公开(公告)号：US20220140015A1

公开(公告)日：2022-05-05

申请号：US17347851

申请日：2021-06-15

Applicant: Samsung Display Co., LTD.

Inventor： SOLJI KIM ,  JUNGJIN YANG ,  DONGHOON KIM ,  JIN WOO PARK ,  JINSOOK BANG ,  SEOKJAE LEE ,  SUNHYE LEE ,  SANGHOON YIM

IPC: H01L27/32 ,  H01L51/52

Abstract: A display device includes a first pixel area including a first pixel electrode and a first organic light emitting layer, a tandem pixel area including a tandem pixel electrode, a first tandem organic light emitting layer and a second tandem organic light emitting layer, a capping layer including a first capping layer corresponding to the first organic light emitting layer and a tandem capping layer corresponding to both the first tandem organic light emitting layer and the second tandem organic light emitting layer, and a common electrode between the first capping layer and the first organic light emitting layer and between the tandem capping layer and the second tandem organic light emitting layer. Each of the first capping layer and the tandem capping layer has a thickness, and the thickness of the tandem capping layer is smaller than the thickness of the first capping layer.