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:
Oct. 07, 2014
Filed:
Nov. 24, 2008
Nakjin Seong, Kyungbuk, KR;
Wonyong Park, Daegu, KR;
Sangsoo Han, Seoul, KR;
Namkyun Cho, Kyungbuk, KR;
Kyuman Lee, Kyungbuk, KR;
Jaeseo Kim, Chungbuk, KR;
Nakjin Seong, Kyungbuk, KR;
Wonyong Park, Daegu, KR;
Sangsoo Han, Seoul, KR;
Namkyun Cho, Kyungbuk, KR;
Kyuman Lee, Kyungbuk, KR;
Jaeseo Kim, Chungbuk, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
The exemplary embodiment suggests an apparatus and a method for driving a light source of a backlight unit. The apparatus for driving the light source of the backlight unit comprises a plurality of LED columns; a power output terminal and feedback terminals connected to the LED columns; and an LED driver sequentially driving the LEDs according to sequentially delayed PWM signals. The LED driver decides an operable number of LED channel based on the signals input through the feedback terminals, and sequentially delays the PWM signals with the phase difference controlled by the number of LED channel.