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:
Jul. 15, 2014
Filed:
Dec. 07, 2011
Won Sik OH, Seoul, KR;
Youngsup Kwon, Gwangmyeong-si, KR;
Jaekyu Park, Asan-si, KR;
Eun Chul Shin, Cheonan-si, KR;
Jaeeun Um, Cheonan-si, KR;
Won Sik Oh, Seoul, KR;
Youngsup Kwon, Gwangmyeong-si, KR;
Jaekyu Park, Asan-si, KR;
Eun Chul Shin, Cheonan-si, KR;
Jaeeun Um, Cheonan-si, KR;
Samsung Display Co., Ltd., , KR;
Abstract
A backlight unit including: at least one light emitting diode ('LED') string having an anode, which receives a string current, and a chassis-grounded cathode; and a current source control unit which receives a driving current and outputs the string current to the at least one LED string, where the current source control unit senses the driving current and compensates for the string current based on the sensed driving current and a reference voltage.