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.

Date of Patent:
Jul. 05, 2016

Filed:

Apr. 28, 2014
Applicant:

Samsung Display Co., Ltd., Yongin, Gyeongggi-do, KR;

Inventors:

Sanghyun Lee, Incheon, KR;

Seonhye Kim, Yongin-si, KR;

Jeong Bong Lee, Busan, KR;

MiKyung Kang, Ulsan, KR;

Kyung-Uk Choi, Gunpo-si, KR;

Assignee:

SAMSUNG DISPLAY CO., LTD., Yongin, Gyeonggi-Do, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2006.01); G09G 3/34 (2006.01); G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0851 (2013.01); G09G 3/342 (2013.01); H05B 33/0815 (2013.01); H05B 33/0827 (2013.01); G09G 3/3648 (2013.01); G09G 2320/064 (2013.01); G09G 2320/0646 (2013.01); Y02B 20/346 (2013.01);
Abstract

A backlight unit includes a dimming signal generator configured to generate first and second pulse width modulation signals, first and second driving blocks configured to receive a driving voltage to emit a light, a controller configured to receive the first and second pulse width modulation signals and an output signal from one of the first and second driving blocks to generate a voltage control signal, and a voltage converter configured to control a level of an input voltage in response to the voltage control signal to generate the driving voltage.


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