公开(公告)号：US20240284698A1

公开(公告)日：2024-08-22

申请号：US18560922

申请日：2021-07-13

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Kota ADACHI ,  YASUSHI ASAOKA

IPC: H10K50/15 ,  H10K50/115 ,  H10K85/10 ,  H10K101/00 ,  H10K101/30

CPC classification number: H10K50/15 ,  H10K50/115 ,  H10K85/111 ,  H10K85/115 ,  H10K85/151 ,  H10K2101/30 ,  H10K2101/80

Abstract: A light-emitting element includes: a first electrode; a second electrode; a light-emitting layer positioned between the first electrode and the second electrode, and containing quantum dots and a first hole transport material; and a hole transport layer positioned between the first electrode and the light emitting layer, and containing a second hole transport material solubility of which to a solvent in which the quantum dots are soluble is lower than solubility of the first hole transport material. A difference in ionization potential between the second hole transport material and the first hole transport material is smaller than a difference in ionization potential between the second hole transport material and the quantum dots.

公开(公告)号：US20240315110A1

公开(公告)日：2024-09-19

申请号：US18577362

申请日：2021-09-02

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Kota ADACHI ,  TSUYOSHI KAMADA ,  YASUSHI ASAOKA

IPC: H10K59/80 ,  H10K59/12

CPC classification number: H10K59/80515 ,  H10K59/1201

Abstract: A display device includes: a pixel electrode; a counter electrode provided over the pixel electrode; and a functional layer provided between the pixel electrode and the counter electrode. The functional layer has a first portion overlapping an end of the pixel electrode, and a second portion overlapping a middle of the pixel electrode. The first portion is thicker than the second portion.