Title:
バックライトユニットの光源駆動装置及び方法
Document Type and Number:
Japanese Patent JP5571162
Kind Code:
B2
Abstract:
An apparatus for driving a light source of a backlight unit includes: light sources; and a light source driver operating in an idle mode according to an input dimming signal and reducing a dimming value of an output dimming signal for adjusting brightness of the light sources by stages by mixing PWM control and PWM count control in a time-series manner to thus implement low dimming in the idle mode, wherein the dimming value of the output dimming signal is lowered to a first dimming value through the PWM control during a first period and subsequently lowered to a second dimming value lower than the first dimming value through the PWM count control during a second period that follows the first period.
Inventors:
Ann and Yonghung
Kim and John Day
Kim and サンギュ
Yoon and ビョンギ
Park and ミンウ
Kim and John Day
Kim and サンギュ
Yoon and ビョンギ
Park and ミンウ
Application Number:
JP2012273471A
Publication Date:
August 13, 2014
Filing Date:
December 14, 2012
Export Citation:
Assignee:
Elgey Display Company Limited
International Classes:
H05B37/02; G02F1/133; G09G3/20; G09G3/34; G09G3/36
Attorney, Agent or Firm:
Yoshitaka Sonoda
Yoshinori Kobayashi
Yoshinori Kobayashi