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. 26, 2011
Filed:
Oct. 31, 2006
Applicant:
Christophe Fery, Niedererschach, DE;
Inventor:
Christophe Fery, Niedererschach, DE;
Assignee:
Thomson Licensing, Boulogne-Billancourt, FR;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
According to the invention, the extractor is a reflection concentrator. The entry section of the extractor has a larger area than its exit section. The reflecting side walls of the extractor have a suitable shape so that it makes an angle called the cut-off angle θ, which corresponds to a limiting wavelength λfor transmission from this extractor for a given optical cavity. Applied to diode-based image displays, the invention broadens the viewing angles and improves the colour purity of the images displayed.