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公开(公告)号：US20240124771A1
公开(公告)日：2024-04-18
申请号：US18464970
申请日：2023-09-11
Applicant: Samsung Display Co., LTD.
CPC classification number: C09K11/621 , C09K11/02 , C09K11/06
Abstract: A quantum dot according to one or more embodiments includes: a core; a shell around the core; and a first passivation layer and a second passivation layer around the shell, wherein the first passivation layer includes a metal oxide, the second passivation layer includes a compound represented by K′(OA′)n, and K′ is one selected from among In, Zn, Ga, Mg, while n is 2 or 3. A′ is selected from among Ac, H, i-Pr (isopropyl), and Bu (butyl).
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公开(公告)号：US20240276868A1
公开(公告)日：2024-08-15
申请号：US18532579
申请日：2023-12-07
Applicant: Samsung Display Co., LTD.
Inventor： Jungho JO , CHUL SOON PARK , YUNKU JUNG , WON-JUN PARK , JONGWOO SHIN
IPC: H10K85/30 , H10K50/115 , H10K71/13
CPC classification number: H10K85/381 , H10K50/115 , H10K71/135 , H10K50/15 , H10K50/16
Abstract: A light emitting element includes a first electrode, an electron transport region, an emission layer, a hole transport region, and a second electrode, stacked in order. At least one among the electron transport region and the hole transport region includes a metal nanoparticle. The metal nanoparticle includes a core including a metal oxide and a ligand bonded to the core and including at least one among Se and Te. The ligand is derived from a first compound represented by Formula 1 or an ion represented by Formula 2 as described. Accordingly, the light emitting element may be manufactured by an inkjet printing method.
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3.发明申请公开(公告)号：US20250063885A1
公开(公告)日：2025-02-20
申请号：US18750963
申请日：2024-06-21
Applicant: Samsung Display Co., LTD.
Inventor： YUNKU JUNG , SOOHO LEE , Jungho JO , Chang Yeol HAN , YUNHYUK KO , SEHUN KIM
IPC: H10K50/16 , C09D11/037 , C09K11/06 , H10K50/115 , H10K50/165 , H10K85/30
Abstract: A light emitting element of an embodiment includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region, the electron transport region includes a nanoparticle including a nanoparticle core and a ligand, the nanoparticle core includes a core compound represented by Formula 1, and the ligand is bonded to the surface of the nanoparticle core and represented by Formula 2 or Formula 3.
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4.发明公开公开(公告)号：US20240324271A1
公开(公告)日：2024-09-26
申请号：US18437361
申请日：2024-02-09
Applicant: Samsung Display Co., LTD.
Inventor： Yun Ku JUNG , YUNHYUK KO , WON-JUN PARK , CHUL SOON PARK , JONGWOO SHIN , Jungho JO
CPC classification number: H10K50/166 , C09D11/52 , H10K50/11 , H10K71/15
Abstract: An ink composition includes a first solvent, a second solvent, a first electron transport material and a second electron transport material. The first electron transport material includes a metal oxide, and a ligand disposed on a surface of the metal oxide. The second electron transport material includes a metal oxide, and a ligand positioned on a surface of the metal oxide. The ligand of the first electron transport material and the ligand of the second electron transport material are different from each other. A difference in a length of the ligand of the first electron transport material and a length of the ligand of the second electron transport material is three or more atoms.
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公开(公告)号：US20250056958A1
公开(公告)日：2025-02-13
申请号：US18632190
申请日：2024-04-10
Applicant: Samsung Display Co., LTD.
Inventor： Yun Ku JUNG , Yunhyuk KO , Won-Jun PARK , Chul Soon PARK , Seonhui BAEK , Sooho LEE , Jungho JO , Chang Yeol HAN
IPC: H10K50/115 , B82Y40/00 , C09K11/02 , C09K11/88
Abstract: A quantum dot complex according to an embodiment comprises a quantum dot; and a ligand bound to a surface of the quantum dot, wherein the surface of the quantum dot is provided with a plurality of coupling parts to which the ligand is bound; wherein the plurality of coupling parts include a first coupling part and a second coupling part. The ligand includes a first ligand bound to the first coupling part and a second ligand bound to the second coupling part, wherein the second ligand includes a halogen element. The halogen element is contained in an amount of 1 at % to 12 at % to the total content of the quantum dot complex.
