公开(公告)号：US20150187286A1

公开(公告)日：2015-07-02

申请号：US14452692

申请日：2014-08-06

Applicant: SAMSUNG DISPLAY CO., LTD,

Inventor： SEOK HWAN LEE ,  DAE-SIK LEE ,  HWAN WOONG LEE ,  SEUNG YOUNG CHOI

IPC: G09G3/34 ,  G06F3/14

CPC classification number: G06F3/1423 ,  G09G3/3406 ,  G09G3/342 ,  G09G2320/0233 ,  G09G2360/145

Abstract: A display device is provided. The display device includes a display panel, a backlight unit, and a luminance comparison unit. The backlight unit is configured to supply light to the display panel. The luminance comparison unit is configured to compare a measured luminance of the display panel with a reference luminance range. The backlight unit includes a light source unit, a DC-DC converter, and a driving current controller. The DC-DC converter is configured to supply a driving voltage to the light source unit, and the driving current controller is configured to control a driving current flowing to the light source unit based on the comparison result of the luminance comparison unit.

Abstract translation: 提供显示装置。 显示装置包括显示面板，背光单元和亮度比较单元。 背光单元被配置为向显示面板提供光。 亮度比较单元被配置为将显示面板的测量亮度与参考亮度范围进行比较。 背光单元包括光源单元，DC-DC转换器和驱动电流控制器。 DC-DC转换器被配置为向光源单元提供驱动电压，并且驱动电流控制器被配置为基于亮度比较单元的比较结果来控制流向光源单元的驱动电流。