Patents by Inventor Sung-Joon Min

Sung-Joon Min 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: 11978803
    Abstract: A substrate for a flexible display is disclosed. The substrate has a film stress range that does not affect an electronic device such as a thin film transistor, and includes a barrier layer having excellent oxygen and moisture blocking characteristics, and a method of manufacturing the substrate. The substrate includes; a plastic substrate having a glass transition temperature from about 350° C. to about 500° C.; and a barrier layer disposed on the plastic substrate, having a inti layer structure, wherein at least one silicon oxide layer and at least one silicon nitride layer are alternately stacked on each other, and having a film stress from about ?200 MPa to about 200 MPa due to the at least one silicon oxide layer and the at least one silicon nitride layer.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: May 7, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Joon Seo, Hoon-Kee Min, Dong-Un Jin, Sung-Guk An
  • Publication number: 20240065861
    Abstract: A robotic prosthetic foot according to the present disclosure includes a coupling module having an upper portion to which a limb part of a user is coupled, a prosthetic foot module configured to be coupled to a lower portion of the coupling module and support a load of the user to enable the user to walk, and a joint module provided at the coupling module to enable the prosthetic foot module to rotate, wherein the joint module includes an elastic unit configured to compress and expand due to the prosthetic foot module rotating as the user walks and generate an elastic restoring force to facilitate the rotation of the prosthetic foot module.
    Type: Application
    Filed: December 21, 2021
    Publication date: February 29, 2024
    Applicant: HUGO DYNAMICS
    Inventors: Sung Joon MIN, Byung Chae KIM, Kwon Mo MUN, Keun Jinn KANG, Wan Sue CHOI
  • Patent number: 11441075
    Abstract: A liquid crystal alignment agent composition for producing a liquid crystal alignment film having enhanced alignment property and stability and a high voltage holding ratio, a method of producing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the same, are provided.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: September 13, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Soon Ho Kwon, Seongku Kim, Sung Joon Min, Hoonseo Park, Hyeong Seuk Yun, Sang Mi Lee, Jung Ho Jo
  • Patent number: 11370971
    Abstract: A liquid crystal alignment film comprising a polymer, having an excellent alignment property, stability, and high film strength, and thus exhibiting excellent durability and a high residual image characteristic, and a liquid crystal display device using the liquid crystal alignment film.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: June 28, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Hyeong Seuk Yun, Sung Joon Min, Jun Young Yoon, Jung Ho Jo
  • Patent number: 11345782
    Abstract: A polymer having excellent liquid crystal alignment and electrical properties and thus is suitable for use as a liquid crystal alignment agent, a liquid crystal alignment agent including the same, a liquid crystal alignment film formed from the liquid crystal alignment agent, and a liquid crystal display device including the liquid crystal alignment film are provided.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: May 31, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Soon Ho Kwon, Seongku Kim, Sung Joon Min, Hang Ah Park, Jun Young Yoon, Jung Ho Jo
  • Patent number: 11287700
    Abstract: The present invention relates to a polymer having excellent liquid crystal alignment and electrical properties and thus is suitable for use as a liquid crystal alignment agent, a liquid crystal alignment agent containing the same, a liquid crystal aligning film formed from the liquid crystal alignment agent, and a liquid crystal display device containing the liquid crystal aligning film.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: March 29, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Soon Ho Kwon, Jung Ho Jo, Sung Joon Min, Sang Mi Lee, Kichul Koo, Jun Young Yoon, Hyeong Seuk Yun, Yoon Bin Lim, Seongku Kim
  • Patent number: 11286348
    Abstract: The present invention relates to a polymer having excellent liquid crystal alignment and electrical properties and thus is suitable for use as a liquid crystal alignment agent, a liquid crystal alignment agent containing the same, a liquid crystal aligning film formed from the liquid crystal alignment agent, and a liquid crystal display device containing the liquid crystal aligning film.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: March 29, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Soon Ho Kwon, Kichul Koo, Jung Ho Jo, Sung Joon Min, Sang Mi Lee, Jun Young Yoon, Hyeong Seuk Yun, Yoon Bin Lim
  • Patent number: 11268028
    Abstract: A liquid crystal alignment agent composition for producing a liquid crystal alignment film having enhanced alignment property and stability and a high voltage holding ratio, a method of producing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the same, are provided.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: March 8, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Soon Ho Kwon, Sung Joon Min, Hang Ah Park, Hoonseo Park, Hyeong Seuk Yun, Jung Ho Jo
  • Patent number: 11230670
    Abstract: The present invention relates to a liquid crystal aligning agent composition for producing a liquid crystal alignment film having improved film strength together with liquid crystal alignment properties, a method for producing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the same.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: January 25, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Sang Mi Lee, Hee Han, Jung Ho Jo, Sung Joon Min, Hang Ah Park, Soon Ho Kwon, Jun Young Yoon, Hyeong Seuk Yun, Seongku Kim, Hoonseo Park
  • Patent number: 11209699
    Abstract: A liquid crystal aligning agent composition for forming a liquid crystal alignment film that can exhibit excellent alignment and electrical characteristics and simultaneously having enhanced durability, a method for preparing a liquid crystal alignment film using the liquid crystal aligning agent composition, and a liquid crystal alignment film comprising an aligned and cured product of the liquid crystal aligning agent composition and a liquid crystal display device comprising the liquid crystal alignment film.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: December 28, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Seongku Kim, Hee Han, Jung Ho Jo, Sung Joon Min, Soon Ho Kwon, Jun Young Yoon, Hyeong Seuk Yun, Hoonseo Park
