LIQUID CRYSTAL COMPOUND SHOWING NEGATIVE DIELECTRIC ANISOTROPY, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
申请人:JNC CORPORATION
公开号:US20130277610A1
公开(公告)日:2013-10-24
To provide a liquid crystal compound having a large negative value of dielectric anisotropy (As). A compound is represented by formula (1):
wherein, in formula (1), one of Y
1
and Y
2
is fluorine, and the other is CF
2
H or CF
3
; G is a ring represented by formula (pr-1) or formula (pr-2):
wherein A
1
to A
3
are independently 1,4-cyclohexylene or 1,4-phenylene; R
a
and R
b
are independently hydrogen, alkyl having 1 to 20 carbons, or the like; Z
0
, and Z
1
to Z
3
are independently a single bond, —(CH
2
)
2
—, —CH═CH—, —CF
2
O—, —OCF
2
—, —CH
2
O—, —OCH
2
—, —COO— or —OCO—; j, m and n are an integer from 0 to 2, and a sum of j, m and n is 0, 1 or 2, however, when m is 0, Y
1
is CF
2
H or CF
3
, Y
2
is fluorine, and Z
0
is a single bond, G is a ring represented by formula (pr-1).