公开(公告)号：US10475393B2

公开(公告)日：2019-11-12

申请号：US15826000

申请日：2017-11-29

Applicant: LG DISPLAY CO., LTD.

Inventor： KyoungWon Lee ,  ChangHoon Jeon

IPC: G09G3/32 ,  G09G3/34 ,  G09G3/30 ,  G09G3/3258 ,  G09G3/3233 ,  G09G3/3266

Abstract: An electroluminescent display device includes a pixel area including a plurality of sub-pixels displaying an image signal at a specific refresh rate, a plurality of ELVDD lines electrically connected to the plurality of sub-pixels, a plurality of data lines electrically connected to the plurality of sub-pixels, a plurality of scan lines electrically connected to the plurality of sub-pixels, a plurality of EM lines electrically connected to the plurality of sub pixels, a scan driver sequentially supplying a scan signal to the plurality of scan lines and sequentially supplying an EM signal having a specific duty ratio pattern configured to control a dimming level of the pixel area to the plurality of EM lines, and a driving unit electrically connected to the plurality of data lines and the scan driver, and configured to control the dimming level according to a dimming control signal.