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：US11859116B2

公开(公告)日：2024-01-02

申请号：US17356463

申请日：2021-06-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yunku Jung ,  Hyekyoung Choi ,  Sungwoon Kim ,  Jaekook Ha

IPC: C09K11/62 ,  C09K11/56 ,  C09K11/88 ,  C09K11/70 ,  C09K11/02 ,  C09K11/08 ,  B82Y20/00 ,  B82Y40/00 ,  H10K50/115

CPC classification number: C09K11/626 ,  C09K11/025 ,  C09K11/0883 ,  C09K11/565 ,  C09K11/70 ,  C09K11/883 ,  B82Y20/00 ,  B82Y40/00 ,  H10K50/115

Abstract: A quantum dot composition may include: a first solvent; a second solvent different from the first solvent; first quantum dots including a hole-transporting ligand; and second quantum dots including an electron-transporting ligand, wherein the first solvent and the second solvent are miscible solvents having different boiling points from each other, a degree of dispersion of the first quantum dots is greater in the first solvent than in the second solvent, and a degree of dispersion of the second quantum dots is greater in the second solvent than in the first solvent.

公开(公告)号：US11697763B2

公开(公告)日：2023-07-11

申请号：US17356463

申请日：2021-06-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yunku Jung ,  Hyekyoung Choi ,  Sungwoon Kim ,  Jaekook Ha

IPC: C09K11/62 ,  C09K11/56 ,  C09K11/88 ,  C09K11/70 ,  C09K11/02 ,  C09K11/08 ,  B82Y20/00 ,  B82Y40/00 ,  H10K50/115

CPC classification number: C09K11/626 ,  C09K11/025 ,  C09K11/0883 ,  C09K11/565 ,  C09K11/70 ,  C09K11/883 ,  B82Y20/00 ,  B82Y40/00 ,  H10K50/115

Abstract: A quantum dot composition may include: a first solvent; a second solvent different from the first solvent; first quantum dots including a hole-transporting ligand; and second quantum dots including an electron-transporting ligand, wherein the first solvent and the second solvent are miscible solvents having different boiling points from each other, a degree of dispersion of the first quantum dots is greater in the first solvent than in the second solvent, and a degree of dispersion of the second quantum dots is greater in the second solvent than in the first solvent.