公开(公告)号：US20210009893A1

公开(公告)日：2021-01-14

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

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：US20200259093A1

公开(公告)日：2020-08-13

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: H01L51/00 ,  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：US20190326516A1

公开(公告)日：2019-10-24

申请号：US16391607

申请日：2019-04-23

Applicant: Samsung Display Co., Ltd.

Inventor： Sehun KIM ,  Dukki KIM ,  Jaekook HA ,  Jaeyun KIM

IPC: H01L51/00

Abstract: Provided are an organic light-emitting device and a method of manufacturing the same. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer. The organic layer includes a hole transport region between the first electrode and the emission layer. The hole transport region also includes a first compound and a second compound, or includes the first compound and a third compound.

公开(公告)号：US20160190474A1

公开(公告)日：2016-06-30

申请号：US14740764

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 ,  H01L51/0067 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/5012 ,  H01L2251/5384

Abstract: An organic light-emitting device including a first electrode; a second electrode opposite to 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 the following Formula 2:

Abstract translation: 一种有机发光装置，包括：第一电极; 与所述第一电极相对的第二电极; 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，第二化合物由下式2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.