Patents by Inventor Jong Hyun Jung

Jong Hyun Jung 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: 9643387
    Abstract: Provided is a stretched laminate for manufacturing a thin polarizer while increasing the degree of orientation of a polyvinyl alcohol-iodine complex without problems such as breakage. In addition, there are provided a method of manufacturing a thin polarizer having superior optical characteristics by using the stretched laminate, a thin polarizer manufactured by the method, and a polarizing plate including the thin polarizer.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: May 9, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Sung Hyun Nam, Jong-Hyun Jung, Kyun-Il Rah, Hye-Min Yu, Se-Woo Yang, Yoon-Tae Hwang
  • Patent number: 9645293
    Abstract: A method of manufacturing a thin film polarizer includes forming a film laminate by allowing a non-oriented polyvinyl alcohol-based film to be bonded to and sandwiched between two or more non-oriented polymer films using attractive force or an adhesive layer, orienting the film laminate so that the polyvinyl alcohol-based film has a thickness of 10 ?m or less, and separating the polymer films and the polyvinyl alcohol-based film of the oriented film laminate from each other.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: May 9, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Sung Hyun Nam, Jong-Hyun Jung, Kyun-Il Rah, Hye-Min Yu
  • Patent number: 9612376
    Abstract: Provided are a method for preparing a thin polarizer, including forming a film laminate by bonding a non-stretched polyvinyl alcohol-based film having a thickness of 10 to 60 ?m to at least one surface of a non-stretched base film using an adhesive including an amine-based metal compound crosslinking agent and a polyvinyl alcohol-based resin containing an acetoacetyl group, and stretching the film laminate so as to allow the polyvinyl alcohol-based film to have a thickness of 10 ?m or less, and a thin polarizer manufactured through the same.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: April 4, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Hyun Nam, Jong-Hyun Jung, Kyun-II Rah, Hye-Min Yu, Ji-Young Kim
  • Patent number: 9581730
    Abstract: There are provided a substrate film, a laminate, and method of manufacturing a polarizing film. The present application provides a substrate film capable of effectively manufacturing a polarizing film having a thickness of about 10 ?m or less, about 8 ?m or less, about 7 ?m or less, about 6 ?m or less, or about 5 ?m or less and having an excellent function such as polarization performance, a laminate, and a method of manufacturing the same. According to the invention, it is possible to prevent tearing, curling, or the like from occurring in the elongation process and manufacture a polarizing film by easily elongating a polarization material such as a PVA-based resin.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: February 28, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Se Woo Yang, Sung Hyun Nam, Kyun Il Rah, Yoon Tae Hwang, Jong Hyun Jung, Hye Min Yu, Ji Young Hwang, Eun Suk Park
  • Publication number: 20170003427
    Abstract: The present invention relates to a method of manufacturing a thin polarizer, including: forming a film laminate by attaching a polyvinyl alcohol-based film to at least one surface of a polymer film by using attraction force or an adhesive; swelling the film laminate so that a degree of swelling of the polyvinyl alcohol-based film is 0.36 to 0.44; dyeing at least one of iodine and a dichromatic dye on the film laminate; and stretching the film laminate.
    Type: Application
    Filed: September 23, 2014
    Publication date: January 5, 2017
    Inventors: Jong-Hyun JUNG, Sung-Hyun NAM, Kyun-Il RAH
  • Publication number: 20160243774
    Abstract: There is provided a stretched laminate having superior optical characteristics, easily separable from a base film, and usable for manufacturing a thin polarizer. In addition, there are provided a method of manufacturing a thin polarizer having superior optical characteristics by using the stretched laminate, a thin polarizer manufactured by the method, and a polarizing plate including the thin polarizer.
    Type: Application
    Filed: June 16, 2014
    Publication date: August 25, 2016
    Inventors: Sung-Hyun NAM, Jong-Hyun JUNG, Kyun-II RAH, Hye-Min YU
  • Publication number: 20160195641
    Abstract: There are provided a substrate film, a laminate, and method of manufacturing a polarizing film. The present application provides a substrate film capable of effectively manufacturing a polarizing film having a thickness of about 10 ?m or less, about 8 ?m or less, about 7 ?m or less, about 6 ?m or less, or about 5 ?m or less and having an excellent function such as polarization performance, a laminate, and a method of manufacturing the same. According to the invention, it is possible to prevent tearing, curling, or the like from occurring in the elongation process and manufacture a polarizing film by easily elongating a polarization material such as a PVA-based resin.
