公开(公告)号：US20210371736A1

公开(公告)日：2021-12-02

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 ,  C07C309/04 ,  H01L51/00 ,  C07C309/30 ,  C07C53/00 ,  C07C63/08 ,  C07F9/54 ,  C07C43/10 ,  C07C211/09

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：US20200212303A1

公开(公告)日：2020-07-02

申请号：US16533612

申请日：2019-08-06

Applicant: Samsung Display Co., Ltd.

Inventor： Dongwoo SHIN ,  Dukki KIM ,  Jaeyun KIM ,  Junwoo PARK ,  Sehun KIM ,  Jaekook HA

IPC: H01L51/00 ,  C09D11/52 ,  C09D11/102 ,  C09D11/30 ,  C08G61/12

Abstract: A composition for forming an organic layer in an organic light-emitting device includes a high-molecular-weight compound represented by Formula 1, having a molecular weight of about 50,000 or more; a non-arylamine-based low-molecular-weight compound represented by Formula 2, having a molecular weight of about 10,000 or less; and a solvent: wherein in Formula 2, Y is a substituted or unsubstituted C3-C60 carbocyclic group that does not include a moiety represented by When the composition is deposited and dried to form the organic layer, the organic layer is solvent resistant.

公开(公告)号：US20190326519A1

公开(公告)日：2019-10-24

申请号：US16375806

申请日：2019-04-04

Applicant: Samsung Display Co., Ltd.

Inventor： Dongwoo SHIN ,  Dukki KIM ,  Sehun KIM ,  Jaeyun KIM ,  Jongwon PARK ,  Seungmook LEE ,  Jaekook HA

IPC: H01L51/00 ,  C07D209/86 ,  C07D307/91

Abstract: Provided are an organic light-emitting device including an arylamine-based compound including a thermally decomposable group, and an arylamine-based compound including a thermally decomposable group. The organic light-emitting device includes: a first electrode; a second electrode facing a first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, the organic layer including an arylamine-based compound in which the thermally decomposable group has been thermally decomposed and removed from the arylamine-based compound including the thermally decomposable group.

公开(公告)号：US20160190473A1

公开(公告)日：2016-06-30

申请号：US14740393

申请日：2015-06-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sehun KIM ,  Mikyung KIM ,  Kwanhee LEE ,  Hyein JEONG ,  Changwoong CHU

IPC: H01L51/00 ,  C09K11/02

CPC classification number: H01L51/0072 ,  C09K11/025 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0067 ,  H01L51/0071 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/5012 ,  H01L51/5016 ,  H01L2251/5384

Abstract: An organic light-emitting device including a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the organic layer includes a first compound and a second compound, the first compound being represented by one of the following Formulae 1-1 to 1-3, and the second compound being represented by one of the following Formulae 2-1 and 2-2:

Abstract translation: 一种有机发光装置，包括：第一电极; 面对所述第一电极的第二电极; 以及在所述第一电极和所述第二电极之间的有机层，所述有机层包括发光层，其中所述有机层包括第一化合物和第二化合物，所述第一化合物由下式1-1至1之一表示 -3，第二化合物由以下式2-1和2-2之一表示：

公开(公告)号：US20240414932A1

公开(公告)日：2024-12-12

申请号：US18807908

申请日：2024-08-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Heunggyu KIM ,  Sehun KIM ,  Taeheon KANG ,  Hyeran MUN ,  Juyon LEE ,  Jaekook HA

IPC: H10K50/11 ,  H10K50/16 ,  H10K71/00 ,  H10K71/12 ,  H10K85/60 ,  H10K101/30 ,  H10K101/40

Abstract: A composition for manufacturing a light-emitting device includes: a solvent; and a first compound and a second compound, each dispersed in the solvent; wherein a molecular weight of the first compound is 750 g/mol or less, a molecular weight of the second compound is greater than 750 g/mol, a lowest unoccupied molecular orbital (LUMO) energy level of the second compound is greater than −2.4 eV, a highest occupied molecular orbital (HOMO) energy level of the second compound is less than −5.6 eV, and a bandgap energy of the second compound is greater than 3.2 eV.

