公开(公告)号：US11600795B2

公开(公告)日：2023-03-07

申请号：US16788628

申请日：2020-02-12

Applicant: Samsung Display Co., Ltd.

Inventor： Heejoo Ko

IPC: H01L51/50 ,  H01L51/00

Abstract: An organic light-emitting device and an electronic apparatus incorporating the same. The organic light-emitting device includes an anode, a cathode, and an organic layer between the anode and the cathode and comprising an emission region. The emission region includes a first emission layer, a second emission layer, and a first exciton quenching layer. The first emission layer comprises a first host and a first dopant, the second emission layer comprises a second host and a second dopant, and the first exciton quenching layer is disposed between the first emission layer and the second emission layer and comprises a first quenching material.

公开(公告)号：US20240431201A1

公开(公告)日：2024-12-26

申请号：US18614215

申请日：2024-03-22

Applicant: Samsung Display Co., Ltd.

Inventor： Heejoo Ko ,  Sunwoo Kang ,  Changwoong Chu

IPC: H10K85/60 ,  C07D209/86 ,  C07F7/08 ,  C09K11/06 ,  H10K50/11 ,  H10K50/18 ,  H10K85/40

Abstract: A light-emitting device including a heterocyclic compound and an electronic apparatus including the light-emitting device are provided. The heterocyclic compound described herein is also provided.

公开(公告)号：US20240324444A1

公开(公告)日：2024-09-26

申请号：US18664166

申请日：2024-05-14

Applicant: Samsung Display Co., LTD.

Inventor： Heejoo Ko ,  Eunhye Song

IPC: H10K85/30 ,  H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K50/84 ,  H10K85/40 ,  H10K85/60

CPC classification number: H10K85/346 ,  H10K85/322 ,  H10K85/40 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K50/84

Abstract: Provided is an organic light-emitting device including: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, wherein the emission layer may include a host and a dopant, the host may include a first compound and a second compound different from the first compound, the dopant may include a third compound and a fourth compound different from the third compound, and the third compound may be a platinum-containing organometallic compound.

公开(公告)号：US12035550B2

公开(公告)日：2024-07-09

申请号：US18099244

申请日：2023-01-19

Applicant: Samsung Display Co., Ltd.

Inventor： Heejoo Ko

IPC: H01L51/50 ,  H10K50/11 ,  H10K50/13 ,  H10K85/30 ,  H10K85/40 ,  H10K85/60 ,  H10K101/10

CPC classification number: H10K50/13 ,  H10K50/11 ,  H10K85/324 ,  H10K85/381 ,  H10K85/40 ,  H10K85/622 ,  H10K85/626 ,  H10K85/631 ,  H10K85/654 ,  H10K85/6565 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K2101/10

Abstract: An organic light-emitting device and an electronic apparatus incorporating the same. The organic light-emitting device includes an anode, a cathode, and an organic layer between the anode and the cathode and comprising an emission region. The emission region includes a first emission layer, a second emission layer, and a first exciton quenching layer. The first emission layer comprises a first host and a first dopant, the second emission layer comprises a second host and a second dopant, and the first exciton quenching layer is disposed between the first emission layer and the second emission layer and comprises a first quenching material.

公开(公告)号：US20210151691A1

公开(公告)日：2021-05-20

申请号：US17035448

申请日：2020-09-28

Applicant: Samsung Display Co., Ltd.

Inventor： Bohyun YOON ,  Heejoo Ko ,  Jinwon SUN ,  Hyun Shin

IPC: H01L51/00 ,  C09K11/06

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 and including a first emission layer and a second emission layer; wherein the first emission layer is located closer to the first electrode than the second emission layer and includes a first hole transport host, a first electron transport host, and a first phosphorescent dopant, and, in the first emission layer, an amount of the first hole transport host is greater than an amount of the first electron transport host, the second emission layer includes a second hole transport host, a second electron transport host, and a second phosphorescent dopant, and, in the second emission layer, an amount of the second electron transport host is greater than an amount of the second hole transport host, and the first emission layer and the second emission layer are configured to emit light of substantially the same color.

