Patents by Inventor Hwa-sub Shim

Hwa-sub Shim 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: 10662306
    Abstract: Disclosed are an optical film, including: a transparent film, and a coating layer on at least one surface of the transparent film, in which the coating layer is formed using a composition including a polymer resin, a dihydrazide-based crosslinking agent, and water-dispersible fine particles, and a polarizing plate including the same.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: May 26, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Yirang Lim, Hwa Sub Shim, Jun Wuk Park, Sung Hyun Jeon, Kyoung Won Kim
  • Patent number: 10416355
    Abstract: The present invention relates to an optical film including a transparent film, and a coating layer on at least one surface of the transparent film, wherein the coating layer is formed using a water-dispersible coating composition comprising a polymer resin including a hydroxyl group; at least one cross-linking agent selected from the group consisting of a titanate-based cross-linking agent and a zirconate-based cross-linking agent; and water-dispersible fine particles, and a polarizing plate including the same.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: September 17, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Yirang Lim, Nam jeong Lee, Hwa Sub Shim, Jun Wuk Park
  • Patent number: 10209407
    Abstract: There is provided an optical film including an acrylic film, and a functional coating layer formed on at least one side of the acrylic film. The functional coating layer includes a water-dispersible resin and at least two kinds of fine particles having different average particle sizes.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: February 19, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Jun-Wuk Park, Yi-Rang Lim, Nam-Jeong Lee, Hwa-Sub Shim
  • Patent number: 10144831
    Abstract: The present invention relates to an optical film including: a base material film; and a primer layer containing a polyester resin and water-dispersible minute particulates on at least one surface of the base material film and having a refractive index difference of 0.03 or less from the base material film, in which the polyester resin includes polyester glycol formed by a reaction of polybasic acid including an aromatic carboxylic acid compound and an aliphatic carboxylic acid compound at a mole ratio of 1:9 to 9:1 and polyol, adhesion force between the optical film and a functional coating layer is excellent, and a rainbow phenomenon is reduced and an optical property is excellent due to a small refractive index difference.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: December 4, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Hwa-Sub Shim, Jun-Wuk Park, Yi-Rang Lim, Kyoung-Won Kim
  • Patent number: 9945986
    Abstract: The present invention relates to an acryl-based film that includes a first primer layer including a water-dispersible polyurethane resin formed on one surface, and a second primer layer including at least one or more types of a water-dispersible polyester-based resin, a water-dispersible acryl-based resin and a water-dispersible polyester acryl-based resin formed on the opposite surface, and a polarizing plate including the same.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: April 17, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Yirang Lim, Hwa Sub Shim, Kyoung Won Kim, Sung Hyun Jeon, Jun Wuk Park
  • Patent number: 9715045
    Abstract: The present invention relates to an optical film including an acryl-based film; and a functional coating layer formed on at least one surface of the acryl-based film, containing a conductive material and a water-dispersible resin and having surface resistance of 109 W/Sq to 1013 W/Sq.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: July 25, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Kyoung-Won Kim, Nam-Jeong Lee, Hwa-Sub Shim, Jun-Wuk Park, Yi-Rang Lim
  • Publication number: 20170101517
    Abstract: Disclosed are an optical film, including: a transparent film, and a coating layer on at least one surface of the transparent film, in which the coating layer is formed using a composition including a polymer resin, a dihydrazide-based crosslinking agent, and water-dispersible fine particles, and a polarizing plate including the same.
