Abstract
In a one-dimensional situation of a liquid crystal sample between two electrodes perpendicular to thex-axis, it is thex-component of the electrical inductionDx and not the electrical fieldEx which is independent of thex-coordinate. In the present paper the equation of director motion is derived in a more precise way, and some applications for ferroelectric liquid crystals are discussed.
WithFd the distortion energy andFs the surface interaction energy it turns out that the expression