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:
May. 05, 2009
Filed:
Nov. 06, 2002
Applicants:
Kim Slaney, Dorset, GB;
Mark Verrall, Wiltshire, GB;
Owain Parri, Poole, GB;
Karl Skjonnemand, Southampton, GB;
Tara Perrett, Bournemouth, GB;
Inventors:
Kim Slaney, Dorset, GB;
Mark Verrall, Wiltshire, GB;
Owain Parri, Poole, GB;
Karl Skjonnemand, Southampton, GB;
Tara Perrett, Bournemouth, GB;
Assignee:
Merck Patent Gesellschaft Mit Beschrankter Haftung, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
G03C 1/76 (2006.01); G03C 1/492 (2006.01); G03C 1/494 (2006.01); C09K 19/52 (2006.01); C09K 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to an optically biaxial film with cholesteric structure, methods and materials for its preparation, its use as retardation or compensation film in optical devices like liquid crystal displays, and to compensators and liquid crystal displays comprising such a biaxial retardation film.