Patents by Inventor Yoon-kyung Kwon

Yoon-kyung Kwon 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: 20230168536
    Abstract: A polarizing plate and a display device including the same is disclosed herein. In some embodiments, a polarizing plate includes a polarizer which allows only light polarized in a specific direction to pass through; and a haze adhesive film disposed on a one surface of the polarizer and having a haze of 49% to 65%, wherein the haze adhesive film is configured to adhere to the display device, and reduce moire occurring in the dual cell structure of the display device.
    Type: Application
    Filed: October 8, 2021
    Publication date: June 1, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Ha-Song Yun, Na-Hee Kim, Yoon-Kyung Kwon
  • Patent number: 11091672
    Abstract: The present application relates to a method for manufacturing a pressure-sensitive adhesive film. In an embodiment, a method for manufacturing a pressure-sensitive adhesive film having a pressure-sensitive adhesive layer and a base layer includes applying a pressure-sensitive adhesive composition on at least one side of a base layer, where the pressure-sensitive adhesive composition comprises an isocyanate compound, a metal compound and an acrylic polymer; and drying the pressure-sensitive adhesive composition at a temperature of 100° C. or higher to form a pressure-sensitive adhesive layer on the base layer.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: August 17, 2021
    Inventors: Hui Je Lee, Byung Su Park, Yoon Kyung Kwon
  • Patent number: 10947420
    Abstract: The present application relates to a pressure-sensitive adhesive composition for a foldable display and a use thereof. The pressure-sensitive adhesive composition of the present application has excellent bending reliability while having appropriate adhesive force and cohesive force, thereby being useful for forming a pressure-sensitive adhesive layer for a foldable display.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: March 16, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hyon Gyu Park, Dong Kyu Roh, Yoon Kyung Kwon
  • Patent number: 10920113
    Abstract: The present application relates to a pressure-sensitive adhesive composition for a foldable display and a use thereof. The pressure-sensitive adhesive composition of the present application has excellent bending reliability, and also excellent adhesive force and cohesive force.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: February 16, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hyon Gyu Park, Dong Kyu Roh, Yoon Kyung Kwon, Byung Su Park, Hui Je Lee
  • Patent number: 10920112
    Abstract: The present application relates to a pressure-sensitive adhesive composition for a foldable display and a use thereof. The pressure-sensitive adhesive composition of the present application has excellent bending reliability while having appropriate adhesive force and cohesive force, thereby being useful for forming a pressure-sensitive adhesive layer for a foldable display having improved release force.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: February 16, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hyon Gyu Park, Dong Kyu Roh, Yoon Kyung Kwon
  • Publication number: 20200048505
    Abstract: The present application relates to a method for manufacturing a pressure-sensitive adhesive film. In an embodiment, a method for manufacturing a pressure-sensitive adhesive film having a pressure-sensitive adhesive layer and a base layer includes applying a pressure-sensitive adhesive composition on at least one side of a base layer, where the pressure-sensitive adhesive composition comprises an isocyanate compound, a metal compound and an acrylic polymer; and drying the pressure-sensitive adhesive composition at a temperature of 100° C. or higher to form a pressure-sensitive adhesive layer on the base layer.
    Type: Application
    Filed: October 31, 2017
    Publication date: February 13, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Hui Je LEE, Byung Su PARK, Yoon Kyung KWON
  • Patent number: 10509273
    Abstract: A display element, a method for manufacturing the same, and a use thereof are provided. The display element can induce a decrease in driving voltage without reducing a difference in a cell gap, have durability by ensuring proper adhesion characteristics, and, specifically, can effectively overcome a problem of the display element including a vertical alignment adhesive layer, in particular, a problem of increasing driving voltage, which can be generated when the thickness is increased so as to improve the adhesion characteristics.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: December 17, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Jung Sun You, Yoon Kyung Kwon, Dong Hyun Oh, Sung Joon Min, Jin Hong Kim, Jung Woon Kim, Eun Jung Lim
  • Patent number: 10505067
    Abstract: Provided are an aqueous dispersion composition, a backsheet for a photovoltaic module, a method of preparing the same, and a photovoltaic module. Since the aqueous dispersion composition includes a fluorine-based polymer, a pigment and an aqueous dispersion binder, a backsheet for a photovoltaic module using the aqueous dispersion composition is prepared without a toxic organic solvent, and thus is environmentally friendly and economical. In addition, as the aqueous dispersion binder is used, a chalking phenomenon in which the pigment projected on a surface of the backsheet is easily detached may be prevented, thereby enhancing both productivity and quality.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: December 10, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Yoon Kyung Kwon, Hyun Cheol Kim
  • Publication number: 20190233682
    Abstract: The present application relates to a pressure-sensitive adhesive composition for a foldable display and a use thereof. The pressure-sensitive adhesive composition of the present application has excellent bending reliability while having appropriate adhesive force and cohesive force, thereby being useful for forming a pressure-sensitive adhesive layer for a foldable display having improved release force.
