Behaviour of nematik layer oriented by electric field and pressure gradient in the striped liquid crystal cell

The results of an optical investigation of a nematic layer acted by a pressure gradient and an electric field in a sandwich-lace liquid crystal cell with striped electrodes are presented. The time-dependent harmonic pressure gradient changed an initially homeotropic orientation of layer of the nematic mixture with a positive permitivity anisotropy. The stabilizing electric voltage was applied to the each stripe. As a value of the voltage could be varied for different stripes independently they showed an individual reaction on the pressure gradient.