Patents by Inventor Kyoung Ku Kang

Kyoung Ku Kang 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: 9087668
    Abstract: A thermal transfer film includes a base layer, and a light-to-heat conversion layer on the base layer, the light-to-heat conversion layer including at least one of particles selected from tungsten oxide particles and composite tungsten oxide particles, the particles being present in an amount of about 20 wt % to about 65 wt % in the light-to-heat conversion layer.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: July 21, 2015
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Si Kyun Park, Kyoung Ku Kang, Se Hyun Park, Jung Hyo Lee, Seong Heun Cho
  • Patent number: 9080058
    Abstract: A hard coating film that is curled to a height of less than 20 mm and has a pencil hardness of 3H or harder, the hard coating film including a hard coating agent that includes a hyperbranched (meth)acrylate oligomer having about 50 to about 200 (meth)acrylate groups, reactive nanoparticles, and a polyfunctional monomer.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: July 14, 2015
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Sung Chul Hwang, Kyoung Ku Kang, Byung Soo Kim, Do Young Kim
  • Publication number: 20150156866
    Abstract: A transparent conductor, a method of fabricating the same, and an optical display, the transparent conductor including a base layer; and a conductive layer on the base layer, the conductive layer including metal nanowires and a matrix, wherein the matrix is prepared from a matrix composition, the matrix composition including inorganic hollow particles, a fluorine-containing monomer, or a mixture thereof.
    Type: Application
    Filed: December 3, 2014
    Publication date: June 4, 2015
    Inventors: Dae Seob SHIM, Young Kwon KOO, Dong Myeong SHIN, Do Sang LEE, Oh Hyeon HWANG, Kyoung Ku KANG
  • Publication number: 20150153494
    Abstract: A composite optical sheet and a backlight unit, the composite optical sheet including a first optical sheet that includes a first optical pattern; a second optical sheet that includes a second optical pattern; a first adhesive layer between the first optical sheet and the second optical sheet; and a reflective polarizing film, wherein the second optical pattern is adhered to the first adhesive layer, the reflective polarizing film has a plurality of polymer layers that have different indexes of refraction, the plurality of polymer layers being alternately stacked one above another, and the reflective polarizing film is integrated with the first optical sheet, the second optical sheet, or the first adhesive layer.
    Type: Application
    Filed: October 20, 2014
    Publication date: June 4, 2015
    Inventors: Jin Woo KIM, Kyoung Ku KANG
  • Publication number: 20150123292
    Abstract: Provided is a semiconductor device, including an anisotropic conductive film connecting the semiconductor device, the anisotropic conductive film having a maximum stress of 0.4 kgf/mm2 or more; and a stress-strain curve having a slope (A) of greater than 0 and less than or equal to 0.2 kgf/(mm2·%) as represented by the following equation 1: slope(A)=(½Smax?S0)/x??(1), wherein: Smax=maximum stress, x=strain (%) at half (½) of the maximum stress, and S0=stress at a strain of 0.
    Type: Application
    Filed: October 29, 2014
    Publication date: May 7, 2015
    Inventors: Ji Yeon KIM, Kyoung Ku KANG, Kyoung Soo PARK, Byeong Geun SON, Young Ju SHIN, Kwang Jin JUNG, Ja Young HWANG
  • Publication number: 20150118508
    Abstract: A transparent conductor, a method for preparing the same, and an optical display including the same, the transparent conductor including a base layer; and a conductive layer on the base layer, the conductive layer including metal nanowires and a matrix, wherein the transparent conductor has a transmissive b* value of about 1.5 or less, and the matrix is prepared from a matrix composition including a tri-functional monomer and one of a penta-functional monomer or a hexa-functional monomer a base layer; and a conductive layer formed on the base layer and including metal nanowires and a matrix, wherein the transparent conductor has a transmissive b* value of about 1.5 or less, and the matrix is formed of a composition including a penta- or hexa-functional monomer and a tri-functional monomer.
