The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 2008
Filed:
Apr. 02, 2004
Richard Harding, Hants, GB;
Shirley Ann Marden, Parkstone, GB;
Ian Victor Edward Hassall, Christchurch, GB;
Janice Mccreary, Southampton, GB;
Karl Skjonnemand, Southampton, GB;
Richard Harding, Hants, GB;
Shirley Ann Marden, Parkstone, GB;
Ian Victor Edward Hassall, Christchurch, GB;
Janice McCreary, Southampton, GB;
Karl Skjonnemand, Southampton, GB;
Merck Patent GmbH, Darmstadt, DE;
Abstract
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.