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. 16, 2006
Filed:
Nov. 29, 2003
Tai-cheng Yu, Tu-Chen, TW;
Charles Leu, Fremont, CA (US);
Ga-lane Chen, Fremont, CA (US);
Hon Hai Precision Ind. Co., Ltd., Taipei Hsien, TW;
Abstract
A polarized light source system () includes a light guide plate (), a light source (), a lamp cover (), a quarter wave plate (), an upward prism plate () and a downward prism plate (). The light guide plate defines an optical inputting surface and an optical outputting surface interconnecting therewith. The light source and the lamp cover are stationed next to the optical inputting surface. The upward prism plate stationed next to the optical outputting surface defines a plurality of upward micro-prisms () on a surface opposite thereto. The downward prism plate stationed next to the upward prism plate includes a brightness enhancing film (), and a plurality of downward micro-prisms () on a surface facing the upward prism plate. The upward and downward micro-prisms engaged with each other. The quarter wave plate includes a reflective film on a backing surface.