Liquid crystal medium, useful for electro-optical purposes, is based on a mixture of polar compounds having positive dielectric anisotropy and contains at least one aryl-cyclohexyl compound

摘要

A liquid crystal medium (I) based on a mixture of polar compounds having positive dielectric anisotropy contains at least one aryl-cyclohexyl compound. A liquid crystal medium (I) based on a mixture of polar compounds having positive dielectric anisotropy contains at least one compound of formula (1) and at least one compound of formula (2) and/or (2a): R = H, 1-15C alkyl or alkoxy; R', R'', R''' = 1-10C alkyl or alkoxy, 2-10C alkenyl; Y = F, OCF3 or OCHF2; and L = H or F An Independent claim is included for an electro-optical liquid crystal device containing the liquid crystal medium (I).