The present invention relates to a liquid crystal compound having a structure as shown by formula I, wherein R is selected from H and alkyl or alkoxy containing 1-12 carbon atoms in which one or more H are unsubstituted or substituted with halogens; A1, A2 and A3 are each independently selected from: a single bond, 1,4-cyclohexylene, 1,4-phenylene, wherein hydrogen in 1,4-phenylene may be each independently substituted with one or more halogens; and Z1 and Z2 are each independently selected from a single bond or —(CH2)2—. The compound of the invention has the characteristics of low rotational viscosity, large dielectric anisotropy, good mutual solubility and stability. The driving voltage of a device can be remarkably reduced after the compound is added to a composition. Thus, the compound of the invention has prosperous applications in LCD industry.
本发明涉及一种液晶化合物,其结构如式 I 所示,其中 R 选自 H 和含有 1-12 个碳原子的烷基或烷氧基,其中一个或多个 H 未被取代或被卤素取代;A1、A2 和 A3 各自独立地选自:单键、1,4-
环己烯、1,4-亚苯基,其中 1,4- 亚苯基中的氢可各自独立地被一个或多个卤素取代;Z1 和 Z2 各自独立地选自单键或-(
CH2)2-。本发明的化合物具有旋转粘度低、介电各向异性大、互溶性和稳定性好的特点。将本发明化合物添加到组合物中后,可显著降低设备的驱动电压。因此,本发明的化合物在液晶显示行业有着广阔的应用前景。