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21.发明授权公开(公告)号：US11730003B2
公开(公告)日：2023-08-15
申请号：US17560161
申请日：2021-12-22
Applicant: Samsung Display Co., Ltd.
Inventor： Choelmin Jang , Byunghyuk Kwon , Changhee Lee , Myungsoo Huh , Cheollae Roh , Jaehoon Kim , Jeong Hye Choi
IPC: H01L51/50 , H10K30/80 , C09K11/08 , H10K50/15 , H10K50/16 , H10K50/17 , H10K50/86 , H10K50/115 , H10K59/12 , H10K59/38 , H10K71/00 , B82Y20/00 , H10K102/00
CPC classification number: H10K30/865 , C09K11/08 , H10K50/115 , H10K50/15 , H10K50/16 , H10K50/17 , H10K50/171 , H10K50/86 , H10K50/865 , H10K59/12 , H10K59/38 , H10K71/00 , B82Y20/00 , H10K2102/00 , H10K2102/351
Abstract: A light emitting diode according to embodiments of the present disclosure includes a first electrode, a second electrode opposite the first electrode, an emission layer between the first electrode and the second electrode, the emission layer including a quantum dot, a first charge transfer layer between the first electrode and the emission layer, a second charge transfer layer between the second electrode and the emission layer, and an insulating layer in at least one position between the first charge transfer layer and the emission layer, and/or between the second charge transfer layer and the emission layer, wherein the insulating layer includes an inorganic material. The light emitting diode and a display device including the same show improved life characteristics and emission efficiency properties.
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22.发明授权公开(公告)号：US11649402B2
公开(公告)日：2023-05-16
申请号：US17034861
申请日：2020-09-28
Applicant: Samsung Display Co., Ltd. , Hannam University Institute for Industry-Academia Cooperation
Inventor： Yunhyuk Ko , Kwangsup Lee , Prabhakaran Prem , Changhee Lee , Gyeongju Kim , Sinil Choi
CPC classification number: C09K11/88 , C09K11/54 , H01L33/502 , H01L51/5036 , B82Y20/00 , B82Y40/00
Abstract: A method of preparing a quantum dot, a quantum dot prepared by the method, an optical member including the quantum dot, and an apparatus including the quantum dot. The quantum dot may include: a core including a III-V compound; a first shell surrounding the core and including ZnSe; a second shell surrounding the first shell and including ZnSe1-xSx, wherein x may be a real number greater than 0 and smaller than 1; and a third shell surrounding the second shell and including ZnS. The method may include: forming the first shell from a first material including zinc and a second material including selenium in a solution; forming the second shell by adding to the solution a third material including zinc and a fourth material including selenium and sulfur; and forming the third shell by adding to the solution a fifth material including zinc.
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23.发明申请公开(公告)号：US20220115617A1
公开(公告)日：2022-04-14
申请号：US17560161
申请日：2021-12-22
Applicant: Samsung Display Co., Ltd.
Inventor： Choelmin Jang , Byunghyuk Kwon , Changhee Lee , Myungsoo Huh , Cheollae Roh , Jaehoon Kim , Jeong Hye Choi
Abstract: A light emitting diode according to embodiments of the present disclosure includes a first electrode, a second electrode opposite the first electrode, an emission layer between the first electrode and the second electrode, the emission layer including a quantum dot, a first charge transfer layer between the first electrode and the emission layer, a second charge transfer layer between the second electrode and the emission layer, and an insulating layer in at least one position between the first charge transfer layer and the emission layer, and/or between the second charge transfer layer and the emission layer, wherein the insulating layer includes an inorganic material. The light emitting diode and a display device including the same show improved life characteristics and emission efficiency properties.
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24.发明授权公开(公告)号：US11239438B2
公开(公告)日：2022-02-01
申请号：US16714389
申请日：2019-12-13
Applicant: Samsung Display Co., Ltd.
Inventor： Choelmin Jang , Byunghyuk Kwon , Changhee Lee , Myungsoo Huh , Cheollae Roh , Jaehoon Kim , Jeong Hye Choi
Abstract: A light emitting diode according to embodiments of the present disclosure includes a first electrode, a second electrode opposite the first electrode, an emission layer between the first electrode and the second electrode, the emission layer including a quantum dot, a first charge transfer layer between the first electrode and the emission layer, a second charge transfer layer between the second electrode and the emission layer, and an insulating layer in at least one position between the first charge transfer layer and the emission layer, and/or between the second charge transfer layer and the emission layer, wherein the insulating layer includes an inorganic material. The light emitting diode and a display device including the same show improved life characteristics and emission efficiency properties.
