申请人:Chisso Corporation
公开号:EP0164721A2
公开(公告)日:1985-12-18
A novel pyridine derivative capable of increasing the dielectric anisotropy value (△ε) or optical anisotropy value (An) of the liquid crystal composition obtained by comprising the derivative and lowering the driving voltages of liquid crystal display elements having used the composition, and also a liquid crystal composition containing the pyridine derivative are provided, which pyridine derivative is expressed by the formula
wherein R represents an alkyl group or an alkoxy group each of 1-10 carbon atoms; X represents
or .
; Y represents
or
; when Y is
, Z represents
and A represents F, Cℓ or cyano group; and when Y is
, Z represents
and A represents an alkyl group or an alkoxy group each of 1 - 10 carbon atoms.
本发明提供了一种新型吡啶衍生物,该衍生物能够提高由该衍生物得到的液晶组合物的介电各向异性值(△ε)或光学各向异性值(An),并降低使用了该组合物的液晶显示元件的驱动电压,还提供了一种含有该吡啶衍生物的液晶组合物,该吡啶衍生物由式表示,其中 R 代表烷基或烷氧基,每个基团的碳原子数均为 1-10 个;X 代表 或 .;Y 代表 或 ;当 Y 为 时,Z 代表 和 A 代表 F、Cℓ 或氰基;当 Y 为 时,Z 代表 和 A 代表烷基或烷氧基,每个基团的碳原子数均为 1-10 个。