Patents by Inventor Seong Heun CHO

Seong Heun CHO 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: 20230332024
    Abstract: Provided are an adhesive film, an optical member comprising same, and an optical display device comprising same, the adhesive film comprising a (meth)acryl-based binder containing an aromatic group and a hydroxyl group, inorganic particles, and a trigger polymer, wherein the trigger polymer has a melting point of about 0° C. or more, the adhesive film has a haze of about 2% or less, and an adhesive film has a ratio of adhesive strength of about 10 or more according to Equation 1.
    Type: Application
    Filed: September 1, 2021
    Publication date: October 19, 2023
    Inventors: Do Young KIM, Young Jong KIM, Seung Hoon LEE, Seong Heun CHO, Il Jin KIM
  • Patent number: 11378844
    Abstract: Provided are a viewer-side polarizing plate for a liquid crystal display device, and a liquid crystal display device comprising the same, the polarizing plate comprising a polarizer and a protective film formed on a light exit surface of the polarizer, wherein the protective film includes a first primer layer, a protective film substrate, a second primer layer, and a coating layer, which are sequentially laminated on the polarizer, a first protective film satisfies a relation of Equation 1, and the protective film substrate has an in-plane phase difference of 500 nm or less at a wavelength of 550 nm in Equation 2.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: July 5, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Dae Seob Shim, Hyoung Tae Lim, Seong Heun Cho, Se Hyun Park, Bu Keun Oh
  • Publication number: 20220041903
    Abstract: An adhesive film, an optical member including the same, and an optical display including the same, the adhesive film being formed of an adhesive film composition, the adhesive film composition including a (meth)acrylic polymer having an aromatic group and a hydroxyl group; inorganic particles having an index of refraction of about 1.5 or more; and a crosslinking agent, wherein the adhesive film has a modulus of about 50 kPa to about 500 kPa at 25° C.
    Type: Application
    Filed: August 3, 2021
    Publication date: February 10, 2022
    Inventors: Do Young KIM, Young Jong KIM, Seung Hoon LEE, Seong Heun CHO, Ji Young HAN, IL Jin KIM
  • Publication number: 20190317353
    Abstract: Provided are a viewer-side polarizing plate for a liquid crystal display device, and a liquid crystal display device comprising the same, the polarizing plate comprising a polarizer and a protective film formed on a light exit surface of the polarizer, wherein the protective film includes a first primer layer, a protective film substrate, a second primer layer, and a coating layer, which are sequentially laminated on the polarizer, a first protective film satisfies a relation of Equation 1, and the protective film substrate has an in-plane phase difference of 500 nm or less at a wavelength of 550 nm in Equation 2.
    Type: Application
    Filed: September 18, 2017
    Publication date: October 17, 2019
    Inventors: Dae Seob SHIM, Hyoung Tae LIM, Seong Heun CHO, Se Hyun PARK, Bu Keun OH
  • Patent number: 9688088
    Abstract: The present invention relates to a thermal transfer film comprising: a base layer; and a light-to-heat conversion layer which is laminated on top of the base layer and includes a first layer laminated on top of the base layer and a second layer laminated on top of the first layer in the thickness direction, wherein light-to-heat conversion materials are more omnipresent in the first layer than the second layer. The present invention also relates to an organic electroluminescent device prepared using said film.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: June 27, 2017
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Jung Hyo Lee, Kyoung Ku Kang, Si Kyun Park, Seong Heun Cho, Sung Han Kim, Se Hyun Park, Eun Su Lee, Jin Hee Choi
  • Patent number: 9676219
    Abstract: The present invention relates to a heat transfer film and an organic electroluminescent element manufactured using the same. More specifically, the present invention relates to: a heat transfer film comprising a base film and an outermost layer formed on the base film, wherein a ratio of an elastic modulus of the outermost layer to an elastic modulus of the base film at 25° C. and relative humidity of 45% is approximately 1 or more; and an organic electroluminescent element manufactured using the same.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: June 13, 2017
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Seong Heun Cho, Kyoung Ku Kang, Si Kyun Park, Sung Han Kim, Se Hyun Park, Eun Su Lee, Jung Hyo Lee, Jin Hee Choi
  • Patent number: 9656499
    Abstract: The present invention relates to a thermal transfer film, a method for manufacturing the same, and an organic electroluminescent element manufactured by using the thermal transfer film, and the thermal transfer film comprises: a base film; a photothermal conversion layer formed on the upper part of the base film; and a coating layer formed on the lower part of the base film.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: May 23, 2017
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Jin Hee Choi, Kyoung Ku Kang, Se Hyun Park, Seong Heun Cho, Jung Hyo Lee
  • Patent number: 9620715
    Abstract: The present invention relates to a thermal transfer film comprising: a photothermal conversion layer; and a diffusion member formed on the upper surface of said photothermal conversion layer, wherein the diffusion member is a thermal transfer film having about 10% or more of the haze, and also relates to a method for manufacturing same, and to an organic electroluminescent device manufactured using said method.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: April 11, 2017
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Seong Heun Cho, Kyoung Ku Kang, Se Hyun Park, Si Kyun Park, Eun Gon Lee, Hyoung Tae Im, Jung Hyo Lee
  • Patent number: 9610794
    Abstract: The present invention relates to a thermal transfer film and to an organic electroluminescent device prepared using same, wherein the thermal transfer film includes a base film and an outermost layer which is formed on the base film and has 2% or more of a thickness change ratio expressed by formula 1.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: April 4, 2017
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Se Hyun Park, Kyoung Ku Kang, Jung Hyo Lee, Min Hye Kim, Sung Han Kim, Si Kyun Park, Eun Su Lee, Seong Heun Cho, Jin Hee Choi
  • Patent number: 9375906
    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: Grant
    Filed: December 20, 2012
    Date of Patent: June 28, 2016
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Jin Ki Hong, Seong Heun Cho, Kyoung Ku Kang, Hyoung Tae Im, Jung Hyo Lee, Si Kyun Park, Se Hyun Park
  • Publication number: 20150375551
    Abstract: The present invention relates to a heat transfer film and an organic electroluminescent element manufactured using the same. More specifically, the present invention relates to: a heat transfer film comprising a base film and an outermost layer formed on the base film, wherein a ratio of an elastic modulus of the outermost layer to an elastic modulus of the base film at 25° C. and relative humidity of 45% is approximately 1 or more; and an organic electroluminescent element manufactured using the same.
