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. 15, 2009
Filed:
Oct. 30, 2007
Moon-shik Kang, Seongnam-si, KR;
Myung-joong Youn, Seoul, KR;
Jheen-hyeok Park, Seongnam-si, KR;
Gun-woo Moon, Daejeon, KR;
Hyun-ki Yoon, Gyeongsangbuk-do, KR;
Eun-seok Choi, Jeongju-si, KR;
Moon-Shik Kang, Seongnam-si, KR;
Myung-Joong Youn, Seoul, KR;
Jheen-Hyeok Park, Seongnam-si, KR;
Gun-Woo Moon, Daejeon, KR;
Hyun-Ki Yoon, Gyeongsangbuk-do, KR;
Eun-Seok Choi, Jeongju-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A lamp driving device includes first, second, and third voltage converters. The first voltage converter converts a direct current (DC) power voltage to a first pulse voltage. The second voltage converter converts the DC power voltage to a second pulse voltage. The third voltage converter generates a high alternating current (AC) voltage based on the first and second pulse voltages. The lamp driving device generates the high AC voltage without a transformer, so that a manufacturing cost of a display apparatus adopting the lamp driving device may be reduced.