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公开(公告)号：US20240206219A1
公开(公告)日：2024-06-20
申请号：US18465289
申请日：2023-09-12
发明人： Jonghoon Kim , Changhee Lee , Jingoo Kang , Sehun Kim , Yonghwi Kim , Myoungjin Park , Jongwoo Shin , Juyon Lee , Jaekook Ha
摘要： An electron transport layer including a mixed composition including a solvent, a metal oxide, and a metal halogen compound.
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公开(公告)号：US11959001B2
公开(公告)日：2024-04-16
申请号：US17212630
申请日：2021-03-25
发明人： Changhee Lee , Sehun Kim , Hyojin Ko , Dukki Kim , Jaehoon Kim , Hyunmi Doh , Yunku Jung , Jaekook Ha
IPC分类号： C09K11/08 , C09K11/06 , B82Y20/00 , B82Y30/00 , B82Y40/00 , H10K50/115 , H10K50/15 , H10K50/16 , H10K102/00
CPC分类号： C09K11/08 , C09K11/06 , B82Y20/00 , B82Y30/00 , B82Y40/00 , H10K50/115 , H10K50/15 , H10K50/16 , H10K2102/00
摘要： A quantum dot composition includes a quantum dot having a surface to which a ligand is bonded, and a thermal decomposition auxiliary compound. The quantum dot composition may be applied to an emission layer of a light emitting element and a display device, thereby improving luminous efficiency of the light emitting element and the display device.
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公开(公告)号：US20230320123A1
公开(公告)日：2023-10-05
申请号：US18165227
申请日：2023-02-06
发明人： Sehun Kim , Changhee Lee , Jiyoon Kim , Heunggyu Kim , Jaekook Ha
CPC分类号： H10K50/171 , H10K30/82 , H10K50/115 , H10K50/15 , H10K50/16 , H10K50/17 , H10K85/611 , H10K85/615 , H10K85/631 , H10K85/657 , H10K85/6572 , H10K85/6574 , H10K85/6576 , H10K2102/103
摘要： A light-emitting device that includes a first electrode, a second electrode and an interlayer between the first electrode and the second electrode and including an emission layer is provided. An electron injection layer and an electron transport layer are between the emission layer and the first electrode. The electron injection layer includes: an oxide of: Zn; Ti; Mg; or any combination thereof, the electron transport layer includes a phosphine oxide compound, and the first electrode of the light-emitting device may be a reflective electrode.
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4.发明授权公开(公告)号：US11667834B2
公开(公告)日：2023-06-06
申请号：US17198752
申请日：2021-03-11
发明人： Changhee Lee , Sehun Kim , Hyojin Ko , Dukki Kim , Jaehoon Kim , Hyunmi Doh , Yunku Jung , Jaekook Ha
CPC分类号： C09K11/025 , H01L51/502 , H01L51/56 , B82Y20/00 , B82Y40/00
摘要： A method for manufacturing a light emitting element includes: forming a first electrode; forming a hole transport region on a first electrode; forming an emission layer on the hole transport region; forming an electron transport region on the emission layer; and forming a second electrode on the electron transport region, wherein the forming of the emission layer includes providing a quantum dot composition containing a quantum dot and a ligand bonded to a surface of the quantum dot, to form a preliminary emission layer; and increasing the layer density of the preliminary emission layer by about 5% or greater, thereby improving a luminous efficiency of the light emitting element.
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公开(公告)号：US11649401B2
公开(公告)日：2023-05-16
申请号：US16924658
申请日：2020-07-09
发明人： Sehun Kim , Changhee Lee , Junbo Sim , Jaekook Ha
CPC分类号： C09K11/02 , C09K11/0883 , C09K11/703 , B82Y20/00 , B82Y40/00
摘要： A quantum dot-containing material includes: a quantum dot-containing complex including a quantum dot and a first matrix material; and a second matrix material, wherein the quantum dot is dispersed in the first matrix material, the quantum dot-containing complex is dispersed in the second matrix material, and a refractive index of the first matrix material is greater than that of the second matrix material.
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公开(公告)号：US20230025948A1
公开(公告)日：2023-01-26
申请号：US17574467
申请日：2022-01-12
发明人： Youngil Kim , Changhee Lee , Sehun Kim , Jingoo Kang , Seunguk Noh , Jaekook Ha
摘要： 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 and including an emission layer, wherein the interlayer may include a layer including a metal oxide, and a surface of the layer including a metal oxide is an organic acid-treated surface.
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公开(公告)号：US11955468B2
公开(公告)日：2024-04-09
申请号：US16932591
申请日：2020-07-17
发明人： Yunku Jung , Sungwoon Kim , Changhee Lee , Jaekook Ha , Yunhyuk Ko , Jaehoon Kim , Minki Nam , Hyunmi Doh , Myoungjin Park , Jae Hong Park , Junwoo Park
CPC分类号： H01L25/167 , H01L24/32 , H01L24/83 , H01L33/44 , H01L2224/32137 , H01L2224/80143 , H01L2224/83085 , H01L2224/83896 , H01L2924/12041
摘要： Provided is a light emitting element according to embodiments which includes a body including a semiconductor layer and an active layer, and a ligand including a head portion bonded to a surface of the body, an end portion spaced apart from the body, and having a positive or a negative charge, and a chain portion connecting the head portion and the end portion.
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公开(公告)号：US20230180504A1
公开(公告)日：2023-06-08
申请号：US18070310
申请日：2022-11-28
发明人： Yunhyuk Ko , Changhee Lee , Yunku Jung , Changyeol Han
IPC分类号： H10K50/16 , H10K50/115 , H10K59/123
CPC分类号： H01L51/5072 , H01L51/502 , H01L27/3248
摘要： 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.
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公开(公告)号：US20230045448A1
公开(公告)日：2023-02-09
申请号：US17853872
申请日：2022-06-29
发明人： Yunhyuk Ko , Dongryeol Whang , Changhee Lee , Kwangsup Lee , Prem PRABHAKARAN , Daeho Hwang
IPC分类号： H01L51/50 , C09K11/88 , C09K11/74 , C09K11/70 , C09K11/66 , C09K11/62 , C09K11/56 , C09D11/033 , C09D11/03
摘要： 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.
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公开(公告)号：US20230038085A1
公开(公告)日：2023-02-09
申请号：US17849542
申请日：2022-06-24
发明人： Hyunmi Doh , Changhee Lee , Jingoo Kang , Sehun Kim , Yonghwi Kim , Jonghoon Kim , Seunguk Noh , Myoungjin Park , Yunku Jung
摘要： 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.
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