Patents by Inventor Byeong Ahn

Byeong Ahn 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: 10180236
    Abstract: The invention described in the present specification relates to a color conversion film including: a substrate; a color conversion layer provided on the substrate; and a pressure-sensitive adhesive or adhesive layer provided on the color conversion layer, in which the color conversion layer includes an organic fluorescent material dispersed therein and the pressure-sensitive adhesive or adhesive layer includes light diffusion particles dispersed therein, a backlight unit including the same, and a display device including the same.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: January 15, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Joo Yeon Seo, Byeong In Ahn, Dong Mok Shin, Nari Kim, Seijung Park, Taesung Park, Ji Ho Kim, Hye Mi Oh
  • Patent number: 10131836
    Abstract: The invention described in the present specification relates to a color conversion film including a resin matrix; and an organic fluorescent substance, wherein the organic fluorescent substance includes a first fluorescent substance and a second fluorescent substance, and the first fluorescent substance has a light emission peak with FWHM of 60 nm or less and a Stokes shift of 30 nm or less 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 back light unit including the color conversion film.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: November 20, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Dong Mok Shin, Byeong In Ahn, Nari Kim, Hoyong Lee, Ji Ho Kim, Joo Yeon Seo
  • Publication number: 20170313916
    Abstract: The present invention relates to an adhesive resin composition including a styrene-ethylene-butylene-styrene copolymer with a specific chemical structure, an epoxy resin, an acid anhydride compound, and a curing catalyst, an adhesive film obtained from the resin composition, and a flexible metal laminate including the adhesive film.
    Type: Application
    Filed: December 8, 2015
    Publication date: November 2, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Young Ji TAE, Young Seok PARK, Byeong In AHN
  • 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: 20170261673
    Abstract: The invention described in the present specification relates to a backlight unit including a light source including a light emission lamp emitting light including a 450 nm wavelength, and an inorganic fluorescent substance provided at least a part of inside or on a surface of the lamp and having a maximum light emission wavelength in a 510 nm to 560 nm range when irradiating light including a 450 nm wavelength; and a color conversion film including an organic fluorescent substance, and having a maximum light emission wavelength in a 610 nm to 660 nm range when irradiating light emitted from the light emission lamp or the inorganic fluorescent substance, and a display apparatus including the same.
    Type: Application
    Filed: February 1, 2016
    Publication date: September 14, 2017
    Inventors: Nari KIM, Byeong In AHN, Dong Mok SHIN, 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
  • Patent number: 9745468
    Abstract: The present invention relates to a polyurethane resin composition for a support pad including a polyurethane resin, a DMF solvent, an anionic surfactant, and polyethylene glycol (PEG), and a polyurethane support pad including the polyurethane resin composition for a support pad. According to the present invention, long and large pores may be uniformly formed therein, and thus a support pad having an excellent compression rate and compression recovery rate may be provided.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: August 29, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Dong-Mok Shin, Na-Ri Kim, Byeong-In Ahn, Sang-Soon Choi, Young-Ji Tae, Keong-Yeon Yoon
  • Publication number: 20170159910
    Abstract: The invention described in the present specification relates to a color conversion film including: a substrate; a color conversion layer provided on the substrate; and a pressure-sensitive adhesive or adhesive layer provided on the color conversion layer, in which the color conversion layer includes an organic fluorescent material dispersed therein and the pressure-sensitive adhesive or adhesive layer includes light diffusion particles dispersed therein, a backlight unit including the same, and a display device including the same.
    Type: Application
    Filed: December 2, 2016
    Publication date: June 8, 2017
    Inventors: Joo Yeon SEO, Byeong In Ahn, Dong Mok Shin, Nari Kim, Seijing Park, Taesung Park, Ji Ho Kim, Hye Mi Oh
  • Publication number: 20160230960
    Abstract: The invention described in the present specification relates to a color conversion film including a color conversion layer 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; and a sticking sheet provided on at least one surface of the color conversion layer, and including a cured material of a radical curable component, a method for manufacturing the same, and a back light unit.
    Type: Application
    Filed: February 3, 2016
    Publication date: August 11, 2016
    Inventors: Joon Yeon SEO, Byeong In Ahn, Dong Mok Shin, Nari Kim, Kyung Yul Bae, Ji Ho Kim
  • Publication number: 20160230961
    Abstract: The invention described in the present specification relates to a color conversion film including a color conversion layer 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; and an adhesive layer provided on at least one surface of the color conversion layer, and including a curing material of a radical polymerizable compound having a molecular weight of 300 or higher prior to curing, and a back light unit and a display apparatus including the same.
    Type: Application
    Filed: February 4, 2016
    Publication date: August 11, 2016
    Inventors: Joo Yeon Seo, Kwang Seung Park, Byeong In Ahn, Dong Mok Shin, Nari Kim, Ji Ho Kim
  • Publication number: 20160223728
    Abstract: The invention described in the present specification relates to a color conversion film including a resin matrix; and an organic fluorescent substance, wherein the color conversion film has a light emission peak with FWHM of 70 nm or less when irradiating light having a light emission peak of a 450 nm wavelength, a FWHM of 40 nm or less and monomodal light emission intensity distribution, and a ratio of light emission intensity at 600 nm to light emission intensity at a maximum light emission wavelength is 1:3 or higher, a method for preparing the same, and a back light unit including the color conversion film.
    Type: Application
    Filed: January 28, 2016
    Publication date: August 4, 2016
    Inventors: Dong Mok SHIN, Byeong In AHN, Nari KIM, Ji Ho KIM, Joo Yeon SEO
  • Publication number: 20160223162
    Abstract: The invention described in the present specification relates to a color conversion film including a resin matrix; and an organic fluorescent substance, wherein the organic fluorescent substance includes a first fluorescent substance and a second fluorescent substance, and the first fluorescent substance has a light emission peak with FWHM of 60 nm or less and a Stokes shift of 30 nm or less 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 back light unit including the color conversion film.
