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1.发明公开公开(公告)号：US20230193131A1
公开(公告)日：2023-06-22
申请号：US18108708
申请日：2023-02-13
Applicant: Samsung Display Co., Ltd.
Inventor： Nayoun WON , Garam PARK , Shin Ae JUN , Tae Gon KIM , Taekhoon KIM , Shang Hyeun PARK , Mi Hye LIM
IPC: C09K11/88 , C09D5/22 , C09D4/06 , C09D135/02 , C09D7/45 , C09D7/65 , C09K11/02 , C09K11/08 , B82Y40/00 , B82Y20/00
CPC classification number: C09K11/883 , C09D5/22 , C09D4/06 , C09D135/02 , C09D7/45 , C09D7/65 , C09K11/02 , C09K11/0883 , B82Y40/00 , B82Y20/00 , H10K59/38 , H10K50/115
Abstract: A quantum dot including a core including a semiconductor nanocrystal including a Group III-V compound; and a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc, selenium, and optionally sulfur, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc, sulfur, and optionally selenium, wherein the quantum dot does not include cadmium, an emission peak wavelength of the quantum dot is in a range of about 500 nanometers (nm) to about 550 nm, and an ultraviolet-visible absorption spectrum of the quantum dot includes a first exciton absorption peak and a second exciton absorption peak, a composition including the same, a composite, and an electronic device.
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2.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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公开(公告)号：US20200283680A1
公开(公告)日：2020-09-10
申请号：US16883989
申请日：2020-05-26
Inventor： Shin Ae JUN , Taekhoon KIM , Garam PARK , Yong Seok HAN , Eun Joo JANG , Hyo Sook JANG , Tae Won JEONG , Shang Hyeun PARK
IPC: C09K11/02 , C09K11/88 , C09K11/70 , C08K3/32 , C08K3/30 , G02F1/1335 , G02F1/13357
Abstract: A quantum dot, including a core including a first semiconductor material that includes indium; and a shell including a second semiconductor material, and disposed on the core, wherein the first semiconductor material and the second semiconductor material are different, wherein the shell has at least two branch portions and a valley portion connecting the at least two branch portions, at least one of the at least two branch portions comprises Zn, Se, and S, and a content of sulfur in the at least one branch portion increases in a direction away from the core.
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公开(公告)号：US20210102084A1
公开(公告)日：2021-04-08
申请号：US17065939
申请日：2020-10-08
Applicant: Samsung Display Co., Ltd.
Inventor： Hyeyeon YANG , Shang Hyeun PARK , Shin Ae JUN
Abstract: An ink composition, including a quantum dot; a metal catalyst; an aromatic halide compound; an ene compound including at least one C—H moiety and a carbon-carbon unsaturated bond; and optionally, a metal oxide particle, wherein the metal catalyst is a metal salt, a metal coordination complex, or a combination thereof, wherein the metal catalyst comprises a metal that is palladium, nickel, ruthenium, rhodium, iridium, iron, cobalt, chromium, copper, platinum, silver, gold, or a combination thereof.
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公开(公告)号：US20210009899A1
公开(公告)日：2021-01-14
申请号：US16918316
申请日：2020-07-01
Applicant: Samsung Display Co., Ltd.
Inventor： Nayoun WON , Garam PARK , Shin Ae JUN , Tae Gon KIM , Taekhoon KIM , Shang Hyeun PARK , Mi Hye LIM
Abstract: A quantum dot including a core including a semiconductor nanocrystal including a Group III-V compound; and a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc, selenium, and optionally sulfur, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc, sulfur, and optionally selenium, wherein the quantum dot does not include cadmium, an emission peak wavelength of the quantum dot is in a range of about 500 nanometers (nm) to about 550 nm, and an ultraviolet-visible absorption spectrum of the quantum dot includes a first exciton absorption peak and a second exciton absorption peak, a composition including the same, a composite, and an electronic device.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20200369955A1
公开(公告)日：2020-11-26
申请号：US16881697
申请日：2020-05-22
Applicant: Samsung Display Co., Ltd.
Inventor： Shang Hyeun PARK , Tae Gon KIM , Shin Ae JUN
IPC: C09K11/02 , G03F7/20 , G03F7/32 , G03F7/38 , C08F212/08 , C08F220/06 , C08F220/18 , C08F220/28 , C08K5/37 , C08K3/22
Abstract: A quantum dot-polymer composite pattern including at least one repeating section configured to emit light of a predetermined wavelength, and a production method and a display device including the quantum dot-polymer composite are disclosed. The quantum dot-polymer composite includes a polymer matrix including linear polymer including a carboxylic acid group-containing repeating unit and a plurality of cadmium-free quantum dots dispersed in the polymer matrix, has an absorption rate of greater than or equal to about 85% for light at wavelength of about 450 nm, and has an area ratio of a hydroxy group peak relative to an acrylate peak of greater than or equal to about 2.6 in Fourier transform infrared spectroscopy.
