Abstract
AbstractThe relaxation from the field‐induced homeotropic state to the equilibrium planar state of cholesteric liquid crystals is investigated. By using an optical retro‐reflection technique, we have isolated the dynamics of the orientation and pitch of cholesteric helices, and through scattering and microscopy techniques, we have determined domain size as a function of time for various surface treatments. These three factors determine the viewing angle, color, and brightness of a display. An analysis of the significance of surface selection in cholesteric displays is presented.
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