Title:
APPARATUS AND METHOD FOR CONTROLLING BACK LIGHT
Document Type and Number:
WIPO Patent Application WO/2011/155668
Kind Code:
A1
Abstract:
Disclosed herein is a backlight control apparatus, including an LED backlight drive unit driving an LED backlight module and a control unit outputting an enable signal deterministic of whether to drive the LED backlight drive unit or not to the LED backlight drive unit, and stepwisely decreasing or increasing the duty ratio of a PWM control signal to control the brightness of the LED backlight module and outputting it to the LED backlight drive unit.
Inventors:
SHIN JUN HO (KR)
Application Number:
PCT/KR2010/006772
Publication Date:
December 15, 2011
Filing Date:
October 05, 2010
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
SHIN JUN HO (KR)
SHIN JUN HO (KR)
International Classes:
G09G3/36; G09G3/32
Foreign References:
| US20090207123A1 | 2009-08-20 | |||
| JP2002056996A | 2002-02-22 | |||
| JP2008300112A | 2008-12-11 | |||
| KR20020093714A | 2002-12-16 |
Attorney, Agent or Firm:
JIN, Cheong Woong et al. (Deuk-Young Bldg. 423-5,Dogok-dong, Gangnam-Gu, Seoul 135-855, KR)
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Claims: