公开(公告)号：US12262580B2

公开(公告)日：2025-03-25

申请号：US17545440

申请日：2021-12-08

Applicant: Japan Display Inc.

Inventor： Jun Nitta

IPC: H10K50/822 ,  H10K59/122 ,  H10K71/16

Abstract: According to one embodiment, a display device includes first and second lower electrodes, a second insulating layer arranged between the first and second lower electrodes, and having first and second openings overlapping the first and second lower electrodes, a partition arranged on the second insulating layer, a first organic layer arranged in the first opening and covering the first lower electrode, and a first upper electrode covering the first organic layer. The partition has a first layer formed of a metal material and a second layer protruding from a first side surface of the first layer toward the first opening. The first upper electrode is in contact with the first side surface.

公开(公告)号：US12052880B2

公开(公告)日：2024-07-30

申请号：US17574812

申请日：2022-01-13

Applicant: Japan Display Inc.

Inventor： Hayata Aoki ,  Masumi Nishimura ,  Jun Nitta

IPC: H10K50/12 ,  H10K50/17 ,  H10K71/00

CPC classification number: H10K50/12 ,  H10K50/17 ,  H10K71/00

Abstract: According to one embodiment, a display device includes a lower electrode, a second insulating layer including an opening overlapping the lower electrode, an organic layer including a light-emitting layer and a functional layer, disposed in the opening and covering the lower electrode and an upper electrode covering the organic layer. The functional layer includes a first region located between the lower electrode and the light-emitting layer and a second region including an end surface located directly above the second insulating layer. A dopant concentration of a guest material in the second region is lower than the dopant concentration of the guest material in the first region.