公开(公告)号：US20240138253A1

公开(公告)日：2024-04-25

申请号：US18478491

申请日：2023-09-29

Applicant: Samsung Display Co., Ltd.

Inventor： Jungho Jo ,  Yunku Jung ,  Yunhyuk Ko ,  Chulsoon Park ,  Sooho Lee

IPC: H10K85/30 ,  C07F3/06 ,  H10K50/115 ,  H10K50/16 ,  H10K50/17 ,  H10K59/12

CPC classification number: H10K85/381 ,  C07F3/06 ,  H10K50/115 ,  H10K50/16 ,  H10K50/171 ,  H10K59/12

Abstract: A metal oxide nanoparticle includes a ligand linked to a surface of the metal oxide nanoparticle, where the ligand includes a first ligand and a second ligand, the first ligand includes a C1-C60 alkylamine compound and/or a C2-C60 alkenylamine compound, and the second ligand includes a C6-C60 alkylthiol compound and/or a phosphine compound.

公开(公告)号：US11910703B2

公开(公告)日：2024-02-20

申请号：US17152640

申请日：2021-01-19

Applicant: Samsung Display Co., Ltd.

Inventor： Changhee Lee ,  Yunku Jung ,  Hyojin Ko ,  Dukki Kim ,  Sehun Kim ,  Jaehoon Kim ,  Hyunmi Doh ,  Jaekook Ha

IPC: H01L51/00 ,  H10K85/30 ,  C09K11/06 ,  H10K50/115 ,  H10K71/00

CPC classification number: H10K85/361 ,  C09K11/06 ,  H10K85/381 ,  C09K2211/10 ,  C09K2211/188 ,  H10K50/115 ,  H10K71/00

Abstract: A quantum dot composition includes a quantum dot, and a ligand bonded to a surface of the quantum dot, wherein the ligand includes a head portion bonded to the surface of the quantum dot, a connecting portion connected to the head portion and including a metal, and a tail portion coordinated to the metal of the connecting portion. The quantum dot composition according to the present embodiments is used to form an emission layer of a light emitting element, and may thus increase service life and luminous efficiency of the light emitting element including the emission layer formed using the quantum dot composition.

公开(公告)号：US20230242816A1

公开(公告)日：2023-08-03

申请号：US18103384

申请日：2023-01-30

Applicant: Samsung Display Co., Ltd.

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

IPC: C09K11/88 ,  C09K11/08

CPC classification number: C09K11/883 ,  C09K11/0883 ,  B82Y20/00

Abstract: A quantum dot, a method of preparing the same, and an electronic apparatus including the same. The quantum dot includes: a core; and a shell around at least portion of the core. The core may include a first semiconductor compound including indium (In) and phosphorus (P), and in the first semiconductor compound, a ratio between the number of moles (mol) of In and the number of moles (mol) of P (MIn/MP) may be greater than 1.

公开(公告)号：US11456433B2

公开(公告)日：2022-09-27

申请号：US16812123

申请日：2020-03-06

Applicant: Samsung Display Co., Ltd.

Inventor： Kyoungwon Park ,  Minki Nam ,  Hyunmi Doh ,  Sungwoon Kim ,  Jae Hong Park ,  Yunku Jung

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00

Abstract: A light emitting device may include a first electrode, a second electrode opposite to the first electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer may include a manganese complex compound and a quantum dot. It is possible to improve life span and light emitting efficiency characteristics of the light emitting device.

公开(公告)号：US12122952B2

公开(公告)日：2024-10-22

申请号：US17448820

申请日：2021-09-24

Applicant: Samsung Display Co., Ltd.

Inventor： Myoungjin Park ,  Yunku Jung ,  Jonghoon Kim ,  Sungwoon Kim ,  Jaekook Ha

IPC: C09K11/02 ,  C09K11/08 ,  C09K11/54 ,  C09K11/56 ,  C09K11/88 ,  H10K71/13 ,  H10K71/15 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  H10K50/11 ,  H10K50/115 ,  H10K71/00 ,  H10K101/10 ,  H10K102/00

CPC classification number: C09K11/883 ,  C09K11/54 ,  H10K71/135 ,  H10K71/15 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  H10K50/11 ,  H10K50/115 ,  H10K71/00 ,  H10K2101/10 ,  H10K2102/00

Abstract: An inorganic nanoparticle composition includes an inorganic nanoparticle and a highly fluorinated solvent, and the inorganic nanoparticle includes an inorganic material and a F-containing charge-transporting organic ligand. A light-emitting device with the inorganic nanoparticle composition, for example, as a material for forming at least a portion of an electron transport region in the light-emitting device. An electronic apparatus includes the light-emitting device.

