LIQUID CRYSTAL FOUR-RING COMPOUND HAVING FLUORINE, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY DEVICE
申请人:Kubo Takahiro
公开号:US20110079753A1
公开(公告)日:2011-04-07
The invention provides a liquid crystal compound having stability to heat, light and so forth, a wide temperature range of the nematic phase, a small viscosity, a suitable optical anisotropy, a suitable dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. The invention also provides a liquid crystal composition containing this liquid crystal compound and a liquid crystal display device containing this liquid crystal composition.
The compound is represented by formula (a).
R
a
is, for example, alkyl having 1 to 10 carbons, and R
b
is, for example, alkenyl having 2 to 10 carbons; L
a
is, for example, hydrogen; and Z
1
, Z
2
and Z
3
are, for example, a single bond. The liquid crystal composition comprises this compound. The liquid crystal display device comprises this liquid crystal composition.