申请人:GOTO Mayumi
公开号:US20130306909A1
公开(公告)日:2013-11-21
To provide a liquid crystal compound having a large negative value of dielectric anisotropy (Δ∈). A compound is represented by formula (1):
wherein, in formula (1), R
1
and R
2
are hydrogen, halogen or alkyl having 1 to 10 carbons, and in the alkyl, at least one of —CH
2
— may be replaced by —O—, at least one of —(CH
2
)
2
— may be replaced by —CH═CH—, and at least one of hydrogen may be replaced by halogen; ring A
1
and ring A
2
are 1,4-cyclohexylene or 1,4-phenylene; Z
1
is a single bond, —(CH
2
)
2
—, —CH
2
O—, —OCH
2
—, —CF
2
O—, —OCF
2
—, —COO—, or —OCO—; Y is halogen, —CF
3
, —CF
2
H or —CH
2
F; and m, n and p are 0, 1 or 2, and a sum (m+n) of m and n is 0, 1 or 2.