The invention relates to a polymerised liquid crystal (LC) film comprising
at least one photoisomerisable compound and having a pattern of regions
with different retardation and/or different orientation of the LC
material, to methods of preparing such a film, and to its use as
alignment layer, optical retardation film or optical waveguide in liquid
crystal displays or other optical or electrooptical components or
devices, or for decorative or security applications.