Patents by Inventor Chang Pyo Hong

Chang Pyo Hong 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: 9268066
    Abstract: This invention relates to a complex prism sheet which is configured such that heat-resistant coating layers are formed on both surfaces of a substrate layer, thus preventing wrinkling or curling of the complex prism sheet due to heat generated from a light source, and increasing concealment and electro-optic characteristics, ultimately improving properties of a light crystal display. This complex prism sheet can be usefully applied to television (TV) sets, monitors, notebook personal computers (NBPCs), etc., which are required to have heat resistance, slimness and concealment because of an increasing use of a light emitting diode (LED) light source these days.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: February 23, 2016
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Chang Won Park, Chang Pyo Hong, Kyung Jong Kim, Tae Kyung Kim, Eui Young Shin, Hong Gu Hwang
  • Patent number: 9051443
    Abstract: Disclosed is an optical sheet which is used in a liquid crystal display. The optical sheet is not readily damaged by external impact, and thus is easy to handle and can reduce failure rate, leading to a decrease in production cost and an increase in production efficiency. Also, it can prevent a decrease in brightness.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: June 9, 2015
    Assignee: KOLON Industries, Inc.
    Inventors: Chang Pyo Hong, Kyung Jong Kim, Sung Chul Jeong
  • Publication number: 20150055326
    Abstract: This invention relates to a complex prism sheet which is configured such that heat-resistant coating layers are formed on both surfaces of a substrate layer, thus preventing wrinkling or curling of the complex prism sheet due to heat generated from a light source, and increasing concealment and electro-optic characteristics, ultimately improving properties of a light crystal display. This complex prism sheet can be usefully applied to television (TV) sets, monitors, notebook personal computers (NBPCs), etc., which are required to have heat resistance, slimness and concealment because of an increasing use of a light emitting diode (LED) light source these days.
    Type: Application
    Filed: December 6, 2012
    Publication date: February 26, 2015
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Chang Won Park, Chang Pyo Hong, Kyung Jong Kim, Tae Kyung Kim, Eui Young Shin, Hong Gu Hwang
  • Patent number: 8939596
    Abstract: Disclosed is a condensing type optical sheet for use in a liquid crystal display, which prevents the generation of a yellow band or a rainbow phenomenon without using a protective sheet.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: January 27, 2015
    Assignee: Kolon Industries, Inc.
    Inventors: Hyun Soo Lee, Chang Pyo Hong, Chung Seock Kang
  • Publication number: 20130302563
    Abstract: The present invention relates to a photopolymerizable composition and an optical sheet comprising a cured resin layer formed therefrom. The polymerizable composition shows a high refractive index and excellent light resistance and is thus useful for an optical sheet assembly for a backlight unit.
    Type: Application
    Filed: October 20, 2011
    Publication date: November 14, 2013
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Hong Gu Hwang, Kyung Jong Kim, Chang Won Park, Eui Young Shin, Chang Pyo Hong
  • Publication number: 20130288002
    Abstract: A photopolymerizable composition and an optical sheet comprising a cured resin layer formed therefrom. The polymerizable composition has a high refractive index and excellent light resistance and is thus useful for an optical sheet assembly for a backlight unit.
    Type: Application
    Filed: October 20, 2011
    Publication date: October 31, 2013
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Hong Gu Hwang, Kyung Jong Kim, Chang Won Park, Eui Young Shin, Chang Pyo Hong
  • Publication number: 20130271825
    Abstract: This invention provides an optical sheet for use in for example a liquid crystal display, which prevents scratching and wet-out due to contact between films and minimizes the drop in performance of the optical sheet due to adhesive stains when an additional protective film is adhered and then peeled off.
    Type: Application
    Filed: December 29, 2011
    Publication date: October 17, 2013
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Kyung Jong Kim, Chang Won Park, Eui Young Shin, Chang Pyo Hong, Hong Gu Hwang
  • Publication number: 20130040111
    Abstract: The present invention relates to an optical sheet with an elasticity and a photosensitive resin composition used for a liquid crystal display, in which the present invention has advantages that it can be easily handled because it cannot be easily damaged from an external impact; a production cost can be decreased and a production efficiency can be improved due to a decrease of error rate; and it can prevent the decrease of luminance due to a damage.
    Type: Application
    Filed: June 30, 2011
    Publication date: February 14, 2013
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Chang Won Park, Kyung Jong Kim, Chang Pyo Hong
  • Publication number: 20120127698
    Abstract: Disclosed is a condensing type optical sheet for use in a liquid crystal display, which prevents the generation of a yellow band or a rainbow phenomenon without using a protective sheet.
    Type: Application
    Filed: July 28, 2010
    Publication date: May 24, 2012
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Hyun Soo Lee, Chang Pyo Hong, Chung Seock Kang
  • Publication number: 20110117322
    Abstract: Disclosed is an optical sheet which is used in a liquid crystal display. The optical sheet is not readily damaged by external impact, and thus is easy to handle and can reduce failure rate, leading to a decrease in production cost and an increase in production efficiency. Also, it can prevent a decrease in brightness.
    Type: Application
    Filed: May 11, 2009
    Publication date: May 19, 2011
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Chang Pyo Hong, Kyung Jong Kim, Sung Chul Jeong
  • Publication number: 20100183845
    Abstract: Disclosed is an optical sheet, which is environmentally friendly and has a high refractive index and superior light resistance, and is thus useful for an optical sheet assembly of a backlight unit.
    Type: Application
    Filed: May 28, 2008
    Publication date: July 22, 2010
    Applicant: KOLON INDUSTRIES, INC
    Inventors: Chang Pyo Hong, Hyo Jin Lee