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公开(公告)号：US20240172464A1
公开(公告)日：2024-05-23
申请号：US18404975
申请日：2024-01-05
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Nayoun WON , Mi Hye LIM , Tae Gon KIM , Taekhoon KIM , Shang Hyeun PARK , Shin Ae JUN
IPC: H10K50/115 , C09K11/02 , C09K11/56 , C09K11/70 , C09K11/88
CPC classification number: H10K50/115 , C09K11/02 , C09K11/565 , C09K11/703 , C09K11/883
Abstract: A cadmium-free, core shell quantum dot, a quantum dot polymer composite, and electronic devices including the quantum dot polymer composite. The core shell quantum dot has an extinction coefficient per gram of greater than or equal to 0.3, an ultraviolet-visible absorption spectrum curve that has a positive differential coefficient value at 450 nm, wherein the core shell quantum dot includes a semiconductor nanocrystal core including indium and phosphorus, and optionally zinc, and a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the shell including zinc, selenium, and sulfur, wherein the core shell quantum dot has a quantum efficiency of greater than or equal to about 80%, and is configured to emit green light upon excitation.
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2.发明公开公开(公告)号：US20240099045A1
公开(公告)日：2024-03-21
申请号：US18368010
申请日：2023-09-13
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Heejae LEE , Tae Ho KIM , Jun-Mo YOO , Ilyoung LEE , Shin Ae JUN , Dae Young CHUNG , Moon Gyu HAN
IPC: H10K50/115 , H10K50/828 , H10K71/12
CPC classification number: H10K50/115 , H10K50/828 , H10K71/12 , H10K2102/351
Abstract: Provided are an electroluminescent device, a method of manufacturing the same, and a display device including the same, the electroluminescent device including a first electron auxiliary layer, a first light emitting layer, and a first electrode disposed on a first surface of a transparent electrode; and a second electron auxiliary layer, a second light emitting layer, and a second electrode disposed on a second surface of the transparent electrode, wherein the first electron auxiliary layer and the second electron auxiliary layer each include a plurality of zinc oxide nanoparticles, a ratio (t1/t0) of a thickness (t1) of the first electron auxiliary layer to a thickness (t0) of the transparent electrode and a ratio (t2/t0) of a thickness (t2) of the second electron auxiliary layer to the thickness (t0) of the transparent electrode are each in the range of about 0.1 to about 4.0.
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公开(公告)号：US20230121293A1
公开(公告)日：2023-04-20
申请号：US18074570
申请日：2022-12-05
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hyeyeon YANG , Garam PARK , Shin Ae JUN , Tae Gon KIM , Taekhoon KIM
Abstract: A quantum dot including a multi-component core including a first semiconductor nanocrystal including indium (In), zinc (Zn), and phosphorus (P) and a second semiconductor nanocrystal disposed on the first semiconductor nanocrystal, the second semiconductor nanocrystal including gallium (Ga) and phosphorus (P) wherein the quantum dot is cadmium-free and emits green light, a mole ratio (P:In) of phosphorus relative to indium is greater than or equal to about 0.6:1 and less than or equal to about 1.0, and a mole ratio (P:(In+Ga)) of phosphorus relative to indium and gallium is greater than or equal to about 0.5:1 and less than or equal to about 0.8:1, a quantum dot-polymer composite pattern including the same, and a display device.
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公开(公告)号：US20230086635A1
公开(公告)日：2023-03-23
申请号：US18059075
申请日：2022-11-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Garam PARK , Eun Joo JANG , Yongwook KIM , Jihyun MIN , Hyo Sook JANG , Shin Ae JUN , Taekhoon KIM , Yuho WON
Abstract: A semiconductor nanocrystal particle including: a core including a first semiconductor material; and a shell disposed on the core, wherein the shell includes a second semiconductor material, wherein the shell is free of cadmium, wherein the shell has at least two branches and at least one valley portion connecting the at least two branches, and wherein the first semiconductor material is different from the second semiconductor material.
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公开(公告)号：US20220137286A1
公开(公告)日：2022-05-05
申请号：US17576895
申请日：2022-01-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Tae Hyung KIM , Eun Joo JANG , Shin Ae JUN , Hyun A KANG , Yongwook KIM , Na Youn WON , Hyo Sook JANG
IPC: F21V8/00 , G02F1/13357 , G02F1/1335
Abstract: A light source includes a light emitting element which emits light, and a light conversion layer which converts the light emitted from the light emitting element into white light and emits the white light, where the light conversion layer includes a resin and a quantum dot material mixed with the resin, and a red apex of a color region of the white light is positioned in a region of 0.65
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Patent Agency Ranking
公开(公告)号：US20220017818A1
公开(公告)日：2022-01-20
申请号：US17490552
申请日：2021-09-30
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yuho WON , Nayoun WON , Sungwoo HWANG , Eun Joo JANG , Soo Kyung KWON , Yong Wook KIM , Jihyun MIN , Garam PARK , Shang Hyeun PARK , Hyo Sook JANG , Shin Ae JUN , Yong Seok HAN
IPC: C09K11/08 , C08L57/10 , G02F1/13357 , H01L51/50 , H01L27/32 , C09K11/02 , C09K11/56 , C09K11/70 , C09K11/88 , H05B33/14
Abstract: A cadmium free quantum dot not including cadmium and including: a semiconductor nanocrystal core comprising indium and phosphorous, a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core and comprising zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell and comprising zinc and sulfur, a composition and composite including the same, and an electronic device.