    Type: Application
    Filed: September 8, 2017
    Publication date: August 1, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Hyon Gyu PARK, Dong Kyu ROH, Yoon Kyung KWON
  • Publication number: 20190203077
    Abstract: The present application relates to a pressure-sensitive adhesive composition for a foldable display and a use thereof. The pressure-sensitive adhesive composition of the present application has excellent bending reliability while having appropriate adhesive force and cohesive force, thereby being useful for forming a pressure-sensitive adhesive layer for a foldable display.
    Type: Application
    Filed: March 7, 2019
    Publication date: July 4, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Hyon Gyu PARK, Dong Kyu ROH, Yoon Kyung KWON
  • Publication number: 20190203078
    Abstract: The present application relates to a pressure-sensitive adhesive composition for a foldable display and a use thereof. The pressure-sensitive adhesive composition of the present application has excellent bending reliability, and also excellent adhesive force and cohesive force.
    Type: Application
    Filed: September 8, 2017
    Publication date: July 4, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Hyon Gyu PARK, Dong Kyu ROH, Yoon Kyung KWON, Byung Su PARK, Hui Je LEE
  • Publication number: 20190119537
    Abstract: [Summary] The present invention relates to a protective film and a polarizing plate comprising the same, and provides a protective film capable of minimizing the amount of static electricity that can be generated upon peeling the protective film.
    Type: Application
    Filed: March 13, 2017
    Publication date: April 25, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Byung Su Park, Hui Je Lee, Hak Lim Kim, Yoon Kyung Kwon, Dong Kyu Kim, Hoon Jung
  • Publication number: 20180074377
    Abstract: A display element, a method for manufacturing the same, and a use thereof are provided. The display element can induce a decrease in driving voltage without reducing a difference in a cell gap, have durability by ensuring proper adhesion characteristics, and, specifically, can effectively overcome a problem of the display element including a vertical alignment adhesive layer, in particular, a problem of increasing driving voltage, which can be generated when the thickness is increased so as to improve the adhesion characteristics.
    Type: Application
    Filed: June 10, 2016
    Publication date: March 15, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Jung Sun You, Yoon Kyung Kwon, Dong Hyun Oh, Sung Joon Min, Jin Hong Kim, Jung Woon Kim, Eun Jung Lim
  • Patent number: 9640690
    Abstract: Provided are a multi-layered film, a backsheet for a photovoltaic cell, a method of forming the same and a photovoltaic module. The multi-layered film may include a primer layer and a fluoropolymer coating layer formed by coating, and thus the fluoropolymer coating layer, which is a surface layer, may have excellent durability and weather resistance due to an inter-diffusion effect between materials in the respective layers, and a high interface adhesive strength with a substrate and the primer layer. In addition, in the preparation of the multi-layered film, a production cost may be reduced, productivity may be increased, and degradation in quality of a product caused by thermal transformation or heat shock may be prevented. The multi-layered film may be effectively used as a backsheet for various photovoltaic modules.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: May 2, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Yoon Kyung Kwon, Hyun Cheol Kim, Hyun Seong Ko
  • Patent number: 9478678
    Abstract: A front sheet of solar cell, a method of manufacturing the same and a photovoltaic module are provided. The front sheet of solar cell can effectively block infrared rays (IRs) by forming an IR blocking layer including a cholesteric liquid crystal (CLC) material on a substrate. Thus, an increase in temperature of a cell can be suppressed so that the power generation efficiency of the cell can be improved. Also, the multi-layered sheet can be configured so that a UV blocking layer including a fluorine-based polymer and a wavelength conversion material can be formed on the IR blocking layer. Thus, wavelengths of a UV region can be converted into wavelengths of a VR region so that the power generation efficiency of the cell can be improved, and discoloration and deformation caused by UVs can be prevented so that the weather resistance can be improved.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: October 25, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Cheol Kim, Moon Soo Park, Dae Hee Lee, Yoon Kyung Kwon, Hyun Seong Ko
