Patents by Inventor Shin Ae Jun

Shin Ae Jun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10381514
    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.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: August 13, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., BILKENT UNIVERSITY
    Inventors: Shin Ae Jun, Hilmi Volkan Demir, Eun Joo Jang, Burak Guzelturk, Can Uran, Talha Erdem, Kivanc Gungor
  • Publication number: 20190211260
    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.
    Type: Application
    Filed: January 11, 2019
    Publication date: July 11, 2019
    Inventors: 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
  • Publication number: 20190211262
    Abstract: A quantum dot includes a core including a first semiconductor nanocrystal and a multi-layered shell disposed on the core and including at least two layers, a production method thereof, and an electronic device including the same. The quantum dot does not include cadmium; the first semiconductor nanocrystal includes a Group III-V compound, the multi-layered shell includes a first layer surrounding at least a portion of a surface of the core, the first layer including a second semiconductor nanocrystal, the second semiconductor nanocrystal including a Group II-V compound, and a second layer disposed on the first layer, the second layer including a third semiconductor nanocrystal, the third semiconductor nanocrystal comprising a composition different from that of the second semiconductor nanocrystal.
    Type: Application
    Filed: January 11, 2019
    Publication date: July 11, 2019
    Inventors: Young Seok PARK, Eun Joo JANG, Shin Ae JUN, Nayoun WON, Jooyeon AHN, Sung Woo KIM
  • Publication number: 20190211265
    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.
    Type: Application
    Filed: January 11, 2019
    Publication date: July 11, 2019
    Inventors: 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
  • Publication number: 20190204673
    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<Cx<0.69 and 0.29<Cy<0.3370 in color coordinates, and a green apex of a color region of the white light is positioned in a region of 0.17<Cx<0.31 and 0.61<Cy<0.70 in the color coordinates.
    Type: Application
    Filed: March 8, 2019
    Publication date: July 4, 2019
    Inventors: Tae Hyung KIM, Eun Joo JANG, Shin Ae JUN, Hyun A KANG, Yongwook KIM, Na Youn WON, Hyo Sook JANG
  • Publication number: 20190185743
    Abstract: A layered structure including a photoluminescent layer including a quantum dot polymer composite; a light absorption layer disposed on the photoluminescent layer, the light absorption layer including an absorptive color-filter material; and a silicon containing layer disposed between the photoluminescent layer and the light absorption layer, wherein the quantum dot polymer composite includes a first polymer matrix and a plurality of quantum dots dispersed in the first polymer matrix, and the plurality of quantum dots absorb excitation light and emits light in a longer wavelength than the wavelength of the excited light; and the absorptive color-filter material is dispersed in a second polymer matrix, and the absorptive color-filter material absorbs the excitation light that passes through the photoluminescent layer and transmits the light emitted from the plurality of quantum dots and an electronic device including the same.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 20, 2019
    Inventors: Tae Gon KIM, Deukseok CHUNG, Jooyeon AHN, Shin Ae JUN
  • Patent number: 10324373
    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.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: June 18, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG DISPLAY CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Hyeyeon Yang, Tae Hyung Kim, Shang Hyeun Park, Shin Ae Jun, Yong Seok Han, Eun Joo Jang, Deukseok Chung
  • Patent number: 10323182
    Abstract: A method for preparing nanocrystal-metal oxide composites with long-term stability is disclosed herein. The nanocrystals are mixed with a first metal oxide precursor, a solvent and water to form a sol-gel composite. The sol-gel composite is pulverized to form a sol-gel composite powder. The sol-gel composite is then reacted with a second metal oxide precursor. The nanocrystal-metal oxide composites have a high luminescence efficiency and uniform emission wavelengths. The nanocrystal-metal oxide composite is used to manufacture a light-emitting device.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: June 18, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Shin Ae Jun, Eun Joo Jang
  • Publication number: 20190171100
    Abstract: A photosensitive composition includes a plurality of quantum dots including an organic ligand on the surface thereof; a binder; a photopolymerizable monomer composition; photoinitiator; and a solvent, wherein the photopolymerizable monomer includes a main monomer having 1 to 6 carbon-carbon double bonds, a first accessory monomer having 8 to 20 carbon-carbon double bonds, and a second accessory monomer represented by Chemical Formula A; and a method of preparing the photosensitive composition and a quantum dot-polymer composite pattern prepared therefrom are provided: R1O-(L1)m-L3-A-L4-(L2)n-OR2??Chemical Formula A wherein, A, L1, L2, L3, L4, R1, and R2 are the same as defined herein.
