公开(公告)号：US20190197959A1

公开(公告)日：2019-06-27

申请号：US16224243

申请日：2018-12-18

Applicant: LG Display Co., Ltd.

Inventor： Dong-In NOH ,  Young-Ho KIM

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275

Abstract: An OLED display device capable of improving picture quality by turning off an OLED element regardless of a charging time and input data of each subpixel is discussed. A reference voltage supplied to a reference line is supplied to an OLED element during at least one OLED off time after a light-emitting time and before a charging time according to control of a scan gate line and a sense gate line to turn off the OLED element. The reference voltage is lower than a threshold voltage of the OLED element.