    Type: Application
    Filed: September 22, 2015
    Publication date: April 13, 2017
    Inventors: Yirang LIM, Hwa Sub SHIM, Jun Wuk PARK, Sung Hyun JEON, Kyoung Won KIM
  • Patent number: 9523792
    Abstract: A double-sided polarizer includes a polarizing film, a first adhesive layer formed on one surface of the polarizing film, a second adhesive layer formed on the other surface of the polarizing film, a first transparent film formed on the first adhesive layer, and a second transparent film formed on the second adhesive layer, wherein the first adhesive layer and the second adhesive layer are formed of an active energy line-curable adhesive and the first adhesive layer is 0.1 ?m to 3 ?m thick, and there is also provided an optical device including the double-sided polarizer.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: December 20, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Eun-Mi Seo, Hwa-Sub Shim, Jee-Hyon Min, Nam-Jeong Lee, Kyun-Il Rah, Jun-Wuk Park, Eun Soo Huh, Yi-Rang Lim
  • Patent number: 9487685
    Abstract: The present invention relates to an adhesive composition including 100 parts by weight of a first epoxy compound having a glass transition temperature of a homopolymer of not less than 120° C., 30 parts by weight to 100 parts by weight of a second epoxy compound having a glass transition temperature of a homopolymer of not more than 60° C., and 0.5 parts by weight to 20 parts by weight of a cationic photopolymerization initiator, and a polarizing plate using the same.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: November 8, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Eun-Mi Seo, Eun-Soo Huh, Nam-Jeong Lee, Hwa-Sub Shim, Kyun-II Rah, Jun-Wuk Park, Jee-Hyon Min, Yi-Rang Lim
  • Patent number: 9477014
    Abstract: The present invention relates to a protective film including: a transparent film, a coating layer formed on one surface of the transparent film, and a primer layer formed on the other surface of the transparent film, wherein the coating layer is formed using a coating composition including a first polymer resin, a first cross-linking agent and first water dispersible particles, and the primer layer is formed using a primer composition including a second polymer resin and second water dispersible particles, as well as including a second cross-linking agent in an amount, including 0% by weight, and lower than that of the first cross-linking agent, and a polarizing plate including the same.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: October 25, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Yi-Rang Lim, Hwa-Sub Shim, Jun-Wuk Park, Nam-Jeong Lee, Kyoung-Won Kim
  • Patent number: 9448347
    Abstract: The present disclosure relates to a polarizing plate including: a polarizer; an acrylic film attached to at least one surface of the polarizer via an adhesive layer; and a primer layer formed on at least one surface of the acrylic film, wherein the primer layer is formed of a primer composition including a water dispersible resin containing a sulfonic acid group, water dispersible particles, and water, and a weight ratio of the water dispersible resin to the water dispersible particles is in a range of 1:0.01 to 5:1.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: September 20, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Hwa-Sub Shim, Yi-Rang Lim, Jun-Wuk Park, Kyoung-Won Kim, Sung-Hyun Jeon
  • Publication number: 20160245958
    Abstract: The present invention relates to an acryl-based film that includes a first primer layer including a water-dispersible polyurethane resin formed on one surface, and a second primer layer including at least one or more types of a water-dispersible polyester-based resin, a water-dispersible acryl-based resin and a water-dispersible polyester acryl-based resin formed on the opposite surface, and a polarizing plate including the same.
    Type: Application
    Filed: September 23, 2014
    Publication date: August 25, 2016
    Inventors: Yirang LIM, Hwa Sub SHIM, Kyoung Won KIM, Sung Hyun JEON, Jun Wuk PARK
  • Publication number: 20160238744
    Abstract: The present invention relates to an optical film including an acryl-based film; and a functional coating layer formed on at least one surface of the acryl-based film, containing a conductive material and a water-dispersible resin and having surface resistance of 109 W/Sq to 1019 W/Sq.
    Type: Application
    Filed: September 26, 2014
    Publication date: August 18, 2016
    Inventors: Kyoung-Won KIM, Nam-Jeong LEE, Hwa-Sub SHIM, Jun-Wuk PARK, Yi-Rang LIM
  • Publication number: 20160237284
    Abstract: The present invention relates to an optical film including: a base material film; and a primer layer containing a polyester resin and water-dispersible minute particulates on at least one surface of the base material film and having a refractive index difference of 0.03 or less from the base material film, in which the polyester resin includes polyester glycol formed by a reaction of polybasic acid including an aromatic carboxylic acid compound and an aliphatic carboxylic acid compound at a mole ratio of 1:9 to 9:1 and polyol, adhesion force between the optical film and a functional coating layer is excellent, and a rainbow phenomenon is reduced and an optical property is excellent due to a small refractive index difference.
    Type: Application
    Filed: September 30, 2014
    Publication date: August 18, 2016
    Applicant: LG CHEM, LTD.
