Patents by Inventor Kyung Il SUL

Kyung Il SUL 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: 11686977
    Abstract: Disclosed herein are a retardation film for IPS mode, a polarizing plate including the same, and a liquid crystal display including the same. The retardation film for IPS mode has an out-of-plane retardation at a wavelength of 450 nm (Rth (450) of about ?80 nm to 0 nm, an out-of-plane retardation at a wavelength of 550 nm (Rth (550) of about ?60 nm to 10 nm, an out-of-plane retardation at a wavelength of 650 nm (Rth (650) of about ?60 nm to 10 nm, and an in-plane retardation (Re) at a wavelength of 550 nm of about 0 nm to 10 nm.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: June 27, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang Hum Lee, Kyung Il Sul, Jung Hun You
  • Publication number: 20200285094
    Abstract: Disclosed herein are a retardation film for IPS mode, a polarizing plate including the same, and a liquid crystal display including the same. The retardation film for IPS mode has an out-of-plane retardation at a wavelength of 450 nm (Rth (450) of about ?80 nm to 0 nm, an out-of-plane retardation at a wavelength of 550 nm (Rth (550) of about ?60 nm to 10 nm, an out-of-plane retardation at a wavelength of 650 nm (Rth (650) of about ?60 nm to 10 nm, and an in-plane retardation (Re) at a wavelength of 550 nm of about 0 nm to 10 nm.
    Type: Application
    Filed: November 16, 2018
    Publication date: September 10, 2020
    Inventors: Sang Hum LEE, Kyung Il SUL, Jung Hun YOU
  • Patent number: 9540549
    Abstract: A semiconductor device bonded by an anisotropic conductive film and an anisotropic conductive film composition, the anisotropic conductive film including a reactive monomer having an epoxy equivalent weight of about 120 to about 180 g/eq; a hydrogenated epoxy resin; and a sulfonium cation curing catalyst.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: January 10, 2017
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Kyung Il Sul, Dong Seon Uh, Nam Ju Kim, Kyoung Soo Park, Young Woo Park, Joon Mo Seo, Arum Yu, Hyun Min Choi
  • Patent number: 9534154
    Abstract: An electronic device includes an anisotropic conductive adhesive film as a connection material, wherein the anisotropic conductive adhesive film has a flowability of 50% or more after preliminary pressing at 80° C. and 1 MPa for 1 second and final pressing at 180° C. and 3 MPa for 5 seconds, and a connection resistance increment greater than 0% but not greater than 25%, as calculated by Expression 1: Connection resistance increment (%)=|(A?B)/A|×100??(Expression 1) where A is a connection resistance measured after preliminary pressing at 80° C. and 1 MPa for 1 second and final pressing at 180° C. and 3 MPa for 5 seconds, and B is a connection resistance measured after reliability evaluation at a temperature of 85° C. and a humidity of 85% for 250 hours following preliminary pressing and final pressing.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: January 3, 2017
    Assignee: Cheil Industries, Inc.
    Inventors: Jin Young Seo, Hyun Wook Kim, Hyun Hee Namkung, Kyung Il Sul, Dong Seon Uh, Kwang Jin Jung, Jae Sun Han
  • Patent number: 9390831
    Abstract: An electronic device includes a connection material formed from an adhesive composition that includes: a polymer resin; a cationic polymerization catalyst represented by Formula 1; and an organic base, where, in Formula 1, R1 may be selected from the group of hydrogen, C1-C6 alkyl, C6-C14 aryl, —C(?O)R4, —C(?O)OR5, and —C(?O)NHR6 (in which R4, R5, and R6 may each independently be selected from C1-C6 alkyl and C6-C14 aryl), R2 may be C1-C6 alkyl, and R3 may be selected from the group of a nitrobenzyl group, a dinitrobenzyl group, a trinitrobenzyl group, a benzyl group, a C1-C6 alkyl-substituted benzyl group, and a naphthylmethyl group.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: July 12, 2016
    Assignee: CHEIL INDUSTRIES INC.