    Type: Application
    Filed: February 6, 2019
    Publication date: June 6, 2019
    Inventors: Jonggi KIM, Shang Hyeun PARK, Shin Ae JUN, Hojeong PAEK
  • Publication number: 20190140113
    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.
    Type: Application
    Filed: December 28, 2018
    Publication date: May 9, 2019
    Inventors: Shin Ae JUN, Eun Joo JANG, Soo Kyung KWON, Taek Hoon KIM, Won Joo LEE
  • Publication number: 20190136126
    Abstract: A quantum dot composition comprising a quantum dot, a metal thiolate complex compound, and a solvent, wherein the metal thiolate complex compound includes a hydrophobic moiety, a thioether moiety (—S—), and a polyvalent metal, and wherein the hydrophobic moiety includes a fluorinated organic group, a multi-aromatic ring-containing group having a backbone structure that includes a quaternary carbon atom, which is a part of a cyclic group, and two aromatic rings bound to the quaternary carbon atom, or a combination thereof.
    Type: Application
    Filed: November 5, 2018
    Publication date: May 9, 2019
    Inventors: Hyeyeon YANG, Jongmin LEE, Shin Ae JUN
  • Patent number: 10246634
    Abstract: A photosensitive composition including a quantum dot complex having a polymeric outer layer, a carboxylic acid group-containing binder, a photopolymerizable monomer having a carbon-carbon double bond, a photoinitiator, and a solvent, wherein the polymeric outer layer includes a copolymer including: a first repeating unit having a moiety capable of interacting with a surface of the quantum dot, an organic ligand compound bonded to the surface of the quantum dot, or a combination thereof, and a second repeating unit having a reactive moiety.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: April 2, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeyeon Yang, Shang Hyeun Park, Shin Ae Jun, Eun Joo Jang
  • Patent number: 10228584
    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<Cx<0.69 and 0.29<Cy<0.3370 in color coordinates, and a green apex of a color region of the white light is positioned in a region of 0.17<Cx<0.31 and 0.61<Cy<0.70 in the color coordinates.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: March 12, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Hyung Kim, Eun Joo Jang, Shin Ae Jun, Hyun A Kang, Yongwook Kim, Na Youn Won, Hyo Sook Jang
  • Publication number: 20190055465
    Abstract: A composition including a plurality of metal oxide particles including a first stabilizer and a second stabilizer on a surface thereof; a plurality of quantum dots; a binder polymer including a carboxylic acid group; a polymerizable monomer including a carbon-carbon double bond; an initiator; optionally a multi-thiol compound comprising at least two thiol groups at one or more terminal ends thereof; and a solvent, wherein the first stabilizer and the second stabilizer are as provided herein.
