液晶与显示2018，Vol.33Issue(2)：101-108,8.DOI:10.3788/YJYXS20183302.0101
蓝相液晶的旋光特性与消除
Optical rotatory of blue phase liquid crystal and its elimination
摘要
Abstract
In order to realize the simulation of optical rotatory of blue phase liquid crystal,the one-di-mensional model is established,and the optical rotatory of blue phase liquid crystal between crossed linear or circle polarizers is simulated,and the reflection is investigated.The theoretical and simulated results of optical rotatory of cholesteric liquid crystal are compared.Compared with the structures of cholesteric and blue phase liquid crystal,the cholesteric liquid crystal with high tilt angle is founded as the one-dimensional model of blue phase liquid crystal,and the tilt angle can be obtained from the or-der parameter of isotropic phase.Based on the one-dimensional model,the simulated result of optical rotatory of blue phase liquid crystal agrees well with the experimental results.The transmittances of blue phase liquid crystal with large pitch between the crossed linear or circle polarizers are simulated, and the reflection for the ambient light is also simulated.The results show that the circle polarizers can effectively eliminate the optical rotatory and Bragg reflection of large pitch blue phase liquid crystal in visible light range,the average rotatory angle in the whole visible light range is less than 0.06°from 5.2°for crossed linear polarizers.The results will have significant effect on improving the display characteristics of blue phase liquid crystal display.关键词
蓝相液晶/旋光能力/布拉格反射/圆偏光片Key words
blue phase liquid crystal/optical rotatory/Bragg reflection/circle polarizer分类
信息技术与安全科学引用本文复制引用
马红梅,孙玉宝..蓝相液晶的旋光特性与消除[J].液晶与显示,2018,33(2):101-108,8.基金项目
国家自然科学基金(No.61475042,No.11304074)Supported by National Natural Science Foundation of China(No.61475042,No.11304074) （No.61475042,No.11304074）
