MONOFLUORINATED TERPHENYL COMPOUND HAVING ALKENYL, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY DEVICE
申请人:Satou Teizi
公开号:US20090206300A1
公开(公告)日:2009-08-20
A liquid crystal compound is provided that has stability to heat and an ultraviolet ray, a small viscosity, a suitable refractive index anisotropy, a suitable dielectric anisotropy, a nematic phase within a wide temperature range and favorable compatibility with other liquid crystal compounds, and a liquid crystal composition is also provided that has a particularly small viscosity. The liquid crystal compound is a compound represented by formula (1):
wherein in formula (1), R
1
is hydrogen or alkyl having 1 to 5 carbons; one of X
1
and X
2
is hydrogen, and the other thereof is fluorine; and R
2
is hydrogen or methyl.
提供了一种液晶化合物,它具有耐热和紫外线稳定性、低粘度、适当的折射率各向异性、适当的介电各向异性、在广泛温度范围内具有向列相,并且与其他液晶化合物具有良好的相容性,还提供了一种特别低粘度的液晶组合物。该液晶化合物是由式(1)表示的化合物:其中在式(1)中,R1是氢或具有1到5个碳的烷基;X1和X2中的一个是氢,另一个是氟;R2是氢或甲基。