公开(公告)号：US20210280833A1

公开(公告)日：2021-09-09

申请号：US17033624

申请日：2020-09-25

Applicant: Samsung Display Co., Ltd.

Inventor： Seungmook LEE ,  Heunggyu KIM ,  Jonghyeok LEE

IPC: H01L51/56 ,  H01L51/50 ,  H01L51/00

Abstract: A method of manufacturing an organic light-emitting device includes a heat treatment performed at a set or predetermined temperature range when forming a hole transport layer utilizing a solution process. When an emission layer is formed thereon utilizing a solution process, a mixed layer may be formed to a suitable thickness for improving hole injection into the emission layer. An organic light-emitting device may be manufactured utilizing the method.