Patents by Inventor Hyo Sook Jang

Hyo Sook Jang 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: 9523882
    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: June 17, 2015
    Date of Patent: December 20, 2016
    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: 20160289557
    Abstract: A composition comprising: a first monomer comprising at least three thiol groups, each located at a terminal end of the first monomer, wherein the first monomer is represented by the following Chemical Formula 1-1: a second monomer comprising at least two unsaturated carbon-carbon bonds, each located at a terminal end of the second monomer, wherein the second monomer is represented by the following Chemical Formula 2: wherein in Chemical Formulae 1 and 2 groups R2, Ra to Rd, Ya to Yd, L1? and L2, X and variables k3 and k4 are the same as described in the specification, and a first light emitting particle, wherein the first light emitting particle consists of a semiconductor nanocrystal comprising a Group II-VI compound, a Group III-V compound, a Group IV-VI compound, or a combination thereof, wherein the first light emitting particle has a core/shell structure having a first semiconductor nanocrystal being surrounded by a second semiconductor nanocrystal, and the first semiconductor nanocrystal bein
    Type: Application
    Filed: June 16, 2016
    Publication date: October 6, 2016
    Inventors: Hyun A KANG, Eun Joo JANG, Young Hwan KIM, Shin Ae JUN, Hyo Sook JANG
  • Publication number: 20160214862
    Abstract: A process of synthesizing Mg—Se nanocrystals is provided, the process including reacting a first precursor including magnesium and a second precursor including selenium in the presence of a ligand compound in an organic solvent to form a nanocrystal of MgSe or an alloy thereof, wherein the organic solvent and the ligand compound do not include an oxygen functional group.
    Type: Application
    Filed: July 24, 2014
    Publication date: July 28, 2016
    Inventors: Taekhoon KIM, Eun Joo JANG, Hyo Sook JANG, Shin Ae JUN, Hyunki KIM
  • Patent number: 9382470
    Abstract: A composition comprising: a first monomer comprising at least three thiol groups, each located at a terminal end of the first monomer, wherein the first monomer is represented by the following Chemical Formula 1-1: a second monomer comprising at least two unsaturated carbon-carbon bonds, each located at a terminal end of the second monomer, wherein the second monomer is represented by the following Chemical Formula 2: wherein in Chemical Formulae 1 and 2 groups R2, Ra to Rd, Ya to Yd, L1? and L2, X and variables k3 and k4 are the same as described in the specification, and a first light emitting particle, wherein the first light emitting particle consists of a semiconductor nanocrystal comprising a Group II-VI compound, a Group III-V compound, a Group IV-VI compound, or a combination thereof, wherein the first light emitting particle has a core/shell structure having a first semiconductor nanocrystal being surrounded by a second semiconductor nanocrystal, and the first semiconductor nanocrystal being
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: July 5, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun A Kang, Eun Joo Jang, Young Hwan Kim, Shin Ae Jun, Hyo Sook Jang
  • Publication number: 20160186960
    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: September 21, 2015
    Publication date: June 30, 2016
    Inventors: Tae Hyung KIM, Eun Joo JANG, Shin Ae JUN, Hyun A KANG, Yongwook KIM, Na Youn WON, Hyo Sook JANG
  • Publication number: 20160167965
    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: July 30, 2014
    Publication date: June 16, 2016
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyo Sook JANG, Shin Ae JUN, Eun Joo JANG
  • Patent number: 9362189
    Abstract: A case including a case main body, a matrix including a semiconductor nanocrystal, the matrix disposed in the case main body, and a sealant disposed on the case main body, wherein the sealant has a gas permeability of about 1 cubic centimeter at standard temperature and pressure per centimeter per meter squared per day per atmosphere or less and a tensile strength of about 5 megaPascals or more, and wherein the semiconductor nanocrystal is a Group II-VI compound, a Group III-V compound, a Group IV-VI compound, a Group IV element, a Group IV element, a Group IV compound, or a combination thereof.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: June 7, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Shin Ae Jun, Eun Joo Jang, In-Taek Han, Hyun A. Kang, Hyo Sook Jang, Sang Eui Lee, Soo-Kyung Kwon
  • Patent number: 9334440
    Abstract: A process of synthesizing nanocrystals, the process including contacting a first precursor, a ligand compound, and a second precursor in a solvent having a boiling point of less than or equal to about 150° C. and a polarity index of less than or equal to 5, and performing a thermal decomposition reaction between the first precursor and the second precursor at a higher pressure than atmospheric pressure and at a higher temperature than a boiling point of the solvent, wherein at least one of the first precursor and the second precursor is a metal-containing precursor.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: May 10, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun Joo Jang, Hyo Sook Jang, Won Joo Lee
  • Patent number: 9322979
    Abstract: A backlight unit for a liquid crystal display device including an light emitting diode light source; a light conversion layer disposed apart from the light emitting diode light source, wherein the light conversion layer is configured to convert light emitted from the light emitting diode light source to white light and provide the white light to a liquid crystal panel; and a light guide panel disposed between the light emitting diode light source and the light conversion layer, wherein the light conversion layer includes a semiconductor nanocrystal and a polymer matrix, wherein the semiconductor nanocrystal is coated with a first polymer, and wherein the polymer matrix comprises a thermoplastic second polymer.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: April 26, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun A Kang, Eun Joo Jang, Shin Ae Jun, Hyo Sook Jang, Chul Ho Jung
  • Patent number: 9284484