公开(公告)号：US12022726B2

公开(公告)日：2024-06-25

申请号：US17082804

申请日：2020-10-28

Applicant: Samsung Display Co., Ltd.

Inventor： Heejoo Ko ,  Eunhye Song

IPC: H01L51/50 ,  H10K85/30 ,  H10K85/40 ,  H10K85/60 ,  H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K50/84

CPC classification number: H10K85/346 ,  H10K85/322 ,  H10K85/40 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K50/84

Abstract: Provided is an organic light-emitting device including: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, wherein the emission layer may include a host and a dopant, the host may include a first compound and a second compound different from the first compound, the dopant may include a third compound and a fourth compound different from the third compound, and the third compound may be a platinum-containing organometallic compound.

公开(公告)号：US20240008361A1

公开(公告)日：2024-01-04

申请号：US18306364

申请日：2023-04-25

Applicant: Samsung Display Co., Ltd.

Inventor： Heejoo Ko ,  Sunwoo Kang ,  Pyungeun Jeon ,  Changwoong Chu

IPC: H10K85/60 ,  C09K11/06 ,  H10K85/40 ,  H10K85/30

CPC classification number: H10K85/636 ,  C09K11/06 ,  H10K85/6572 ,  H10K85/40 ,  H10K85/346 ,  H10K85/654 ,  H10K50/12

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, wherein the interlayer includes an emission layer, a hole transport layer, and an electron transport layer. The emission layer includes an electron transport host compound and a dopant. A hole mobility of the hole transport layer is greater than 1×10−4 cm2/Vs, an electron mobility of the electron transport layer is greater than 1×10−5 cm2/Vs, and an electron mobility of the electron transport host compound is less than 1×10−8 cm2/Vs.

公开(公告)号：US11647669B2

公开(公告)日：2023-05-09

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: H01L51/50 ,  H01L51/00 ,  C07F7/08 ,  H01L51/56

CPC classification number: H01L51/0094 ,  C07F7/0812 ,  H01L51/001 ,  H01L51/5004 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5072 ,  H01L51/5096 ,  H01L51/56 ,  H01L2251/552 ,  H01L2251/558

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：US20210184135A1

公开(公告)日：2021-06-17

申请号：US16987332

申请日：2020-08-06

Applicant: Samsung Display Co., Ltd.

Inventor： Minkyung Kim ,  Heejoo Ko ,  Jonghyeon Lee ,  Hangeul Lee

IPC: H01L51/00 ,  H01L27/32 ,  C07D409/14 ,  C09K11/06 ,  C07D495/04 ,  C07F15/00

Abstract: An 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 having a first emission layer, a second emission layer disposed between the first emission layer and the second electrode, and at least one auxiliary layer, having a first host or a second host, the first emission layer may include a first host, a second host, and a first dopant; and the second emission layer may include a first host, a second host, and a second dopant; wherein the first host is a hole transport host, and the second host may include at least one of an electron transport host and a bipolar host; the first dopant and the second dopant, each may include, independently from one another, at least one of a phosphorescent organometallic compound and a thermally activated delayed fluorescence (“TADF”) compound satisfying Equation 1 as defined herein.

公开(公告)号：US10396296B2

公开(公告)日：2019-08-27

申请号：US15602581

申请日：2017-05-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Heejoo Ko

IPC: H01L51/00 ,  C07C211/54 ,  C07D209/86 ,  H01L51/50 ,  H01L51/52

Abstract: An organic light-emitting device includes electrodes and light-emitting units that each include an emission layer; and a charge generation layer, including n- and p-type charge generation layers, disposed between each adjacent pair of light-emitting units. A wavelength of maximum intensity of light emitted from one of the light-emitting units may be different from another, an n-type charge generation layer may have a metal-containing material having a work function of about 2.0 eV to about 4.5 eV, and a p-type charge generation layer may be formed of a hole transport material, an absolute value of a HOMO energy level of the hole transport material being greater than about 5.5 eV, and an absolute value of a LUMO energy level of the hole transport material being less than that of a LUMO energy level of a hole transport layer of a light-emitting unit adjacent to the p-type charge generation layer.