Patent ID: 8684415

Claim:
A method of forming a security device in which a liquid crystal material is applied to a carrier substrate to form a liquid crystal layer, said method comprising the following steps: applying an at least partially absorbing layer co-extensive with or to at least a part of one side of the liquid crystal layer; applying an adhesive layer to the absorbing layer; transferring the partially formed security device to a base substrate so that it is adhered thereto by the adhesive layer; removing the carrier substrate leaving a surface of the liquid crystal layer exposed; and applying at least one customising region co-extensive with or to at least a part of the exposed surface of the liquid crystal layer in selected regions, said at least one customising region having non-colourshifting properties modifies the colour shifting properties of the liquid crystal layer to provide at least one optically variable region covered by the at least one customising region which contrasts with at least one other optically variable region not covered by the at least one customising region, the at least one customising region modifies the colour shifting properties of the liquid crystal layer by changing the angle at which the colourshift is perceived and the modification of the colourshifting properties is apparent to an observer as a change in an angle of view at which different colours of reflected light are observed.