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:
Apr. 05, 2022
Filed:
Mar. 30, 2021
Applicant:
Lumileds Llc, San Jose, CA (US);
Inventors:
Mehdi Aas, Eindhoven, NL;
Nicola Bettina Pfeffer, Eindhoven, NL;
Arjen Gerben Van der Sijde, Eindhoven, NL;
Erno Fancsali, Heusden-Zolder, BE;
Assignee:
Lumileds LLC, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/13357 (2006.01); F21V 8/00 (2006.01); G02F 1/1333 (2006.01);
U.S. Cl.
CPC ...
G02F 1/13362 (2013.01); G02B 6/0023 (2013.01); G02B 6/0025 (2013.01); G02B 6/0031 (2013.01); G02B 6/0056 (2013.01); G02F 1/133314 (2021.01);
Abstract
A backlight apparatus can include a light emitting element configured to emit visible light. The backlight apparatus can include a polarizing device including a prism situated to receive the visible light and to polarize the visible light to generate polarized light. The backlight apparatus can include a light guide panel configured to receive the polarized light at an input surface facing the polarizing device and to distribute the polarized light to a major surface of the light guide panel facing a display screen.