公开(公告)号：US11335862B2

公开(公告)日：2022-05-17

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 ,  H01L51/50

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：US12219870B2

公开(公告)日：2025-02-04

申请号：US17146993

申请日：2021-01-12

Applicant: Samsung Display Co., LTD.

Inventor： Hye Jeong Park

IPC: H10K85/60 ,  C07D471/04 ,  H10K50/15 ,  H10K50/16

Abstract: An organic electroluminescence device includes a first electrode, a second electrode disposed on the first electrode, and functional layers disposed between the first electrode and the second electrode. At least one functional layer of the functional layers includes a compound represented by Formula 1, thereby having low driving voltage, high light emission efficiency, and long life characteristics.

公开(公告)号：US11569457B2

公开(公告)日：2023-01-31

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 ,  H01L51/50

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.

公开(公告)号：US11849635B2

公开(公告)日：2023-12-19

申请号：US17072654

申请日：2020-10-16

Applicant: Samsung Display Co., LTD.

Inventor： Hye Jeong Park ,  Daehyeon Kim

IPC: H10K85/60 ,  H10K50/155 ,  H10K50/16 ,  C07D471/04 ,  C07D401/14 ,  C07D403/14

CPC classification number: H10K85/654 ,  C07D401/14 ,  C07D403/14 ,  C07D471/04 ,  H10K85/633 ,  H10K85/6572 ,  H10K85/6574 ,  H10K50/155 ,  H10K50/166

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.