公开(公告)号：US20250056959A1

公开(公告)日：2025-02-13

申请号：US18717409

申请日：2022-02-10

Applicant: Sharp Display Technology Corporation

Inventor： YUSUKE SAKAKIBARA

IPC: H10K50/115 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  H10K71/20

Abstract: A blue light-emitting element includes a first electrode and a second electrode, and a function layer placed between the first electrode and the second electrode and including at least a blue light-emitting layer containing quantum dots. The blue light-emitting layer contains at least some amount of first ligands, which are at least one type of ligand selected from a ligand being a halogen atom and a ligand being a sulfur atom, and includes a first region, which is a partial region of the blue light-emitting layer including at least part of an end portion of the blue light-emitting layer, and a second region other than the first region. The number of the first ligands contained per unit volume in the first region is greater than the number of the first ligands contained per unit volume in the second region.