公开(公告)号：US20220255015A1

公开(公告)日：2022-08-11

申请号：US17591766

申请日：2022-02-03

Applicant: Samsung Display Co., Ltd.

Inventor： Jonghyeon LEE ,  Hangeul LEE

IPC: H01L51/00

Abstract: Provided are a light-emitting device and an electronic apparatus including the light-emitting device. The light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer disposed between the first electrode and the second electrode. The interlayer includes an emission layer and an n-doping layer disposed between the emission layer and the second electrode. The emission layer includes a first compound, a second compound, and a light-emitting dopant, the n-doping layer includes a third compound and an n-dopant, and does not include the light-emitting dopant, the first compound includes a hole transport host, the second compound and the third compound each independently include an electron transport host, a bipolar host, or any combination thereof, and the second compound and the third compound are identical to or different from each other.

公开(公告)号：US20210098720A1

公开(公告)日：2021-04-01

申请号：US16883251

申请日：2020-05-26

Applicant: Samsung Display Co., Ltd.

Inventor： Heejoo KO ,  Eunhye SONG ,  Jonghyeon LEE ,  Hangeul LEE

IPC: H01L51/00 ,  C07F7/08

Abstract: A heterocyclic compound represented by Formula 1 and an organic light-emitting device including the same are provided, wherein the substituents in Formula 1 are the same as defined in the detailed descriptions.

公开(公告)号：US20220271234A1

公开(公告)日：2022-08-25

申请号：US17502766

申请日：2021-10-15

Applicant: Samsung Display Co., Ltd.

Inventor： Jonghyeon LEE ,  Hangeul LEE

IPC: H01L51/00

Abstract: Provided are an organic light-emitting device and an apparatus including the same. The organic light-emitting device includes a first electrode, a second electrode, and an organic layer disposed between the first electrode and the second electrode. The organic layer includes an emission layer, a first region between the first electrode and the emission layer, a second region between the emission layer and the second electrode, and an auxiliary layer between the first region and the emission layer, and the emission layer includes a first compound, a second compound, a third compound, and a fourth compound. The organic light-emitting device exhibits a low driving voltage and a long lifespan.

公开(公告)号：US20230225191A1

公开(公告)日：2023-07-13

申请号：US17858532

申请日：2022-07-06

Applicant: Samsung Display Co., Ltd.

Inventor： Jonghyeon LEE

IPC: H01L51/00

CPC classification number: H01L51/0094 ,  H01L51/0054 ,  H01L51/0057 ,  H01L51/0064 ,  H01L51/0067 ,  H01L51/0059 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/0087 ,  H01L51/0085 ,  H01L2251/558 ,  H01L2251/5376 ,  H01L51/5064

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 includes an emission layer and a hole transport layer between the first electrode and the emission layer. The emission layer includes a first host, a second host, and a dopant, wherein the first host includes a hole-transporting host, and the second host includes an electron-transporting host or a bipolar host. The hole transport layer includes multiple hole transport layers, the hole transport layers each include a carbazole-based compound, and highest occupied molecular orbital (HOMO) energy levels of the carbazole-based compounds respectively included in neighboring ones of the hole transport layers are different from each other.