    Type: Application
    Filed: June 19, 2014
    Publication date: July 7, 2016
    Applicant: LG Chem, Ltd.
    Inventors: Se Woo Yang, Sung Hyun Nam, Kyun Il Rah, Yoon Tae Hwang, Jong Hyun Jung, Hye Min Yu, Ji Young Hwang, Eun Suk Park
  • Publication number: 20160103259
    Abstract: A method of manufacturing a thin film polarizer includes forming a film laminate by allowing a non-oriented polyvinyl alcohol-based film to be bonded to and sandwiched between two or more non-oriented polymer films using attractive force or an adhesive layer, orienting the film laminate so that the polyvinyl alcohol-based film has a thickness of 10 ?m or less, and separating the polymer films and the polyvinyl alcohol-based film of the oriented film laminate from each other.
    Type: Application
    Filed: June 13, 2014
    Publication date: April 14, 2016
    Inventors: Sung Hyun NAM, Jong-Hyun JUNG, Kyun-Il RAH, Hye-Min YU
  • Publication number: 20160103260
    Abstract: There are provided a thin film polarizer having superior optical properties and a method of manufacturing the same. The thin film polarizer includes: forming a film laminate by attaching a non-stretched polyvinyl alcohol (PVA)-based film to at least one surface of a thermoplastic polyurethane film, using attractive force therebetween or using an adhesive; stretching the film laminate at a temperature of 45° C. to 55° C.; and separating the PVA-based film from the thermoplastic polyurethane film.
    Type: Application
    Filed: June 12, 2014
    Publication date: April 14, 2016
    Inventors: Sung-Hyun NAM, Jong-Hyun JUNG, Kyun-Il RAH, Hye-Min YU
  • Patent number: 9304239
    Abstract: The present disclosure relates to a method for preparing a thin polarizer, and a thin polarizer prepared using the same, the method including forming a film laminate by attaching a non-stretched polyvinyl alcohol (PVA) film having a thickness of 10 to 60 ?m to at least one surface of a non-stretched base film, using attractive force therebetween; and stretching the film laminate such that the thickness of the PVA film is 10 ?m or less.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: April 5, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Hyun Nam, Jun-Geun Um, Kyun-Il Rah, Jong-Hyun Jung, Hye-Min Yu, Nam-Jeong Lee, Sei-Jung Park
  • Publication number: 20160085005
    Abstract: There is provided a stretched laminate formed by stretching a laminate including: a non-stretched thermoplastic polyurethane film; and a non-stretched polyvinyl alcohol-based film attached to at least one surface of the thermoplastic polyurethane film, wherein the polyvinyl alcohol-based film has a thickness of 10 ?m or less after stretching. In addition, there are provided a method of manufacturing a thin polarizer using the stretched laminate, a thin polarizer manufacturing by the method, and a polarizing plate including the thin polarizer.
    Type: Application
    Filed: June 16, 2014
    Publication date: March 24, 2016
    Inventors: Sung-Hyun NAM, Jong-Hyun JUNG, Kyun-Il RAH, Hye-Min YU
  • Publication number: 20160084993
    Abstract: There is provided a method for preparing a polarizer including preparing a polyvinyl alcohol-based film exhausted with iodine or dichroic dye and then elongated, and adjusting the color of a polarizer by irradiating polarized ultraviolet light onto the elongated polyvinyl alcohol-based film.
    Type: Application
    Filed: June 12, 2014
    Publication date: March 24, 2016
    Inventors: Jong-Hyun JUNG, Sung-Hyun NAM, Kyun-Il RAH
  • Publication number: 20160084990
    Abstract: There is provided a stretched laminate formed by stretching a laminate including: a non-stretched high-density polyethylene film; and a non-stretched polyvinyl alcohol-based film attached to at least one surface of the high-density polyethylene film, wherein the polyvinyl alcohol-based film has a thickness of 10 ?m or less after stretching. In addition, there are provided a method of manufacturing a thin polarizer using the stretched laminate, a thin polarizer manufacturing by the method, and a polarizing plate including the thin polarizer.
    Type: Application
    Filed: June 16, 2014
    Publication date: March 24, 2016
    Inventors: Sung Hyun NAM, Jong-Hyun JUNG, Kyun-Il RAH, Hye-Min YU
  • Publication number: 20160070042
    Abstract: Provided are a base film, a laminate, and a method of forming a polarizing film. Particularly, a base film which may effectively form a polarizing film having a thickness of approximately 10, 8, 7, 6, or 5 ?m or less and exhibiting excellent functions such as polarizing performance, a laminate, and a method of forming the same are provided. Therefore, a polarizing film may be formed by preventing tearing or curling during an elongation process, and easily elongating a polarizing material such as a polyvinylalcohol-based resin.