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Patent Agency Ranking
公开(公告)号：US20250051177A1
公开(公告)日：2025-02-13
申请号：US18652634
申请日：2024-05-01
Applicant: Samsung Display Co., Ltd.
Inventor： Jungho JO , SEHUN KIM , WON-JUN PARK , CHUL SOON PARK , JONGWOO SHIN , Chungman YU
IPC: C01G19/02 , H10K50/115 , H10K50/16 , H10K85/40
Abstract: An electronic transport composition including inorganic particles (each) represented by Formula 1, and a solvent represented by Formula 2, and when the electron transport composition is applied to a light-emitting element, luminous efficiency characteristics and element lifespan characteristics may be improved. Zn1-xMxO Formula 1 R1—O—(R2—O)n—R3 Formula 2
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公开(公告)号：US20210301202A1
公开(公告)日：2021-09-30
申请号：US17203538
申请日：2021-03-16
Inventor： Yunhyuk KO , Heesun YANG , Changhee LEE , Kyunghye KIM , Sungwoon KIM , Jungho JO
IPC: C09K11/62 , H01L51/50 , C09K11/70 , C09K11/08 , C09K11/56 , H05B33/14 , C01G9/08 , C01B19/04 , C01G15/00
Abstract: Provided are a quantum dot, a method of preparing the quantum dot, an optical member including the quantum dot, and an electronic device including the quantum dot. The quantum dot includes a core including indium (In), A1, and A2; and a shell covering the core. A1 is a Group V element, A2 is a Group III element other than indium, and the core includes a first region, and a second region covering the first region. The first region does not include A2, and includes indium and A1, and the second region includes indium, A1, and A2, and indium and A2 are alloyed with each other in the second region.
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8.发明申请公开(公告)号：US20250075124A1
公开(公告)日：2025-03-06
申请号：US18796960
申请日：2024-08-07
Applicant: Samsung Display Co., Ltd.
Inventor： Jungho JO , SANGYEOP LEE , SOOHO LEE , YUNKU JUNG , Chang Yeol HAN
IPC: C09K11/66 , B82Y30/00 , C09D11/38 , C09K11/02 , H10K50/115 , H10K50/16 , H10K50/17 , H10K102/00
Abstract: A light-emitting element includes a first electrode, a functional layer disposed on the first electrode, and a second electrode disposed on the functional layer, wherein the functional layer includes a nanoparticle, the nanoparticle includes a core and a ligand, the core includes at least one of a first core compound represented by Formula 1 below, a second core compound represented by Formula 2 below, or a third core compound represented by Formula 3 below, and thus the light-emitting element has improved lifespan and efficiency. Sn4+1-xSn2+xO2-x Formula 1 Sn4+1-yCu+2yO2-y Formula 2 Sn4+1-zNi2+zO2-z Formula 3
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公开(公告)号：US20240268218A1
公开(公告)日：2024-08-08
申请号：US18516015
申请日：2023-11-21
Applicant: Samsung Display Co., Ltd.
Inventor： SOOHO LEE , Jungho JO , YUNHYUK KO , Yun Ku JUNG
CPC classification number: H10K85/381 , C07F3/06 , H10K50/16
Abstract: A metal oxide nanoparticle includes a compound represented by Chemical Formula 1 and an alkyl amine ligand having 8 to 18 carbon atoms positioned on a surface of the compound.
In Chemical Formula 1, M may be one selected from among Ca, Zr, Al, Li, Mg, Ni, Y, W, Co, and Ga.-
10.发明公开公开(公告)号：US20240052239A1
公开(公告)日：2024-02-15
申请号：US18344540
申请日：2023-06-29
Applicant: Samsung Display Co., Ltd.
Inventor： Jungho JO , Yunhyuk KO , Yunku JUNG , Changyeol HAN
IPC: C09K11/62 , H10K50/115 , C09K11/58 , C09K11/02
CPC classification number: C09K11/621 , H10K50/115 , C09K11/586 , C09K11/02 , H10K2102/331
Abstract: A quantum dot may include a core including indium (In) and A1, and a first shell covering the core, wherein A1 may be a group III element other than indium, a ratio of a radius of the core to a thickness of the first shell may be in a range of about 1:1 to about 9:1, and the quantum dot may emit blue light having a maximum emission wavelength in a range of about 440 nanometers (nm) to about 480 nm.
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