论文部分内容阅读
通过解析推导和数值计算的方法 ,得到了平衡态指向矢满足的微分方程和边界条件 .研究了表面弹性能K1 3项对磁场作用下的弱锚定向列液晶盒Fr啨ｅｄｅｒｉｃｋｓｚ转变性质的影响 .结果表明 ,表面弹性能K1 3项的存在对液晶系统的自由能有很大的影响 ,从而改变转变的性质 ,诱导液晶盒在阈值点发生一级Fr啨ｅｄｅｒｉｃｋｓｚ转变 .给出了发生一级转变的物理条件 ,它除了与液晶的结构和材料有关外 ,还依赖于液晶表面弹性能K1 3项 ,同时给出了由此判断K1 3项是否存在的检验方法
The differential equations and the boundary conditions of the equilibrium state director are obtained by means of analytical derivation and numerical calculation.The influence of surface elastic energy K1 3 on Fr 啨 edericksz transformation of weak anchoring nematic liquid crystal cell under magnetic field is studied. The results show that the existence of surface elastic energy K1 3 has a great influence on the free energy of the liquid crystal system, so as to change the nature of the transition and induce the first Fr 啨 edericksz transition at the threshold point of the liquid crystal cell. Of the physical conditions, which in addition to the liquid crystal structure and material related, but also depends on the elastic surface of the liquid crystal K1 3, at the same time given K1 3 to determine whether there is a test method