    Type: Application
    Filed: June 19, 2014
    Publication date: March 10, 2016
    Applicant: LG Chem, Ltd.
    Inventors: Se Woo Yang, Sung Hyun Nam, Yoon Tae Hwang, Jong Hyun Jung, Suk Ky Chang, Kyun Il Rah
  • Publication number: 20160018577
    Abstract: There is provided a method of manufacturing a thin polarizing plate including: forming a film laminate by attaching a non-stretched polyvinyl alcohol (PVA)-based film to a non-stretched base film, using attractive force therebetween or using an adhesive; stretching the film laminate; attaching a first protective film to the PVA-based film of the stretched film laminate; and separating the PVA-based film having the first protective film attached thereto from the base film.
    Type: Application
    Filed: June 13, 2014
    Publication date: January 21, 2016
    Inventors: Sung-Hyun NAM, Kyun-IL RAH, Jong-Hyun JUNG, Hye-Min YU
  • Publication number: 20160016388
    Abstract: Provided is a stretched laminate for manufacturing a thin polarizer while increasing the degree of orientation of a polyvinyl alcohol-iodine complex without problems such as breakage. In addition, there are provided a method of manufacturing a thin polarizer having superior optical characteristics by using the stretched laminate, a thin polarizer manufactured by the method, and a polarizing plate including the thin polarizer.
    Type: Application
    Filed: June 16, 2014
    Publication date: January 21, 2016
    Inventors: Sung Hyun NAM, Jong-Hyun JUNG, Kyun-Il RAH, Hye-Min YU, Se-Woo YANG, Yoon-Tae HWANG
  • Publication number: 20150309234
    Abstract: The present disclosure relates to a method for preparing a thin polarizer, and a thin polarizer prepared using the same, the method including forming a film laminate by attaching a non-stretched polyvinyl alcohol (PVA) film having a thickness of 10 to 60 ?m to at least one surface of a non-stretched base film, using attractive force therebetween; and stretching the film laminate such that the thickness of the PVA film is 10 ?m or less.
    Type: Application
    Filed: November 14, 2013
    Publication date: October 29, 2015
    Inventors: Sung-Hyun NAM, Jun-Geun UM, Kyun-Il RAH, Jong-Hyun JUNG, Hye-Min YU, Nam-Jeong LEE, Sei-Jung PARK
  • Publication number: 20150301252
    Abstract: Provided are a method for preparing a thin polarizer, including forming a film laminate by bonding a non-stretched polyvinyl alcohol-based film having a thickness of 10 to 60 ?m to at least one surface of a non-stretched base film using an adhesive including an amine-based metal compound crosslinking agent and a polyvinyl alcohol-based resin containing an acetoacetyl group, and stretching the film laminate so as to allow the polyvinyl alcohol-based film to have a thickness of 10 ?m or less, and a thin polarizer manufactured through the same.
    Type: Application
    Filed: November 15, 2013
    Publication date: October 22, 2015
    Inventors: Sung-Hyun Nam, Jong-Hyun Jung, Kyun-Il Rah, Hye-Min Yu, Ji-Young Kim
  • Patent number: 9158051
    Abstract: A method of manufacturing a thin film polarizer includes forming a film laminate by alternately bonding two or more non-oriented polymer films and two or more non-oriented polyvinyl alcohol-based films to each other using attractive force or an adhesive layer, orienting the film laminate so that the polyvinyl alcohol-based film has a thickness of 10 ?m or less after the orienting of the film laminate, and separating the polymer films and the polyvinyl alcohol-based films of the oriented film laminate from each other.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: October 13, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Hyun Nam, Jong-Hyun Jung, Kyun-Il Rah, Hye-Min Yu
  • Publication number: 20150260894
    Abstract: A method of manufacturing a thin film polarizer includes forming a film laminate by alternately bonding two or more non-oriented polymer films and two or more non-oriented polyvinyl alcohol-based films to each other using attractive force or an adhesive layer, orienting the film laminate so that the polyvinyl alcohol-based film has a thickness of 10 ?m or less after the orienting of the film laminate, and separating the polymer films and the polyvinyl alcohol-based films of the oriented film laminate from each other.
    Type: Application
    Filed: June 12, 2014
    Publication date: September 17, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Sung-Hyun Nam, Jong-Hyun Jung, Kyun-ll Rah, Hye-Min Yu