液晶动态响应实验研究  

Experimental research on dynamic response of liquid crystal

作　　者：刘晓梦[1] 布秀敏[2] 秦禹[3] 孙艳梅 叶文江[1] 

机构地区：[1]河北工业大学理学院,天津300401 [2]河北交通职业技术学院,河北石家庄050091 [3]河北工业大学信息工程学院,天津300401 [4]正定县第八中学,河北石家庄050800

出　　处：《实验技术与管理》2015年第3期77-80,共4页Experimental Technology and Management

基　　金：国家自然科学基金项目(11274088;11374087;11304074);河北省自然科学基金项目(A2014202123);河北省教育厅项目(QN2014130);河北省高校重点学科资助课题

摘　　要：为了分析液晶的响应时间并判断其响应速度,开发了液晶动态响应测试装置,并对强锚泊扭曲排列向列液晶的动态响应过程进行了测量。当脉冲信号施加于液晶盒上时,液晶的响应时间,即上升时间随电压的增大而减小;当脉冲信号撤消时,液晶的响应时间,即下降时间基本保持不变。与液晶动力学理论数值计算结果进行比较表明,实验结果和理论结果基本吻合。In order to analyze the dynamic response time and then judge the problems about the response speed of liquid crystal,the experiment equipment using for testing the dynamic response of liquid crystal has been exploited.And the dynamic response process of twisted-nematic liquid crystal with strong-anchoring is also measured.When an impulse is applied on the liquid crystal cell,the response time,or the turn-on time,decreases with increasing voltage;when the applied impulse is removed,the response time,or the turn-off time,remains unchanged in general.By comparing with the numerical calculation getting from the kinetic theory of liquid crystal,it is found that the results of theoretical calculation and the ones from experiment consist with each other.

关 键 词：液晶 动态响应 响应时间 扭曲向列相 动力学理论 

分 类 号：O753[理学—晶体学]