公开(公告)号：US20220231253A1

公开(公告)日：2022-07-21

申请号：US17451624

申请日：2021-10-20

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeongpil Kim ,  Jungmin Kang ,  Kyungsik Kim ,  Seokgyu Yoon ,  Jaeyong Lee ,  Kunwook Cho

IPC: H01L51/50 ,  H01L51/00 ,  C09K11/06

Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer located between the first electrode and the second electrode and including an emission layer, wherein the interlayer includes a hole transport region located between the first electrode and the emission layer, the hole transport region includes a hole injection layer, the first electrode includes a conductive oxide and a first inorganic material, and the hole injection layer includes a second inorganic material. An electronic apparatus includes the light-emitting device.

公开(公告)号：US12082497B2

公开(公告)日：2024-09-03

申请号：US17277710

申请日：2019-03-12

Applicant: Samsung Display Co., Ltd.

Inventor： Seulong Kim ,  Jungmin Kang ,  Tsuyoshi Naijo ,  Hyein Jeong ,  Soungwook Kim

IPC: H01L51/50 ,  C07D471/06 ,  C09K11/06 ,  H10K85/60 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/18 ,  H10K101/10 ,  H10K101/30

CPC classification number: H10K85/636 ,  C07D471/06 ,  C09K11/06 ,  C09K2211/1018 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/171 ,  H10K50/18 ,  H10K85/654 ,  H10K85/6572 ,  H10K2101/10 ,  H10K2101/30

Abstract: An organic light-emitting device includes a condensed cyclic compound represented by Formula 1:




The condensed cyclic compound has an electron withdrawing group (EWG) substituent and an electron donating group (EDG) substituent at suitable positions, and thus has a low ΔEST and may be used as an effective thermally activated delayed fluorescence (TADF) light-emitting material.

公开(公告)号：US12035553B2

公开(公告)日：2024-07-09

申请号：US17307451

申请日：2021-05-04

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeongpil Kim ,  Jungmin Kang ,  Kyungsik Kim ,  Seokgyu Yoon ,  Jaeyong Lee ,  Kunwook Cho

IPC: H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K59/12 ,  H10K59/38

CPC classification number: H10K50/15 ,  H10K50/16 ,  H10K50/171 ,  H10K59/12 ,  H10K59/38

Abstract: A light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode, the interlayer including an emission layer. The first electrode may be doped with a metal oxide having a work function of less than about −5.05 electron volts (eV), and a layer including a halide of a lanthanide may be between the first electrode and the emission layer. An electronic apparatus including the light-emitting device is also provided.