Patents by Inventor Du Hyeon SHIN

Du Hyeon SHIN 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: 11299669
    Abstract: The invention described in the present specification relates to a color conversion film including a resin matrix; and an organic fluorescent substance dispersed in the resin matrix, and absorbing blue or green light and emitting light having a wavelength different from the absorbing light, wherein the resin matrix includes a thermoplastic resin, and the color conversion film has a light emission peak with a FWHM of 60 nm or less, quantum efficiency of 80% or greater and an absorption coefficient of 30,000 M?1cm?1 or greater at a maximum absorption wavelength when irradiating light having a light emission peak at 450 nm, a FWHM of 40 nm or less and monomodal light emission intensity distribution, a method for preparing the same, and a backlight unit including the color conversion film.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: April 12, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Dong Mok Shin, Sehwan Son, Hoyong Lee, Byeong In Ahn, Du Hyeon Shin, Nari Kim, Ji Ho Kim, Joo Yeon Seo
  • Patent number: 10927293
    Abstract: Provided is a core-shell structured fluorescent complex comprising: a core portion comprising therein a polymer and a fluorescent material; and a shell portion including silica or alumina covering at least a part of a surface of the core portion, wherein the fluorescent material is included in greater than or equal to 0.01 parts by weight and less than or equal to 50 parts by weight with respect to 100 parts by weight of the polymer, and wherein the polymer is an ionic polymer or ionic polymer resin and has a weight average molecular weight of greater than or equal to 1,000 and less than or equal to 300,000, a light conversion film including the core-shell structured fluorescent complex, and an electronic device including the same.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: February 23, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Du Hyeon Shin, Youkyong Seo
  • Patent number: 10597581
    Abstract: The invention described in the present specification relates to a color conversion film including a resin matrix; and an organic fluorescent substance dispersed in the resin matrix, wherein the organic fluorescent substance includes a green fluorescent substance having a maximum light emission wavelength in a 510 nm to 560 nm range when irradiating light including a 450 nm wavelength, and a red fluorescent substance having a maximum light emission wavelength in a 600 nm to 660 nm range when irradiating light including a 450 nm wavelength, the green fluorescent substance and the red fluorescent substance have a molar ratio of 5:1 to 50:1, and the color conversion film has a light emission peak with a full width at half maximum (FWHM) of 50 nm or less in a 510 nm to 560 nm range and a light emission peak with a FWHM of 90 nm or less in a 600 nm to 660 nm range when irradiating light, a method for preparing the same, and a backlight unit including the color conversion film.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: March 24, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Nari Kim, Sehwan Son, Dong Mok Shin, Ji Ho Kim, Joo Yeon Seo, Byeong In Ahn, Du Hyeon Shin
  • Patent number: 10407614
    Abstract: The present application relates to a light conversion film in which one or more types of organic fluorescent dyes are dispersed in a polymer medium including one or more types of ionic polymers, and a light conversion device, a backlight unit and a display apparatus including the same.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: September 10, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Du Hyeon Shin, Youkyong Seo, Jungho Lim, Ji Ho Kim
  • Patent number: 10323104
    Abstract: The present specification relates to a dye complex, a light conversion film, and an electronic device including the same.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: June 18, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Du Hyeon Shin, Sehwan Son, Jungho Lim
  • Patent number: 10193029
    Abstract: This application relates to a light conversion device and a display device.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: January 29, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Du Hyeon Shin, Sehwan Son
  • Patent number: 10139676
    Abstract: The present application relates to a light conversion device, a backlight unit and a display apparatus.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: November 27, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Du Hyeon Shin, Dong Wook Lee, Jungho Lim, Soojung Yeo
  • Publication number: 20180134953
    Abstract: The present specification relates to a fluorescent complex, a light conversion film, and an electronic device including the same.
    Type: Application
    Filed: June 14, 2016
    Publication date: May 17, 2018
    Inventors: Du Hyeon SHIN, Youkyong SEO
  • Publication number: 20180016490
    Abstract: The present application relates to a light conversion film in which one or more types of organic fluorescent dyes are dispersed in a polymer medium including one or more types of ionic polymers, and a light conversion device, a backlight unit and a display apparatus including the same.
    Type: Application
    Filed: February 5, 2016
    Publication date: January 18, 2018
    Inventors: Du Hyeon SHIN, Youkyong SEO, Jungho LIM, Ji Ho KIM
  • Publication number: 20180004041
    Abstract: The present application relates to a light conversion device, a backlight unit and a display apparatus.
    Type: Application
    Filed: June 29, 2017
    Publication date: January 4, 2018
    Inventors: Du Hyeon SHIN, Dong Wook LEE, Jungho LIM, Soojung YEO
  • Publication number: 20170373229
    Abstract: This application relates to a light conversion device and a display device.
    Type: Application
    Filed: February 1, 2016
    Publication date: December 28, 2017
    Inventors: Du Hyeon SHIN, Sehwan SON
  • Publication number: 20170267921
    Abstract: The invention described in the present specification relates to a color conversion film including a resin matrix; and an organic fluorescent substance dispersed in the resin matrix, and absorbing blue or green light and emitting light having a wavelength different from the absorbing light, wherein the resin matrix includes a thermoplastic resin, and the color conversion film has a light emission peak with a FWHM of 60 nm or less, quantum efficiency of 80% or greater and an absorption coefficient of 30,000 M?1cm?1 or greater at a maximum absorption wavelength when irradiating light having a light emission peak at 450 nm, a FWHM of 40 nm or less and monomodal light emission intensity distribution, a method for preparing the same, and a backlight unit including the color conversion film.
    Type: Application
    Filed: February 1, 2016
    Publication date: September 21, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Dong Mok SHIN, Sehwan SON, Hoyong LEE, Byeong In AHN, Du Hyeon SHIN, Nari KIM, Ji Ho KIM, Joo Yeon SEO
  • Publication number: 20170247610
    Abstract: The invention described in the present specification relates to a color conversion film including a resin matrix; and an organic fluorescent substance dispersed in the resin matrix, wherein the organic fluorescent substance includes a green fluorescent substance having a maximum light emission wavelength in a 510 nm to 560 nm range when irradiating light including a 450 nm wavelength, and a red fluorescent substance having a maximum light emission wavelength in a 600 nm to 660 nm range when irradiating light including a 450 nm wavelength, the green fluorescent substance and the red fluorescent substance have a molar ratio of 5:1 to 50:1, and the color conversion film has a light emission peak with a full width at half maximum (FWHM) of 50 nm or less in a 510 nm to 560 nm range and a light emission peak with a FWHM of 90 nm or less in a 600 nm to 660 nm range when irradiating light, a method for preparing the same, and a backlight unit including the color conversion film.
    Type: Application
    Filed: February 1, 2016
    Publication date: August 31, 2017
    Inventors: Nari KIM, Sehwan SON, Dong Mok SHIN, Ji Ho KIM, Joo Yeon SEO, Byeong In AHN, Du Hyeon SHIN
  • Publication number: 20170137540
    Abstract: The present specification relates to a dye complex, a light conversion film, and an electronic device including the same.
    Type: Application
    Filed: July 31, 2015
    Publication date: May 18, 2017
    Inventors: Du Hyeon SHIN, Sehwan SON, Jungho LIM