公开(公告)号：US20220336561A1

公开(公告)日：2022-10-20

申请号：US17671826

申请日：2022-02-15

Applicant: Samsung Display Co., Ltd.

Inventor： GOEUN CHA ,  ILNAM KIM ,  KYUNGTEA PARK ,  JONGHYUN LEE ,  KEUMDONG JUNG ,  KANGBIN JO

IPC: H01L27/32 ,  G09G3/3266 ,  G06V40/13

Abstract: A display device may include a pixel and a sensor. The pixel may include an emission element and a pixel driving circuit. The pixel driving circuit may receive a first scan signal and a second scan signal. The sensor may include a light sensing element and a sensor driving circuit. The sensor driving circuit may include a reset transistor, an amplifying transistor, and an output transistor. The reset transistor may receive a reset voltage and the first scan signal and be connected to a first sensing node. The amplifying transistor may receive a first driving voltage and be connected between the first sensing node and a second sensing node. The output transistor may receive the second scan signals and be connected between the second sensing node and a readout line.