 m' 和 n' 彼此相同或不同,且各为 1-20 的整数。