公开(公告)号：US20230010262A1

公开(公告)日：2023-01-12

申请号：US17159944

申请日：2021-01-27

Applicant: Samsung Display Co., LTD.

Inventor： Takao SAKUMA

IPC: H01L51/00

Abstract: An organic electroluminescence device includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region. The hole transport region includes an amine compound represented by Formula 1, thereby exhibiting high light emission efficiency.

公开(公告)号：US20220246858A1

公开(公告)日：2022-08-04

申请号：US17447533

申请日：2021-09-13

Applicant: Samsung Display Co., Ltd.

Inventor： Takao SAKUMA

IPC: H01L51/00 ,  C07D209/86 ,  C09K11/06 ,  C07D405/14

Abstract: A light emitting element includes a first electrode, a second electrode, and at least one functional layer disposed between the first electrode and the second electrode, in which the at least one functional layer includes a polycyclic compound represented by Formula 1, and the light emitting element thereby exhibits improved service life characteristics:

公开(公告)号：US20220173325A1

公开(公告)日：2022-06-02

申请号：US17381815

申请日：2021-07-21

Applicant: Samsung Display Co., Ltd.

Inventor： Taku IMAIZUMI ,  Takao SAKUMA

IPC: H01L51/00

Abstract: A light emitting diode includes a first electrode, a second electrode disposed on the first electrode, and at least one functional layer disposed between the first electrode and the second electrode. The at least one functional layer includes an amine compound represented by Formula 1, thereby showing high emission efficiency properties and improved life characteristics.