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.

公开(公告)号：US12167687B2

公开(公告)日：2024-12-10

申请号：US16391985

申请日：2019-04-23

Applicant: Samsung Display Co., Ltd.

Inventor： Sehun Kim ,  Dukki Kim ,  Seunguk Noh ,  Dongwoo Shin ,  Jaekook Ha ,  Eungdo Kim ,  Eunju Nam ,  Hyunwoo Lee ,  Jaesung Lim

IPC: H01L51/54 ,  H10K71/40 ,  H10K85/10 ,  H10K85/60 ,  H10K50/15

Abstract: An organic light-emitting device includes a first hole transport region including a polymer compound that includes a repeating unit derived from a compound including a moiety represented by Formula 1A and a second hole transport region including a first compound and a second compound, the first compound including a repeating unit represented by Formula 1, the second compound being a compound represented by Formula 1, and the third compound being a compound represented by Formula 3.

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：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：US11895916B2

公开(公告)日：2024-02-06

申请号：US17815930

申请日：2022-07-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jaekook Ha

IPC: H01L51/50 ,  H10K85/60 ,  H10K71/12 ,  H10K85/10 ,  H10K30/80 ,  H10K50/15 ,  H10K50/16 ,  H10K50/18 ,  H10K102/00

CPC classification number: H10K85/6572 ,  H10K71/12 ,  H10K85/111 ,  H10K85/115 ,  H10K30/865 ,  H10K50/15 ,  H10K50/16 ,  H10K50/18 ,  H10K2102/351

Abstract: A light-emitting device includes: an anode; a cathode facing the anode; an emission layer between the anode and the cathode; and an electron control layer between the emission layer and the cathode, wherein the electron control layer includes an electron control compound represented by Formula 5:




A method of manufacturing the light-emitting device includes: forming an emission layer on an anode; and forming an electron control layer on the emission layer, wherein the electron control layer includes an electron control compound represented by Formula 5.

公开(公告)号：US20230172004A1

公开(公告)日：2023-06-01

申请号：US17984815

申请日：2022-11-10

Applicant: Samsung Display Co., Ltd.

Inventor： Eunho Song ,  Sehun Kim ,  Jaekook Ha

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

CPC classification number: H01L27/3246 ,  H01L51/502 ,  H01L51/56 ,  H01L2227/323

Abstract: A display apparatus includes: a substrate having a display area and a peripheral area surrounding at least a portion of the display area; a first display element in the display area and including a first emission layer including a plurality of first quantum dots, the first emission layer to emit light of a first color; and a pixel definition layer on the substrate and including a first opening defining a first emission area of the first display element, a first trench spaced from the first opening in a first direction and extending in a second direction intersecting the first direction, and a first groove connecting the first opening to the first trench.

公开(公告)号：US11453628B2

公开(公告)日：2022-09-27

申请号：US16518917

申请日：2019-07-22

Applicant: Samsung Display Co., Ltd.

Inventor： Sehun Kim ,  Eungdo Kim ,  Eunju Nam ,  Seunguk Noh ,  Jongwon Park ,  Hyunwoo Lee ,  Jaekook Ha

IPC: C07C13/58 ,  H01L51/00 ,  C07D209/94 ,  C07D307/91 ,  C07D333/76 ,  C07C43/263 ,  C07D403/04 ,  C07D471/04 ,  C07D491/048 ,  C07D495/04 ,  C07D403/14 ,  H01L51/50 ,  C07C13/66

Abstract: Provided are a condensed cyclic compound, a composition including the same, and an organic light-emitting device including a thin film formed from the composition. The condensed cyclic compound is represented by following Formula, has a molecular weight of about 400 to about 10,000, and comprises at least one cross-linkable group:

公开(公告)号：US20220162467A1

公开(公告)日：2022-05-26

申请号：US17393435

申请日：2021-08-04

Applicant: Samsung Display Co., Ltd.

Inventor： Juyon Lee ,  Sehun Kim ,  Hyojin Ko ,  Heunggyu Kim ,  Wonjun Park ,  Junbo Sim ,  Seungmook Lee ,  Jaekook Ha

IPC: C09D11/38 ,  H01L51/00 ,  G03F7/42 ,  C09D11/50

Abstract: A method of forming a hole injection layer, a hole injection layer ink composition, and a light-emitting device manufactured by using the hole injection layer ink composition.