公开(公告)号：US20230037057A1

公开(公告)日：2023-02-02

申请号：US17390246

申请日：2021-07-30

Applicant: Sharp Display Technology Corporation

Inventor： HYWEL HOPKIN ,  VALERIE BERRYMAN-BOUSQUET ,  ANDREW KAY ,  ALEX YUDIN ,  ALESSANDRO MINOTTO

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00 ,  H01L51/52

Abstract: A top-emitting pixel device is disclosed. The pixel device may include a reflective bottom electrode disposed over a substrate, a first charge transport layer disposed over the reflective bottom electrode, an emissive layer disposed over the first charge transport layer, and a second charge transport layer disposed over the emissive layer. Further, the pixel device may include a patterned transparent polymer electrode disposed over the second charge transport layer and extending laterally to cover an emissive area of the top-emitting pixel device, and a patterned auxiliary electrode disposed at least partially over the patterned transparent polymer electrode outside of the emissive area of the top-emitting pixel device to make direct electrical contact with the patterned transparent polymer electrode.