一种新型液晶垂直取向膜  

Novel Vertical Alignment Film for Nematic Liquid Crystals

作　　者：张伶莉[1] 姚丽双[1] 费春红[1] 吕凤珍[1] 宋静[1] 彭增辉[1] 宣丽[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室

出　　处：《液晶与显示》2006年第5期456-459,共4页Chinese Journal of Liquid Crystals and Displays

基　　金：国家自然科学基金(No.50473040);吉林省科技厅基金(No.20050520)资助项目

摘　　要：采用离子沉积法在玻璃基板表面制备了十四烷基磺酸盐自组装膜,用带有该自组装膜的基板制成的液晶器件呈现出垂直取向效果。通过自组装反应过程分析,认为自组装膜表面的纵向沟纹引起了液晶的垂直排列。实验发现,当自组装膜烷烃碳链长度大于11个C原子就可获得垂直取向。这种取向膜制作过程简单、热稳定性好,非常有望应用于多畴垂直取向模式的液晶显示器。A self-assembled film of n-tetradecyl sulfosalt was fabricated in aqueous solution. The nematic liquid crystals could be aligned vertically on the glass substrate with the self-assembled film. By analysis of the chemical reaction of film-forming, it indicated that ordered vertical topography induced homeotropic alignment. If the alkyl group length was larger than 11C, the self-assembled film would induce vertical alignment. This type of alignment film can be fabricated easily, and has good thermalstability. It has some potential to be used in multi-domain-vertical （MVA） display.

关 键 词：液晶 垂直取向 自组装膜 

分 类 号：O753.2[理学—晶体学]