Patents by Inventor Joon-Koo Kang

Joon-Koo 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).

  • Publication number: 20120321874
    Abstract: The present invention relates to a coating layer for an anti-glare film that can prevent glaring by reflection of external light on a surface of a display and an anti-glare film comprising the same. The coating layer for an anti-glare film according to an exemplary embodiment of the present invention comprises a binder resin, organic particulates, and inorganic particulates, and differences differences between refractive indexes of the binder resin and the organic particulates and between refractive indexes of the binder resin and inorganic particulates are each 0.3 or less. The coating layer for an anti-glare film according to an exemplary embodiment of the present invention can provide an anti-glare film having excellent anti-glare property, distinctness-of-image, and contrast, such that the coating layer can be applied to a display having high resolution, and has excellent scratch resistance in terms of a coating thickness of a thin film, such that it is easy to enlarge a polarizing plate.
    Type: Application
    Filed: February 17, 2011
    Publication date: December 20, 2012
    Inventors: Jae-Hoon Shim, Joon-Koo Kang, Jae-Pil Koo, Yeong-Rae Chang
  • Patent number: 8293000
    Abstract: An antireflective coating composition includes a hydrolytic condensate (C1) of alkoxy silane (C11) and fluoric alkoxy silane (C12); a particle-type metal fluoride (C2) with a refractive index of 1.40 or less; and a liquid dispersion-enhancing chelating agent (C3). A coating film to which the above composition is applied controls refractive index, surface energy, film strength and so on, so it ensures excellent antireflective characteristic, excellent scratch resistance, good erasure of liquid stains such as fingerprints, and particularly excellent dust removal, so it may be usefully applied to an outermost layer of a front surface of a display regardless of kind of a display substrate or presence of an additional coating layer.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: October 23, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Joon-Koo Kang, Mi-Young Han, Young-Eun Lee, Young-Jun Hong, Yeong-Rae Chang
  • Publication number: 20120045594
    Abstract: The present invention provides a coating composition and a coating film, which comprises a) a binder resin containing a UV-curable functional group; b) a compound containing a fluorine UV-curable functional group; c) a photoinitiator; d) nano-sized particles; and e) conductive inorganic particles.
    Type: Application
    Filed: August 23, 2011
    Publication date: February 23, 2012
    Applicant: LG CHEM, LTD.
    Inventors: Yeong-Rae Chang, Joon-Koo Kang, Kyung-Ki Hong, Soon-Hwa Jung, Hye-Min Kim, Soo-Kyoung Lee, Eun-Sang Yoo, Sung-Su Kim, Young-Jun Hong, Ju-Young Kim
  • Patent number: 8110249
    Abstract: An antireflective coating composition includes a photopolymerizable acrylate monomer (C1); a particle-type metal fluoride (C2) with a refractive index of 1.40 or less; a photopolymerization initiator (C3); and at least one liquid dispersion-enhancing chelating agent (C4) selected from the group consisting of Mg(CF3COO)2, Na(CF3COO), K(CF3COO), Ca(CF3COO)2, Mg(CF2COCHCOCF3)2 and Na(CF2COCHCOCF3). This composition ensures good mechanical strength, excellent adhesion to a substrate, short curing time by UV curing, prevention of dust attachment, good erasure of stain, good dust removal and good scratch resistance, so it is usefully for making an antireflective coating film of a display.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: February 7, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Joon-Koo Kang, Mi-Young Han, Young-Eun Lee, Young-Jun Hong, Yeong-Rae Chang
  • Publication number: 20110165404
    Abstract: The present invention provides a fluorine-based compound and a coating composition and a film including the same. By using the fluorine-based compound according to the present invention, a film having excellent functionalities of water repellency, oil repellency, weatherability and contamination resistance can be provided.
    Type: Application
    Filed: September 18, 2009
    Publication date: July 7, 2011
    Inventors: Chong-Kyu Shin, Yeong-Rae Chang, Joon-Koo Kang
  • Publication number: 20100304113
    Abstract: The present invention provides a coating composition and a coating film that comprises a binder containing a UV-curable functional group, a compound containing a fluorine UV-curable functional group, a photoinitiator; and nano-sized particles. The coating film according to the present invention has excellent abrasion resistance and contamination resistance such as fingerprint trace removability and scribbling resistance.
    Type: Application
    Filed: November 28, 2008
    Publication date: December 2, 2010
    Inventors: Yeong-Rae Chang, Joon-Koo Kang, Kyung-Ki Hong, Eun-Sang Yoo, Sung-Su Kim, Ju-Young Kim, Soon-Hwa Jung, Young-Jun Hong
  • Publication number: 20100076109
    Abstract: An antireflective coating composition includes a photopolymerizable acrylate monomer (C1); a particle-type metal fluoride (C2) with a refractive index of 1.40 or less; a photopolymerization initiator (C3); and at least one liquid dispersion-enhancing chelating agent (C4) selected from the group consisting of Mg(CF3COO)2, Na(CF3COO), K(CF3COO), Ca(CF3COO)2, Mg(CF2COCHCOCF3)2 and Na(CF2COCHCOCF3). This composition ensures good mechanical strength, excellent adhesion to a substrate, short curing time by UV curing, prevention of dust attachment, good erasure of stain, good dust removal and good scratch resistance, so it is usefully for making an antireflective coating film of a display.
    Type: Application
    Filed: July 6, 2007
    Publication date: March 25, 2010
    Applicant: LG CHEM, LTD.
    Inventors: Joon-Koo Kang, Mi-Young Han, Young-Eun Lee, Young-Jun Hong, Yeong-Rae Chang
  • Publication number: 20090285993
    Abstract: An antireflective coating composition includes a hydrolytic condensate (C1) of alkoxy silane (C11) and fluoric alkoxy silane (C12); a particle-type metal fluoride (C2) with a refractive index of 1.40 or less; and a liquid dispersion-enhancing chelating agent (C3). A coating film to which the above composition is applied controls refractive index, surface energy, film strength and so on, so it ensures excellent antireflective characteristic, excellent scratch resistance, good erasure of liquid stains such as fingerprints, and particularly excellent dust removal, so it may be usefully applied to an outermost layer of a front surface of a display regardless of kind of a display substrate or presence of an additional coating layer.
    Type: Application
    Filed: July 6, 2007
    Publication date: November 19, 2009
    Inventors: Joon-Koo Kang, Mi-Young Han, Young-Eun Lee, Young-Jun Hong, Yeong-Rae Chang