公开(公告)号：US20230265305A1

公开(公告)日：2023-08-24

申请号：US18169020

申请日：2023-02-14

Applicant: Samsung Display Co., Ltd.

Inventor： Yunku Jung ,  Yohan Suh ,  Yunhyuk Ko ,  Chulsoon Park ,  Sooho Lee

IPC: C09D11/50 ,  H10K50/115 ,  C09D11/033 ,  H10K85/30 ,  B82Y30/00 ,  C09K11/88

CPC classification number: C09D11/50 ,  H10K50/115 ,  C09D11/033 ,  H10K85/30 ,  B82Y30/00 ,  C09K11/883

Abstract: An ink composition for a light-emitting device may include: quantum dots; and a mixed solvent of a first solvent, a second solvent, and a third solvent, wherein the first solvent may be a C6-C50 aromatic hydrocarbon, the second solvent may be a C1-C20 aliphatic hydrocarbon, and the third solvent may be a ternary alkyl phosphine and/or a ternary alkyl amine.

公开(公告)号：US20230180504A1

公开(公告)日：2023-06-08

申请号：US18070310

申请日：2022-11-28

Applicant: Samsung Display Co., Ltd.

Inventor： Yunhyuk Ko ,  Changhee Lee ,  Yunku Jung ,  Changyeol Han

IPC: H10K50/16 ,  H10K50/115 ,  H10K59/123

CPC classification number: H01L51/5072 ,  H01L51/502 ,  H01L27/3248

Abstract: A light-emitting device and an electronic apparatus including the light-emitting device. The light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode, wherein the interlayer may include an emission layer and an electron transport layer, the electron transport layer may be between the emission layer and the second electrode, the electron transport layer may include an electron transporting particle, the electron transporting particle may include a core, a first shell covering the core, and a second shell covering the first shell, the first shell may include a first compound, the second shell may include a second compound, the core may include a third compound, and the first compound and the second compound may each independently include an oxide, a chalcogenide, or any combination thereof.

公开(公告)号：US20230038085A1

公开(公告)日：2023-02-09

申请号：US17849542

申请日：2022-06-24

Applicant: Samsung Display Co., Ltd.

Inventor： Hyunmi Doh ,  Changhee Lee ,  Jingoo Kang ,  Sehun Kim ,  Yonghwi Kim ,  Jonghoon Kim ,  Seunguk Noh ,  Myoungjin Park ,  Yunku Jung

IPC: C01G9/02 ,  H01L51/50 ,  H01L51/56

Abstract: A method of manufacturing an inorganic oxide particle having an inorganic oxide core and a hydroxyl group bonded to a surface thereof includes: preparing a first composition including an inorganic oxide core precursor and a proton supply compound; and heating the first composition. Additional embodiments provide a method of manufacturing an inorganic oxide layer including an inorganic oxide particle manufactured by the method, and a light-emitting device including an inorganic oxide layer manufactured by the method.

公开(公告)号：US20220367830A1

公开(公告)日：2022-11-17

申请号：US17660722

申请日：2022-04-26

Applicant: Samsung Display Co., Ltd.

Inventor： Yunku Jung ,  Changhee Lee ,  Hyekyoung Choi ,  Jaekook Ha

IPC: H01L51/50 ,  H01L51/56 ,  H01L51/00 ,  C07C245/12 ,  C07C245/06 ,  C07C321/06 ,  C07F15/00 ,  C07F19/00 ,  C07D209/86 ,  C07D401/12 ,  C07D409/12 ,  C07C211/61 ,  C07D307/91 ,  C07D405/12 ,  C07C211/54 ,  C07C211/55 ,  C07D487/04 ,  C07C255/34 ,  C07C255/31 ,  C07D235/18 ,  C07D213/06 ,  C07D401/04 ,  C07C15/28 ,  C07D403/10 ,  C07D251/24 ,  C07D239/26 ,  C07D519/00 ,  C07D403/14 ,  C07D249/08 ,  C07F5/06 ,  C07F1/02

Abstract: Disclosed are a light-emitting device and a method of manufacturing the same. The light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode and including a quantum dot including a first ligand bonded to a surface thereof; and a charge transport layer including an inorganic nanoparticle including a second ligand bonded to a surface thereof, wherein an interface between the emission layer and the charge transport layer includes a cross-link in which the first ligand on the surface of the quantum dot and the second ligand on the surface of the inorganic nanoparticle are linked by a cross-linking agent.

公开(公告)号：US20210043863A1

公开(公告)日：2021-02-11

申请号：US16920730

申请日：2020-07-05

Applicant: Samsung Display Co., Ltd.

Inventor： Yunku Jung

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/56 ,  C09K11/06 ,  C09K11/02 ,  H01L51/00

Abstract: A quantum dot composition of an embodiment includes: a quantum dot; a ligand combined with a surface of the quantum dot; and a ligand scavenger having a nucleophilic reaction group.