LIQUID CRYSTAL COMPOUND, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
申请人:Tanaka Hiroyuki
公开号:US20130119310A1
公开(公告)日:2013-05-16
To provide a novel liquid crystal compound having general physical properties necessary for the compound, namely, stability to heat, light and so forth, a wide temperature range of a liquid crystal phase, a high clearing point, a good compatibility with other compounds, a large refractive index anisotropy, a large dielectric anisotropy and a small viscosity. The liquid crystal compound is provided as compound (1):
wherein, for example, R
1
is alkyl having 1 to 20 carbons; ring A
1
and ring B
1
are 1,4-cyclohexylene or 1,4-phenylene; Z
1
and Z
2
are a single bond, —CH
2
CH
2
—, —CH═CH— or —C≡C—; L
1
is fluorine; L
2
, Y
1
and Y
2
are hydrogen, fluorine or chlorine; and X
1
is halogen, —C≡N or alkyl having 1 to 10 carbons, and in the alkyl, arbitrary —CH
2
— may be replaced by —O— or —S—, and m is 1 and n is 0.
为提供一种具有一般化合物所需的物理特性的新型液晶化合物,即耐热、耐光等稳定性、广泛的液晶相温度范围、高清除点、与其他化合物良好的相容性、大的折射率各向异性、大的介电各向异性和小的粘度。该液晶化合物提供为化合物(1):其中,例如,R1为具有1至20个碳的烷基;环A1和环B1为1,4-环己基或1,4-苯基;Z1和Z2为单键,-CH2CH2-,-CH═CH-或-C≡C-;L1为氟;L2、Y1和Y2为氢、氟或氯;X1为卤素,-C≡N或具有1至10个碳的烷基,在烷基中,任意-CH2-可以被-O-或-S-所替代,m为1,n为0。