公开(公告)号：US20230180504A1

公开(公告)日：2023-06-08

申请号：US18070310

申请日：2022-11-28

Applicant: Samsung Display Co., Ltd.

Inventor： Yunhyuk Ko ,  Changhee Lee ,  Yunku Jung ,  Changyeol Han

IPC: H10K50/16 ,  H10K50/115 ,  H10K59/123

CPC classification number: H01L51/5072 ,  H01L51/502 ,  H01L27/3248

Abstract: A light-emitting device and an electronic apparatus including the light-emitting device. The 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 may include an emission layer and an electron transport layer, the electron transport layer may be between the emission layer and the second electrode, the electron transport layer may include an electron transporting particle, the electron transporting particle may include a core, a first shell covering the core, and a second shell covering the first shell, the first shell may include a first compound, the second shell may include a second compound, the core may include a third compound, and the first compound and the second compound may each independently include an oxide, a chalcogenide, or any combination thereof.

公开(公告)号：US20230045448A1

公开(公告)日：2023-02-09

申请号：US17853872

申请日：2022-06-29

Applicant: Samsung Display Co., Ltd. ,  Hannam University Institute for Industry-Academia Cooperation

Inventor： Yunhyuk Ko ,  Dongryeol Whang ,  Changhee Lee ,  Kwangsup Lee ,  Prem PRABHAKARAN ,  Daeho Hwang

IPC: H01L51/50 ,  C09K11/88 ,  C09K11/74 ,  C09K11/70 ,  C09K11/66 ,  C09K11/62 ,  C09K11/56 ,  C09D11/033 ,  C09D11/03

Abstract: A quantum dot, and an ink composition, a light-emitting device, an optical member, and an apparatus, each including the quantum dot. The quantum dot includes: a nanoparticle; and at least one ligand on a surface of the nanoparticle, wherein the nanoparticle does not include mercury and cadmium, and the at least one ligand includes at least two thiol groups and at least one hydrophilic group.

公开(公告)号：US20230038085A1

公开(公告)日：2023-02-09

申请号：US17849542

申请日：2022-06-24

Applicant: Samsung Display Co., Ltd.

Inventor： Hyunmi Doh ,  Changhee Lee ,  Jingoo Kang ,  Sehun Kim ,  Yonghwi Kim ,  Jonghoon Kim ,  Seunguk Noh ,  Myoungjin Park ,  Yunku Jung

IPC: C01G9/02 ,  H01L51/50 ,  H01L51/56

Abstract: A method of manufacturing an inorganic oxide particle having an inorganic oxide core and a hydroxyl group bonded to a surface thereof includes: preparing a first composition including an inorganic oxide core precursor and a proton supply compound; and heating the first composition. Additional embodiments provide a method of manufacturing an inorganic oxide layer including an inorganic oxide particle manufactured by the method, and a light-emitting device including an inorganic oxide layer manufactured by the method.

公开(公告)号：US20220367830A1

公开(公告)日：2022-11-17

申请号：US17660722

申请日：2022-04-26

Applicant: Samsung Display Co., Ltd.

Inventor： Yunku Jung ,  Changhee Lee ,  Hyekyoung Choi ,  Jaekook Ha

IPC: H01L51/50 ,  H01L51/56 ,  H01L51/00 ,  C07C245/12 ,  C07C245/06 ,  C07C321/06 ,  C07F15/00 ,  C07F19/00 ,  C07D209/86 ,  C07D401/12 ,  C07D409/12 ,  C07C211/61 ,  C07D307/91 ,  C07D405/12 ,  C07C211/54 ,  C07C211/55 ,  C07D487/04 ,  C07C255/34 ,  C07C255/31 ,  C07D235/18 ,  C07D213/06 ,  C07D401/04 ,  C07C15/28 ,  C07D403/10 ,  C07D251/24 ,  C07D239/26 ,  C07D519/00 ,  C07D403/14 ,  C07D249/08 ,  C07F5/06 ,  C07F1/02

Abstract: Disclosed are a light-emitting device and a method of manufacturing the same. The light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode and including a quantum dot including a first ligand bonded to a surface thereof; and a charge transport layer including an inorganic nanoparticle including a second ligand bonded to a surface thereof, wherein an interface between the emission layer and the charge transport layer includes a cross-link in which the first ligand on the surface of the quantum dot and the second ligand on the surface of the inorganic nanoparticle are linked by a cross-linking agent.

公开(公告)号：US12137600B2

公开(公告)日：2024-11-05

申请号：US17511964

申请日：2021-10-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dongjin Kang ,  Changhee Lee

IPC: H10K65/00 ,  G06V40/13 ,  H10K39/32 ,  H10K59/12 ,  H10K59/38

Abstract: A display apparatus includes: a first unit pixel including a plurality of light-emitting diodes, and a second unit pixel including a plurality of light-emitting diodes and a photodetector diode. Each of the plurality of light-emitting diodes includes a first electrode, a second electrode facing the first electrode, and an emission layer disposed between the first electrode and the second electrode, and the photodetector diode includes a third electrode, a fourth electrode facing the third electrode, an active layer disposed between the third electrode and the fourth electrode, and a color filter layer disposed between the fourth electrode and the active layer.

