公开(公告)号：US20220112425A1

公开(公告)日：2022-04-14

申请号：US17450252

申请日：2021-10-07

Applicant: Samsung Display Co., Ltd. ,  NIC LAB Co.,LTD.

Inventor： Yunku Jung ,  Changhee Lee ,  Hanyoung Choi ,  Yunhyuk Ko ,  Changho Cho ,  Jaekook Ha

IPC: C09K11/02 ,  C09K11/88 ,  C09K11/08 ,  C09D11/50 ,  C09D11/52 ,  C09D11/037 ,  H01L51/00 ,  H01L51/50

Abstract: A quantum dot includes: a nanoparticle; and a ligand represented by Formula 1 on a surface of the nanoparticle: A1 is an anchoring group linked to the surface of the nanoparticle, and A1 may be selected from groups represented by Formulae A-1 to A-4: wherein * in Formulae A-1 to A-4 indicates a binding site to a neighboring atom.

公开(公告)号：US12173209B2

公开(公告)日：2024-12-24

申请号：US17450252

申请日：2021-10-07

Applicant: Samsung Display Co., Ltd. ,  NIC LAB Co.,LTD.

Inventor： Yunku Jung ,  Changhee Lee ,  Hanyoung Choi ,  Yunhyuk Ko ,  Changho Cho ,  Jaekook Ha

IPC: C09K11/02 ,  B82Y20/00 ,  B82Y40/00 ,  C09D5/22 ,  C09D11/037 ,  C09D11/50 ,  C09D11/52 ,  C09K11/08 ,  C09K11/88 ,  H01L33/50 ,  H10K50/115

Abstract: A quantum dot includes: a nanoparticle; and a ligand represented by Formula 1 on a surface of the nanoparticle: A1 is an anchoring group linked to the surface of the nanoparticle, and A1 may be selected from groups represented by Formulae A-1 to A-4: wherein * in Formulae A-1 to A-4 indicates a binding site to a neighboring atom.

公开(公告)号：US12139652B2

公开(公告)日：2024-11-12

申请号：US17450252

申请日：2021-10-07

Applicant: Samsung Display Co., Ltd. ,  NIC LAB Co.,LTD.

Inventor： Yunku Jung ,  Changhee Lee ,  Hanyoung Choi ,  Yunhyuk Ko ,  Changho Cho ,  Jaekook Ha

IPC: C09K11/02 ,  B82Y20/00 ,  B82Y40/00 ,  C09D5/22 ,  C09D11/037 ,  C09D11/50 ,  C09D11/52 ,  C09K11/08 ,  C09K11/88 ,  H01L33/50 ,  H10K50/115

Abstract: A quantum dot includes: a nanoparticle; and a ligand represented by Formula 1 on a surface of the nanoparticle: A1 is an anchoring group linked to the surface of the nanoparticle, and A1 may be selected from groups represented by Formulae A-1 to A-4: wherein * in Formulae A-1 to A-4 indicates a binding site to a neighboring atom.

公开(公告)号：US20240318073A1

公开(公告)日：2024-09-26

申请号：US18610489

申请日：2024-03-20

Applicant: Samsung Display Co., LTD. ,  UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)

Inventor： Wonjun Park ,  Bongsoo Kim ,  Myeongjae Lee ,  Yunhyuk Ko ,  Sehun Kim ,  Seonhui Baek ,  Yunku Jung ,  Hyobin Ham

IPC: C09K11/06 ,  C09K11/02 ,  H10K50/115

CPC classification number: C09K11/06 ,  C09K11/02 ,  H10K50/115

Abstract: Embodiments provide is a quantum dot composition that includes quantum dots, a cross-linking agent including four or more moieties represented by Formula A, and a mixed solvent including a first solvent, a second solvent, and a third solvent. The second solvent has a higher boiling point than the first solvent, the second solvent has a lower surface tension than the first solvent, and the third solvent includes a compound represented by Formula 3. Formula A and Formula 3 are explained in the specification:






Ar2—R2.  [Formula 3]

公开(公告)号：US11895856B2

公开(公告)日：2024-02-06

申请号：US16895590

申请日：2020-06-08

Applicant: Samsung Display Co., Ltd.

Inventor： Yunku Jung ,  Minki Nam ,  Hyunmi Doh ,  Yunhyuk Ko ,  Sungwoon Kim ,  Jaehoon Kim ,  Myoungjin Park ,  Jae Hong Park ,  Junwoo Park

IPC: C09K11/06 ,  C09K11/02 ,  C09K11/54 ,  C09K11/56 ,  H10K50/115 ,  H10K50/00 ,  H10K50/12 ,  H10K50/844 ,  H10K50/86 ,  H10K59/38 ,  H10K71/00 ,  H10K85/30 ,  H10K85/60 ,  H10K102/10 ,  H10K102/00

CPC classification number: H10K50/115 ,  C09K11/06 ,  H10K50/00 ,  H10K50/12 ,  H10K50/844 ,  H10K50/865 ,  H10K59/38 ,  H10K71/00 ,  H10K85/30 ,  H10K85/631 ,  C09K2211/18 ,  H10K2102/103 ,  H10K2102/351

Abstract: A quantum dot composition includes a quantum dot, a ligand to bind to a surface of the quantum dot, an additive having an amine group, and a precursor comprising an organometallic compound, the composition forming a modified quantum dot having a reformed surface characteristic. A light emitting element including the modified quantum dot may have improved lifespan, luminous efficiency, and material stability.

