应用液晶动力学理论和差分迭代方法,考虑上液晶挠曲电特性情形下研究强锚泊混合排列向列相液晶盒撤掉电压时的动态响应过程,数值计算得到液晶盒透过率随时间的变化.结果表明:随展曲和弯曲挠曲电系数和的绝对值| e11+ e33|的增加,液晶盒的响应时间逐渐减小,当|e11+e33| =50pC·m.1时,响应时间与忽略挠曲电效应的情况相比缩短了一半.
Based on dynamic theory of liquid crystal and finite-difference iterative method, dynamic response of strong anchoring hybrid aligned nematic (HAN) liquid crystal cell as removing applied voltage was studied. Flexoelectricity of liquid crystal material was considered. Time-dependences of transmittance through a HAN cell were obtained. It indicates that response time decreases with increasing of absolute value of the sum of splay and bend flexoelectric coefficient l ell + e331. Especially, at l ell + e331 = 50 pC-m-1 response time is half shortened relative to the case with no flexoelectric effect.