公开(公告)号：US20250063884A1

公开(公告)日：2025-02-20

申请号：US18939409

申请日：2024-11-06

Applicant: Samsung Display Co., LTD.

Inventor： SUNGWOOK KIM ,  Kyungsik KIM ,  SeulOng KIM ,  TSUYOSHI NAIJO ,  SUNG-SOO BAE ,  Dongchan LEE ,  HYEIN JEONG ,  Hyewon CHOI ,  Seung-Jin CHU ,  Jaeweon HUR

IPC: H10K50/12 ,  H10K50/15 ,  H10K50/16

Abstract: A light emitting element includes: a first electrode, a second electrode facing the first electrode, a first light emitting layer between the first electrode and the second electrode to emit a first light, a second light emitting layer between the first light emitting layer and the second electrode to emit a second light, and an intermediate layer including a host material between the first light emitting layer and the second light emitting layer and, wherein the intermediate layer has a thickness of from about 90 nm to 170 nm.

公开(公告)号：US20210050542A1

公开(公告)日：2021-02-18

申请号：US16992837

申请日：2020-08-13

Applicant: Samsung Display Co., Ltd.

Inventor： Seulong KIM ,  Tsuyoshi NAIJO ,  Yunjee PARK ,  Sungsoo BAE ,  Dongchan LEE ,  Hyewon CHOI

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 between the first electrode and the second electrode, wherein the organic layer includes an emission layer, a first auxiliary layer, a second auxiliary layer, and an electron transport layer, the first auxiliary layer and the second auxiliary layer are disposed between the emission layer and the electron transport layer, the first auxiliary layer includes a first compound including a carbocyclic group that has three or more rings, and the second auxiliary layer includes: (i) a second compound that is a bipolar compound, (ii) a third compound that is a hole transport compound and a fourth compound that is an electron transport compound, or (iii) the second compound that is the bipolar compound and the fourth compound that is the electron transport compound.

公开(公告)号：US20220209133A1

公开(公告)日：2022-06-30

申请号：US17560206

申请日：2021-12-22

Applicant: Samsung Display Co., Ltd.

Inventor： Sungsoo BAE ,  Soungwook KIM ,  Seulong KIM ,  Hyein JEONG ,  Hyewon CHOI ,  Jaeweon HUR

IPC: H01L51/00

Abstract: An organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes: an emission region; a hole transport region between the first electrode and the emission region; and an electron transport region between the emission region and the second electrode, the emission region includes a first emission layer proximate to the hole transport region and a second emission layer proximate to the electron transport region, the first emission layer and the second emission layer are different from each other, and Equation 1 is satisfied, as described herein.

公开(公告)号：US20220190296A1

公开(公告)日：2022-06-16

申请号：US17551016

申请日：2021-12-14

Applicant: Samsung Display Co., Ltd.

Inventor： Hyewon CHOI ,  Soungwook KIM ,  Seulong KIM ,  Sungsoo BAE ,  Hyein JEONG ,  Jaeweon HUR

IPC: H01L51/52 ,  H01L51/00

Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; an interlayer between the first electrode and the second electrode and including an emission layer; and a first capping layer and a second capping layer outside the second electrode, wherein the first capping layer includes at least one compound selected from compounds represented by Formulae 1-1 to 1-3, as defined herein, and the second capping layer includes at least one compound selected from compounds represented by Formulae 2-1 to 2-6, as defined herein.

公开(公告)号：US20200251663A1

公开(公告)日：2020-08-06

申请号：US16738886

申请日：2020-01-09

Applicant: Samsung Display Co., Ltd.

Inventor： Hyewon CHOI ,  Sungwook KIM ,  SeulOng KIM ,  Tsuyoshi NAIJO ,  Hyein JEONG ,  JungMin KANG

IPC: H01L51/00 ,  H01L51/50

Abstract: Provided is an organic electroluminescence device including an emission layer between a first electrode and a second electrode, wherein the emission layer includes a first host represented by Formula 1, a second host which is different from the first host, a first dopant which is a thermally activated delayed fluorescence material having an electron donor and an electron acceptor, and a second dopant represented by Formula 2.

公开(公告)号：US20220278296A1

公开(公告)日：2022-09-01

申请号：US17674845

申请日：2022-02-18

Applicant: Samsung Display Co., Ltd.

