公开(公告)号：US20230276689A1

公开(公告)日：2023-08-31

申请号：US18057124

申请日：2022-11-18

Applicant: Samsung Display Co., Ltd.

Inventor： MINJUNG JUNG ,  TAEIL KIM ,  SERAN KIM ,  JUNHA PARK ,  JANG YEOL BAEK ,  MinJae SUNG

IPC: H01L51/00 ,  C07F5/02 ,  C09K11/06

CPC classification number: H01L51/008 ,  H01L51/0094 ,  H01L51/0087 ,  C07F5/027 ,  C09K11/06 ,  H01L51/5028

Abstract: Provided is a light emitting device including a first electrode, a second electrode facing the first electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a first compound represented by Formula 1 below:

公开(公告)号：US20230141820A1

公开(公告)日：2023-05-11

申请号：US17862923

申请日：2022-07-12

Applicant: Samsung Display Co., Ltd.

Inventor： MI EUN JUN ,  SERAN KIM ,  CHANSEOK OH

IPC: H01L51/00 ,  C07F5/02 ,  C09K11/06

CPC classification number: H01L51/008 ,  H01L51/0075 ,  H01L51/0067 ,  H01L51/0087 ,  H01L51/006 ,  C07F5/027 ,  C09K11/06 ,  C09K2211/1014 ,  H01L51/5028

Abstract: A light emitting element according to an embodiment includes a first electrode, a second electrode disposed on the first electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer includes a first compound, and at least one of a second compound, a third compound, and a fourth compound. The first compound is represented by Formula 1, the second compound is represented by Formula HT-1, the third compound is represented by Formula ET-1, and the fourth compound is represented by Formula M-b. Accordingly, the light emitting element has decreased driving voltage and improved efficiency.