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:
Feb. 24, 2015
Filed:
Aug. 26, 2011
Min-soo Choi, Chungcheongnam-do, KR;
Jin-won Jang, Chungcheongnam-do, KR;
Won-sik OH, Chungcheongnam-do, KR;
Min-Soo Choi, Chungcheongnam-do, KR;
Jin-Won Jang, Chungcheongnam-do, KR;
Won-Sik Oh, Chungcheongnam-do, KR;
Samsung Display Co., Ltd., , KR;
Abstract
A light source apparatus includes a plurality of light source parts, a power supply part, a current selection part and a current control part. The plurality of the light source parts are connected in parallel and the power supply part provides power to a first terminal of each of the light source parts. The current selection part selects the current level of one of the light source parts as a reference current level. The current control part adjusts the levels of the currents flowing through the light source parts to be substantially equal to the reference current level. Selection of the light source part that provides the reference current level is dynamically changed.