    Abstract: A process of synthesizing nanocrystals, the process including: obtaining a metal precursor, a non-metal precursor, a ligand compound, and an ionic liquid; and contacting the metal precursor, the non-metal precursor, the ligand compound, and the ionic liquid to form a mixture and synthesize a first semiconductor nanocrystal.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: March 15, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyo Sook Jang, Eun Joo Jang, Shin Ae Jun
  • Patent number: 9202997
    Abstract: A semiconductor nanocrystal-polymer micronized composite that includes: at least one semiconductor nanocrystal; and a polymer surrounding the at least one semiconductor nanocrystal, wherein the polymer includes at least one functional group reactive with the semiconductor nanocrystal, and wherein the semiconductor nanocrystal-polymer micronized composite has a particle diameter of less than or equal to about 70 micrometers (?m) with a standard deviation of less than or equal to about 20 micrometers (?m), and an aspect ratio of more than about 1.0 and less than or equal to about 10.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: December 1, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyo-Sook Jang, Hyun-A Kang, Eun-Joo Jang, Shin Ae Jun, Tae Won Jeong, In Taek Han
  • Patent number: 9193900
    Abstract: Provided is an optoelectronic device that includes: a light source; an emission layer disposed on the light source and including light emitting particles dispersed in a matrix polymer; and a polymer film disposed on the emission layer. The polymer film includes two layers: a first layer including a first polymer and a second layer including a second polymer. The first polymer includes a polymerized product of a first monomer including at least two thiol (—SH) groups and a siloxane-based second monomer or oligomer including at least one carbon-carbon unsaturated bond at a terminal end, and the second polymer includes a polymerized product of a third monomer including at least two thiol (—SH) groups and a fourth monomer including at least two carbon-carbon unsaturated bonds at a terminal end.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: November 24, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun A Kang, Young Hwan Kim, Eun Joo Jang, Shin Ae Jun, Hyo Sook Jang
  • Patent number: 9196682
    Abstract: A nanoparticle complex, including a semiconductor nanocrystal; and a metal complex ligand on the surface of the semiconductor nanocrystal. The nanoparticle complex may further include a polymer shell contacting the metal complex ligand.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: November 24, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyo-Sook Jang, Eun-Joo Jang, Shin-Ae Jun, Seok-Hwan Hong, Soo-Kyung Kwon
  • Patent number: 9181471
    Abstract: A light emitting device including: a blue light source; a phosphor; and a semiconductor nanocrystal, and emits white light having a R1-R8 average color rendering index (“CRI”) of greater than or equal to about 90, and a R9 red color rendering index (R9) of greater than or equal to about 90.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: November 10, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun A Kang, Oul Cho, Eun Joo Jang, Hyo Sook Jang, Shin Ae Jun, Soo Kyung Kwon, Won Joo Lee
  • Patent number: 9158149
    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: March 15, 2013
    Date of Patent: October 13, 2015
    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: 20150286094
    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)??Equation 1.
    Type: Application
    Filed: June 17, 2015
    Publication date: October 8, 2015
    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: 20150218444
    Abstract: A composition comprising: a first monomer comprising at least three thiol groups, each located at a terminal end of the first monomer, wherein the first monomer is represented by the following Chemical Formula 1-1: a second monomer comprising at least two unsaturated carbon-carbon bonds, each located at a terminal end of the second monomer, wherein the second monomer is represented by the following Chemical Formula 2: wherein in Chemical Formulae 1 and 2 groups R2, Ra to Rd, Ya to Yd, L1? and L2, X and variables k3 and k4 are the same as described in the specification, and a first light emitting particle, wherein the first light emitting particle consists of a semiconductor nanocrystal comprising a Group II-VI compound, a Group III-V compound, a Group IV-VI compound, or a combination thereof, wherein the first light emitting particle has a core/shell structure having a first semiconductor nanocrystal being surrounded by a second semiconductor nanocrystal, and the first semiconductor nanocrystal bein
    Type: Application
    Filed: March 20, 2015
    Publication date: August 6, 2015
    Inventors: Hyun A KANG, Eun Joo JANG, Young Hwan KIM, Shin Ae JUN, Hyo Sook JANG
  • Publication number: 20150218442
    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: Application
    Filed: February 4, 2015
    Publication date: August 6, 2015
    Inventors: Shin Ae JUN, Yuho WON, Hyo Sook JANG, Eun Joo JANG
  • Patent number: 9082982
    Abstract: A semiconductor nanocrystal-polymer composite including a semiconductor nanocrystal, a polymer comprising a plurality of carboxylate anion groups (—COO?) bindable to a surface of the semiconductor nanocrystal, and a metal cation bindable to a carboxylate anion group of the plurality of carboxylate anion groups.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: July 14, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Shin Ae Jun, Hyun A Kang, Eun Joo Jang, Soo Kyung Kwon, Hyo Sook Jang
  • Patent number: 9070838
    Abstract: Disclosed is an optoelectronic device that includes a light source, an emission layer disposed on the light source including a light emitting particle dispersed in a matrix polymer, and a polymer film disposed on the emission layer, the polymer film including a polymerized polymer of a first monomer including at least two thiol (—SH) groups and a second monomer including at least two carbon-carbon unsaturated bond-containing groups at a terminal end.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: June 30, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun Joo Jang, Shin Ae Jun, Hyun A Kang, Hyo Sook Jang, Soo-Kyung Kwon