COMPOUND HAVING FLUORODIBENZOFURAN RING, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
申请人:JNC CORPORATION
公开号:US20180258347A1
公开(公告)日:2018-09-13
Provided are a liquid crystal compound satisfying at least one of physical properties such as high stability to heat or light, a high clearing point (or high maximum temperature), low minimum temperature of a liquid crystal phase, small viscosity, large optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and good compatibility with other liquid crystal compounds, 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),
R
1
and R
2
are independently hydrogen or alkyl having 1 to 15 carbons; and A
1
, A
2
and A
3
are independently 1,4-cyclohexylene or 1,4-phenylene;
Z
1
, Z
2
and Z
3
are independently a single bond;
Y
1
, Y
2
, Y
3
and Y
4
are independently hydrogen, fluorine or the like; and
a, b and c are independently 0 or 1, and a sum of a, b and c is 0 to 3.
提供了一种液晶化合物,满足至少一种物理特性,如对热或光的高稳定性,高清晰点(或高最高温度),液晶相的低最低温度,小粘度,大光学各向异性,大负介电各向异性,适当的弹性常数和与其他液晶化合物良好的相容性,一种含有该化合物的液晶组合物和包括该组合物的液晶显示装置。化合物由式(1)表示:在式(1)中,R1和R2独立地是氢或具有1到15个碳的烷基;A1、A2和A3独立地是1,4-环己亚甲基或1,4-苯亚甲基;Z1、Z2和Z3独立地是单键;Y1、Y2、Y3和Y4独立地是氢、氟或类似物;a、b和c独立地为0或1,且a、b和c的总和为0到3。