公开(公告)号：US20210028368A1

公开(公告)日：2021-01-28

申请号：US16933751

申请日：2020-07-20

Applicant: Samsung Display Co., Ltd.

Inventor： Jiyoung SONG ,  Seulong KIM ,  Pilgu KANG ,  Eungyoung PARK ,  Soonchul CHANG ,  Dongseob JEONG ,  Jaehoon HWANG

IPC: H01L51/00 ,  C07C15/38 ,  C09K11/06

Abstract: A condensed cyclic compound is represented by Formula 1 and satisfies Equation 1. An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an organic layer between the first electrode and the second electrode and including at least one light-emitting unit; and at least one of the condensed cyclic compound. |EH,HOMO−EH,HOMO-1|≤0.3 eV  Equation 1

公开(公告)号：US20210376248A1

公开(公告)日：2021-12-02

申请号：US17329903

申请日：2021-05-25

Applicant: Samsung Display Co., Ltd.

Inventor： Jiyoung SONG ,  Seulong KIM ,  Pilgu KANG ,  Eungyoung PARK ,  Hajin SONG ,  Hyekyun LEE ,  Soonchul CHANG ,  Dongseob JEONG ,  Yangjin CHO ,  Jina HUR

IPC: H01L51/00

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission region between the first electrode and the second electrode and including a first emission layer and a second emission layer; and a hole blocking layer between the first emission layer and the first electrode, or between the second emission layer and the second electrode, wherein the second emission layer may be between the first emission layer and the hole blocking layer, the first emission layer may include a first host and a first light-emitting material, the second emission layer may include a second host and a second light-emitting material, and the first light-emitting material and the second light-emitting material may respectively be included in the first emission layer and the second emission layer at an identical ratio.

公开(公告)号：US20250031572A1

公开(公告)日：2025-01-23

申请号：US18888377

申请日：2024-09-18

Applicant: Samsung Display Co., Ltd.

Inventor： Jiyoung SONG ,  Seulong KIM ,  Pilgu KANG ,  Eungyoung PARK ,  Hajin SONG ,  Hyekyun LEE ,  Soonchul CHANG ,  Dongseob JEONG ,  Yangjin CHO ,  Jina HUR

IPC: H10K85/60 ,  H10K50/11 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/18 ,  H10K85/30 ,  H10K85/40 ,  H10K101/10

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission region between the first electrode and the second electrode and including a first emission layer and a second emission layer; and a hole blocking layer between the first emission layer and the first electrode, or between the second emission layer and the second electrode, wherein the second emission layer may be between the first emission layer and the hole blocking layer, the first emission layer may include a first host and a first light-emitting material, the second emission layer may include a second host and a second light-emitting material, and the first light-emitting material and the second light-emitting material may respectively be included in the first emission layer and the second emission layer at an identical ratio.

公开(公告)号：US20220029136A1

公开(公告)日：2022-01-27

申请号：US17241769

申请日：2021-04-27

Applicant: Samsung Display Co., Ltd.

Inventor： Jiyoung SONG ,  Seulong KIM ,  Eungyoung PARK ,  Hajin SONG ,  Dongseob JEONG

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50 ,  H01L51/00

Abstract: Provided is a light-emitting device including: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including an emission layer. The emission layer includes: a first emission layer including a first host; and a second emission layer including a second host, wherein a triplet energy (T1H1) of the first host and a triplet energy (T1H2) of the second host satisfy Equation (1): T1H1−T1H2≥0.2 eV  (1).

公开(公告)号：US20220165955A1

公开(公告)日：2022-05-26

申请号：US17393958

申请日：2021-08-04

Applicant: Samsung Display Co., Ltd.

Inventor： Seulong KIM ,  Eungyoung PARK ,  Jiyoung SONG

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

Abstract: A light emitting device includes a first electrode, a second electrode facing the first electrode, and at least one emission layer disposed between the first electrode and the second electrode. The at least one emission layer includes a polycyclic compound represented by Formula 1, thereby exhibiting long service life characteristics.

公开(公告)号：US20210013440A1

公开(公告)日：2021-01-14

申请号：US16881591

申请日：2020-05-22

Applicant: Samsung Display Co., Ltd.

Inventor： Seulong KIM ,  Taekyung KIM ,  Pilgu KANG ,  Jiyoung KWON ,  Eungyoung PARK ,  Jiyoung SONG ,  Soon-Chul CHANG ,  Dongseob JEONG

IPC: H01L51/50 ,  H01L51/52 ,  H01L27/32

Abstract: A light emitting device includes a first electrode, a first stack on the first electrode, a first charge generation layer on the first stack, a second stack on the first charge generation layer, and a second electrode on the second stack. The first stack includes a first light emitting layer and a plurality of first organic layers, and the second stack includes a second light emitting layer and a plurality of second organic layers. Among the plurality of first organic layers and the plurality of second organic layers, at least one of organic layers adjacent to the first light emitting layer and the second light emitting layer includes a light emitting material.