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:
Feb. 19, 2019
Filed:
Oct. 25, 2016
Applicant:
Lg Display Co., Ltd., Seoul, KR;
Inventors:
DaeSeok Oh, Paju-si, KR;
Moonsoo Chung, Paju-si, KR;
Assignee:
LG DISPLAY CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01); G09G 3/34 (2006.01); G02F 1/1343 (2006.01); G02F 1/1368 (2006.01); G02F 1/1333 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3406 (2013.01); G09G 3/3648 (2013.01); G02F 1/1368 (2013.01); G02F 1/13439 (2013.01); G02F 1/134309 (2013.01); G02F 2001/133302 (2013.01); G02F 2001/133601 (2013.01); G02F 2201/121 (2013.01); G02F 2201/123 (2013.01); G02F 2203/30 (2013.01); G09G 3/3614 (2013.01); G09G 2300/0426 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0247 (2013.01); G09G 2320/0276 (2013.01); G09G 2320/064 (2013.01); G09G 2320/0646 (2013.01);
Abstract
A dimming control method of a backlight unit of a liquid crystal display (LCD) device driven at a driving frequency (f) of 60 Hz or lower includes a first step of driving the backlight unit using a first dimming value, and a second step of driving the backlight unit using a second dimming value higher than the first dimming value. The first step and the second step are alternately repeated and a repetition number of the second step within one period T of a driving frequency (f) is set to satisfy a condition of '{(60/f)−1}'. Here, f is a natural number lower than 60.