  • Patent number: 11142697
    Abstract: The present invention relates to a liquid crystal aligning agent composition capable of securing a high imidization rate under relatively mild curing conditions, minimizing side reactions and thus having excellent stability, a method for producing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the same.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: October 12, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Jung Ho Jo, Hee Han, Sung Joon Min, Hang Ah Park, Sang Mi Lee, Soon Ho Kwon, Jun Young Yoon, Hyeong Seuk Yun, Seongku Kim
  • Patent number: 11136506
    Abstract: A polymer having excellent liquid crystal alignment and electrical properties and thus is suitable for use as a liquid crystal alignment agent, a liquid crystal alignment agent including the same, a liquid crystal alignment film formed from the liquid crystal alignment agent, and a liquid crystal display device including the liquid crystal alignment film are provided.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: October 5, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Soon Ho Kwon, Jung Ho Jo, Sung Joon Min, Hang Ah Park, Jun Young Yoon
  • Patent number: 11137644
    Abstract: The present invention relates to a polymer which is excellent in terms of liquid crystal alignment property, durability, and electrical characteristics, and thus is suitable for use in a liquid crystal aligning agent, a liquid crystal aligning agent composition including the same, a liquid crystal alignment film formed from the liquid crystal aligning agent composition, and a liquid crystal display device including the liquid crystal alignment film.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: October 5, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Seongku Kim, Hee Han, Jung Ho Jo, Sung Joon Min, Soon Ho Kwon, Jun Young Yoon, Hyeongseuk Yun, Hoonseo Park
  • Patent number: 11073728
    Abstract: The present invention provides a liquid crystal alignment film not only having an excellent alignment property and stability, but also having high film strength, and thus exhibiting excellent durability and a high residual image property, a method for preparing the same, and a liquid crystal display device using the same.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: July 27, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hyeong Seuk Yun, Jung Ho Jo, Sung Joon Min, Hee Han, Hang Ah Park, Sang Mi Lee, Soon Ho Kwon, Jun Young Yoon
  • Patent number: 11036093
    Abstract: The present application relates to a method of manufacturing an optical device, an optical device and a use of the optical device. The method of manufacturing an optical device of the present application can form a patterned mold layer to maintain an appropriate gap between the upper and lower substrates, and can apply an imprinting process in patterning the mold layer to simply manufacture the mold pattern having the desired shape. In addition, the optical device manufactured by the above manufacturing method can have a low driving voltage and no short circuit phenomenon, and be realized as a flexible device. Such an optical device can be applied to various display devices such as LCDs.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: June 15, 2021
    Inventors: Jung Sun You, Sung Joon Min, Dong Hyun Oh, Jin Hong Kim, Jung Woon Kim, Eun Jung Lim
  • Patent number: 11036089
    Abstract: The present invention provides a liquid crystal alignment film not only having an excellent alignment property and stability, but also having high film strength, and thus exhibiting excellent durability and a high residual image property, a method for preparing the same, and a liquid crystal display device using the same.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: June 15, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hyeong Seuk Yun, Jung Ho Jo, Sung Joon Min, Hee Han, Hang Ah Park, Sang Mi Lee, Soon Ho Kwon, Jun Young Yoon
  • Publication number: 20210139780
    Abstract: The present invention relates to a polymer having excellent liquid crystal alignment and electrical properties and thus is suitable for use as a liquid crystal alignment agent, a liquid crystal alignment agent containing the same, a liquid crystal aligning film formed from the liquid crystal alignment agent, and a liquid crystal display device containing the liquid crystal aligning film.
    Type: Application
    Filed: May 14, 2018
    Publication date: May 13, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Soon Ho KWON, Jung Ho JO, Sung Joon MIN, Sang Mi LEE, Kichul KOO, Jun Young YOON, Hyeong Seuk YUN, Yoon Bin LIM, Seongku KIM
  • Publication number: 20210130694
    Abstract: A liquid crystal aligning agent composition for forming a liquid crystal alignment film that can exhibit excellent alignment and electrical characteristics and simultaneously having enhanced durability, a method for preparing a liquid crystal alignment film using the liquid crystal aligning agent composition, and a liquid crystal alignment film comprising an aligned and cured product of the liquid crystal aligning agent composition and a liquid crystal display device comprising the liquid crystal alignment film.
    Type: Application
    Filed: August 9, 2018
    Publication date: May 6, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Seongku KIM, Hee HAN, Jung Ho JO, Sung Joon MIN, Soon Ho KWON, Jun Young YOON, Hyeong Seuk YUN, Hoonseo PARK
  • Publication number: 20210130695
    Abstract: A liquid crystal alignment agent composition for producing a liquid crystal alignment film having enhanced alignment property and stability and a high voltage holding ratio, a method of producing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the same, are provided.
    Type: Application
    Filed: October 10, 2018
    Publication date: May 6, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Soon Ho KWON, Sung Joon MIN, Hang Ah PARK, Hoonseo PARK, Hyeong Seuk YUN, Jung Ho JO
  • Patent number: 10982147
    Abstract: The present invention relates to a liquid crystal aligning agent composition for forming a liquid crystal alignment film exhibiting excellent alignment and electrical characteristics and simultaneously having excellent film strength, a method for preparing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the same.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: April 20, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Seongku Kim, Hee Han, Jung Ho Jo, Sung Joon Min, Sang Mi Lee, Soon Ho Kwon, Jun Young Yoon, Hyeong Seuk Yun, Hoonseo Park