Abstract
The electro-optical effects occurring under the action of AC and DC electric field in hybrid aligned nematic layers placed between crossed polarizers were simulated numerically. Switching between dark and bright states of such systems was analyzed. The role of flexoelectricity in the behavior of the layers was studied, thanks to the fact that the flexoelectric contribution to switching was present in the DC case and cancelled in the AC case. It was found that fast switching was favored by negative flexoelectric parameters or by large difference between voltages at which the both states existed.
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