公开(公告)号：US20230352517A1

公开(公告)日：2023-11-02

申请号：US18024008

申请日：2020-09-04

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Akira OHSHIMA ,  YASUSHI ASAOKA

IPC: H01L27/15

CPC classification number: H01L27/156

Abstract: A display device includes a substrate, and a light-emitting element provided on the substrate and including a light-emitting portion, a first reflective layer overlapping with the light-emitting portion and reflecting external light, and a light-exiting portion adjacent to the light-emitting portion. The light-emitting portion includes a first electrode, a first light-emitting layer, and a second electrode that are provided in this order from the substrate side to the first reflective layer side, and the light-exiting portion includes a first opening that is an opening of the first reflective layer and a second reflective layer reflecting light from the light-emitting portion to the first opening.

公开(公告)号：US20230369545A1

公开(公告)日：2023-11-16

申请号：US18027904

申请日：2020-10-07

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Akira OHSHIMA ,  JUN SAKUMA ,  Sentaro KIDA ,  MAKOTO KITAGAWA

IPC: H01L33/50 ,  H01L33/36 ,  H01L33/14

CPC classification number: H01L33/502 ,  H01L33/36 ,  H01L33/14 ,  H01L2933/0025

Abstract: A light-emitting element producing method includes: a step of forming a first-charge transport layer on a first electrode; a step of applying a first photosensitive resin composition, containing first quantum dots, to the first-charge transport layer, and forming a first-quantum-dot containing layer; a step of applying a second photosensitive resin composition, containing second quantum dots, to the first-quantum-dot containing layer, and forming a second-quantum-dot containing layer; a step of forming a second-charge transport layer on the second-quantum-dot containing layer; and a step of forming a second electrode on the second-charge transport layer.

公开(公告)号：US20230091271A1

公开(公告)日：2023-03-23

申请号：US17798828

申请日：2020-03-02

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Akira OHSHIMA ,  SHIGERU AOMORI ,  JUN SAKUMA ,  YASUSHI ASAOKA

IPC: H01L51/52

Abstract: A display device includes a substrate and a light-emitting element provided on the substrate. The light-emitting element includes a light-emitting portion and a first light-exiting portion. The light-emitting portion includes, in order from the substrate side, a first electrode, a light-emitting layer, a second electrode, and a light absorption layer. The first light-exiting portion includes a first light-reflecting layer provided at an incline on the substrate, and a first opening provided in the light absorption layer.