    Type: Application
    Filed: October 24, 2014
    Publication date: April 30, 2015
    Inventors: Dong Myeong SHIN, Young Kwon KOO, Oh Hyeon HWANG, Kyoung Ku KANG, Do Young KIM, Dae Seob SHIM
  • Publication number: 20150111048
    Abstract: A transparent conductor includes a base layer, and a conductive layer on an upper surface of the base layer. The conductive layer includes metal nanowires and a matrix. The transparent conductor has a reflective a* value of about ?0.3 to about +0.3 and a reflective b* value of about ?2 to about 0. The transparent conductor exhibits good optical properties and prevents (or reduces) visibility of the etching pattern of the conductive layer.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 23, 2015
    Inventors: Do Young Kim, Young Kwon Koo, Dong Myeong Shin, Hyoung Tae Lim, Oh Hyeon Hwang, Kyoung Ku Kang
  • Publication number: 20150091192
    Abstract: A semiconductor device connected by an anisotropic conductive film including a first insulation layer, a conductive layer, and a second insulation layer one above another, wherein the conductive layer has an expansion length of 20% or less in a width direction thereof, and the second insulation layer has an expansion length of 50% or more in a width direction thereof, the expansion length is calculated according to Equation 1, below, after glass substrates are placed on upper and lower sides of the anisotropic conductive film respectively, followed by compression at 110° C. to 200° C. for 3 to 7 seconds under a load of 1 MPa to 7 MPa per unit area of a sample, Increased ratio of expansion length(%)=[(length of corresponding layer in width direction after compression?length of corresponding layer in width direction before compression)/length of corresponding layer in width direction before compression]×100.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 2, 2015
    Inventors: Young Ju SHIN, Kyoung Ku KANG, Ji Yeon KIM, Kyoung Soo PARK, Woo Jung SHIN, Kwang Jin JUNG, Ja Young HWANG
  • Patent number: 8968845
    Abstract: A thermal transfer film and a method of manufacturing an OLED display, the thermal transfer film including a light to heat conversion layer, the light to heat conversion layer being formed of a composition including carbon black having an oil absorption number (OAN) of about 50 cc/100 gram to about 120 cc/100 gram and a mean particle size of about 40 nm to about 200 nm; and a binder.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: March 3, 2015
    Assignee: Cheil Industries, Inc.
    Inventors: Si Kyun Park, Se Hyun Park, Jung Hyo Lee, Hyoung Tae Lim, Seong Heun Cho, Kyoung Ku Kang
  • Patent number: 8968846
    Abstract: A thermal transfer film and an organic electroluminescent display manufactured using the thermal transfer film, the thermal transfer film including a base layer; and a transfer enhancement layer having a surface energy of about 25 dyne/cm or less.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: March 3, 2015
    Assignee: Cheil Industries, Inc
    Inventors: Hyoung Tae Lim, Kyoung Ku Kang, Jung Hyo Lee, Seong Heun Cho, Si Kyun Park, Se Hyun Park
  • Publication number: 20150036298
    Abstract: A transparent conductor includes a base layer, and a transparent conductive film on one or both sides of the base layer, the transparent conductive film including a metal nanowire, where the base layer includes a retardation film. An optical display apparatus includes the transparent conductor. The transparent conductor may compensate for a viewing angle of the optical display apparatus.
    Type: Application
    Filed: July 31, 2014
    Publication date: February 5, 2015
    Inventors: Do Young Kim, Kyoung Ku Kang, Young Kwon Koo, Dong Myeong Shin, Hyoung Tae Lim, Oh Hyeon Hwang
  • Publication number: 20150030884
    Abstract: A method for evaluating dispersion of a light-to-heat conversion material in a thermal transfer film includes calculating optical densities OD1 and OD2 of the thermal transfer film according to Equations 2 and 3, and calculating a dispersion evaluation value ?OD according to Equation 1. The thermal transfer film has good dispersion of the light-to-heat conversion material when the dispersion evaluation value ?OD is 0.1 or less, and the thermal transfer film has poor dispersion of the light-to-heat conversion material when the dispersion evaluation value ?OD is greater than 0.1.