公开(公告)号：US20230227722A1

公开(公告)日：2023-07-20

申请号：US18155972

申请日：2023-01-18

Applicant: Samsung Display Co., Ltd.

Inventor： Yunku Jung ,  Yunhyuk Ko ,  Yohan Suh ,  Changyeol Han

IPC: C09K11/88 ,  C09K11/08 ,  C09K11/02 ,  H10K50/115

CPC classification number: C09K11/883 ,  C09K11/0883 ,  C09K11/025 ,  H10K50/115 ,  B82Y20/00

Abstract: A quantum dot composition, including a first quantum dot and a second quantum dot, wherein a valence band maximum energy level of the first quantum dot is different from a valence band maximum energy level of the second quantum dot, as determined by ambient photoelectron spectroscopy, and an energy band gap of the first quantum dot is identical to an energy band gap of the second quantum dot, as determined by ultraviolet-visible spectroscopy.

公开(公告)号：US20240002724A1

公开(公告)日：2024-01-04

申请号：US18320086

申请日：2023-05-18

Applicant: Samsung Display Co., Ltd. ,  Hannam University Institute for Industry- Academia Cooperation

Inventor： Yunhyuk Ko ,  Changhee Lee ,  Taedong Kim ,  Prem Prabhakaran ,  Kanghyeok Lee

IPC: C09K11/88 ,  H01L33/06 ,  H01L33/26 ,  C09K11/06

CPC classification number: C09K11/883 ,  H01L33/06 ,  H01L33/26 ,  C09K11/06 ,  B82Y20/00

Abstract: A quantum dot ligand, a quantum dot complex including the same, a quantum dot composition including the quantum dot complex, and a light-emitting device including the quantum dot complex are provided. The quantum dot ligand is a polymer including: a first unit having a functional group having a charge transport function; and a second unit having at least one crosslinkable functional group and at least one functional group capable of binding to a quantum dot.

公开(公告)号：US11777058B2

公开(公告)日：2023-10-03

申请号：US16943829

申请日：2020-07-30

Applicant: Samsung Display Co., Ltd.

Inventor： Yunku Jung ,  Changhee Lee ,  Yunhyuk Ko ,  Dukki Kim ,  Jongwon Park ,  Jaekook Ha

IPC: H01L33/26 ,  H01L25/075 ,  G09F9/33

CPC classification number: H01L33/26 ,  H01L25/0753 ,  G09F9/33

Abstract: A light-emitting device (LED) includes a first semiconductor layer, a second semiconductor layer facing the first semiconductor layer, an insulating layer arranged to at least partially surround outer surfaces of the first semiconductor layer and the second semiconductor layer, and a first ligand bonded to a surface of the insulating layer and a second ligand bonded to the first ligand.

公开(公告)号：US20230011105A1

公开(公告)日：2023-01-12

申请号：US17807693

申请日：2022-06-17

Applicant: Samsung Display Co., Ltd. ,  Hannam University Institute for Industry- Academia Cooperation

Inventor： Yunhyuk Ko ,  Changhee Lee ,  Prem PRABHAKARAN ,  Dongryeol Whang ,  Gyeongju Kim ,  Kwangsup Lee

IPC: C09K11/02 ,  C09K11/88

Abstract: A quantum dot, a method of manufacturing the quantum dot, a composition including the quantum dot, an optical member including the quantum dot, and an electronic apparatus including the quantum dot are disclosed. The quantum dot includes: a nanomaterial; and a first ligand arranged on a surface of the nanomaterial, wherein the nanomaterial includes a core and a shell that covers at least a part of the core, wherein the first ligand includes a condensed polycyclic group in which two or more rings are condensed.

公开(公告)号：US11955468B2

公开(公告)日：2024-04-09

申请号：US16932591

申请日：2020-07-17

Applicant: Samsung Display Co., Ltd.

Inventor： Yunku Jung ,  Sungwoon Kim ,  Changhee Lee ,  Jaekook Ha ,  Yunhyuk Ko ,  Jaehoon Kim ,  Minki Nam ,  Hyunmi Doh ,  Myoungjin Park ,  Jae Hong Park ,  Junwoo Park

IPC: H01L25/16 ,  H01L23/00 ,  H01L33/44

CPC classification number: H01L25/167 ,  H01L24/32 ,  H01L24/83 ,  H01L33/44 ,  H01L2224/32137 ,  H01L2224/80143 ,  H01L2224/83085 ,  H01L2224/83896 ,  H01L2924/12041

Abstract: Provided is a light emitting element according to embodiments which includes a body including a semiconductor layer and an active layer, and a ligand including a head portion bonded to a surface of the body, an end portion spaced apart from the body, and having a positive or a negative charge, and a chain portion connecting the head portion and the end portion.