摘要
Flexoelectric-induced voltage shift in a weak anchoring hybrid aligned nematic liquid crystal cell is investigatedtheoretically.Based on the elastic theory of liquid crystal and the variation method,the equations for the bulkand the boundary of the cell are derived.By computer simulation,the dependence of the shift voltage on the sum ofthe flexoelectric coefficients and the anchoring energy strength is obtained.As a result,a novel method to determine thesum of the flexoelectric coefficients by measuring the shift voltage is put forward.
Flexoelectric-induced voltage shift in a weak anchoring hybrid aligned nematic fiquid crystai cell is investigated theoretically. Based on the elastic theory of liquid crystal and the variation method, the equations for the bulk and the boundary of the cell are derived. By computer simulation, the dependence of the shift voltage on the sum of the ttexoelectric coefficients and the anchoring energy strength is obtained. As a result, a novel method to determine the sum of the flexoelectric coefficients by measuring the shift voltage is put forward.
基金
Supported by the Natural Science Foundation of Hebei Province under Grant No. A2010000004
the National Natural Science Foundation of China under Grant No. 60736042
the Key Subject Construction Project of Hebei Province University
the Research Project of Hebei Education Department under Grant No. Z2011133