    Type: Application
    Filed: July 23, 2014
    Publication date: January 29, 2015
    Inventors: Se Hyun Park, Kyoung Ku Kang, Seong Heun Cho, Min Hye Kim, Sung Han Kim, Si-Kyun Park, Eun Su Lee, Jung Hyo Lee, Jin Hee Choi
  • Publication number: 20150004376
    Abstract: The present invention relates to a method for manufacturing a film laminate and to a film laminated formed by the method. The method comprises the steps of: applying a photocurable composition to a first base film; and irradiating light from a UV LED in order to harden the photocurable composition, wherein the first base film has a transmittance of approximately 50% or higher at the emission wavelength of the UV LED.
    Type: Application
    Filed: December 20, 2012
    Publication date: January 1, 2015
    Inventors: Jin Ki Hong, Seong Heun Cho, Kyoung Ku Kang, Hyoung Tae Im, Jung Hyo Lee, Si Kyun Park, Se Hyun Park
  • Publication number: 20140302326
    Abstract: A conductive film composition for forming a conductive film in a single coating layer on one or both sides of a base film, the composition including a metal nanowire, and polyfunctional monomers.
    Type: Application
    Filed: June 20, 2014
    Publication date: October 9, 2014
    Inventors: Dong Myeong SHIN, Kyoung Ku KANG, Young Kwon KOO, Do Young KIM
  • Patent number: 8846168
    Abstract: A thermal transfer film includes a light-to-heat conversion layer including a binder and a dye.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: September 30, 2014
    Assignee: Cheil Industries, Inc.
    Inventors: Jung Hyo Lee, Hyoung Tae Lim, Kyoung Ku Kang, Si Kyun Park
  • Publication number: 20140186587
    Abstract: A transparent conductor including: a base layer, a first coating layer on the base layer and having conductivity, and a second coating layer on the first coating layer is disclosed. The base layer, the first coating layer and the second coating layer have refractive indexes of R1, R2 and R3, respectively, at a wavelength of 380 nm to 780 nm, and the transparent conductor has a difference between R1 and R2 (R1?R2) of about 0.05 to about 0.20, and a difference between R2 and R3 (R2?R3) of about 0.01 to about 0.20. An apparatus including the transparent conductor is also disclosed.
    Type: Application
    Filed: December 26, 2013
    Publication date: July 3, 2014
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Dong Myeong Shin, Kyoung Ku Kang, Do Young Kim, Young Kwon Koo, Oh Hyeon Hwang
  • Publication number: 20140106154
    Abstract: A transparent conductor, a composition for the same, and an apparatus including the same, the transparent conductor including a transparent conductive film, the transparent conductive film including a metal nanowire and a conductive polymer, wherein the transparent conductor has a b* value of less than about 1.78 in color coordinates of CIE Lab at wavelengths of 400 nm to 700 nm.
    Type: Application
    Filed: October 10, 2013
    Publication date: April 17, 2014
    Inventors: Do Young KIM, Young Kwon KOO, Dong Myeong SHIN, Oh Hyeon HWANG, Kyoung Ku KANG
  • Publication number: 20140050909
    Abstract: A laminate includes a base film, and a silsesquioxane-containing film formed on at least one of upper and lower sides of the base film. Also disclosed are a window sheet including the laminate, and a display apparatus including the window sheet.
    Type: Application
    Filed: October 22, 2013
    Publication date: February 20, 2014
    Inventors: Jin Hee CHOI, Do Young KIM, Kyoung Ku KANG
  • Publication number: 20140023801
    Abstract: A thermal transfer film includes a base layer, and a light-to-heat conversion layer on the base layer, the light-to-heat conversion layer including at least one of particles selected from tungsten oxide particles and composite tungsten oxide particles, the particles being present in an amount of about 20 wt % to about 65 wt % in the light-to-heat conversion layer.
    Type: Application
    Filed: July 19, 2013
    Publication date: January 23, 2014
    Inventors: Si Kyun PARK, Kyoung Ku KANG, Se Hyun PARK, Jung Hyo LEE, Seong Heun CHO
  • Publication number: 20130287974
    Abstract: A thermal transfer film includes a light-to-heat conversion layer including a binder and a dye.
    Type: Application
    Filed: June 26, 2013
    Publication date: October 31, 2013
    Inventors: Jung Hyo Lee, Hyoung Tae Lim, Kyoung Ku Kang, Si Kyun Park