公开(公告)号：US20230132112A1

公开(公告)日：2023-04-27

申请号：US17825408

申请日：2022-05-26

Applicant: Samsung Display Co., Ltd.

Inventor： MUN-KI SIM ,  TAEIL KIM ,  SUN YOUNG PAK ,  JUNHA PARK ,  JANG YEOL BAEK ,  Kyoung SUNWOO ,  CHANSEOK OH ,  MINJUNG JUNG

IPC: C07F5/02 ,  C07D209/84 ,  C07D405/14 ,  C07D409/14 ,  C07D251/24 ,  C07F7/08 ,  C07D403/04 ,  C07D403/14 ,  C07F15/00 ,  H01L51/00

Abstract: A light emitting device of an embodiment includes a first electrode, a second electrode oppositely disposed to the first electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer includes a first host represented by Formula H-1, a second host represented by Formula H-2, and a first dopant represented by Formula 1, wherein Formulas H-1, H-2, and 1 are explained in the specification. The light emitting device shows improved emission efficiency properties.

公开(公告)号：US20220263026A1

公开(公告)日：2022-08-18

申请号：US17543385

申请日：2021-12-06

Applicant: Samsung Display Co., Ltd.

Inventor： CHANSEOK OH ,  TAEIL KIM ,  SUN YOUNG PAK ,  JUNHA PARK ,  JANG YEOL BAEK ,  Kyoung SUNWOO ,  MUN-KI SIM ,  MINJUNG JUNG

IPC: H01L51/00

Abstract: A light emitting device according to an embodiment includes a first electrode and a second electrode facing the first electrode, and a plurality of organic layers between the first electrode and the second electrode, wherein at least one among the plurality of organic layers includes a fused polycyclic compound represented by Formula 1 below, thereby showing improved emission efficiency.

公开(公告)号：US20220181557A1

公开(公告)日：2022-06-09

申请号：US17445164

申请日：2021-08-16

Applicant: Samsung Display Co., Ltd.

Inventor： MINJUNG JUNG ,  SERAN KIM ,  TAEIL KIM ,  SUN YOUNG PAK ,  JUNHA PARK ,  JANG YEOL BAEK ,  KYOUNG SUNWOO ,  MUN-KI SIM ,  CHANSEOK OH

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, and an electron transport region disposed on the emission layer, where the emission layer includes a polycyclic compound represented by Formula 1 to thereby exhibit high luminous efficiency:

公开(公告)号：US20220149292A1

公开(公告)日：2022-05-12

申请号：US17443429

申请日：2021-07-26

Applicant: Samsung Display Co., Ltd.

Inventor： TAEIL KIM ,  JUNHA PARK ,  SUN YOUNG PAK ,  JANG YEOL BAEK ,  Kyoung SUNWOO ,  MUN-KI SIM ,  CHANSEOK OH ,  MINJUNG JUNG

IPC: H01L51/00

Abstract: A light emitting device includes a first electrode, a second electrode, and at least one emission layer between the first electrode and the second electrode and includes at least one polycyclic compound represented by Formula 1 below, thereby exhibiting long service life characteristics. In Formula 1, the substituents are the same as defined in the detailed description.