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. 22, 2020
Filed:
Jan. 13, 2020
Applicant:
Lumileds Holding B.v., Schipol, NL;
Inventors:
Floris Maria Hermansz Crompvoets, Bunde, NL;
Erno Fancsali, Heusden-Zolder, BE;
Assignee:
Lumileds Holding B.V., Schipol, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0078 (2013.01); G02B 6/009 (2013.01); G02B 6/0021 (2013.01); G02B 6/0025 (2013.01); G02B 6/0031 (2013.01); G02B 6/0073 (2013.01);
Abstract
An LED backlight system having a plurality of backlight segments including an integral light waveguide, each backlight segment supporting a sidelight emitting LED. A light guide is included in each of the plurality of backlight segments and defines a cavity having a top and sidewalls, with the sidelight emitting LED positioned in the cavity. At least one of a reflective layer and a top out-coupling structure can be positioned between the top of the cavity and the sidelight emitting LED.