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：US20230284521A1

公开(公告)日：2023-09-07

申请号：US18178842

申请日：2023-03-06

Applicant: Samsung Display Co., Ltd.

Inventor： Juyon Lee ,  Jingoo Kang ,  Sehun Kim ,  Yonghwi Kim ,  Jonghoon Kim ,  Myoungjin Park ,  Junwoo Park ,  Sanghee Yu ,  Jaekook Ha

IPC: H10K85/60

CPC classification number: H10K85/611 ,  H10K50/16

Abstract: A light-emitting device including: a substrate; a cathode on the substrate; an anode facing the cathode; and an interlayer including an emission layer, wherein the interlayer is located between the cathode and the anode; and a thermal acid generator.

公开(公告)号：US20230180497A1

公开(公告)日：2023-06-08

申请号：US18061139

申请日：2022-12-02

Applicant: Samsung Display Co., Ltd.

Inventor： Eunho Song ,  Dukki Kim ,  Sehun Kim ,  Wonjun Park ,  Jongwoo Shin ,  Sangyeop Lee ,  Jaekook Ha

IPC: H01L31/00 ,  C09K11/08 ,  C09K11/70 ,  B82Y20/00

CPC classification number: H01L51/502 ,  C09K11/0883 ,  C09K11/70 ,  B82Y20/00

Abstract: Provided are a light-emitting device and an electronic apparatus, the light-emitting device including a functional layer that is between an emission layer and a second electrode and includes a first metal oxide and a second metal particle, and a second metal of the second metal particle is Mg, Au, Ag, Cu, Fe, or any combination thereof.

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：US11349078B2

公开(公告)日：2022-05-31

申请号：US16779428

申请日：2020-01-31

Applicant: Samsung Display Co., Ltd.

Inventor： Dukki Kim ,  Jaekook Ha ,  Sehun Kim ,  Dongwoo Shin ,  Donghoon Kwak ,  Junwoo Park

IPC: H01L51/50 ,  H01L51/00 ,  C09D11/52 ,  C09D11/36 ,  C09D11/102

Abstract: Provided are a composition for forming an organic light-emitting device, a method of preparing an organic light-emitting device, and an organic light-emitting device. The method of preparing an organic light-emitting device includes: forming an organic layer including an emission layer on a first electrode, wherein the forming of the organic layer includes performing a solution process using a composition for forming an organic light-emitting device, the composition for forming an organic light-emitting device includes n kinds of solvent, a solvent (Sv1) having the highest boiling point among the n kinds of solvent and a solvent (Sv2) having the second highest boiling point among the n kinds of solvent satisfy Equation 1, n is an integer from 2 to 10, and the solvent (Sv1) having the highest boiling point among the n kinds of solvent is a compound represented by Formula 1.

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.