A liquid crystal medium having a wide temperature range of a liquid crystal phase, a large optical anisotropy, and a large dielectric anisotropy and having an optically isotropic liquid crystal phase is provided. The liquid crystal medium is characterized by containing a liquid crystal compound having a pyrimidine ring and a linking group -CF2O- and a chiral dopant, and exhibiting an optically isotropic liquid crystal phase.
提供了一种液晶相温度范围宽、光学各向异性大、介电各向异性大且具有光学各向同性液晶相的液晶介质。该液晶介质的特点是含有一种具有
嘧啶环和连接基团-
CF2O-以及手性掺杂剂的液晶化合物,并显示出光学各向同性液晶相。