期刊论文

中文

液晶与显示

1007-2780

2014

29

6

873-880

10.3788/yjyxs20142906.0873

国家自然科学基金（No.11074054,No.61378095） 武汉轻工大学研究生教育创新基金（No.2012cx022）

本校为第一机构

近年来,液晶器件的响应速度得到了很大的改善,响应时间已经从25ms减少到3ms甚至更短。虽然这种改善与液晶层厚度的变薄有关,但主要原因应该归因于新型液晶材料的发展和使用。色序液晶显示能产生更高质量的图像,但前提是必须有能快速工作的液晶材料。液晶材料的旋转黏度系数、双折射和液晶层的厚度是影响液晶器件响应时间的3个主要因素。本文以液晶双折射这一因素为主线,从液晶化合物结构的角度介绍了影响液晶双折射数值的若干因素,包括中心环结构、中心基团上的桥键、极性基团和侧位-F对液晶双折射的影响等,延长分子的π电子共轭长度能有效提高液晶的双折射。本文列举了国内外已合成的高双折射向...

In recent years, the response speed of LCDs has been greatly improved. The response time has been reduced from 25 ms to 3 ms or less. Although this improvement related to reducing thickness of the liquid crystal layer, the main reason was attributed to the studying and using of novel liquid crystal mixtures. Sequential color LCDs can produce higher quality images, but prerequisite is to have fast response liquid crystal materials. The three main factors which influence the response time of the LCDs are the rotational viscosity coefficient of th...