公开(公告)号：US20250056958A1

公开(公告)日：2025-02-13

申请号：US18632190

申请日：2024-04-10

Applicant: Samsung Display Co., LTD.

Inventor： Yun Ku JUNG ,  Yunhyuk KO ,  Won-Jun PARK ,  Chul Soon PARK ,  Seonhui BAEK ,  Sooho LEE ,  Jungho JO ,  Chang Yeol HAN

IPC: H10K50/115 ,  B82Y40/00 ,  C09K11/02 ,  C09K11/88

Abstract: A quantum dot complex according to an embodiment comprises a quantum dot; and a ligand bound to a surface of the quantum dot, wherein the surface of the quantum dot is provided with a plurality of coupling parts to which the ligand is bound; wherein the plurality of coupling parts include a first coupling part and a second coupling part. The ligand includes a first ligand bound to the first coupling part and a second ligand bound to the second coupling part, wherein the second ligand includes a halogen element. The halogen element is contained in an amount of 1 at % to 12 at % to the total content of the quantum dot complex.

公开(公告)号：US20240324272A1

公开(公告)日：2024-09-26

申请号：US18437551

申请日：2024-02-09

Applicant: Samsung Display Co., LTD.

Inventor： Yun Ku JUNG ,  Yunhyuk KO ,  Sehun KIM ,  Jonghoon KIM ,  Seung Uk NOH ,  Won-Jun PARK ,  Chul Soon PARK ,  Jongwoo SHIN ,  Sooho LEE ,  Jae Kook HA

IPC: H10K50/16 ,  H10K102/00

CPC classification number: H10K50/166 ,  H10K2102/351

Abstract: A light emitting device includes: a first electrode that is a reflective electrode; a first electron transport layer disposed on the first electrode; a second electron transport layer disposed on the first electron transport layer; an emission layer disposed on the second electron transport layer, and a second electrode positioned on the emission layer and that is a transflective electrode, wherein the first electron transport layer and the second electron transport layer include different metal oxides, and a thickness of the first electron transport layer is greater than a thickness of the second electron transport layer.