公开(公告)号：US20240074248A1

公开(公告)日：2024-02-29

申请号：US18495815

申请日：2023-10-27

Applicant: Japan Display Inc.

Inventor： Shinichi KAWAMURA ,  Nobuo IMAI ,  Hiroshi OGAWA

IPC: H10K59/122 ,  H10K59/80

CPC classification number: H10K59/122 ,  H10K59/8051 ,  H10K59/8052 ,  H10K71/231

Abstract: According to one embodiment, a display device comprises a first lower electrode, a rib including a first pixel aperture, a partition including a lower portion on the rib and an upper portion protruding from a side surface of the lower portion, a first upper electrode, and a first organic layer between the first lower electrode and the first upper electrode. The lower portion includes a bottom layer and a stem layer on the bottom layer. The bottom layer is formed of a material which has a smaller etching rate to a mixed acid containing phosphoric acid, nitric acid, and acetic acid than the stem layer and which is conductive.