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:
Aug. 26, 2014

Filed:

Dec. 02, 2009
Applicants:

Jonghoon Kim, Seoul, KR;

Bogun Seo, Gyeonggi-do, KR;

Byungsam Min, Gyeonggi-do, KR;

Hyunwoo Jeon, Gyeonggi-do, KR;

Jonggu Heo, Kyungbuk, KR;

Inventors:

Jonghoon Kim, Seoul, KR;

Bogun Seo, Gyeonggi-do, KR;

Byungsam Min, Gyeonggi-do, KR;

Hyunwoo Jeon, Gyeonggi-do, KR;

Jonggu Heo, Kyungbuk, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/38 (2006.01); G09G 3/34 (2006.01);
U.S. Cl.
CPC ...
G09G 3/342 (2013.01); G09G 2310/0237 (2013.01); G09G 2320/064 (2013.01); G09G 2310/024 (2013.01);
Abstract

A liquid crystal display (LCD) device and method of the driving the same is disclosed. According to an embodiment of the present invention, an LCD device includes a liquid crystal display panel; a plurality of backlight sources configured to provide light to the liquid crystal display panel; a scanning backlight controller configured to generate a pulse width modulation (PWM) signal for controlling a turn-on time and a turn-off time of the light sources and a current control signal for controlling a driving current of the backlight light sources; and a plurality of light source drivers configured to turn on and off the backlight sources in response to the PWM signal and control the driving current of the backlight sources in response to the current control signal.


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