CARBONYL DERIVATIVE, LIQUID CRYSTAL COMPOSITION CONTAINING COMPOUND THEREOF AND LIQUID CRYSTAL DISPLAY DEVICE
申请人:JNC CORPORATION
公开号:US20150218452A1
公开(公告)日:2015-08-06
To provide a liquid crystal compound satisfying at least one of physical properties such as a high stability to heat, light and so forth, a high clearing point, a low minimum temperature of a liquid crystal phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a suitable elastic constant and an excellent compatibility with other liquid crystal compounds; a liquid crystal composition containing the compound; and a liquid crystal display device including the composition. The compound is represented by formula (1):
wherein, for example, Ra and Rb are alkyl having 1 to 10 carbons, alkenyl having 2 to 10 carbons or alkoxy having 1 to 9 carbons; A
1
, A
2
and A
3
are 1,4-cyclohexylene or 1,4-phenylene; Z
1
and Z
2
are single bonds, —(CH
2
)
2
—, —CH═CH—, —COO—, —OCO—, —CF
2
O—, —OCF
2
—, —CH
2
O— or —OCH
2
—; Y
1
is —CF
2
H or —CF
3
; Y
2
is fluorine; and a, b and d are 0, 1, 2 or 3, and c is 1 or 3.