1,3-DIOXANE COMPOUND HAVING FLUORINE ATOM IN AXIAL POSITION, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
申请人:JNC CORPORATION
公开号:US20150368225A1
公开(公告)日:2015-12-24
A liquid-crystal compound satisfying at least one physical property such as a high clearing point, large dielectric anisotropy and excellent compatibility with other liquid-crystal compounds is described; a liquid-crystal composition containing the compound; and a liquid-crystal display device.
The compound is represented by formula (1):
wherein, R
1
and R
2
are independently alkyl having 1 to 15 carbons, and in the alkyl, at least one —CH
2
— may be replaced by —O—, —CH═CH— or the like;
ring A
1
, ring A
2
and ring A
3
are independently 1,4-cyclohexylene, 1,4-phenylene or the like, and at least one ring A
1
, ring A
2
or ring A
3
is represented by formula (A):
wherein, X
1
and X
2
are independently hydrogen or halogen; and
Z
1
, Z
2
and Z
3
are independently a single bond, —(CH
2
)
2
— or the like; and
a, b and c are independently 0 or 1, and a sum of a, b and c is 1, 2 or 3.
描述一种液晶化合物,满足至少一种物理性质,如高清晰点,大介电各向异性和与其他液晶化合物的良好相容性;一种含有该化合物的液晶组合物;以及一种液晶显示装置。该化合物由式(1)表示:其中,R1和R2分别是具有1到15个碳的烷基,且在烷基中,至少一个-CH2-可以被-O-,-CH═CH-或类似物所替代;环A1,环A2和环A3分别是1,4-环己亚甲基,1,4-苯亚甲基或类似物,并且至少一个环A1,环A2或环A3由式(A)表示:其中,X1和X2分别是氢或卤素;Z1,Z2和Z3分别是单键,-(CH2)2-或类似物;a,b和c分别为0或1,且a,b和c的总和为1,2或3。