Patent ID: 6413593
Filing Date: 2002-07-02
Classification: C09K

Abstract:
A liquid crystal shutter operating in the normal mode comprising a pair of mutually spaced substrates upon which are provided respective opposed alignment surfaces which are spaced apart, and a layer of liquid crystal composition filling the space between the alignment surfaces wherein the liquid crystal composition includes a host material comprising (a) two or more phenylpyrimidinyl compounds of the general formula (I): wherein X1 and X2 are independently selected from the group consisting of substituted or unsubstituted, straight or branched chain (C1-C12)alkyl, substituted or unsubstituted, straight or branched chain (C1-C12)alkenyl and substituted or unsubstituted, straight or branched chain (C1-C12) alkoxy, and (b) at least one fluoroterphenyl compound of the formula (II) or (III): wherein Y1 and Y2 are independently selected from the group consisting of substituted or unsubstituted, straight or branched chain (C1-C12) alkyl, substituted or unsubstituted, straight or branched chain (C1-C12) alkenyl and substituted or unsubstituted, straight or branched chain (C1-C12) alkoxy, and further includes at least one chiral dopant.