    Type: Application
    Filed: September 30, 2013
    Publication date: December 31, 2015
    Inventors: Seong Heun Cho, Kyoung Ku Kang, Si Kyun Park, Sung Han Kim, Se Hyun Park, Eun Su Lee, Jung Hyo Lee, Jin Hee Choi
  • Publication number: 20150360496
    Abstract: The present invention relates to a thermal transfer film and to an organic electroluminescent device prepared using same, wherein the thermal transfer film includes a base film and an outermost layer which is formed on the base film and has 2% or more of a thickness change ratio expressed by formula 1.
    Type: Application
    Filed: December 26, 2013
    Publication date: December 17, 2015
    Inventors: Se Hyun Park, Kyoung Ku Kang, Jung Hyo Lee, Min Hye Kim, Sung Han Kim, Si Kyun Park, Eun Su Lee, Seong Heun Cho, Jin Hee Choi
  • Publication number: 20150336412
    Abstract: The present invention relates to a thermal transfer film comprising: a base layer; and a light-to-heat conversion layer which is laminated on top of the base layer and includes a first layer laminated on top of the base layer and a second layer laminated on top of the first layer in the thickness direction, wherein light-to-heat conversion materials are more omnipresent in the first layer than the second layer. The present invention also relates to an organic electroluminescent device prepared using said film.
    Type: Application
    Filed: December 27, 2013
    Publication date: November 26, 2015
    Inventors: Jung Hyo Lee, Kyoung Ku Kang, Si Kyun Park, Seong Heun Cho, Sung Han Kim, Se Hyun Park, Eun Su Lee, Jin Hee Choi
  • Publication number: 20150333259
    Abstract: The present invention relates to a thermal transfer film comprising: a photothermal conversion layer; and a diffusion member formed on the upper surface of said photothermal conversion layer, wherein the diffusion member is a thermal transfer film having about 10% or more of the haze, and also relates to a method for manufacturing same, and to an organic electroluminescent device manufactured using said method.
    Type: Application
    Filed: June 12, 2013
    Publication date: November 19, 2015
    Inventors: Seong Heun Cho, Kyoung Ku Kang, Se Hyun Park, Si Kyun Park, Eun Gon Lee, Hyoung Tae Im, Jung Hyo Lee
  • Publication number: 20150333260
    Abstract: The present invention relates to a thermal transfer film, a method for manufacturing the same, and an organic electroluminescent element manufactured by using the thermal transfer film, and the thermal transfer film comprises: a base film; a photothermal conversion layer formed on the upper part of the base film; and a coating layer formed on the lower part of the base film.
    Type: Application
    Filed: December 27, 2013
    Publication date: November 19, 2015
    Inventors: Jin Hee CHOI, Kyoung Ku KANG, Se Hyun PARK, Seong Heun CHO, Jung Hyo LEE
  • Patent number: 9158134
    Abstract: The present invention relates to a light-sensitive compound, a polymer formed by using the compound, and a production method of the compound and polymer. More particularly, the present invention relates to a unit compound that exhibits light-sensitivity with respect to three different wavelengths, a polymer having light-sensitive, which is polymerized by using the unit compound as a monomer, and a production method of the compound and polymer. The light-sensitive compound and the polymer according to the present invention may be usefully applied to an optical film.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: October 13, 2015
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Dong Hack Suh, Won Jung Kim, Yun Cheol Yang, Dong Wan Han, Hong Jun Ahn, Jun Yong Hwang, Kyung Mi Lee, Hyun Jin Lee, Seong Heun Cho, Ga Young Han
  • 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: 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: 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