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. 09, 2014
Filed:
Sep. 23, 2011
Applicants:
Seung-wan Kim, Asan-si, KR;
Won-sik OH, Asan-si, KR;
Young-sup Kwon, Gwangmyeong-si, KR;
Hwan-woong Lee, Asan-si, KR;
Inventors:
Seung-Wan Kim, Asan-si, KR;
Won-Sik Oh, Asan-si, KR;
Young-Sup Kwon, Gwangmyeong-si, KR;
Hwan-Woong Lee, Asan-si, KR;
Assignee:
Samsung Display Co., Ltd., , KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0815 (2013.01); H05B 33/0842 (2013.01);
Abstract
A method of driving a light source includes receiving an alternating current ('AC') voltage from outside, generating a first direct current ('DC') voltage based on the AC voltage, generating a second DC voltage, corresponding to a difference between a driving voltage of a light source part and the first DC voltage, based on the first DC voltage, and outputting a sum of the first DC voltage and the second DC voltage to the light source part.