公开(公告)号：US20210201718A1

公开(公告)日：2021-07-01

申请号：US17119754

申请日：2020-12-11

Applicant: LG Display Co., Ltd.

Inventor： Sung-Chul HA ,  Man-Gyu PARK ,  Mi-So KIM

IPC: G09G3/00

Abstract: Disclosed herein is a sensing device including a sensing channel terminal connected to a pixel through a sensing line, a first power terminal to which a displaying reference voltage is input, a second power terminal to which a sensing reference voltage different form the displaying reference voltage is input, a third power terminal to which a sampling reference voltage is input, a sampling capacitor having a first electrode to which the sampling reference voltage is applied, a sensing set-up switch connected between the second power terminal and the sensing channel terminal, a first sampling switch connected between the sensing channel terminal and a second electrode of the sampling capacitor, and a second sampling switch connected between the first power terminal and the second electrode of the sampling capacitor.