Inventor： Jaeweon HUR ,  Seulong KIM ,  Hyein JEONG ,  Soungwook KIM ,  Sungsoo BAE ,  Hyewon CHOI

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/00 ,  C07F9/547 ,  C07F9/576 ,  C07F9/58 ,  C07F9/6553 ,  C07F9/655 ,  C07F9/6564 ,  C07D471/04 ,  C07D519/00 ,  C07D487/04 ,  C07D491/048

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; an interlayer located between the first electrode and the second electrode; and an electron transport capping layer located outside the second electrode, wherein the interlayer includes an emission layer and an electron transport region, one of the electron transport region and the electron transport capping layer includes a first compound represented by Formula 1, and the other one includes the first compound, a second compound represented by Formula 2, or a combination thereof, and the electron transport region further includes a metal dopant: wherein, Formulae 1 and 2 are the same as described in the specification.

公开(公告)号：US20210184152A1

公开(公告)日：2021-06-17

申请号：US16996599

申请日：2020-08-18

Applicant: Samsung Display Co., Ltd.

Inventor： Seungjin CHU ,  Kyungsik KIM ,  Sungwook KIM ,  Seulong KIM ,  Tsuyoshi NAIJO ,  Yunjee PARK ,  Sungsoo BAE ,  Dongchan LEE ,  Hyewon CHOI ,  Jaeweon HUR

IPC: H01L51/50 ,  H01L51/00

Abstract: An organic light-emitting device includes a mixed layer, an emission layer, and a buffer layer and satisfies one of Equation 1 or Equation 2 and Equation 3: T1(D)≥T1(Mix)+0.3 eV  Equation 1 T1(H)≥T1(Mix)+0.3 eV  Equation 2 T1(Mix)

公开(公告)号：US20210098713A1

公开(公告)日：2021-04-01

申请号：US16904419

申请日：2020-06-17

Applicant: Samsung Display Co., Ltd.

Inventor： Hyewon CHOI ,  Tsuyoshi Naijo ,  Yunjee Park ,  Sung-Soo Bae ,  Dongchan Lee

IPC: H01L51/00 ,  C09K11/06

Abstract: An organic electroluminescence device of the present embodiments includes a first electrode, a second electrode on the first electrode, and a first emission layer and a second emission layer, both between the first electrode and the second electrode, wherein the first emission layer includes a first host and a first dopant including an anthracene-based compound, the second emission layer includes a second host represented by Formula H-1 and a second dopant including an organometal compound, and the first emission layer and the second emission layer are adjacent to each other. The device of the present embodiments thereby shows high emission efficiency and long-life characteristics.

公开(公告)号：US20230413592A1

公开(公告)日：2023-12-21

申请号：US18449368

申请日：2023-08-14

Applicant: Samsung Display Co., LTD.

Inventor： SUNGWOOK KIM ,  Kyungsik KIM ,  SeulOng KIM ,  TSUYOSHI NAIJO ,  SUNG-SOO BAE ,  Dongchan LEE ,  HYEIN JEONG ,  Hyewon CHOI ,  Seung-Jin CHU ,  Jaeweon HUR

IPC: H10K50/12 ,  H10K50/15 ,  H10K50/16

CPC classification number: H10K50/12 ,  H10K50/16 ,  H10K50/15

Abstract: A light emitting element includes: a first electrode, a second electrode facing the first electrode, a first light emitting layer between the first electrode and the second electrode to emit a first light, a second light emitting layer between the first light emitting layer and the second electrode to emit a second light, and an intermediate layer including a host material between the first light emitting layer and the second light emitting layer and, wherein the intermediate layer has a thickness of from about 90 nm to 170 nm.

公开(公告)号：US20210098715A1

公开(公告)日：2021-04-01

申请号：US17028922

申请日：2020-09-22

Applicant: Samsung Display Co., Ltd. ,  Lapto Co., Ltd.

Inventor： Seulong KIM ,  Eu-gene OH ,  Munsoo KIM ,  JuWan MAENG ,  Kap-jong HAN ,  Jaeweon HUR ,  Hyewon CHOI ,  Kyungsik KIM ,  Sung-Soo BAE

IPC: H01L51/00

Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode opposite the first electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a polycyclic compound represented by Formula 1, thereby showing improved emission efficiency.