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:
Dec. 11, 2012
Filed:
Apr. 18, 2008
Qi Hong, Orlando, FL (US);
Ruibo LU, Orlando, FL (US);
Xinyu Zhu, Orlando, FL (US);
Thomas X. Wu, Oviedo, FL (US);
Shin-tson Wu, Oviedo, FL (US);
Qi Hong, Orlando, FL (US);
Ruibo Lu, Orlando, FL (US);
Xinyu Zhu, Orlando, FL (US);
Thomas X. Wu, Oviedo, FL (US);
Shin-Tson Wu, Oviedo, FL (US);
University of Central Florida Research Foundation, Inc., Orlando, FL (US);
Abstract
A circular polarizer comprising a single linear polarizer producing a linear state of polarization and at least one phase retardation film layered with the single linear polarizer. In a first embodiment, the at least one phase retardation film includes at least one uniaxial A-plate phase retardation film and at least one uniaxial C-plate phase retardation film. In a second embodiment of the invention, the circular polarizer includes a linear polarizer and at least one biaxial phase retardation film layered with the linear polarizer. In another example of the circular polarize of the second embodiment, at least one uniaxial A-plate phase retardation film and/or at least one uniaxial C-plate phase retardation film is also layer with the linear polarize and the biaxial phase retardation film.