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：US20250075124A1

公开(公告)日：2025-03-06

申请号：US18796960

申请日：2024-08-07

Applicant: Samsung Display Co., Ltd.

Inventor： Jungho JO ,  SANGYEOP LEE ,  SOOHO LEE ,  YUNKU JUNG ,  Chang Yeol HAN

IPC: C09K11/66 ,  B82Y30/00 ,  C09D11/38 ,  C09K11/02 ,  H10K50/115 ,  H10K50/16 ,  H10K50/17 ,  H10K102/00

Abstract: A light-emitting element includes a first electrode, a functional layer disposed on the first electrode, and a second electrode disposed on the functional layer, wherein the functional layer includes a nanoparticle, the nanoparticle includes a core and a ligand, the core includes at least one of a first core compound represented by Formula 1 below, a second core compound represented by Formula 2 below, or a third core compound represented by Formula 3 below, and thus the light-emitting element has improved lifespan and efficiency. Sn4+1-xSn2+xO2-x  Formula 1 Sn4+1-yCu+2yO2-y  Formula 2 Sn4+1-zNi2+zO2-z  Formula 3