COMPOUND HAVING BRANCHED ALKYL OR BRANCHED ALKENYL, OPTICALLY ISOTROPIC LIQUID CRYSTAL MEDIUM AND OPTICAL ELEMENT
申请人:Sagou Kouki
公开号:US20130100369A1
公开(公告)日:2013-04-25
A liquid crystal compound with branched alkyl or branched alkenyl as represented by formula (1), a liquid crystal medium (a liquid crystal composition or a polymer/liquid crystal composite material) containing the liquid crystal compound, and an optical element containing the liquid crystal medium are described.
In formula (1), R
1
is branched alkyl of C
3-20
or branched alkenyl of C
3-20
. The ring A
1
, A
2
, A
3
, A
4
or A
5
is 1,4-phenylene or 1,3-dioxane-2,5-diyl, for example. Z
1
, Z
2
, Z
3
and Z
4
are independently a single bond or C
1-4
alkylene, for example. Y
1
is fluorine, for example, m, n and p are independently 0 or 1, and 1≦m+n+p≦3.