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).

  • Publication number: 20190025487
    Abstract: The present application relates to a polarizing plate and a display device. In the present application, a polarizing plate can be provided, which can be applied to a display device comprising a highly reflective panel to solve disadvantages while maintaining advantages of the device. In the present application, a display device comprising the polarizing plate and the highly reflective panel can also be provided.
    Type: Application
    Filed: February 3, 2017
    Publication date: January 24, 2019
    Inventors: Sung Hyun NAM, Kyun Il RAH, Byung Sun LEE, Jong Hyun JUNG, Ji Young KIM
  • Patent number: 10114158
    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: Grant
    Filed: June 16, 2014
    Date of Patent: October 30, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Sung Hyun Nam, Jong-Hyun Jung, Kyun-Il Rah, Hye-Min Yu
  • Patent number: 10081143
    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: Grant
    Filed: June 16, 2014
    Date of Patent: September 25, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Hyun Nam, Jong-Hyun Jung, Kyun-II Rah, Hye-Min Yu
  • Patent number: 10048417
    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: Grant
    Filed: June 13, 2014
    Date of Patent: August 14, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Hyun Nam, Kyun-Il Rah, Jong-Hyun Jung, Hye-Min Yu
  • Patent number: 9915766
    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: Grant
    Filed: September 23, 2014
    Date of Patent: March 13, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Jong-Hyun Jung, Sung-Hyun Nam, Kyun-Il Rah
  • Publication number: 20180017724
    Abstract: The present application relates to a polarizer, a polarizing plate and a display device. The present application can provide a polarizer or a polarizing plate that is applied to various types of display devices, particularly to a display device having a highly reflective liquid crystal panel and that shows excellent characteristics. In addition, the present application can provide a display device including the polarizer or the polarizing plate.
    Type: Application
    Filed: February 1, 2016
    Publication date: January 18, 2018
    Inventors: Sung Hyun NAM, Kyung Ki HONG, Eung Jin JANG, Yeong Rae CHANG, Heon KIM, Kyun ll RAH, Jong Hyun JUNG, Byung Sun LEE, Hong Jun CHOI, Moon Soo PARK, Sun Kug KIM
  • Patent number: 9684104
    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: Grant
    Filed: June 12, 2014
    Date of Patent: June 20, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Hyun Nam, Jong-Hyun Jung, Kyun-Il Rah, Hye-Min Yu
  • Patent number: 9662865
    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 30, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Sung Hyun Nam, Jong-Hyun Jung, Kyun-Ii 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: 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: 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: 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