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:
Jun. 28, 2016
Filed:
Dec. 28, 2012
Applicant:
Seoul Semiconductor Co., Ltd., Ansan-si, KR;
Inventors:
Hye Man Jung, Ansan-si, KR;
Hyun Gu Kang, Ansan-si, KR;
Oh Seok Kim, Ansan-si, KR;
Young Eun Yang, Ansan-si, KR;
Assignee:
Seoul Semiconductor Co., Ltd., Ansan-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01); H05B 33/08 (2006.01); G09G 3/32 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3696 (2013.01); G09G 3/32 (2013.01); H05B 33/0824 (2013.01); G09G 2360/145 (2013.01);
Abstract
A backlight driving apparatus that drives a backlight unit having a plurality of LEDs is provided, which includes a rectifying unit rectifying an AC voltage and generating a driving voltage for the plurality of LEDs, a plurality of connection changing units changing connection relations between the plurality of LEDs depending on a level of the driving voltage, and a light output compensation unit generating a compensation voltage using the driving voltage and selectively supplying the compensation voltage to the plurality of LEDs.