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:
Aug. 27, 2013
Filed:
Apr. 30, 2010
Yu Jin Jang, Gyunggi-do, KR;
Jin Soo Lee, Gyeongsangbuk-do, KR;
MO Jeong Yang, Seoul, KR;
IN Jeong Cheon, Seoul, KR;
Yu Jin Jang, Gyunggi-do, KR;
Jin Soo Lee, Gyeongsangbuk-do, KR;
Mo Jeong Yang, Seoul, KR;
In Jeong Cheon, Seoul, KR;
Samsung Electro-Mechanics Co., Ltd., Gyunggi-Do, KR;
Abstract
An apparatus for driving a backlight unit including a lamp unit including a plurality of lamps includes an error amplifying unit configured to detect an error voltage between a feedback voltage corresponding to a current flowing to the lamp unit and a preset first reference voltage, a soft signal generation unit configured to generate a soft start signal of the lamp unit, a high-frequency signal driving signal generating unit configured to generate a high-frequency driving signal of the of the lamp unit, a high-frequency driving termination determining unit configured to generate a high-frequency driving termination signal when the error voltage is equal in voltage level to the soft start signal, and a high-frequency driving signal blocking unit configured to block the high-frequency driving signal in advance when the high-frequency driving termination signal is inputted.