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公开(公告)号：US12258504B2
公开(公告)日：2025-03-25
申请号：US18407326
申请日：2024-01-08
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Changhee Lee , Dukki Kim , Hyojin Ko , Sehun Kim , Jaehoon Kim , Hyunmi Doh , Yunku Jung , Jaekook Ha
IPC: C09K11/06 , C07C43/10 , C07C53/00 , C07C63/08 , C07C211/09 , C07C309/04 , C07C309/30 , C07F9/54 , H10K50/115 , H10K71/00 , H10K71/15 , H10K85/60
Abstract: 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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Patent Agency Ranking
公开(公告)号：US12129416B2
公开(公告)日：2024-10-29
申请号：US17219653
申请日：2021-03-31
Applicant: Samsung Display Co., Ltd.
Inventor： Changhee Lee , Yunku Jung , Hyunmi Doh , Hyojin Ko , Dukki Kim , Sehun Kim , Jaehoon Kim , Jaekook Ha
IPC: C09K11/06 , B82Y20/00 , B82Y30/00 , B82Y40/00 , H10K50/115 , H10K102/00
CPC classification number: C09K11/06 , H10K50/115 , B82Y20/00 , B82Y30/00 , B82Y40/00 , C09K2211/10 , H10K2102/00
Abstract: 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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公开(公告)号：US11917845B2
公开(公告)日：2024-02-27
申请号：US17336011
申请日：2021-06-01
Applicant: Samsung Display Co., Ltd.
Inventor： Sooho Lee , Changhee Lee , Hyunmi Doh
IPC: H10K50/16 , C09K11/02 , C09K11/54 , C09K11/56 , C09K11/55 , C09K11/06 , H10K50/115 , H10K50/828 , H10K71/00 , H10K71/15 , H10K71/13 , H10K102/00
CPC classification number: H10K50/16 , C09K11/02 , C09K11/06 , C09K11/54 , C09K11/55 , C09K11/565 , H10K50/115 , H10K50/828 , H10K71/00 , H10K71/135 , H10K71/15 , H10K2102/331
Abstract: Provided are a light-emitting device, an electronic apparatus including the same, and a method of manufacturing the light-emitting device, wherein 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 includes an emission layer and an electron transport layer, the electron transport layer is between the emission layer and the second electrode, and the electron transport layer includes an electron transport particle, the electron transport particle includes a core and a shell covering the core, the core includes an oxide, a chalcogenide, or any combination thereof, and the shell includes a chalcogenide, the chalcogenide of the core being the same as or different from the chalcogenide of the shell.
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公开(公告)号：US11910703B2
公开(公告)日：2024-02-20
申请号：US17152640
申请日：2021-01-19
Applicant: Samsung Display Co., Ltd.
Inventor： Changhee Lee , Yunku Jung , Hyojin Ko , Dukki Kim , Sehun Kim , Jaehoon Kim , Hyunmi Doh , Jaekook Ha
IPC: H01L51/00 , H10K85/30 , C09K11/06 , H10K50/115 , H10K71/00
CPC classification number: H10K85/361 , C09K11/06 , H10K85/381 , C09K2211/10 , C09K2211/188 , H10K50/115 , H10K71/00
Abstract: 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, a connecting portion connected to the head portion and including a metal, and a tail portion coordinated to the metal of the connecting portion. The quantum dot composition according to the present embodiments is used to form an emission layer of a light emitting element, and may thus increase service life and luminous efficiency of the light emitting element including the emission layer formed using the quantum dot composition.
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公开(公告)号：US11870001B2
公开(公告)日：2024-01-09
申请号：US17443402
申请日：2021-07-26
Inventor： Sooho Lee , Minki Nam , Sungwoon Kim , Jeongwoo Park , Wanki Bae , Changhee Lee , Byeongguk Jeong
IPC: H01L31/12 , H01L31/0384 , H01L31/103 , H01L31/18 , H10K50/115 , H10K59/60 , H10K71/00 , B82Y40/00 , B82Y20/00
CPC classification number: H01L31/125 , H01L31/03845 , H01L31/1032 , H01L31/1035 , H01L31/184 , H01L31/1828 , H10K50/115 , H10K59/60 , H10K71/00 , B82Y20/00 , B82Y40/00
Abstract: An electronic device includes a semiconductor nanoparticle, and a method of manufacturing the semiconductor nanoparticle is additionally provided. The semiconductor nanoparticle includes: a core including a first element; and a shell covering at least a portion of a surface of the core and including a second element and a third element, wherein the first element, the second element, and the third element are different from each other, and the first element and the second element are chemically bonded to each other on the at least a portion of the surface of the core.
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公开(公告)号：US11844274B2
公开(公告)日：2023-12-12
申请号：US16721613
申请日：2019-12-19
Inventor： SooYoung Park , Sehun Kim , JiEon Kwon , Hyojeong Kim , ChiHyun Ryoo , Changhee Lee , Hyein Jeong , Jongseok Han
CPC classification number: H10K85/6572 , H10K85/631 , H10K50/11
Abstract: An organic electroluminescence device of an embodiment includes oppositely disposed first electrode and second electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one among the organic layers includes a compound represented by Formula 1 below. Improved emission efficiency and color purity properties may be shown.
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