A liquid crystal electro-optical element which comprises a nematic liquid crystal composition having a positive dielectric anisotropy which is composed of p-n-alkylbenzylidene-p'-cyanoaniline and an improver selected from the group consisting of p-n-alkyl cyanobenzene, p-alkylbenzylidene-p'-alkoxyaniline, and p-alkoxybenzylidene-p'-n-alkylaniline.
Liquid crystal electro optical element