Patents by Inventor Kyung-Joon Yoon

Kyung-Joon Yoon 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: 10988639
    Abstract: Provided is a photocurable composition for an optical bonding agent, including an acrylic photocurable compound and a plasticizer, in which the acrylic photocurable compound includes a monofunctional acrylic photocurable monomer and a (meth)acrylate-based photocurable polymer having a weight average molecular weight of 50,000 g/mol or less, and the monofunctional acrylic photocurable monomer is included in an amount of more than 0 wt % and 15 wt % or less in the photocurable composition for the optical bonding agent.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: April 27, 2021
    Inventors: Bo-Ra Yeon, Kyung-Joon Yoon, Jang-Soon Kim, Jin-Young Huh, Min-Kyeong Pyo
  • Patent number: 10815406
    Abstract: Provided is an adhesive composition for optical use, the adhesive composition including: a monofunctional urethane (meth)acrylate-based oligomer; and a polyfunctional urethane (meth)acrylate-based oligomer, in which a weight ratio of the monofunctional urethane (meth)acrylate-based oligomer and the polyfunctional urethane (meth)acrylate-based oligomer is 1:2 to 1:4.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: October 27, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jin Young Huh, Kyung Joon Yoon, Bo Ra Yeon, Hyun Mee Kim, Jang Soon Kim
  • Patent number: 10435598
    Abstract: Provided are an adhesive bonding composition for optical use and a multistage curing method thereof, the composition including a methacrylate-based monomer and an acrylate-based monomer, in which a weight ratio of the methacrylate-based monomer to the acrylate-based monomer ranges from about 1:1 to about 1:10.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: October 8, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Bo-Ra Yeon, Bu-Gi Jung, Sang-Hwan Kim, Kyung-Joon Yoon, Jang-Soon Kim, Won-Gu Choi
  • Publication number: 20180258331
    Abstract: Provided is an adhesive composition for optical use, the adhesive composition including: a monofunctional urethane (meth)acrylate-based oligomer; and a polyfunctional urethane (meth)acrylate-based oligomer, in which a weight ratio of the monofunctional urethane (meth)acrylate-based oligomer and the polyfunctional urethane (meth)acrylate-based oligomer is 1:2 to 1:4.
    Type: Application
    Filed: April 11, 2017
    Publication date: September 13, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Jin Young Huh, Kyung Joon Yoon, Bo Ra Yeon, Hyun Mee Kim, Jang Soon Kim
  • Publication number: 20180112106
    Abstract: Provided is a photocurable composition for an optical bonding agent, including an acrylic photocurable compound and a plasticizer, in which the acrylic photocurable compound includes a monofunctional acrylic photocurable monomer and a (meth)acrylate-based photocurable polymer having a weight average molecular weight of 50,000 g/mol or less, and the monofunctional acrylic photocurable monomer is included in an amount of more than 0 wt % and 15 wt % or less in the photocurable composition for the optical bonding agent.
    Type: Application
    Filed: March 29, 2016
    Publication date: April 26, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Bo-Ra Yeon, Kyung-Joon Yoon, Jang-Soon Kim, Jin-Young Huh, Min-Kyeong Pyo
  • Publication number: 20170342300
    Abstract: Provided are an adhesive bonding composition for optical use and a multistage curing method thereof, the composition including a methacrylate-based monomer and an acrylate-based monomer, in which a weight ratio of the methacrylate-based monomer to the acrylate-based monomer ranges from about 1:1 to about 1:10.
    Type: Application
    Filed: December 2, 2015
    Publication date: November 30, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Bo-Ra Yeon, Bu-Gi Jung, Sang-Hwan Kim, Kyung-Joon Yoon, Jang-Soon Kim, Won-Gu Choi
  • Patent number: 9087972
    Abstract: A flat panel display device and method of manufacturing the display device. The display device comprises a first substrate and a connection pad located along a side of the first substrate. A second substrate overlaps with the first substrate, wherein the second substrate does not overlap with an exposed portion of the first substrate. A first contact pad electrically couples the second substrate and the first substrate. A first distance from the side of the first substrate to a boundary between the exposed portion of the first substrate and the second substrate is greater than a second distance from the side of the first substrate to the first contact pad. The display device may be, for example, a touch capable display device that uses the first contact pad to transfer touch sensing signals from the second substrate to the first substrate.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: July 21, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Bong Ki Choi, Kwang Su Lim, Hyo Dae Bae, Chang Nam Kim, Sang Kyu Lee, Joon Won Park, Kyung Joon Yoon
  • Publication number: 20130270580
    Abstract: A flat panel display device and method of manufacturing the display device. The display device comprises a first substrate and a connection pad located along a side of the first substrate. A second substrate overlaps with the first substrate, wherein the second substrate does not overlap with an exposed portion of the first substrate. A first contact pad electrically couples the second substrate and the first substrate. A first distance from the side of the first substrate to a boundary between the exposed portion of the first substrate and the second substrate is greater than a second distance from the side of the first substrate to the first contact pad. The display device may be, for example, a touch capable display device that uses the first contact pad to transfer touch sensing signals from the second substrate to the first substrate.
    Type: Application
    Filed: April 10, 2013
    Publication date: October 17, 2013
    Applicant: LG Display Co., Ltd.
    Inventors: Bong Ki CHOI, Kwang Su LIM, Hyo Dae BAE, Chang Nam KIM, Sang Kyu LEE, Joon Won PARK, Kyung Joon YOON
  • Publication number: 20060050380
    Abstract: The present invention relates to a rear projection screen (1) for allowing an observer to view an image at a front side by receiving light projected at a rear side.
    Type: Application
    Filed: September 6, 2005
    Publication date: March 9, 2006
    Inventors: Kyung-Joon Yoon, Han-Pil Kim, Geun-Hee Lee, Wook Kim, Seok-Joo Byun