    Inventors: Hwa-Sub SHIM, Jun-Wuk PARK, Yi-Rang LIM, Kyoung-Won KIM
  • Publication number: 20160231466
    Abstract: The present invention relates to an optical film including a transparent film, and a coating layer on at least one surface of the transparent film, wherein the coating layer is formed using a water-dispersible coating composition comprising a polymer resin including a hydroxyl group; at least one cross-linking agent selected from the group consisting of a titanate-based cross-linking agent and a zirconate-based cross-linking agent; and water-dispersible fine particles, and a polarizing plate including the same.
    Type: Application
    Filed: September 23, 2014
    Publication date: August 11, 2016
    Inventors: Yirang LIM, Nam Jeong LEE, Hwa Sub SHIM, Jun Wuk PARK
  • Publication number: 20160231484
    Abstract: The present disclosure relates to a polarizing plate including: a polarizer; an acrylic film attached to at least one surface of the polarizer via an adhesive layer; and a primer layer formed on at least one surface of the acrylic film, wherein the primer layer is formed of a primer composition including a water dispersible resin containing a sulfonic acid group, water dispersible particles, and water, and a weight ratio of the water dispersible resin to the water dispersible particles is in a range of 1:0.01 to 5:1.
    Type: Application
    Filed: May 13, 2014
    Publication date: August 11, 2016
    Inventors: Hwa-Sub SHIM, Yi-Rang LIM, Jun-Wuk PARK, Kyoung-Won KIM, Sung-Hyun JEON
  • Patent number: 9110244
    Abstract: There is provided a polyester-based primer composition including 100 parts by weight of a polyester resin, 1 to 20 parts by weight of water-dispersible particles, and water as a remainder. Since a polyester-based primer composition of the present disclosure is excellent in water resistance and solvent resistance differently from a urethane primer composition, the polyester-based primer composition may obtain sufficient adhesive strength between a protection film and a functional coating layer even without assistance from additives such as a cross-linking agent, and may retain stable adhesive strength for a long period of time.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: August 18, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Hwa-Sub Shim, Yi-Rang Lim, Jun-Wuk Park, Kyoung-Won Kim, Sung-Hyun Jeon
  • Publication number: 20150160378
    Abstract: The present invention relates to a protective film including: a transparent film, a coating layer formed on one surface of the transparent film, and a primer layer formed on the other surface of the transparent film, wherein the coating layer is formed using a coating composition including a first polymer resin, a first cross-linking agent and first water dispersible particles, and the primer layer is formed using a primer composition including a second polymer resin and second water dispersible particles, as well as including a second cross-linking agent in an amount, including 0% by weight, and lower than that of the first cross-linking agent, and a polarizing plate including the same.
    Type: Application
    Filed: May 31, 2013
    Publication date: June 11, 2015
    Inventors: Yi-Rang Lim, Hwa-Sub Shim, Jun-Wuk Park, Nam-Jeong Lee, Kyoung-Won Kim
  • Patent number: 8968862
    Abstract: A double-sided polarizer includes a polarizing film, a first adhesive layer formed on one surface of the polarizing film, a second adhesive layer formed on the other surface of the polarizing film, a first transparent film formed on the first adhesive layer, and a second transparent film formed on the second adhesive layer, wherein the first adhesive layer and the second adhesive layer are formed of an active energy line-curable adhesive and the first adhesive layer is 0.1 ?m to 3 ?m thick, and there is also provided an optical device including the double-sided polarizer.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: March 3, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Eun-Mi Seo, Hwa-Sub Shim, Jee-Hyon Min, Nam-Jeong Lee, Kyun-Il Rah, Jun-Wuk Park, Eun-Soo Huh, Yi-Rang Lim
  • Publication number: 20140333999
    Abstract: There is provided a polyester-based primer composition including 100 parts by weight of a polyester resin, 1 to 20 parts by weight of water-dispersible particles, and water as a remainder. Since a polyester-based primer composition of the present disclosure is excellent in water resistance and solvent resistance differently from a urethane primer composition, the polyester-based primer composition may obtain sufficient adhesive strength between a protection film and a functional coating layer even without assistance from additives such as a cross-linking agent, and may retain stable adhesive strength for a long period of time.
    Type: Application
    Filed: December 20, 2013
    Publication date: November 13, 2014
    Inventors: Hwa-Sub Shim, Yi-Rang Lim, Jun-Wuk Park, Kyoung-Won Kim, Sung-Hyun Jeon