FIVE-RING LIQUID CRYSTAL COMPOUND HAVING A NITROGEN-CONTAINING HETEROCYCLIC RING, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
申请人:Tanaka Hiroyuki
公开号:US20110193022A1
公开(公告)日:2011-08-11
Provided is a liquid crystal compound having general physical properties necessary for a compound, stability to heat, light or the like, a wide liquid crystal phase temperature range, a high clearing point, an excellent compatibility with other liquid crystal compounds, a large refractive index anisotropy and a large dielectric anisotropy. Provided are a liquid crystal composition including the liquid crystal compound, and a liquid crystal display device containing the liquid crystal composition.
The compound is represented by formula (1):
wherein, for example, R
1
is alkyl having 1 to 20 carbons; at least one of the rings A
1
to A
6
is pyrimidine-2,5-diyl or pyridine-2,5-diyl and the others are 1,4-cyclohexylene or 1,4-phenylene; Z
1
to Z
6
are a single bond; L
1
to L
4
is hydrogen or halogen; X
1
is hydrogen, halogen, —C≡N or alkyl having 1 to 10 carbons; and l, m, n, o, p and q are 0 or 1 and l+m+n+o+p+q=3.
提供了一种液晶化合物,具有化合物所需的一般物理特性,对热、光等具有稳定性,具有广泛的液晶相温度范围、高清晰点、与其他液晶化合物的优异兼容性、大的折射率各向异性和大的介电各向异性。提供了包括该液晶化合物的液晶组合物和包含该液晶组合物的液晶显示装置。该化合物由公式(1)表示:其中,例如,R1是具有1到20个碳的烷基;A1到A6中至少有一个是嘧啶-2,5-二基或吡啶-2,5-二基,其余为1,4-环己基或1,4-苯基;Z1到Z6是单键;L1到L4是氢或卤素;X1是氢、卤素、—C≡N或具有1到10个碳的烷基;l、m、n、o、p和q为0或1,且l+m+n+o+p+q=3。