ALKENYL DIOXANE COMPOUND, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
申请人:JNC CORPORATION
公开号:US20160280996A1
公开(公告)日:2016-09-29
A problem is to provide a liquid crystal compound satisfying at least one physical property such as high stability to heat and light, high clearing point, low minimum temperature of liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, 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).
In formula (1), for example, R
1
is alkenyl; ring A
1
and ring A
2
are 1,4-cyclohexylene or 1,4-phenylene; Z
1
, Z
2
, Z
3
are a single bond or —COO—; X
1
is hydrogen or fluorine; L
1
, L
2
, L
3
and L
4
are hydrogen or fluorine; and a and b are each independently 0 or 1, a sum of a and b is 1, and when a is 1, at least one of ring A
1
and ring A
2
is 1,4-cyclohexylene.
问题是提供一种满足至少一种物理性质的液晶化合物,例如对热和光的高稳定性,高清晰点,液晶相的低最低温度,小粘度,适当的光学各向异性,大介电各向异性,适当的弹性常数以及与其他液晶化合物具有良好兼容性的液晶组合物,包含该化合物的液晶组合物,以及包括该组合物的液晶显示装置。该化合物由式(1)表示。在式(1)中,例如,R1是烯基;环A1和环A2是1,4-环己烯或1,4-苯基;Z1、Z2、Z3是单键或—COO—;X1是氢或氟;L1、L2、L3和L4是氢或氟;a和b分别是0或1,a和b的和为1,当a为1时,环A1和环A2中至少有一个是1,4-环己烯。