LIQUID CRYSTAL COMPOUND HAVING VINYLOXY, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
申请人:GOTOH Yasuyuki
公开号:US20140138582A1
公开(公告)日:2014-05-22
A liquid crystal compound having high stability to heat, light and so forth, a high clearing point, a low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and excellent compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1-1):
wherein, for example, R
1
is alkyl having 1 to 10 carbons, alkoxy having 1 to 9 carbons or alkenyl having 2 to 10 carbons; R
2
is alkyl having 1 to 10 carbons, alkoxy having 1 to 9 carbons or alkenyl having 3 to 10 carbons; ring A
1
is 1,4-cyclohexylene or 1,4-phenylene; ring A
2
is 1,4-cyclohexylene, 1,4-phenylene or 2,3-difluoro-1,4-phenylene; Z
1
and Z
2
are single bonds; L
1
and L
2
are fluorine; and 1 is 0, 1 or 2.