公开(公告)号：US20210184151A1

公开(公告)日：2021-06-17

申请号：US17030365

申请日：2020-09-23

Applicant: Samsung Display Co, Ltd.

Inventor： Hangeul LEE ,  Heejoo KO ,  Minkyung KIM ,  Hojung SYN

IPC: H01L51/50 ,  H01L51/00

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode, wherein, the organic layer further includes an emission region, and a first region disposed between the first electrode and the emission region, and a second region disposed between the emission region and the second electrode, the second region includes a first layer and a second layer, each including an organic compound, the emission region includes a first compound, a second compound, a third compound, and a fourth compound, the first compound includes a hole transporting host compound, the second compound includes an electron transporting host compound or a bipolar host compound, the third compound includes a thermally active delayed fluorescence compound or an organometallic complex, satisfying Equation 1 as described herein.

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：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：US20210074940A1

公开(公告)日：2021-03-11

申请号：US17009286

申请日：2020-09-01

Applicant: Samsung Display Co., Ltd.

Inventor： Eunhye SONG ,  Heejoo KO ,  Minkyung KIM ,  Hangeul LEE

IPC: H01L51/50 ,  H01L51/00

Abstract: Organic light-emitting devices and apparatuses including the same have improved lifespans due to certain, defined material conditions and compositions.

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.