  • Patent number: 9450128
    Abstract: A multi-layered film, a backsheet for photovoltaic modules, a method of manufacturing the same, and a photovoltaic module are provided. The multi-layered film having excellent reliability and adhesive strength under high heat/moisture conditions and also showing excellent weather resistance and durability may be provided by forming a primer layer including an oxazoline group-containing polymer on a substrate and forming a resin layer including a fluorine-based polymer on the primer layer. The primer layer and resin layer of the multi-layered film may be manufactured at a low cost under a low drying temperature using a solvent having a low boiling point, so that the manufacturing costs can be reduced and the quality of the product can be prevented from being deteriorated by thermal deformation or thermal shock.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: September 20, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Cheol Kim, Yoon Kyung Kwon
  • Patent number: 9379264
    Abstract: A multilayered film, a back sheet for a photovoltaic cell, methods of manufacturing the film and cell, and a photovoltaic module including the film and cell are provided. The multilayered film includes a resin layer formed on a substrate, and the resin layer contains a fluorine-based polymer and a reactive functional group having an equivalent weight of 30,000 or less. The resin layer containing the fluorine-based polymer has good durability and weatherability and is highly adhesive to the substrate at an interface between the resin layer and the substrate. Also, since a drying process may be performed at a low temperature during manufacture of the multilayered film, manufacturing costs may be reduced, productivity may be increased, and degradation in the quality of products due to thermal deformation or thermal shock may be prevented. The multilayered film may be effectively used as, for example, a back sheet for various photovoltaic modules.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: June 28, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Cheol Kim, Yoon Kyung Kwon, Hyun Seong Ko, Hyo Soon Park, Do Won Ahn
  • Patent number: 9312415
    Abstract: Provided are a multi-layered sheet, a backsheet for a photovoltaic cell, a method of preparing the same and a photovoltaic module. The multi-layered sheet in which a resin layer including a fluorine-based resin has excellent durability and weather resistance, and also exhibits strong interfacial adhesion to a substrate or polymer coating layer is provided. When a drying process is performed at a low temperature in preparation of the multi-layered sheet, production cost can be reduced, producibility can be increased, and degradation in the quality of a product caused by thermal deformation or thermal shock can be prevented. Such a multi-layered sheet may be effectively used as a backsheet for various photovoltaic cells.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: April 12, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Cheol Kim, Hyun Seong Ko, Hyo Soon Park, Yoon Kyung Kwon, Do Won Ahn
  • Publication number: 20160002502
    Abstract: Provided are a conductive laminate, a method of manufacturing the same, and an electronic device including the same. The conductive laminate may prevent bubbles from being generated from a pressure-sensitive adhesive layer during thermal treatment for crystallizing a conductive layer.
    Type: Application
    Filed: September 29, 2014
    Publication date: January 7, 2016
    Inventors: Yoon Kyung KWON, Hyun Cheol KIM, Hyon Gyu PARK
  • Publication number: 20150344747
    Abstract: Provided are a pressure sensitive adhesive composition, a conductive laminate protective film, and a conductive laminate. A cured product of the pressure sensitive adhesive composition according to the present application constitutes a pressure sensitive adhesive layer attached on a hard coating surface of a conductive laminate or the like, so that a surface of the conductive laminate or the like can be protected as well as that a peeling force can be maintained appropriately regardless of a peeling rate even after a heat treatment for sintering, and thus can be used for a protective film.
    Type: Application
    Filed: November 17, 2014
    Publication date: December 3, 2015
    Inventors: Yong Su PARK, Hui Je LEE, Hyun Cheol KIM, Yoon Kyung KWON, Hyon Gyu PARK, Hak Lim KIM, Dae Hyuck LEE, Say Young JUNG