    Type: Application
    Filed: August 17, 2018
    Publication date: February 21, 2019
    Inventors: Shang Hyeun PARK, Shin Ae JUN
  • Patent number: 10203599
    Abstract: A photosensitive composition includes a plurality of quantum dots including an organic ligand on the surface thereof; a binder; a photopolymerizable monomer composition; photoinitiator; and a solvent, wherein the photopolymerizable monomer includes a main monomer having 1 to 6 carbon-carbon double bonds, a first accessory monomer having 8 to 20 carbon-carbon double bonds, and a second accessory monomer represented by Chemical Formula A; and a method of preparing the photosensitive composition and a quantum dot-polymer composite pattern prepared therefrom are provided: R1O-(L1)m-L3-A-L4-(L2)n-OR2??Chemical Formula A wherein, A, L1, L2, L3, L4, R1, and R2 are the same as defined herein.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: February 12, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Jonggi Kim, Shang Hyeun Park, Shin Ae Jun, Hojeong Paek
  • Patent number: 10202545
    Abstract: Disclosed herein is a nanocrystal comprising a core comprising a first nanocrystal material, the first nanocrystal material including a Group II-VI semiconductor compound or a Group III-V semiconductor compound; a shell being disposed upon a surface of the core and comprising a second nanocrystal material, the second nanocrystal material being different from the first nanocrystal material and including a Group II-VI semiconductor compound or a Group III-V semiconductor compound; and an alloy interlayer disposed between the core and the shell, wherein the emission peak wavelength of the nanocrystal is shifted into a shorter wavelength than the emission peak wavelength of the core.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: February 12, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Shin Ae Jun, Eun Joo Jang, Seong Jae Choi
  • Patent number: 10191326
    Abstract: A film for a backlight unit including a semiconductor nanocrystal-polymer composite film including a semiconductor nanocrystal and a matrix polymer in which the semiconductor nanocrystal is dispersed, wherein the matrix polymer is a polymer produced by a polymerization of a multifunctional photo-curable oligomer, a mono-functional photo-curable monomer, and a multifunctional photo-curable cross-linking agent, the multifunctional photo-curable oligomer has an acid value of less than or equal to about 0.1 mg of KOH/g, and a content (A1) of a first structural unit derived from the multifunctional photo-curable oligomer, a content (A2) of a second structural unit derived from the mono-functional photo-curable monomer, and a content (A3) of a third structural unit derived from the multifunctional photo-curable cross-linking agent satisfy Equation 1: A1<(A2+A3).
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: January 29, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chul Ho Jung, Hyun A Kang, Soo Kyung Kwon, Won Joo Lee, Eun Joo Jang, Hyo Sook Jang, Shin Ae Jun, Oul Cho, In Taek Han
  • Publication number: 20190023571
    Abstract: A process of synthesizing Ga—Se nanocrystals is provided, the process including: contacting a first precursor containing gallium with a second precursor containing selenium to obtain a Ga—Se single precursor; and reacting the Ga—Se single precursor in a solvent in the presence of a ligand compound, and optionally with a third precursor including an element (A) other than gallium and selenium, to prepare a Ga—Se nanocrystal represented by Chemical Formula 1: GaSexAy??[Chemical Formula 1] wherein x is about 1.1 to 3, and y is about 0.1 to 4.
    Type: Application
    Filed: August 30, 2018
    Publication date: January 24, 2019
    Inventors: Hyo Sook JANG, Shin Ae Jun, Eun Joo Jang
  • Patent number: 10179876
    Abstract: A nanocrystal particle including: a semiconductor material; boron and optionally fluorine, wherein the particle has an organic ligand bound to a surface thereof, the boron is present as being doped in the particle or as a metal boride and the fluorine is present as being doped in the particle or as a metal fluoride.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: January 15, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Shin Ae Jun, Yuho Won, Hyo Sook Jang, Eun Joo Jang
  • Publication number: 20190006556
    Abstract: A quantum dot includes a core-shell structure including a core including a first semiconductor nanocrystal and a shell disposed on the core, and including a material at least two different halogens, and the quantum dot does not include cadmium.
    Type: Application
    Filed: August 24, 2018
    Publication date: January 3, 2019
    Inventors: Garam PARK, Tae Hyung KIM, Eun Joo JANG, Hyo Sook JANG, Shin Ae JUN, Yongwook KIM, Taekhoon KIM, Jihyun MIN, Yuho WON