公开(公告)号：US20240002724A1

公开(公告)日：2024-01-04

申请号：US18320086

申请日：2023-05-18

Applicant: Samsung Display Co., Ltd. ,  Hannam University Institute for Industry- Academia Cooperation

Inventor： Yunhyuk Ko ,  Changhee Lee ,  Taedong Kim ,  Prem Prabhakaran ,  Kanghyeok Lee

IPC: C09K11/88 ,  H01L33/06 ,  H01L33/26 ,  C09K11/06

CPC classification number: C09K11/883 ,  H01L33/06 ,  H01L33/26 ,  C09K11/06 ,  B82Y20/00

Abstract: A quantum dot ligand, a quantum dot complex including the same, a quantum dot composition including the quantum dot complex, and a light-emitting device including the quantum dot complex are provided. The quantum dot ligand is a polymer including: a first unit having a functional group having a charge transport function; and a second unit having at least one crosslinkable functional group and at least one functional group capable of binding to a quantum dot.

公开(公告)号：US20230422537A1

公开(公告)日：2023-12-28

申请号：US18193218

申请日：2023-03-30

Applicant: Samsung Display Co., Ltd.

Inventor： Jonghoon Kim ,  Sehun Kim ,  Changhee Lee ,  Jingoo Kang ,  Yonghwi Kim ,  Myoungjin Park ,  Jaekook Ha

IPC: H10K50/115 ,  H10K50/16 ,  H10K50/15 ,  H10K50/00 ,  H10K50/828 ,  H10K85/60

CPC classification number: H10K50/115 ,  H10K50/16 ,  H10K50/15 ,  H10K50/401 ,  H10K50/828 ,  H10K85/626 ,  H10K85/6572 ,  H10K85/633 ,  H10K2102/103

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, wherein the emission layer includes: a first emission layer including a first quantum dot and a p-type compound; and a second emission layer including a second quantum dot and an n-type compound, the second emission layer is in a direction of the first electrode, and the first electrode is a cathode.

公开(公告)号：US11777058B2

公开(公告)日：2023-10-03

申请号：US16943829

申请日：2020-07-30

Applicant: Samsung Display Co., Ltd.

Inventor： Yunku Jung ,  Changhee Lee ,  Yunhyuk Ko ,  Dukki Kim ,  Jongwon Park ,  Jaekook Ha

IPC: H01L33/26 ,  H01L25/075 ,  G09F9/33

CPC classification number: H01L33/26 ,  H01L25/0753 ,  G09F9/33

Abstract: A light-emitting device (LED) includes a first semiconductor layer, a second semiconductor layer facing the first semiconductor layer, an insulating layer arranged to at least partially surround outer surfaces of the first semiconductor layer and the second semiconductor layer, and a first ligand bonded to a surface of the insulating layer and a second ligand bonded to the first ligand.

公开(公告)号：US20230217676A1

公开(公告)日：2023-07-06

申请号：US18146944

申请日：2022-12-27

Applicant: Samsung Display Co., Ltd.

Inventor： Heunggyu Kim ,  Sehun Kim ,  Myoungjin Park ,  Soohyun Park ,  Eunho Song ,  Yonghan Lee ,  Changhee Lee ,  Junghwan Lim ,  Jaekook Ha

IPC: H10K50/16 ,  H10K71/00 ,  H10K59/35 ,  H10K85/60

CPC classification number: H01L51/508 ,  H01L51/56 ,  H01L27/3211 ,  H01L51/0056 ,  H01L51/0074 ,  H01L51/005 ,  H01L27/3244

Abstract: A light-emitting device having an electron transport layer that includes a first electron transport layer including an inorganic oxide and a second electron transport layer including an organic material is provided. The first electrode is a reflective electrode.

公开(公告)号：US20230135917A1

公开(公告)日：2023-05-04

申请号：US17903956

申请日：2022-09-06

Applicant: Samsung Display Co., Ltd.

Inventor： Sehun Kim ,  Changhee Lee ,  Jaekook Ha ,  Jingoo Kang ,  Youngmo Koo ,  Youngil Kim ,  Jiyoon Kim

IPC: H01L51/50 ,  H01L51/56 ,  H01L51/00

Abstract: A light-emitting device includes: a substrate; a cathode on the substrate; an anode on the cathode; and an organic layer arranged between the cathode and the anode and including an emission layer. The organic layer includes: an electron transport region between the emission layer and the cathode; and a hole transport region between the emission layer and the anode, wherein the hole transport region includes a first compound including a first repeating unit represented by Formula 1, a second compound represented by Formula 2, a fifth compound represented by Formula 5, or any combination thereof, wherein Formulas 1, 2, and 5 are respectively the same as described herein.