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公开(公告)号：US11866627B2
公开(公告)日：2024-01-09
申请号：US17192388
申请日：2021-03-04
发明人： Changhee Lee , Dukki Kim , Hyojin Ko , Sehun Kim , Jaehoon Kim , Hyunmi Doh , Yunku Jung , Jaekook Ha
IPC分类号： C09K11/06 , C07C309/30 , C07C53/00 , C07C63/08 , C07F9/54 , C07C43/10 , C07C211/09 , C07C309/04 , H10K85/60 , H10K50/115 , H10K71/00 , H10K71/15
CPC分类号： C09K11/06 , C07C43/10 , C07C53/00 , C07C63/08 , C07C211/09 , C07C309/04 , C07C309/30 , C07F9/5407 , C07F9/5442 , H10K85/60 , C09K2211/10 , C09K2211/1007 , H10K50/115 , H10K71/00 , H10K71/15
摘要： A quantum dot composition includes a quantum dot, and a ligand bonded to a surface of the quantum dot, wherein the ligand includes a head portion bonded to the surface of the quantum dot and containing a polar solvent dissociative functional group, and a tail portion connected to the head portion. A quantum dot composition according to an embodiment is used to form an emission layer of a light emitting element to enhance luminous efficiency of the light emitting element including an emission layer formed through the quantum dot composition.
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2.发明授权公开(公告)号：US11737294B2
公开(公告)日：2023-08-22
申请号：US16892532
申请日：2020-06-04
发明人： Yunku Jung , Hyunmi Doh , Jae Hong Park , Dongwoo Shin , Jaekook Ha , Sungwoon Kim , Minki Nam
IPC分类号： H10K50/115 , C09K11/08 , C09K11/02 , H10K30/80 , H10K59/35 , H10K59/38 , H10K85/60 , H10K50/15 , H10K50/16 , H10K71/00
CPC分类号： H10K50/115 , C09K11/025 , C09K11/08 , H10K30/865 , H10K59/35 , H10K59/38 , H10K85/654 , H10K85/6572 , H10K50/15 , H10K50/16 , H10K71/00
摘要： A quantum dot composition includes a quantum dot, and a ligand bonded to a surface of the quantum dot, wherein the ligand includes a body part including a charge transport moiety, and a head part bonded to the surface of the quantum dot. The quantum dot composition according may be applied to a light emitting diode and a display device to provide increased luminous efficiency and device life of the light emitting diode and the display device.
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3.发明申请公开(公告)号：US20220204799A1
公开(公告)日：2022-06-30
申请号：US17534335
申请日：2021-11-23
发明人： Sungwoon Kim , Changhee Lee , Hyunmi Doh , Sehun Kim
摘要： An ink composition includes: a solvent; and an electron transporting material substantially dispersed in the solvent and of Formula 1, wherein the ink composition has an Ohnesorge number of about 0.1 to about 0.2: [Ar1]b1-[(L1)a1-R1]c1 Formula 1 wherein the variables are defined herein.
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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：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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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：US11917905B2
公开(公告)日：2024-02-27
申请号：US16997770
申请日：2020-08-19
发明人： Hyunmi Doh , Jaehoon Kim , Jaehong Park
CPC分类号： H10K85/633 , C09K11/70 , H10K85/636 , H10K50/115 , H10K50/15 , H10K50/17 , H10K85/615 , H10K85/6572
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 includes i) a hole transport region between the first electrode and the emission layer, and ii) an electron transport region between the emission layer and the second electrode, and the hole transport region includes a Group 11 metal chalcogenide compound including a Group 11 metal and a chalcogenide element with the proviso that oxygen is excluded from the chalcogenide element.
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公开(公告)号：US11895856B2
公开(公告)日：2024-02-06
申请号：US16895590
申请日：2020-06-08
发明人： Yunku Jung , Minki Nam , Hyunmi Doh , Yunhyuk Ko , Sungwoon Kim , Jaehoon Kim , Myoungjin Park , Jae Hong Park , Junwoo Park
IPC分类号： C09K11/06 , C09K11/02 , C09K11/54 , C09K11/56 , H10K50/115 , H10K50/00 , H10K50/12 , H10K50/844 , H10K50/86 , H10K59/38 , H10K71/00 , H10K85/30 , H10K85/60 , H10K102/10 , H10K102/00
CPC分类号： H10K50/115 , C09K11/06 , H10K50/00 , H10K50/12 , H10K50/844 , H10K50/865 , H10K59/38 , H10K71/00 , H10K85/30 , H10K85/631 , C09K2211/18 , H10K2102/103 , H10K2102/351
摘要： A quantum dot composition includes a quantum dot, a ligand to bind to a surface of the quantum dot, an additive having an amine group, and a precursor comprising an organometallic compound, the composition forming a modified quantum dot having a reformed surface characteristic. A light emitting element including the modified quantum dot may have improved lifespan, luminous efficiency, and material stability.
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9.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：US12129416B2
公开(公告)日：2024-10-29
申请号：US17219653
申请日：2021-03-31
发明人： Changhee Lee , Yunku Jung , Hyunmi Doh , Hyojin Ko , Dukki Kim , Sehun Kim , Jaehoon Kim , Jaekook Ha
IPC分类号： C09K11/06 , B82Y20/00 , B82Y30/00 , B82Y40/00 , H10K50/115 , H10K102/00
CPC分类号： C09K11/06 , H10K50/115 , B82Y20/00 , B82Y30/00 , B82Y40/00 , C09K2211/10 , H10K2102/00
摘要： A quantum dot composition includes a quantum dot having a surface to which a ligand is bonded, and a photoacid generator. The quantum dot composition according to one or more embodiments 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.
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