公开(公告)号：US20220328768A1

公开(公告)日：2022-10-13

申请号：US17709742

申请日：2022-03-31

Applicant: Samsung Display Co., Ltd.

Inventor： Seulong KIM ,  Pilgu KANG ,  Hajin SONG ,  Jihwan YOON ,  Yangjin CHO ,  Jungho CHOI ,  Jaehoon HWANG

IPC: H01L51/00

Abstract: Provided are a heterocyclic compound, a light-emitting device including the heterocyclic compound, and an electronic apparatus including the light-emitting device. The heterocyclic compound is represented by Formula 1, which is explained in the specification. The light-emitting device is capable of maintaining efficiency and color expression at constant levels.

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：US20220293863A1

公开(公告)日：2022-09-15

申请号：US17684574

申请日：2022-03-02

Applicant: Samsung Display Co., Ltd.

Inventor： Seulong KIM ,  Hajin SONG ,  Yangjin CHO ,  Jaehoon HWANG

IPC: H01L51/00 ,  C07D403/04 ,  C09K11/06 ,  C07D403/14

Abstract: Provided are a light-emitting device and an electronic apparatus including the same. 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, the emission layer includes a host, a first dopant, and a second dopant, the host, the first dopant, and the second dopant are different from each other, the host includes a compound represented by Formula 1 below, and the light-emitting device satisfies Relationship Equation 1: S1(H)≥S1(D2)≥T1(H)≥T1(D1)≥T1(D2)  [Relationship Equation 1] Formula 1 and Relationship Equation 1 are as described in the specification.