    Type: Application
    Filed: January 29, 2016
    Publication date: August 4, 2016
    Inventors: Dong Mok SHIN, Byeong In AHN, Nari KIM, Hoyong LEE, Ji Ho KIM, Joo Yeon SEO
  • Patent number: 9133299
    Abstract: The present invention relates to a polyurethane resin composition including a first polyurethane resin and a second polyurethane resin that are different from each other in their compositions, an organic solvent, and a surfactant, and a polyurethane mounting pad manufactured from the resin composition.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: September 15, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Sang-Soon Choi, Young-Ji Tae, Dong-Mok Shin, Keong-Yeon Yoon, Na-Ri Kim, Byeong-In Ahn
  • Patent number: 8920220
    Abstract: This disclosure relates to a polishing pad for chemical mechanical polishing, having a shape where 3 or more semi-oval or semicircular curves that connect 2 valleys neighboring on the plane are connected, and including 2 or more modified patterns that are formed to a determined thickness on the polishing pad, wherein a peak of one modified pattern and a valley of another modified pattern neighboring thereto are sequentially located on the same line. The polishing pad may uniformly disperse slurry over the whole area during a polishing process to provide improved polishing uniformity, and appropriately control residence time of the slurry to increase polishing rate.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: December 30, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Ah-Ram Kim, Byeong-In Ahn, Dong-Mok Shin
  • Publication number: 20140206784
    Abstract: The present invention relates to a polyurethane resin composition for a support pad including a polyurethane resin, a DMF solvent, an anionic surfactant, and polyethylene glycol (PEG), and a polyurethane support pad including the polyurethane resin composition for a support pad. According to the present invention, long and large pores may be uniformly formed therein, and thus a support pad having an excellent compression rate and compression recovery rate may be provided.
    Type: Application
    Filed: August 17, 2012
    Publication date: July 24, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Dong-Mok Shin, Na-Ri Kim, Byeong-In Ahn, Sang-Soon Choi, Young-Ji Tae, Keong-Yeon Yoon
  • Patent number: 8617645
    Abstract: The present invention provides a multi-component composite film comprising a) polymer support layer, and b) porous gellable polymer layer which is formed on one side or both sides of the support layer of a), wherein the support film of a) and the gellable polymer layer of b) are unified without the interface, a method for preparing the same, and a polymer electrolyte system applied the same.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: December 31, 2013
    Assignee: LG Chem. Ltd.
    Inventors: Seung-Jin Lee, Hyang-Mok Lee, Soon-Ho Ahn, Jin-Yeon Cho, Hyun-Hang Yong, Hyung-Keun Lee, Sang-Young Lee, Heon-Sik Song, Soon-Yong Park, You-Jin Kyung, Byeong-In Ahn
  • Patent number: 8481149
    Abstract: This disclosure relates to a polyurethane resin composition for a mounting pad, including a polyurethane resin, C9-15 alkyl benzene sulfonic acid or a salt thereof, and a DMF solvent, and a polyurethane mounting pad using the same, whereby long and large pores may be uniformly formed thereinside to provide a mounting pad having low hardness, excellent compressibility, and a high compression modulus.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: July 9, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Na-Ri Kim, Dong-Mok Shin, Byeong-In Ahn, Sang-Soon Choi, Keong-Yeon Yoon
  • Publication number: 20130018118
    Abstract: The present invention relates to a polyurethane resin composition including a first polyurethane resin and a second polyurethane resin that are different from each other in their compositions, an organic solvent, and a surfactant, and a polyurethane mounting pad manufactured from the resin composition.
    Type: Application
    Filed: July 16, 2012
    Publication date: January 17, 2013
    Applicant: LG CHEM, LTD.
    Inventors: Sang-Soon CHOI, Young-Ji TAE, Dong-Mok SHIN, Keong-Yeon YOON, Na-Ri KIM, Byeong-In AHN
  • Publication number: 20120085038
    Abstract: The present invention provides a method for producing a porous sheet, including the steps of a) producing a polymer resin sheet containing an object to be processed by supercritical fluid extraction which is dissolved in supercritical fluid; and b) injecting the supercritical fluid into the polymer resin sheet to extract the object to be processed by supercritical fluid extraction that is contained in the polymer resin sheet, thereby forming pores in the polymer resin sheet, and a porous sheet produced by the same.
    Type: Application
    Filed: June 10, 2010
    Publication date: April 12, 2012
    Applicant: LG CHEM, LTD.
    Inventors: Seong-Uk Jeong, Byeong-In Ahn, Young-Ji Tae, Keong-Yeon Yoon
  • Publication number: 20120071068
    Abstract: This disclosure relates to a polishing pad for chemical mechanical polishing, having a shape where 3 or more semi-oval or semicircular curves that connect 2 valleys neighboring on the plane are connected, and including 2 or more modified patterns that are formed to a determined thickness on the polishing pad, wherein a peak of one modified pattern and a valley of another modified pattern neighboring thereto are sequentially located on the same line. The polishing pad may uniformly disperse slurry over the whole area during a polishing process to provide improved polishing uniformity, and appropriately control residence time of the slurry to increase polishing rate.
    Type: Application
    Filed: September 15, 2011
    Publication date: March 22, 2012
    Applicant: LG CHEM, LTD.
    Inventors: Ah-Ram KIM, Byeong-In AHN, Dong-Mok SHIN