公开(公告)号：US20240099044A1

公开(公告)日：2024-03-21

申请号：US18299825

申请日：2023-04-13

Applicant: Samsung Display Co., Ltd.

Inventor： Dongsun Yoo ,  Gyubong Kim ,  Sanghee Yu ,  Sehun Kim ,  Jihye Kim ,  Hoilim Kim ,  Yohan Suh ,  Yunku Jung

IPC: H10K50/115 ,  C09D5/22 ,  C09K11/08 ,  C09K11/70

CPC classification number: H10K50/115 ,  C09D5/22 ,  C09K11/0811 ,  C09K11/70

Abstract: Embodiments provide a mixed solvent for a quantum dot ink composition, wherein the mixed solvent includes at least two solvents, an R1 value of the mixed solvent is greater than or equal to about 7.3 Mpa0.5, an R2 value of the mixed solvent is greater than or equal to about 5.0 Mpa0.5, and a molar volume of the mixed solvent is greater than or equal to about 160 cm3/mol.

公开(公告)号：US11882712B2

公开(公告)日：2024-01-23

申请号：US17171893

申请日：2021-02-09

Applicant: Samsung Display Co., Ltd. ,  Research & Business Foundation SUNGKYUNKWAN UNIVERSITY

Inventor： Minki Nam ,  Sungwoon Kim ,  Yunhyuk Ko ,  Wan Ki Bae ,  Sooho Lee ,  Byeong Guk Jeong ,  Yunku Jung

IPC: H10K50/115 ,  C09K11/88 ,  C09K11/08 ,  B82Y40/00 ,  B82Y20/00

CPC classification number: H10K50/115 ,  C09K11/0883 ,  C09K11/883 ,  B82Y20/00 ,  B82Y40/00

Abstract: A quantum dot includes a core and a plurality of shell layers surrounding the core. The core has a band gap less than that of the outermost shell layer, and the outermost shell layer has a band gap less than that of a second shell layer. Thus, a light emitting device including the quantum dot according to an embodiment may have an improved lifespan of the device and excellent luminous efficiency characteristics.

公开(公告)号：US11866627B2

公开(公告)日：2024-01-09

申请号：US17192388

申请日：2021-03-04

Applicant: Samsung Display Co., Ltd.

Inventor： Changhee Lee ,  Dukki Kim ,  Hyojin Ko ,  Sehun Kim ,  Jaehoon Kim ,  Hyunmi Doh ,  Yunku Jung ,  Jaekook Ha

IPC: C09K11/06 ,  C07C309/30 ,  C07C53/00 ,  C07C63/08 ,  C07F9/54 ,  C07C43/10 ,  C07C211/09 ,  C07C309/04 ,  H10K85/60 ,  H10K50/115 ,  H10K71/00 ,  H10K71/15

CPC classification number: C09K11/06 ,  C07C43/10 ,  C07C53/00 ,  C07C63/08 ,  C07C211/09 ,  C07C309/04 ,  C07C309/30 ,  C07F9/5407 ,  C07F9/5442 ,  H10K85/60 ,  C09K2211/10 ,  C09K2211/1007 ,  H10K50/115 ,  H10K71/00 ,  H10K71/15

Abstract: A quantum dot composition includes a quantum dot, and a ligand bonded to a surface of the quantum dot, wherein the ligand includes a head portion bonded to the surface of the quantum dot and containing a polar solvent dissociative functional group, and a tail portion connected to the head portion. A quantum dot composition according to an embodiment is used to form an emission layer of a light emitting element to enhance luminous efficiency of the light emitting element including an emission layer formed through the quantum dot composition.

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：US20230354631A1

公开(公告)日：2023-11-02

申请号：US18301823

申请日：2023-04-17

Applicant: Samsung Display Co., Ltd. ,  Seoul National University R&DB Foundation

Inventor： Yunku Jung ,  Kookheon Char ,  Sungwoon Kim ,  Hakjune Lee

IPC: H10K50/115 ,  H10K50/165 ,  H01L33/50 ,  H01L27/15

CPC classification number: H10K50/115 ,  H10K50/165 ,  H01L33/50 ,  H01L27/15

Abstract: Provided are a quantum dot composition, a light-emitting device including the quantum dot composition, and an electronic apparatus including the light-emitting device, wherein the quantum dot composition includes: a quantum dot comprising a semiconductor compound including a ternary compound and/or a quaternary compound; and a scavenger represented by Formula 1.