Patents by Inventor Heeje Woo

Heeje Woo 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: 20240093042
    Abstract: Embodiments provide an ink composition, a layer manufactured using the ink composition, an electrophoresis device including the layer, and a display device including the layer. The ink composition includes a semiconductor nanorod, and a solvent that satisfies Equation 1: |?1??2|/?1*100?10??[Equation 1] In Equation 1, ?1 is a dielectric constant of the solvent at 50 Hz, and ?2 is a dielectric constant of the solvent at 50 kHz.
    Type: Application
    Filed: September 5, 2023
    Publication date: March 21, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Janghyuk KIM, Jinsuop YOUN, Kyuyoung KIM, MISUN KIM, Minjun KIM, BONGYONG KIM, YoungMin KIM, CHULJIN PARK, Heeje WOO, JEONGWOO LEE, HYUNMOO CHOI
  • Publication number: 20240059919
    Abstract: Disclosed are an ink composition, a layer manufactured using the ink composition, an electrophoresis device including the layer, and a display device, the ink composition including (A) a semiconductor nanorod including: a functional group represented by Chemical Formula 1; and (B) a solvent. In Chemical Formula 1, each substituent is as defined in the specification.
    Type: Application
    Filed: August 2, 2023
    Publication date: February 22, 2024
    Inventors: Minjun KIM, Kyuyoung KIM, MISUN KIM, BONGYONG KIM, YoungMin KIM, Janghyuk KIM, YOUNG WOO PARK, CHULJIN PARK, Heeje WOO, EUN SUN YU, Jinsuop YOUN, JEONGWOO LEE, HYUNMOO CHOI
  • Publication number: 20230407124
    Abstract: Disclosed are an ink composition, a layer manufactured using the ink composition, an electrophoresis apparatus including the layer, and a display device, the ink composition including (A) a semiconductor nanorod, and (B) a solvent including a compound having a set or specific structure, wherein the solvent has an electrical conductivity of less than 2.0 ?S/m at 25° C.
    Type: Application
    Filed: June 16, 2023
    Publication date: December 21, 2023
    Inventors: Janghyuk KIM, Kyuyoung KIM, MISUN KIM, CHULJIN PARK, Heeje WOO, Jinsuop YOUN, HYUNMOO CHOI, Minjun KIM, EUN SUN YU
  • Publication number: 20230407122
    Abstract: Embodiments provide an ink composition, a layer manufactured using the ink composition, and an electrophoresis apparatus and a display device including the same. The ink composition includes a semiconductor nanorod including at least one functional group each independently represented by one of Chemical Formula 1-1 to Chemical Formula 1-3, and a solvent.
    Type: Application
    Filed: June 16, 2023
    Publication date: December 21, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Jinsuop YOUN, Kyuyoung KIM, MISUN KIM, Minjun KIM, BONGYONG KIM, YoungMin KIM, Janghyuk KIM, YOUNG WOO PARK, CHULJIN PARK, Heeje WOO, EUN SUN YU, JEONGWOO LEE, HYUNMOO CHOI
  • Patent number: 10197820
    Abstract: Provided are quantum dots passivated by oligomers or polymers which are formed by a reaction of a first monomer having at least three thiol groups (—SH) at the terminal end with a second monomer having at least two functional groups at the terminal end that can react with the thiol groups, and a spacer group between the at least two functional groups.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: February 5, 2019
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Jinsuop Youn, Obum Kwon, Jun Woo Lee, Euihyun Kong, Jonggi Kim, Sang Cheon Park, Onyou Park, Heeje Woo, Sungseo Cho, Hyunjoo Han
  • Publication number: 20180059442
    Abstract: Provided are quantum dots passivated by oligomers or polymers which are formed by a reaction of a first monomer having at least three thiol groups (—SH) at the terminal end with a second monomer having at least two functional groups at the terminal end that can react with the thiol groups, and a spacer group between the at least two functional groups.
    Type: Application
    Filed: December 4, 2015
    Publication date: March 1, 2018
    Inventors: Jinsuop YOUN, Obum KWON, Jun Woo LEE, Euihyun KONG, Jonggi KIM, Sang Cheon PARK, Onyou PARK, Heeje WOO, Sungseo CHO, Hyunjoo HAN
  • Publication number: 20150087137
    Abstract: Provided are a nitride thin film structure and a method of forming the same. If a nitride thin film is formed on a substrate that is not a nitride, many defects are generated by a difference in lattice constants between the substrate and the nitride thin film. Also, there is a problem of warping the substrate by a difference in thermal expansion coefficients between the substrate and the nitride thin film. In order to solve the problems, the present invention suggests a thin film structure in which after coating hollow particles, i.e. hollow structures on the substrate, the nitride thin film is grown thereon and the method of forming the thin film structure. According to the present invention, since an epitaxial lateral overgrowth (ELO) effect can be obtained by the hollow structures, high-quality nitride thin film can be formed.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 26, 2015
    Inventors: Euijoon YOON, Kookheon CHAR, Jong Hak KIM, Sewon OH, Heeje WOO
  • Patent number: 8847362
    Abstract: Provided are a nitride thin film structure and a method of forming the same. If a nitride thin film is formed on a substrate that is not a nitride, many defects are generated by a difference in lattice constants between the substrate and the nitride thin film. Also, there is a problem of warping the substrate by a difference in thermal expansion coefficients between the substrate and the nitride thin film. In order to solve the problems, the present invention suggests a thin film structure in which after coating hollow particles, i.e. hollow structures on the substrate, the nitride thin film is grown thereon and the method of forming the thin film structure. According to the present invention, since an epitaxial lateral overgrowth (ELO) effect can be obtained by the hollow structures, high-quality nitride thin film can be formed.
    Type: Grant
    Filed: September 7, 2009
    Date of Patent: September 30, 2014
    Assignee: SNU R&DB Foundation
    Inventors: Euijoon Yoon, Kookheon Char, Jong Hak Kim, Sewon Oh, Heeje Woo
  • Publication number: 20110156214
    Abstract: Provided are a nitride thin film structure and a method of forming the same. If a nitride thin film is formed on a substrate that is not a nitride, many defects are generated by a difference in lattice constants between the substrate and the nitride thin film. Also, there is a problem of warping the substrate by a difference in thermal expansion coefficients between the substrate and the nitride thin film. In order to solve the problems, the present invention suggests a thin film structure in which after coating hollow particles, i.e. hollow structures on the substrate, the nitride thin film is grown thereon and the method of forming the thin film structure. According to the present invention, since an epitaxial lateral overgrowth (ELO) effect can be obtained by the hollow structures, high-quality nitride thin film can be formed.
    Type: Application
    Filed: September 7, 2009
    Publication date: June 30, 2011
    Applicant: SNU R&DB FOUNDATION
    Inventors: Euijoon Yoon, Kookheon Char, Jong Hak Kim, Sewon Oh, Heeje Woo