公开(公告)号：US12163036B2

公开(公告)日：2024-12-10

申请号：US17025399

申请日：2020-09-18

Applicant: Samsung Display Co., Ltd.

Inventor： Junbo Sim ,  Hyojin Ko ,  Dukki Kim ,  Jonghyuk Kang ,  Changhee Lee ,  Jaehoon Jung ,  Jaekook Ha

IPC: C09D11/36 ,  C08G69/48 ,  C08L75/16 ,  C09D11/326 ,  H01L31/18

Abstract: Provided are an ink composition, a light-emitting apparatus using the ink composition, and a method of manufacturing the light-emitting apparatus. The ink composition may include a light-emitting device, a solvent, and an organic thickener, and the organic thickener is a polymeric compound including at least one group represented by Formula 1: wherein in Formula 1, X, R1, n1, and R2 may respectively be understood by referring to the descriptions of X, R1, n1, and R2 provided in the detailed description.

公开(公告)号：US20240206219A1

公开(公告)日：2024-06-20

申请号：US18465289

申请日：2023-09-12

Applicant: Samsung Display Co., Ltd.

Inventor： Jonghoon Kim ,  Changhee Lee ,  Jingoo Kang ,  Sehun Kim ,  Yonghwi Kim ,  Myoungjin Park ,  Jongwoo Shin ,  Juyon Lee ,  Jaekook Ha

IPC: H10K50/16 ,  C09K11/02 ,  C09K11/54 ,  C09K11/88 ,  H10K50/115 ,  H10K71/15

CPC classification number: H10K50/16 ,  C09K11/02 ,  C09K11/54 ,  C09K11/88 ,  H10K50/115 ,  H10K71/15

Abstract: An electron transport layer including a mixed composition including a solvent, a metal oxide, and a metal halogen compound.

公开(公告)号：US11959001B2

公开(公告)日：2024-04-16

申请号：US17212630

申请日：2021-03-25

Applicant: Samsung Display Co., Ltd.

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

IPC: C09K11/08 ,  C09K11/06 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K102/00

CPC classification number: C09K11/08 ,  C09K11/06 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K2102/00

Abstract: A quantum dot composition includes a quantum dot having a surface to which a ligand is bonded, and a thermal decomposition auxiliary compound. The quantum dot composition 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 and the display device.

公开(公告)号：US20230320123A1

公开(公告)日：2023-10-05

申请号：US18165227

申请日：2023-02-06

Applicant: Samsung Display Co., Ltd.

Inventor： Sehun Kim ,  Changhee Lee ,  Jiyoon Kim ,  Heunggyu Kim ,  Jaekook Ha

IPC: H10K50/17 ,  H10K50/16 ,  H10K50/15 ,  H10K50/115 ,  H10K30/82 ,  H10K85/60

CPC classification number: H10K50/171 ,  H10K30/82 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K85/611 ,  H10K85/615 ,  H10K85/631 ,  H10K85/657 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K2102/103

Abstract: A light-emitting device that includes a first electrode, a second electrode and an interlayer between the first electrode and the second electrode and including an emission layer is provided. An electron injection layer and an electron transport layer are between the emission layer and the first electrode. The electron injection layer includes: an oxide of: Zn; Ti; Mg; or any combination thereof, the electron transport layer includes a phosphine oxide compound, and the first electrode of the light-emitting device may be a reflective electrode.

公开(公告)号：US11667834B2

公开(公告)日：2023-06-06

申请号：US17198752

申请日：2021-03-11

Applicant: Samsung Display Co., Ltd.

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

IPC: H10K50/115 ,  H10K71/00 ,  C09K11/02 ,  H01L51/50 ,  H01L51/56 ,  B82Y40/00 ,  B82Y20/00

CPC classification number: C09K11/025 ,  H01L51/502 ,  H01L51/56 ,  B82Y20/00 ,  B82Y40/00

Abstract: A method for manufacturing a light emitting element includes: forming a first electrode; forming a hole transport region on a first electrode; forming an emission layer on the hole transport region; forming an electron transport region on the emission layer; and forming a second electrode on the electron transport region, wherein the forming of the emission layer includes providing a quantum dot composition containing a quantum dot and a ligand bonded to a surface of the quantum dot, to form a preliminary emission layer; and increasing the layer density of the preliminary emission layer by about 5% or greater, thereby improving a luminous efficiency of the light emitting element.

公开(公告)号：US11649401B2

公开(公告)日：2023-05-16

申请号：US16924658

申请日：2020-07-09

Applicant: Samsung Display Co., Ltd.

Inventor： Sehun Kim ,  Changhee Lee ,  Junbo Sim ,  Jaekook Ha

IPC: C09K11/02 ,  C09K11/70 ,  C09K11/08 ,  H01L33/50 ,  H01L51/50 ,  B82Y20/00 ,  B82Y40/00

CPC classification number: C09K11/02 ,  C09K11/0883 ,  C09K11/703 ,  B82Y20/00 ,  B82Y40/00

Abstract: A quantum dot-containing material includes: a quantum dot-containing complex including a quantum dot and a first matrix material; and a second matrix material, wherein the quantum dot is dispersed in the first matrix material, the quantum dot-containing complex is dispersed in the second matrix material, and a refractive index of the first matrix material is greater than that of the second matrix material.

公开(公告)号：US20230025948A1

公开(公告)日：2023-01-26

申请号：US17574467

申请日：2022-01-12

Applicant: Samsung Display Co., Ltd.

Inventor： Youngil Kim ,  Changhee Lee ,  Sehun Kim ,  Jingoo Kang ,  Seunguk Noh ,  Jaekook Ha

IPC: H01L51/50 ,  H01L51/00 ,  H01L27/32 ,  H01L51/56

Abstract: A 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 and including an emission layer, wherein the interlayer may include a layer including a metal oxide, and a surface of the layer including a metal oxide is an organic acid-treated surface.

公开(公告)号：US12207548B2

公开(公告)日：2025-01-21

申请号：US17030031

申请日：2020-09-23

Applicant: Samsung Display Co., Ltd.

Inventor： Hyunmi Doh ,  Changhee Lee ,  Myoungjin Park ,  Jaekook Ha

IPC: B82Y40/00 ,  C01G9/02 ,  C09K11/88 ,  H10K50/16 ,  H10K85/60

Abstract: A light-emitting device includes a first electrode, an emission layer, an electron transport layer, a metal-nucleation inducing layer, and a second electrode. The metal-nucleation inducing layer is in direct contact with the second electrode, and includes a metal-nucleation inducing material having at least one metal-nucleation inducing group. The second electrode includes a metal-containing film that is hybridized with the metal-nucleation inducing material. The metal-nucleation inducing group is a π electron-deficient nitrogen-containing C1-C60 cyclic group that is unsubstituted or substituted with at least one R1 or a group represented by one of Formulae 1A to 1E, and does not comprise a group represented by *—C(═O)(OH) and a cyano group. The emission efficiency and/or lifespan of the light-emitting device may be improved because of the metal-nucleation inducing layer.

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.

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.