公开(公告)号：US11361717B2

公开(公告)日：2022-06-14

申请号：US16709005

申请日：2019-12-10

Applicant: LG Display Co., Ltd.

Inventor： Taeyoung Lee ,  KyoungDon Woo ,  KyungRok Kim ,  MyungGi Lim ,  Jisu Choi

IPC: G09G3/3291 ,  G09G3/20

Abstract: A sensing circuit includes: a current source that outputs a direct current; an integrator that integrates a sensing current and the direct current, which is higher than the sensing current, to output an integrated value composed of the sum of a sensing voltage and a direct current voltage; and a subtractor that takes the sensing voltage from the integrated value outputted from the integrator, but not the direct current voltage.