公开(公告)号：US10181570B2

公开(公告)日：2019-01-15

申请号：US15827809

申请日：2017-11-30

Applicant: Samsung Display Co. Ltd.

Inventor： Jun Hong Park ,  Jung Soo Lee ,  Gwang Min Cha ,  Jeong Min Park

IPC: H01L27/10 ,  H01L51/10 ,  H01L27/12 ,  G02F1/1362 ,  H01L27/32 ,  G02F1/1343

Abstract: A display device includes a substrate, a semiconductor layer disposed on the substrate, a first insulating layer disposed on the semiconductor layer, a first conductive layer disposed on the first insulating layer and electrically connected to the semiconductor layer via a first contact hole, which is defined through the first insulating layer, a second insulating layer disposed on the first conductive layer, and a second conductive layer disposed on the second insulating layer and electrically connected to the first conductive layer via a second contact hole, which is defined through the second insulating layer, where the first and second contact holes overlap each other, and a residual layer, which includes a portion of the second insulating layer, is disposed in the first contact hole.