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公开(公告)号：US20200217974A1
公开(公告)日：2020-07-09
申请号：US16825293
申请日：2020-03-20
Inventor： Garam PARK , Tae Gon KIM , Nayoun WON , Shin Ae JUN , Soo Kyung KWON , Seon-Yeong KIM , Shang Hyeun PARK , Jooyeon AHN , Yuho WON , Eun Joo JANG , Hyo Sook JANG
Abstract: Disclosed are a quantum dot population including a plurality of cadmium free quantum dots, a quantum dot polymer composite including the same, and a display device including the same. The plurality of cadmium free quantum dots includes: 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, wherein an average particle size of the plurality of cadmium free quantum dots is greater than or equal to about 5.5 nm, a standard deviation of particle sizes of the plurality of cadmium free quantum dots is less than or equal to about 20% of the average particle size, and an average solidity of the plurality of cadmium free quantum dots is greater than or equal to about 0.85.
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8.发明申请公开(公告)号：US20190310549A1
公开(公告)日：2019-10-10
申请号：US16442984
申请日：2019-06-17
Inventor： Hyeyeon YANG , Tae Hyung KIM , Shang Hyeun PARK , Shin Ae JUN , Yong Seok HAN , Eun Joo JANG , Deukseok CHUNG
IPC: G03F7/00 , G03F7/105 , G03F7/027 , G03F7/004 , G03F7/031 , G03F7/028 , G03F7/40 , G03F7/32 , G03F7/20 , G03F7/16 , G03F7/033
Abstract: A photosensitive composition and a quantum dot-polymer composite pattern formed from the photosensitive composition are disclosed, and the photosensitive composition includes: a plurality of quantum dots; a color filter material including an absorption dye, an absorption pigment, or a combination thereof; a polymer binder; a photopolymerizable monomer having a carbon-carbon double bond; a photoinitiator; and a solvent, wherein in a normalized photoluminescence spectrum of the quantum dot and a normalized ultraviolet-visible absorption spectrum of the color filter material, a photoluminescence peak wavelength (PL peak wavelength) of the quantum dot and a wavelength of maximum absorbance of the color filter material do not overlap with each other, and the color filter material is included in an amount of less than or equal to 1 part by weight per parts by weight of the plurality of quantum dots.
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9.发明申请公开(公告)号：US20180239246A1
公开(公告)日：2018-08-23
申请号：US15900536
申请日：2018-02-20
Inventor： Shang Hyeun PARK , Shin Ae JUN
IPC: G03F7/004 , G03F7/16 , G03F7/20 , G03F7/32 , G03F7/40 , G03F7/031 , C09K11/02 , C09K11/70 , C09K11/56 , G03F7/00
Abstract: A photosensitive composition, a quantum dot polymer composite pattern prepared therefrom, and a layered structure and an electronic device including the same. The photosensitive composition includes a quantum dot; a carboxylic acid group-containing binder; a multi-thiol compound including a thiol group at each terminal end of the multi-thiol compound; a photopolymerizable monomer including a carbon-carbon double bond; a metal oxide fine particle; a polymeric stabilizer; a photoinitiator; and a solvent, wherein the polymeric stabilizer includes a polymer including —RO—, —R1COO—, —R1OCO—, —CR1R2—CAR—, —OCONH—R—NHCOO—R′—, or a combination thereof, as a repeating unit.
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10.发明申请公开(公告)号：US20180210335A1
公开(公告)日：2018-07-26
申请号：US15924814
申请日：2018-03-19
Inventor： Hyeyeon YANG , Tae Hyung KIM , Shang Hyeun PARK , Shin Ae JUN , Yong Seok HAN , Eun Joo JANG , Deukseok CHUNG
IPC: G03F7/00 , G03F7/32 , G03F7/16 , G03F7/028 , G03F7/031 , G03F7/004 , G03F7/20 , G03F7/033 , G03F7/40
CPC classification number: G03F7/0007 , G03F7/0045 , G03F7/0047 , G03F7/027 , G03F7/028 , G03F7/031 , G03F7/033 , G03F7/105 , G03F7/162 , G03F7/168 , G03F7/2002 , G03F7/322 , G03F7/40
Abstract: A photosensitive composition and a quantum dot-polymer composite pattern formed from the photosensitive composition are disclosed, and the photosensitive composition includes: a plurality of quantum dots; a color filter material including an absorption dye, an absorption pigment, or a combination thereof; a polymer binder; a photopolymerizable monomer having a carbon-carbon double bond; a photoinitiator; and a solvent, wherein in a normalized photoluminescence spectrum of the quantum dot and a normalized ultraviolet-visible absorption spectrum of the color filter material, a photoluminescence peak wavelength (PL peak wavelength) of the quantum dot and a wavelength of maximum absorbance of the color filter material do not overlap with each other, and the color filter material is included in an amount of less than or equal to 1 part by weight per 10 parts by weight of the plurality of quantum dots.
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