公开(公告)号：US20230128398A1

公开(公告)日：2023-04-27

申请号：US17874702

申请日：2022-07-27

Applicant: Samsung Display Co., Ltd.

Inventor： JAEHYUN LEE ,  SEUL-KI KIM ,  KAP SOO YOON ,  KI SU JIN ,  SEUNG-HA CHOI ,  JONGBUM CHOI

IPC: H01L27/32 ,  H01L51/56

Abstract: A display device includes a pixel, a first pad electrode disposed around the pixel, a buffer layer disposed on the first pad electrode, a first insulating layer disposed on the buffer layer, and a second pad electrode disposed on the first insulating layer, the second pad electrode being electrically connected to the first pad electrode through a contact hole in the first insulating layer and the buffer layer. A first step, a second step below the first step, and a third step below the second step are defined on the first insulating layer and the buffer layer around the first pad electrode and the second pad electrode.