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:
Jul. 19, 2005
Filed:
Apr. 16, 2002
Applicants:
Richard C. Allen, Lilydale, MN (US);
Thomas Bachels, Grenzach-Wyhlen, DE;
Jürg Fünfschilling, Basel, CH;
Martin Schadt, Seltisberg, CH;
Hubert Seiberle, Weil am Rein, DE;
Inventors:
Richard C. Allen, Lilydale, MN (US);
Thomas Bachels, Grenzach-Wyhlen, DE;
Jürg Fünfschilling, Basel, CH;
Martin Schadt, Seltisberg, CH;
Hubert Seiberle, Weil am Rein, DE;
Assignee:
3M Innovative Properties Company, Saint Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F001/1335 ;
U.S. Cl.
CPC ...
Abstract
Compensation of a liquid crystal display can be achieved using a compensation structure, having, in the following order: a) a first o-plate; b) a first retarder; c) a liquid crystal cell; d) a second retarder; and e) a second o-plate. The first and second retarders can be c-plates or biaxial retarders.