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:
Sep. 21, 2004
Filed:
Oct. 29, 2002
Hendrik Johannes Boudewijn Jagt, Eindhoven, NL;
Hugo Johan Cornelissen, Eindhoven, NL;
Dirk Jan Broer, Eindhoven, NL;
Cees Bastiaansen, Montfort, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
An arrangement for providing polarized light to, e.g. a LCD, is disclosed. The arrangement comprises a substrate ( ) and a top layer ( ). The substrate ( ) is preferably optically anisotropic and the top layer ( ) is either isotropic or anisotropic. The respective indices of refraction are chosen such that polarization separation occurs at the interface ( ) between the substrate ( ) and the top layer ( ). Furthermore, the indices of refraction are chosen such that there are no restrictions on the angle of incidence (&thgr; ) of the incoming light (L), and hence obviating the need for collimation of the incoming light (L). The top layer ( ) comprises light outcoupling structures, internally or externally.