Chroman compound, liquid crystal composition including the compound and liquid crystal display element including the liquid crystal composition
申请人:Sugiura Teruyo
公开号:US20050247910A1
公开(公告)日:2005-11-10
The compound (1) according to the invention has general solid-state properties necessary for a compound, stability against heat, light and the like, a suitable optical anisotropy, a suitable dielectric anisotropy, and excellent compatibility with other liquid crystalline compounds. The liquid crystal composition according to the invention contains at least one compound represented by formula (1). The liquid crystal display element according to the invention contains the composition. The compound (1) is represented by formula (1):
wherein Ra, Rb, A
1
, A
2
, A
3
, A
4
, A
5
, A
6
, Z
11
, Z
12
, Z
13
, Z
14
, Z
15
, Z
16
, Y
1
, Y
2
, k, l, m, n, p and q are as defined in the specification.
本发明的化合物(1)具有化合物所需的一般固态性质,对热、光等具有稳定性,具有适当的光学各向异性、适当的介电各向异性,并且与其他液晶化合物具有优异的相容性。本发明的液晶组合物含有至少一种由式(1)表示的化合物。本发明的液晶显示元件含有该组合物。化合物(1)由式(1)表示:其中Ra、Rb、A1、A2、A3、A4、A5、A6、Z11、Z12、Z13、Z14、Z15、Z16、Y1、Y2、k、l、m、n、p和q的定义如说明书所述。