公开(公告)号：US20240074309A1

公开(公告)日：2024-02-29

申请号：US18495915

申请日：2023-10-27

Applicant: Samsung Display Co., LTD.

Inventor： Hye Jeong PARK ,  Daehyeon KIM

IPC: H10K85/60 ,  C07D471/04 ,  C07D401/14 ,  C07D403/14

CPC classification number: H10K85/654 ,  H10K85/633 ,  H10K85/6572 ,  H10K85/6574 ,  C07D471/04 ,  C07D401/14 ,  C07D403/14 ,  H10K50/155

Abstract: An organic electroluminescence device of an embodiment may include 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 electron transport region may include a first compound represented by Formula 1, thereby improving the moving speed of electrons. Accordingly, the organic electroluminescence device of an embodiment may show decreased driving voltage and improved efficiency.

公开(公告)号：US20200185606A1

公开(公告)日：2020-06-11

申请号：US16575109

申请日：2019-09-18

Applicant: Samsung Display Co., Ltd.

Inventor： Jungsub LEE ,  Hyein JEONG ,  Hye Jeong PARK

IPC: H01L51/00 ,  C07F5/02 ,  C09K11/06 ,  C07D495/06

Abstract: An organic electroluminescence device according to an embodiment of the present disclosure includes a first electrode, a hole transport region, an emission layer, an electron transport region, and a second electrode, in which the emission layer includes a polycyclic compound represented by Formula 1, thereby achieving improved emission efficiency:

公开(公告)号：US20210273177A1

公开(公告)日：2021-09-02

申请号：US17072654

申请日：2020-10-16

Applicant: Samsung Display Co., LTD.

Inventor： Hye Jeong PARK ,  Daehyeon KIM

IPC: H01L51/00

Abstract: An organic electroluminescence device of an embodiment may include 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 electron transport region may include a first compound represented by Formula 1, thereby improving the moving speed of electrons. Accordingly, the organic electroluminescence device of an embodiment may show decreased driving voltage and improved efficiency.

公开(公告)号：US20200185605A1

公开(公告)日：2020-06-11

申请号：US16547504

申请日：2019-08-21

Applicant: Samsung Display Co., Ltd.

Inventor： JUNGSUB LEE ,  Hyein JEONG ,  Hye Jeong PARK

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

Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode and a plurality of organic layers disposed between the first electrode and the second electrode, in which at least one of the organic layers includes a polycyclic compound including a plurality of electron donors and an electron acceptor connecting the electron donors, at least one of the electron donors is a condensed ring including a borepine core, and the electron acceptor includes a phenyl group including, as a substituent, at least one cyano group or a heterocycle including at least one nitrogen atom, or a heteroaryl group including an oxygen atom or a sulfur atom for forming a ring, thereby achieving improved emission efficiency.