公开(公告)号：US20220209117A1

公开(公告)日：2022-06-30

申请号：US17450684

申请日：2021-10-12

Applicant: Samsung Display Co., Ltd.

Inventor： Ryuhei FURUE ,  Hirokazu KUWABARA ,  Makoto YAMAMOTO ,  Yuji SUZAKI ,  Yuuki MIYAZAKI

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

Abstract: An organic electroluminescence device of one or more embodiments 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, wherein the first electrode and the second electrode each independently includes at least one selected among Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF/Ca, LiF/Al, Mo, Ti, In, Sn, Zn, compounds thereof, mixtures thereof, and oxides thereof, and the emission layer includes a polycyclic compound represented by Formula 1, thereby showing long life and high efficiency:

公开(公告)号：US20210210696A1

公开(公告)日：2021-07-08

申请号：US17124170

申请日：2020-12-16

Applicant: Samsung Display Co., Ltd.

Inventor： Yuuki MIYAZAKI ,  Ryuhei FURUE

IPC: H01L51/00

Abstract: An organic electroluminescence device of an embodiment of the present disclosure 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, wherein the emission layer may include a nitrogen-containing compound represented by Formula 1, thereby exhibiting a long service life. In Formula 1, at least one of A1 to A5 is represented by Formula 2, and at least another one of A1 to A5 is represented by Formula 3:

公开(公告)号：US20210210695A1

公开(公告)日：2021-07-08

申请号：US17074454

申请日：2020-10-19

Applicant: Samsung Display Co., Ltd.

Inventor： Ryuhei FURUE ,  Hirokazu KUWABARA ,  Nobutaka AKASHI

IPC: H01L51/00 ,  C07D487/14 ,  C09K11/06

Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode, and a plurality of functional layers disposed between the first electrode and the second electrode, wherein at least one functional layer of the plurality of functional layers includes a polycyclic compound represented by Formula 1, thereby showing excellent light emitting efficiency in a short wavelength region:

公开(公告)号：US20210175431A1

公开(公告)日：2021-06-10

申请号：US16998943

申请日：2020-08-20

Applicant: Samsung Display Co., Ltd.

Inventor： Hirokazu KUWABARA ,  Ryuhei FURUE

IPC: H01L51/00

Abstract: An organic electroluminescence device (OLED) of an embodiment includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode The emission layer may include a condensed polycyclic compound represented by Formula 1, which is connected to two or three substituents represented by Formula 2, and the OLED may exhibit excellent luminous efficiency:

公开(公告)号：US20210175423A1

公开(公告)日：2021-06-10

申请号：US16998920

申请日：2020-08-20

Applicant: Samsung Display Co., Ltd.

Inventor： Hirokazu KUWABARA ,  Yoshiro SUGITA ,  Ryuhei FURUE

IPC: H01L51/00 ,  H01L51/50

Abstract: An organic electroluminescence device of an embodiment of the present disclosure 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 emission layer may include a polycyclic compound represented by Formula 1 to thereby exhibit high luminous efficiency: