Patents by Inventor Soo-Kyung Kwon

Soo-Kyung Kwon 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).

  • 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
  • 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
  • Patent number: 10170648
    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: Grant
    Filed: September 27, 2013
    Date of Patent: January 1, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Shin Ae Jun, Eun Joo Jang, Soo Kyung Kwon, Taek Hoon Kim, Won Joo Lee
  • Publication number: 20180033856
    Abstract: A quantum dot includes: a core including a first semiconductor nanocrystal, and a shell disposed on the core, the shell including a second semiconductor nanocrystal and a dopant, wherein the first semiconductor nanocrystal includes a Group III-V compound, the second semiconductor nanocrystal includes zinc (Zn), sulfur (S), and selenium, and the dopant includes lithium, a Group 2A metal having an effective ionic radius less than an effective ionic radius of Zn2+, a Group 3A element having an effective ionic radius less than an effective ionic radius of Zn2+, or a combination thereof. Also a method of producing the quantum dot, and a composite, and an electronic device including the quantum dot.
    Type: Application
    Filed: July 26, 2017
    Publication date: February 1, 2018
    Inventors: Soo Kyung KWON, Yongwook KIM, Eun Joo JANG, Jihyun MIN
  • Publication number: 20170082879
    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: Application
    Filed: December 1, 2016
    Publication date: March 23, 2017
    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
  • 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
  • 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: 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
  • 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
  • Patent number: 8847273
    Abstract: A light emitting diode that includes: a light source; a buffer layer disposed on the light source and including a first matrix polymer; a polymer layer disposed on the buffer layer and including an organic/inorganic hybrid polymer; and an emission layer disposed on the polymer layer and including a light emitting particle dispersed in a second matrix polymer, wherein one selected from the light source, the buffer layer, the emission layer, and a combination thereof includes one selected from sulfurous component, a nitrogenous component, and a combination thereof.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: September 30, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun Joo Jang, Shin Ae Jun, Hyun A Kang, Hyo Sook Jang, Soo Kyung Kwon
  • Publication number: 20140131740
    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: Application
    Filed: October 22, 2013
    Publication date: May 15, 2014
    Applicant: 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
  • Publication number: 20140117292
    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: September 27, 2013
    Publication date: May 1, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Shin Ae JUN, Eun Joo JANG, Soo Kyung KWON, Taek Hoon KIM, Won Joo LEE
  • Publication number: 20130265522
    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: Application
    Filed: March 15, 2013
    Publication date: October 10, 2013
    Applicant: 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
  • Patent number: 8487331
    Abstract: A white light emitting diode and a liquid crystal display device that realizes images using the white light are provided. The white light emitting diode includes a blue light emitting diode (“LED”) light source, and a light conversion layer which converts incident light from the LED light source into white light. The light conversion layer includes green light emitting semiconductor nanocrystal and red light emitting semiconductor nanocrystal. A light emitting peak wavelength of the green light emitting semiconductor nanocrystal is about 520 nanometer (nm) or more, a light emitting peak wavelength of the red semiconductor nanocrystal is about 610 nanometer (nm) or more, and full width at half maximums (FWHMs) of light emitting peaks of the green and red light emitting semiconductor nanocrystals are about 45 nanometer (nm) or less.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: July 16, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun-Joo Jang, Young-Hwan Kim, Shin-Ae Jun, Hyo-Sook Jang, Seok-Hwan Hong, Soo-Kyung Kwon
  • Publication number: 20130062591
    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: Application
    Filed: May 9, 2012
    Publication date: March 14, 2013
    Applicant: 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
  • Publication number: 20120313082
    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: Application
    Filed: January 17, 2012
    Publication date: December 13, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun Joo JANG, Shin Ae JUN, Hyun A KANG, Hyo Sook JANG, Soo-Kyung KWON