Three series of compounds 1‐21 were prepared by using 2‐, 3‐, and 4‐pyridinemethanol as terminalgroup of calamiticliquidcrystals. These compounds have some similarities in their phase behavior. They all exhibit SmA phase. A tilt smectic phase, SmC, will be formed when their flexible alkoxy chain is longer than hexoxy group. The profound difference between them is that the compounds 15‐17 possess
Optically active compounds, their preparation and their use in liquid crystal compositions and liquid crystal optical modulators
申请人:HITACHI, LTD.
公开号:EP0322862A2
公开(公告)日:1989-07-05
The invention relates to optically active compounds represented by the general formula I
wherein n, R1, R2, R3, R4., Q1, Q2, Q3, and M are defined as in the specification, methods and intermediates for their preparation, liquid crystal compositions comprising at least one optically active compound of formula I and their use in electrooptical display, switching and modulation devices.
本发明涉及通式 I 所代表的光学活性化合物,其中 n、R1、R2、R3、R4.
其中 n、R1、R2、R3、R4.、Q1、Q2、Q3 和 M 的定义如说明书中所述,还涉及制备它们的方法和中间体、包含至少一种式 I 的光学活性化合物的液晶组合物以及它们在光电显示、开关和调制装置中的用途。
Optically active compounds, liquid crystal compositions comprising said compounds, and liquid crystal optical modulators using said compositions
申请人:HITACHI, LTD.
公开号:EP0341713A2
公开(公告)日:1989-11-15
The invention relates to optically active compounds represented by the general formula I
wherein m, n, Ri, R2, R3. R4, Q1, Q2, Q3, and M are defined as in the specification, methods and intermediates for their preparation, liquid crystal compositions comprising at least one optically active compound of formula I and their use in electrooptical display, switching and modulation devices.
本发明涉及通式 I 所代表的光学活性化合物
其中m、n、Ri、R2、R3.R4、Q1、Q2、Q3 和 M 在说明书中的定义、制备它们的方法和中间体、包含至少一种式 I 的光学活性化合物的液晶组合物以及它们在光电显示、开关和调制装置中的用途。