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.

Date of Patent:
May. 21, 2019

Filed:

Aug. 15, 2016
Applicant:

Glo Ab, Lund, SE;

Inventors:

Miljenko Modric, Santa Clara, CA (US);

Kazunori Okui, Newark, CA (US);

Clinton Carlisle, Sunnyvale, CA (US);

Assignee:

GLO AB, Lund, SE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01); F21V 8/00 (2006.01); H05B 33/08 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0073 (2013.01); G02B 6/0068 (2013.01); G02B 6/0083 (2013.01); G02F 1/1335 (2013.01); H05B 33/086 (2013.01); G02B 6/0055 (2013.01);
Abstract

A light bar includes a plurality of first color light emitting LEDs including a first subset of first color light emitting LEDs and a second subset of first color light emitting LEDs, a plurality of second color light emitting LEDs, where the second color is different from the first color, and a plurality of third color light emitting LEDs, where the third color is different from the first and the second colors. The second subset of first color light emitting LEDs are electrically connected in series with a larger electrical load than the first subset of first color light emitting LEDs. This light bar electrical configuration allows compensation and correction for locations on the light guide plate used in back light units where imperfect mixing of the 3 primary colors provided by the individual LED emitters on the light bar occurs.


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