公开(公告)号：US20240324271A1

公开(公告)日：2024-09-26

申请号：US18437361

申请日：2024-02-09

Applicant: Samsung Display Co., LTD.

Inventor： Yun Ku JUNG ,  YUNHYUK KO ,  WON-JUN PARK ,  CHUL SOON PARK ,  JONGWOO SHIN ,  Jungho JO

IPC: H10K50/16 ,  C09D11/52 ,  H10K50/11 ,  H10K71/15

CPC classification number: H10K50/166 ,  C09D11/52 ,  H10K50/11 ,  H10K71/15

Abstract: An ink composition includes a first solvent, a second solvent, a first electron transport material and a second electron transport material. The first electron transport material includes a metal oxide, and a ligand disposed on a surface of the metal oxide. The second electron transport material includes a metal oxide, and a ligand positioned on a surface of the metal oxide. The ligand of the first electron transport material and the ligand of the second electron transport material are different from each other. A difference in a length of the ligand of the first electron transport material and a length of the ligand of the second electron transport material is three or more atoms.

公开(公告)号：US20250011645A1

公开(公告)日：2025-01-09

申请号：US18662018

申请日：2024-05-13

Applicant: Samsung Display Co., LTD. ,  Hannam University Institute for Industry-Academia Cooperation

Inventor： WON-JUN PARK ,  Dong Ryeol WHANG ,  SEHUN KIM ,  Daeho HWANG

IPC: C09K11/02 ,  B82Y15/00 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  C09K11/88 ,  H05B33/14 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16

Abstract: A quantum dot complex includes a quantum dot, a first ligand bonded to a surface of the quantum dot and including a thiol group at an end of the first ligand, and a second ligand different from the first ligand, bonded to a surface of the quantum dot, and including a thiol group at an end of the second ligand and a carboxyl group at an opposite end of the second ligand.

公开(公告)号：US20240276868A1

公开(公告)日：2024-08-15

申请号：US18532579

申请日：2023-12-07

Applicant: Samsung Display Co., LTD.

Inventor： Jungho JO ,  CHUL SOON PARK ,  YUNKU JUNG ,  WON-JUN PARK ,  JONGWOO SHIN

IPC: H10K85/30 ,  H10K50/115 ,  H10K71/13

CPC classification number: H10K85/381 ,  H10K50/115 ,  H10K71/135 ,  H10K50/15 ,  H10K50/16

Abstract: A light emitting element includes a first electrode, an electron transport region, an emission layer, a hole transport region, and a second electrode, stacked in order. At least one among the electron transport region and the hole transport region includes a metal nanoparticle. The metal nanoparticle includes a core including a metal oxide and a ligand bonded to the core and including at least one among Se and Te. The ligand is derived from a first compound represented by Formula 1 or an ion represented by Formula 2 as described. Accordingly, the light emitting element may be manufactured by an inkjet printing method.

公开(公告)号：US20250133950A1

公开(公告)日：2025-04-24

申请号：US18782389

申请日：2024-07-24

Applicant: Samsung Display Co., Ltd.

Inventor： YUNKU JUNG ,  SANGYEOP LEE ,  WON-JUN PARK ,  CHUL SOON PARK ,  JONGWOO SHIN ,  Jungho JO

IPC: H10K85/30 ,  C09K11/06 ,  H10K50/15 ,  H10K50/16 ,  H10K71/10

Abstract: Embodiments provide a light emitting element that includes a first electrode, a second electrode disposed on the first electrode, an emission layer disposed between the first electrode and the second electrode and including quantum dots, a hole transport region disposed between the first electrode and the second electrode, and an electron transport region disposed between the first electrode and the second electrode, wherein the emission layer is disposed between the hole transport region and the electron transport region. At least one of the hole transport region and the electron transport region includes metal nanoparticles. The metal nanoparticles include a core containing a metal oxide, and a ligand bonded to the core, wherein the ligand includes an alkoxy group. The alkoxy group is derived from an oxygen-containing compound represented by Formula 1, which is explained in the specification.

公开(公告)号：US20250051177A1

公开(公告)日：2025-02-13

申请号：US18652634

申请日：2024-05-01

Applicant: Samsung Display Co., Ltd.

Inventor： Jungho JO ,  SEHUN KIM ,  WON-JUN PARK ,  CHUL SOON PARK ,  JONGWOO SHIN ,  Chungman YU

IPC: C01G19/02 ,  H10K50/115 ,  H10K50/16 ,  H10K85/40

Abstract: An electronic transport composition including inorganic particles (each) represented by Formula 1, and a solvent represented by Formula 2, and when the electron transport composition is applied to a light-emitting element, luminous efficiency characteristics and element lifespan characteristics may be improved. Zn1-xMxO  Formula 1 R1—O—(R2—O)n—R3  Formula 2

公开(公告)号：US20240215437A1

公开(公告)日：2024-06-27

申请号：US18501365

申请日：2023-11-03

Applicant: Samsung Display Co., LTD.

Inventor： CHUL SOON PARK ,  WON-JUN PARK ,  JONGWOO SHIN ,  Yun Ku JUNG

IPC: H10K85/30 ,  C07F3/06

CPC classification number: H10K85/381 ,  C07F3/06 ,  H10K50/16

Abstract: According to an embodiment, the inorganic metal oxide includes a crystalline core and a ligand positioned on a surface of the crystalline core, the crystalline core includes crystalline ZnO, and the ligand is a compound represented by Formula 1 below. In Chemical Formula 1, n may indicate 1 or 3, and X may indicate one selected from SH, an amine, methoxysilane, a carboxylic acid, and a carbonyl acid.