Liquid crystal compound, liquid crystal composition and liquid crystal display device
申请人:Kobayashi Masahide
公开号:US08580146B2
公开(公告)日:2013-11-12
A liquid crystal compound having a high stability to heat, light or the like, a wide temperature range of a nematic phase, a small viscosity, a suitable optical anisotropy, a large elastic constant K33, a large negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. Also, a liquid crystal composition having characteristics similar to these of the compound. Additionally, a liquid crystal display device having a short response time, low electric power consumption, a low driving voltage, a large contrast and a wide temperature range in which the device can be used.
The compound is a 2,3-difluorobenzene derivative (1) having a combination of a cyclohexane ring, a cyclohexene ring or a benzene ring phenyl and a butene bonding group. The liquid crystal composition includes this compound, and the liquid crystal display device contains this composition.
该液晶化合物具有高热稳定性、光稳定性、宽的向列相温度范围、低粘度、适当的光学各向异性、大的弹性常数K33、大的负介电各向异性以及与其他液晶化合物的良好相容性。此外,液晶组合物具有类似于该化合物的特性。此外,液晶显示器具有短响应时间、低电功耗、低驱动电压、大对比度以及可以使用的宽温度范围。该化合物是一种2,3-二氟苯衍生物(1),具有一个环己烷环、一个环己烯环或苯环苯基和一个丁烯键结合基的组合。该液晶组合物包括此化合物,并且液晶显示器包含此组合物。