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：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.

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.