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. 23, 2014
Filed:
Jul. 25, 2012
Applicants:
Shunichiro Kuroki, Tokyo, JP;
Kenichi Hashizume, Gunma, JP;
Inventors:
Shunichiro Kuroki, Tokyo, JP;
Kenichi Hashizume, Gunma, JP;
Assignee:
Empire Technology Development LLC, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); F21K 99/00 (2010.01);
U.S. Cl.
CPC ...
G02B 6/0003 (2013.01); G02B 6/0073 (2013.01); G02B 6/0065 (2013.01); F21K 9/52 (2013.01);
Abstract
A backlight system includes a first light guide layer, first light sources, a second light guide layer and second light sources. The first light sources are configured to emit first light into the first light guide layer. The second light guide layer is arranged on a first surface of the first light guide layer. The second light guide layer contains light-excited fluorophores. The second light sources are configured to emit second light into the second light guide layer in synchronization with the emission of the first light sources.