公开(公告)号：US20210305531A1

公开(公告)日：2021-09-30

申请号：US17213782

申请日：2021-03-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Mikyung KIM ,  Jaehyun Lee ,  Jiwon Kwak ,  Hyerim Kim ,  Jihyun Seo ,  Kwanhee Lee ,  Hanbyul Jang

IPC: H01L51/50 ,  H01L51/00

Abstract: A light-emitting device includes: a first electrode; a second electrode opposing the first electrode; and an interlayer between the first electrode and the second electrode, wherein the interlayer includes an emission layer, a first emission auxiliary layer, a second emission auxiliary layer, and a hole transport region, the hole transport region is disposed between the first electrode and the emission layer, the first emission auxiliary layer and the second emission auxiliary layer are disposed between the emission layer and the hole transport region, the first emission auxiliary layer includes a first compound, the second emission auxiliary layer includes a second compound, the hole transport region includes a hole transport compound, and the first compound and the hole transport compound satisfy the Equation 1, as defined herein.

公开(公告)号：US11158831B2

公开(公告)日：2021-10-26

申请号：US16560272

申请日：2019-09-04

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehyun Lee ,  Mikyung Kim ,  Seunggak Yang ,  Jiwon Kwak ,  Namwoo Kim ,  Byounghee Park ,  Hanbyul Jang

IPC: H01L51/52 ,  H01L51/50

Abstract: An organic light-emitting device is provided. The organic light-emitting device includes: an anode; a cathode; and an organic layer between the anode and the cathode and including an emission layer, wherein the emission layer includes a first emission layer including a first host, a second host, and a first dopant, and a second emission layer including a third host, a fourth host, and a second dopant, and the organic light-emitting device satisfies Equations 1 and 2.

公开(公告)号：US20250017108A1

公开(公告)日：2025-01-09

申请号：US18735109

申请日：2024-06-05

Applicant: Samsung Display Co., Ltd.

Inventor： Hyejeong Park ,  Beomjin Kim ,  Ha Hwang ,  Jiwon Kwak

IPC: H10K85/60 ,  C07C211/54 ,  C07D307/91 ,  C07D333/50 ,  C07D333/76 ,  C09K11/06 ,  H10K50/12 ,  H10K50/18

Abstract: A light-emitting device including a first electrode, a second electrode facing the first electrode, and an interlayer arranged between the first electrode and the second electrode and including an emission layer is provided. The interlayer includes a first compound, a second compound, and a third compound. The first compound is represented by Formula 1 and includes deuterium, the second compound is represented by Formula 1 and includes deuterium, the first compound and the second compound are different from each other, and the third compound is represented by Formula 2.