向列相液晶在电场作用下的第一类弗雷德里克兹转变

The First Class of Frederick Azee Transformatio of Nematic Liquid Crystal Under the Action of the Electric Field

本论文针对向列相液晶,从自由能的角度出发,分弹性形变和电场作用两个部分,在理论上分析了其在电场作用下的第一类弗雷德里克兹转变,得到了阈值电场与液晶材料物理性质之间的关系,并与磁场作用下的第一类弗雷德里克兹转变进行了比较。阈值电压的结论可用于测定液晶材料的展曲弹性系数。

The paper analyzes the first class of Frederick Azee transformation of nematic liquid crystal under action of electric field.The transformation is divided into two parts:elastic deformation and action of electric field.Therefore,the paper gets relationship between threshold voltage and physical nature of the liquid crystal material.Besides make the comparison of the first class of Frederick Azee transformation of nematic liquid crystal under action of magnetic field.The conclusion of the threshold voltage can be used to measure the splay elastic coefficient of liquid crystal material.