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公开(公告)号：US20210167228A1
公开(公告)日：2021-06-03
申请号：US17171198
申请日：2021-02-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Shin Ae JUN , Eun Joo JANG , Soo Kyung KWON , Taek Hoon KIM , Won Joo LEE
IPC: H01L31/0296 , H01L31/0304 , H01L31/0352
Abstract: A nanocrystal including a core including a Group III element and a Group V element, and a monolayer shell on the surface of the core, the shell including a compound of the formula ZnSexS(1-x), wherein 0≤x≤1, and wherein an average mole ratio of Se:S in the monolayer shell ranges from about 2:1 to about 20:1.
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公开(公告)号：US20180269353A1
公开(公告)日：2018-09-20
申请号：US15981649
申请日：2018-05-16
Applicant: SAMSUNG ELECTRONICS CO., LTD. , Bilkent University
Inventor： Shin Ae JUN , Hilmi Volkan DEMIR , Eun Joo JANG , Burak GUZELTURK , Can URAN , Talha ERDEM , Kivanc GUNGOR
CPC classification number: H01L33/06 , B82Y20/00 , G02B5/3025 , G02B5/3058 , G02B6/0229 , H01L31/035209 , H01L51/502 , H01L51/5293 , H01L2251/5384
Abstract: An optical element includes a plurality of nanowires disposed in the form of an array and a light emitting material disposed on the nanowires, where the nanowires are longitudinally aligned in the array to linearly polarize at least a portion of light emitted from the light emitting material, and an electronic device includes the optical element.
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9.发明申请公开(公告)号：US20180179441A1
公开(公告)日：2018-06-28
申请号：US15855436
申请日：2017-12-27
Inventor： Young Seok PARK , Shang Hyeun PARK , Eun Joo JANG , Hyo Sook JANG , Shin Ae JUN , Dae Young CHUNG , Taekhoon KIM , Yuho WON
CPC classification number: C09K11/883 , B82Y30/00 , B82Y40/00 , C09K11/025 , G02B5/22 , G02B5/223 , H01L27/322 , H01L51/0035 , H01L51/0037 , H01L51/0039 , H01L51/502 , Y10S977/774 , Y10S977/818 , Y10S977/824 , Y10S977/892 , Y10S977/896 , Y10S977/95
Abstract: A process for preparing a quantum dot of a core-shell structure including obtaining a first mixture including first precursor including a first metal, a ligand compound, and a solvent; adding a second precursor and a particle including a first semiconductor nanocrystal to the first mixture to obtain a second mixture; and heating the second mixture up to a reaction temperature and performing a reaction between the first precursor and the second precursor to form a layer of a shell including a crystalline or amorphous material, during formation of the layer of the shell or after formation of the layer of the shell, wherein the process includes adding an organic solution including an ammonium fluorinated salt including a solid salt having a melting point of greater than or equal to about 110° C. to the second mixture.
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10.发明申请公开(公告)号：US20180105739A1
公开(公告)日：2018-04-19
申请号：US15787214
申请日：2017-10-18
Inventor： Tae Gon KIM , Ha Il KWON , Shin Ae JUN
IPC: C09K11/02 , C09K11/88 , C09D5/22 , G03F7/004 , G03F7/00 , G03F7/031 , G03F7/16 , G03F7/20 , G03F7/32 , G03F7/40 , H01L33/50 , G02F1/1335 , G02B5/20
CPC classification number: C09K11/025 , B82Y20/00 , B82Y40/00 , C08K3/00 , C09D5/22 , C09K11/883 , G02B5/201 , G02F1/133514 , G03F7/00 , G03F7/0007 , G03F7/0044 , G03F7/031 , G03F7/162 , G03F7/168 , G03F7/2002 , G03F7/322 , G03F7/40 , H01L31/0547 , H01L31/055 , H01L33/502 , H01L2933/0033 , H01L2933/0041 , Y10S977/774 , Y10S977/783 , Y10S977/818 , Y10S977/824 , Y10S977/897 , Y10S977/95
Abstract: A quantum dot-polymer composite film includes: a plurality of quantum dots, wherein a quantum dot of the plurality of quantum dots includes an organic ligand on a surface of a the quantum dot; a cured product of a photopolymerizable monomer including a carbon-carbon unsaturated bond; and a residue including a residue of a high-boiling point solvent, a residue of a polyvalent metal compound, or a combination thereof.
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