公开(公告)号：US20240324272A1

公开(公告)日：2024-09-26

申请号：US18437551

申请日：2024-02-09

Applicant: Samsung Display Co., LTD.

Inventor： Yun Ku JUNG ,  Yunhyuk KO ,  Sehun KIM ,  Jonghoon KIM ,  Seung Uk NOH ,  Won-Jun PARK ,  Chul Soon PARK ,  Jongwoo SHIN ,  Sooho LEE ,  Jae Kook HA

IPC: H10K50/16 ,  H10K102/00

CPC classification number: H10K50/166 ,  H10K2102/351

Abstract: A light emitting device includes: a first electrode that is a reflective electrode; a first electron transport layer disposed on the first electrode; a second electron transport layer disposed on the first electron transport layer; an emission layer disposed on the second electron transport layer, and a second electrode positioned on the emission layer and that is a transflective electrode, wherein the first electron transport layer and the second electron transport layer include different metal oxides, and a thickness of the first electron transport layer is greater than a thickness of the second electron transport layer.

公开(公告)号：US20230413598A1

公开(公告)日：2023-12-21

申请号：US18322945

申请日：2023-05-24

Applicant: Samsung Display Co., Ltd.

Inventor： Sehun KIM ,  Changhee LEE ,  Yeo Geon Yoon

IPC: H10K50/828 ,  H10K50/15 ,  H10K50/17 ,  H10K50/16 ,  C09K11/06

CPC classification number: H10K50/828 ,  H10K50/15 ,  H10K50/171 ,  H10K50/16 ,  C09K11/06 ,  H10K2102/102

Abstract: A light-emitting device in which a hole injection layer is disposed between an emission layer and a second electrode, and the hole injection layer includes graphene and contacts the second electrode, and a first electrode is a cathode.

公开(公告)号：US20230265306A1

公开(公告)日：2023-08-24

申请号：US18172286

申请日：2023-02-21

Applicant: Samsung Display Co., Ltd.

Inventor： Sangyeop LEE ,  Jongwoo SHIN ,  Dukki KIM ,  Sehun KIM ,  Wonjun PARK ,  Jaekook HA

IPC: C09D11/50 ,  H10K50/16 ,  H10K50/115 ,  C09D11/033 ,  C09K11/55 ,  B82Y30/00

CPC classification number: C09D11/50 ,  H10K50/16 ,  H10K50/115 ,  C09D11/033 ,  C09K11/55 ,  B82Y30/00

Abstract: An ink composition for a light-emitting device, the ink composition including: a metal oxide; and a mixed solvent composition including a first solvent, a second solvent, and a third solvent,



wherein the first solvent includes one hydroxyl group and has a boiling point of 160° C. to 270° C., the second solvent includes one hydroxyl group and has a boiling point of 270° C. to 350° C., and the third solvent includes two or more hydroxyl groups and has a boiling point of 270° C. to 350° C.

公开(公告)号：US20220216444A1

公开(公告)日：2022-07-07

申请号：US17445666

申请日：2021-08-23

Applicant: Samsung Display Co., Ltd.

Inventor： Heunggyu KIM ,  Sehun KIM ,  Taeheon KANG ,  Hyeran MUN ,  Juyon LEE ,  Jaekook HA

IPC: H01L51/50 ,  H01L51/00

Abstract: A composition for manufacturing a light-emitting device includes: a solvent; and a first compound and a second compound, each dispersed in the solvent; wherein a molecular weight of the first compound is 750 g/mol or less, a molecular weight of the second compound is greater than 750 g/mol, a lowest unoccupied molecular orbital (LUMO) energy level of the second compound is greater than −2.4 eV, a highest occupied molecular orbital (HOMO) energy level of the second compound is less than −5.6 eV, and a bandgap energy of the second compound is greater than 3.2 eV.

公开(公告)号：US20210371738A1

公开(公告)日：2021-12-02

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 ,  G03F7/004 ,  H01L51/50

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.