Article with optically modified cholesteric liquid crystal layer
AssigneeKoninklijke Philips Electronics N.V.
InventorsPeter Van De Witte, Johan Lub
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Abstract
An article has transferred onto its surface a region-wise optically modified cholesteric liquid crystalline layer. The layer includes at least one single-film layer including a number of regions having cholesterically ordered material which differ from one another in pitch. The layer can include a holographic image.
Claims2
An article having transferred onto a surface of it a region-wise optically modified cholesteric liquid crystalline layer, comprising at least one single-film layer of cholesterically ordered material that includes a plurality of different pitches at different depths of the cholesterically ordered material, depth being defined as a direction perpendicular to the surface.
Dependencies are inferred from the claim text.