公开(公告)号：US12258504B2

公开(公告)日：2025-03-25

申请号：US18407326

申请日：2024-01-08

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

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：US12129416B2

公开(公告)日：2024-10-29

申请号：US17219653

申请日：2021-03-31

Applicant: Samsung Display Co., Ltd.

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

IPC: C09K11/06 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  H10K50/115 ,  H10K102/00

CPC classification number: C09K11/06 ,  H10K50/115 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  C09K2211/10 ,  H10K2102/00

Abstract: A quantum dot composition includes a quantum dot having a surface to which a ligand is bonded, and a photoacid generator. The quantum dot composition according to one or more embodiments may be applied to an emission layer of a light emitting element and a display device, thereby improving luminous efficiency of the light emitting element.

公开(公告)号：US11917845B2

公开(公告)日：2024-02-27

申请号：US17336011

申请日：2021-06-01

Applicant: Samsung Display Co., Ltd.

Inventor： Sooho Lee ,  Changhee Lee ,  Hyunmi Doh

IPC: H10K50/16 ,  C09K11/02 ,  C09K11/54 ,  C09K11/56 ,  C09K11/55 ,  C09K11/06 ,  H10K50/115 ,  H10K50/828 ,  H10K71/00 ,  H10K71/15 ,  H10K71/13 ,  H10K102/00

CPC classification number: H10K50/16 ,  C09K11/02 ,  C09K11/06 ,  C09K11/54 ,  C09K11/55 ,  C09K11/565 ,  H10K50/115 ,  H10K50/828 ,  H10K71/00 ,  H10K71/135 ,  H10K71/15 ,  H10K2102/331

Abstract: Provided are a light-emitting device, an electronic apparatus including the same, and a method of manufacturing the light-emitting device, wherein 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 includes an emission layer and an electron transport layer, the electron transport layer is between the emission layer and the second electrode, and the electron transport layer includes an electron transport particle, the electron transport particle includes a core and a shell covering the core, the core includes an oxide, a chalcogenide, or any combination thereof, and the shell includes a chalcogenide, the chalcogenide of the core being the same as or different from the chalcogenide of the shell.

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：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：US20220209114A1

公开(公告)日：2022-06-30

申请号：US17564081

申请日：2021-12-28

Applicant: Samsung Display Co., Ltd.

Inventor： Youngil Kim ,  Hyunmi Doh ,  Jongwoo Shin ,  Seongsu Lim ,  Sungwoon Kim

IPC: H01L51/00 ,  C09K11/54 ,  C01G9/02 ,  C09D11/36

Abstract: A nanoparticle ink composition includes: a solvent; and one or more inorganic nanoparticles substantially dispersed in the solvent, wherein the inorganic nanoparticles include one or more quantum dots or a metal oxide having a diameter of about 20 nm or less, and the nanoparticle ink composition has an Ohnesorge number of about 0.1 to about 0.2.