公开(公告)号：US20210217998A1

公开(公告)日：2021-07-15

申请号：US17250662

申请日：2019-01-25

Applicant: Samsung Display Co., Ltd.

Inventor： Ji-hee SON ,  Sungchul KIM ,  Jiyoung CHOUNG

IPC: H01L51/56 ,  H01L51/00 ,  H01L27/32

Abstract: A method of manufacturing a display apparatus includes: forming a first lower lift-off layer, a first upper lift-off layer, and a first photoresist layer on a substrate on which a first pixel electrode is formed; forming a first masking layer including a first photoresist pattern, a first upper lift-off pattern, and a first lower lift-off pattern, which expose the first pixel electrode, by partially removing the first photoresist layer, the first upper lift-off layer, and the first lower lift-off layer; forming a first light emitting layer and a first counter electrode on the first pixel electrode by using the first masking layer; forming a first passivation layer on the first counter electrode; and removing the first masking layer.