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公开(公告)号：US20240317599A1
公开(公告)日：2024-09-26
申请号：US18512784
申请日：2023-11-17
Applicant: Samsung Display Co., Ltd.
Inventor： Jungho Jo , Yunku Jung , Chulsoon Park
IPC: C01G9/02 , B82Y20/00 , B82Y30/00 , C09D11/30 , C09K11/54 , H10K50/115 , H10K50/15 , H10K50/16 , H10K85/30
CPC classification number: C01G9/02 , B82Y20/00 , B82Y30/00 , C09D11/30 , C09K11/54 , H10K50/115 , H10K50/15 , H10K50/16 , H10K85/381
Abstract: A nanocomposite including a metal oxide nanoparticle and a hydrophilic ligand is provided. The nanocomposite is a component of an ink composition, a light-emitting device, an electronic apparatus, and electronic equipment.
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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
Applicant: Samsung Display Co., Ltd.
Inventor： Changhee Lee , Sehun Kim , Hyojin Ko , Dukki Kim , Jaehoon Kim , Hyunmi Doh , Yunku Jung , Jaekook Ha
IPC: C09K11/08 , C09K11/06 , B82Y20/00 , B82Y30/00 , B82Y40/00 , H10K50/115 , H10K50/15 , H10K50/16 , H10K102/00
CPC classification number: C09K11/08 , C09K11/06 , B82Y20/00 , B82Y30/00 , B82Y40/00 , H10K50/115 , H10K50/15 , H10K50/16 , H10K2102/00
Abstract: 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：US11895856B2
公开(公告)日：2024-02-06
申请号：US16895590
申请日：2020-06-08
Applicant: Samsung Display Co., Ltd.
Inventor： Yunku Jung , Minki Nam , Hyunmi Doh , Yunhyuk Ko , Sungwoon Kim , Jaehoon Kim , Myoungjin Park , Jae Hong Park , Junwoo Park
IPC: 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 classification number: 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
Abstract: 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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公开(公告)号：US20230371296A1
公开(公告)日：2023-11-16
申请号：US18191783
申请日：2023-03-28
Applicant: Samsung Display Co., Ltd.
Inventor： Yunku Jung , Yohan Suh , Chulsoon Park
IPC: H10K50/115 , C09K11/70 , C09K11/88 , C09K11/56
CPC classification number: H10K50/115 , C09K11/70 , C09K11/883 , C09K11/565 , B82Y40/00
Abstract: A quantum dot composition includes a first quantum dot and a second quantum dot, wherein the first quantum dot includes a first core and a first shell surrounding at least a portion of the first core, the first shell includes a first metal and a first chalcogenide, the second quantum dot includes a second core and a second shell surrounding at least a portion of the second core, the second shell includes a second metal and a second chalcogenide, and a first molar ratio of the first metal to the first chalcogenide in the first quantum dot is different from a second molar ratio of the second metal to the second chalcogenide in the second quantum dot.
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公开(公告)号：US20230227722A1
公开(公告)日：2023-07-20
申请号：US18155972
申请日：2023-01-18
Applicant: Samsung Display Co., Ltd.
Inventor： Yunku Jung , Yunhyuk Ko , Yohan Suh , Changyeol Han
IPC: C09K11/88 , C09K11/08 , C09K11/02 , H10K50/115
CPC classification number: C09K11/883 , C09K11/0883 , C09K11/025 , H10K50/115 , B82Y20/00
Abstract: A quantum dot composition, including a first quantum dot and a second quantum dot, wherein a valence band maximum energy level of the first quantum dot is different from a valence band maximum energy level of the second quantum dot, as determined by ambient photoelectron spectroscopy, and an energy band gap of the first quantum dot is identical to an energy band gap of the second quantum dot, as determined by ultraviolet-visible spectroscopy.
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Patent Agency Ranking
16.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
Applicant: Samsung Display Co., Ltd.
Inventor： Changhee Lee , Sehun Kim , Hyojin Ko , Dukki Kim , Jaehoon Kim , Hyunmi Doh , Yunku Jung , Jaekook Ha
CPC classification number: C09K11/025 , H01L51/502 , H01L51/56 , B82Y20/00 , B82Y40/00
Abstract: 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：US20220315441A1
公开(公告)日：2022-10-06
申请号：US17705988
申请日：2022-03-28
Applicant: Samsung Display Co., Ltd
Inventor： Sehun KIM , Changhee LEE , Seunguk NOH , Jingoo KANG , Yonghwi KIM , Jonghoon KIM , Hyunmi DOH , Myoungjin PARK , Yunku Jung
Abstract: A metal oxide composition includes: a solvent; a metal oxide; and a hydrogen cation source that includes a compound of Formula 1, or that includes a compound of Formula 2, or that includes any combination thereof: wherein, in Formulae 1 and 2, the variables are as described herein.
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18.发明申请公开(公告)号：US20250092310A1
公开(公告)日：2025-03-20
申请号：US18828970
申请日：2024-09-09
Applicant: Samsung Display Co., Ltd.
Inventor： Yunku Jung , Sooho Lee , Heunggyu Kim , Changyeol Han
Abstract: A quantum dot, and an ink composition, a light-emitting device, an optical member, and an apparatus, each including the quantum dot are provided. The quantum dot includes a nanoparticle and a first ligand and a second ligand which are disposed on the surface of the nanoparticle, wherein the first ligand is represented by Formula 1, and the second ligand includes at least one selected from among an amine group, a phosphine group, an imidazole group, and a pyridine group, wherein each of the first ligand and the second ligand does not include a thiol group.
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19.发明授权公开(公告)号：US11955468B2
公开(公告)日：2024-04-09
申请号：US16932591
申请日：2020-07-17
Applicant: Samsung Display Co., Ltd.
Inventor： Yunku Jung , Sungwoon Kim , Changhee Lee , Jaekook Ha , Yunhyuk Ko , Jaehoon Kim , Minki Nam , Hyunmi Doh , Myoungjin Park , Jae Hong Park , Junwoo Park
CPC classification number: H01L25/167 , H01L24/32 , H01L24/83 , H01L33/44 , H01L2224/32137 , H01L2224/80143 , H01L2224/83085 , H01L2224/83896 , H01L2924/12041
Abstract: 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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20.发明授权公开(公告)号：US11802242B2
公开(公告)日：2023-10-31
申请号：US17334563
申请日：2021-05-28
Applicant: Samsung Display Co., Ltd.
Inventor： Yunku Jung , Jaehong Park
IPC: C09K19/12 , G02F1/13357 , G02F1/017 , C09K11/02 , H10K50/85 , B82Y20/00 , B82Y30/00 , B82Y40/00 , H10K101/30 , H10K102/00
CPC classification number: C09K19/12 , C09K11/02 , G02F1/017 , G02F1/1336 , H10K50/85 , B82Y20/00 , B82Y30/00 , B82Y40/00 , C09K2019/122 , H10K2101/30 , H10K2102/331
Abstract: A quantum rod includes a nanoparticle, and at least one ligand linked to the surface of the nanoparticle and represented by Formula 1.
R1-(L1)b1-(A1)a1-(L2)b2-(A2)a2-(L3)b3-T1. Formula 1
A light-emitting device, an optical member, and an apparatus, each includes the quantum rod.
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