COMPOUND HAVING ALKOXY GROUP OR ALKOXYALKYL GROUP, AND SATURATED SIX-MEMBERED RING, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

Provided is a liquid crystal compound satisfying at least one of physical properties such as high stability to heat, light or the like, a high clearing point, low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy and large dielectric anisotropy, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition.;A compound is represented by formula (1).; ;In formula (1), for example,R¹ is alkyl having 1 to 12 carbons;ring A¹, ring A² and ring A³ are independently; ;in which, X¹ and X² are independently —O— or —CH₂—;Y¹ is fluorine, —CF₃ or —OCF₃;Z¹ and Z³ are independently a single bond, —CF₂O— or —COO—;Z² is a single bond, —CF₂O— or —COO—;L¹ and L² are independently hydrogen or halogen;a is 0, 1, 2 or 3; andn¹ and n² are independently 0, 1 or 2.