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：US20240334727A1

公开(公告)日：2024-10-03

申请号：US18732512

申请日：2024-06-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Heejoo KO

IPC: H10K50/13 ,  H10K50/11 ,  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：US20200266374A1

公开(公告)日：2020-08-20

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：US20230232709A1

公开(公告)日：2023-07-20

申请号：US17990927

申请日：2022-11-21

Applicant: Samsung Display Co., Ltd.

Inventor： Heejoo KO ,  Changwoong CHU

IPC: H01L51/00 ,  C09K11/06

CPC classification number: H01L51/0067 ,  H01L51/0087 ,  C09K11/06 ,  H01L51/0094 ,  H01L51/0072 ,  H01L51/5016

Abstract: Provided is a light-emitting device which may include 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, wherein the emission layer includes a host and a dopant, the host includes a first compound and a second compound, the dopant includes a third compound and a fourth compound, the first compound, the second compound, the third compound, and the fourth compound are different from each other, the third compound is a platinum-containing organometallic compound, the platinum-containing organometallic compound includes platinum and a first ligand bonded to the platinum, the first ligand includes a carbene group, the carbon of the carbene group and the platinum are bonded together, and Expression 1 is satisfied, which is explained in the specification.

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.

公开(公告)号：US20210359226A1

公开(公告)日：2021-11-18

申请号：US17082804

申请日：2020-10-28

Applicant: Samsung Display Co., Ltd.

Inventor： Heejoo KO ,  Eunhye SONG

IPC: H01L51/00

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：US20180019408A1

公开(公告)日：2018-01-18

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

CPC classification number: H01L51/0072 ,  C07C211/54 ,  C07C2601/14 ,  C07D209/86 ,  H01L51/0059 ,  H01L51/5004 ,  H01L51/504 ,  H01L51/5056 ,  H01L51/508 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5278 ,  H01L2251/301 ,  H01L2251/303 ,  H01L2251/552

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.