    Inventors: Kyoung Soo Park, Nam Ju Kim, Young Woo Park, Joon Mo Seo, Kyung Il Sul, Dong Seon Uh, Arum Yu, Hyun Min Choi, Jae Sun Han
  • Patent number: 9048240
    Abstract: An electronic device includes an anisotropic conductive film as a connection material, the anisotropic conductive film being formed from an anisotropic conductive film-forming composition. The anisotropic conductive film-forming composition includes a polycyclic aromatic ring-containing epoxy resin, a fluorene epoxy resin, nano silica and conductive particles.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: June 2, 2015
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Young Woo Park, Nam Ju Kim, Kyoung Soo Park, Joon Mo Seo, Kyung Il Sul, Dong Seon Uh, Arum Yu, Hyun Min Choi
  • Patent number: 8766443
    Abstract: An anisotropic conductive film composition for bonding an electronic device may include a hydrogenated bisphenol A epoxy monomer represented by Formula 1 or a hydrogenated bisphenol A epoxy oligomer represented by Formula 2: where n may be an integer from 1 to about 50.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: July 1, 2014
    Assignee: Cheil Industries, Inc.
    Inventors: Arum Yu, Nam Ju Kim, Kyoung Soo Park, Young Woo Park, Joon Mo Seo, Kyung Il Sul, Dong Seon Uh, Hyun Min Choi
  • Publication number: 20130161566
    Abstract: An electronic device includes an anisotropic conductive adhesive film as a connection material, wherein the anisotropic conductive adhesive film has a flowability of 50% or more after preliminary pressing at 80° C. and 1 MPa for 1 second and final pressing at 180° C. and 3 MPa for 5 seconds, and a connection resistance increment greater than 0% but not greater than 25%, as calculated by Expression 1: Connection resistance increment (%)=(A?B)/A×100??(Expression 1) where A is a connection resistance measured after preliminary pressing at 80° C. and 1 MPa for 1 second and final pressing at 180° C. and 3 MPa for 5 seconds, and B is a connection resistance measured after reliability evaluation at a temperature of 85° C. and a humidity of 85% for 250 hours following preliminary pressing and final pressing.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 27, 2013
    Inventors: Jin Young SEO, Hyun Wook KIM, Hyun Hee NAMKUNG, Kyung Il SUL, Dong Seon UH, Kwang Jin JUNG, Jae Sun HAN
  • Publication number: 20130154093
    Abstract: An anisotropic conductive film composition for bonding an electronic device may include a hydrogenated bisphenol A epoxy monomer represented by Formula 1 or a hydrogenated bisphenol A epoxy oligomer represented by Formula 2: where n may be an integer from 1 to about 50.
    Type: Application
    Filed: December 11, 2012
    Publication date: June 20, 2013
    Inventors: Arum YU, Nam Ju KIM, Kyoung Soo PARK, Young Woo PARK, Joon Mo SEO, Kyung Il SUL, Dong Seon UH, Hyun Min CHOI
  • Publication number: 20130154129
    Abstract: A semiconductor device bonded by an anisotropic conductive film and an anisotropic conductive film composition, the anisotropic conductive film including a reactive monomer having an epoxy equivalent weight of about 120 to about 180 g/eq; a hydrogenated epoxy resin; and a sulfonium cation curing catalyst.
    Type: Application
    Filed: December 18, 2012
    Publication date: June 20, 2013
    Inventors: Kyung Il SUL, Dong Seon UH, Nam Ju KIM, Kyoung Soo PARK, Young Woo PARK, Joon Mo SEO, Arum YU, Hyun Min CHOI
  • Publication number: 20130126788
    Abstract: An electronic device includes a connection material formed from an adhesive composition that includes: a polymer resin; a cationic polymerization catalyst represented by Formula 1; and an organic base, where, in Formula 1, R1 may be selected from the group of hydrogen, C1-C6 alkyl, C6-C14 aryl, —C(?O)R4, —C(?O)OR5, and —C(?O)NHR6 (in which R4, R5, and R6 may each independently be selected from C1-C6 alkyl and C6-C14 aryl), R2 may be C1-C6 alkyl, and R3 may be selected from the group of a nitrobenzyl group, a dinitrobenzyl group, a trinitrobenzyl group, a benzyl group, a C1-C6 alkyl-substituted benzyl group, and a naphthylmethyl group.
    Type: Application
    Filed: November 19, 2012
    Publication date: May 23, 2013
    Inventors: Kyoung Soo PARK, Nam Joo KIM, Young Woo PARK, Joon Mo SEO, Kyung Il SUL, Dong Seon UH, Arum YU, Hyun Min CHOI, Jae Sun HAN