Patents by Inventor Il Eok Kwon

Il Eok 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).

  • Patent number: 9152041
    Abstract: Disclosed is a display panel including a lower substrate, upper substrate, and a patterned spacer that causes the lower substrate and upper substrate to be spaced apart from each other by a predetermined distance, wherein the patterned spacer is obtained from a photosensitive resin composition comprising: (a) a triazine-based photopolymerization initiator represented by the following formula 1; (b) an alkali-soluble photo polymerizable reactive resin binder; and (c) a polymerizable compound: (wherein each of R1-R5 has the same meaning as defined herein). A photosensitive resin composition for use in a patterned spacer is also disclosed, the composition comprising: (a) a triazine-based photopolymerization initiator represented by the following formula 1; (b) an alkali-soluble photopolymerizable reactive resin binder; (c) a polymerizable compound; and (d) a solvent.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: October 6, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Sung Hyun Kim, Jin Suek Kim, Kyung Jun Kim, Seung Hee Lee, Il Eok Kwon, Jeong Ae Yoon
  • Patent number: 7556910
    Abstract: The present invention relates to a photosensitive composition comprising a triazine-based photoactive compound containing oxime ester. The photosensitive composition according to the present invention has good sensitivity, retention rate, mechanical strength, heat resistance, chemical resistance and developing durability since it contains, as photopolymerization initiator, a compound having an oxime ester group and a triazine group in one molecule and thus effectively absorbs UV radiation. Therefore, the photosensitive composition according to the present invention is advantageous not only in curing of materials for color filters, resin black matrixes, column spacers, overcoats and passivation films of liquid crystal displays, but also in high temperature process characteristics.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: July 7, 2009
    Assignee: LF Chem, Ltd.
    Inventors: Sung Hyun Kim, Kyung Jun Kim, Dong Chang Choi, Jeong Ae Yoon, Hee Kwan Park, Geun Young Cha, Keon Woo Lee, Il Eok Kwon, Dong Kung Oh, Jong Hyun Park, Xiang Li Li, Han Soo Kim, Min Young Lim, Chang Ho Cho
  • Publication number: 20080213514
    Abstract: Disclosed is a display panel including a lower substrate, upper substrate, and a patterned spacer that causes the lower substrate and upper substrate to be spaced apart from each other by a predetermined distance, wherein the patterned spacer is obtained from a photo-sensitive resin composition comprising: (a) a triazine-based photopolymerization initiator represented by the following formula 1; (b) an alkali-soluble photo polymerizable reactive resin binder; and (c) a polymerizable compound: (wherein each of R1-R5 has the same meaning as defined herein). A photosensitive resin composition for use in a patterned spacer is also disclosed, the composition comprising: (a) a triazine-based photopolymerization initiator represented by the following formula 1; (b) an alkali-soluble photopolymerizable reactive resin binder; (c) a polymerizable compound; and (d) a solvent.
    Type: Application
    Filed: July 5, 2005
    Publication date: September 4, 2008
    Inventors: Sung Hyun Kim, Jin Suek Kim, Kyung Jun Kim, Seung Hee Lee, Il Eok Kwon, Jeong Ae Yoon
  • Publication number: 20070128548
    Abstract: The present invention relates to a photosensitive composition comprising a triazine-based photoactive compound containing oxime ester. The photosensitive composition according to the present invention has good sensitivity, retention rate, mechanical strength, heat resistance, chemical resistance and developing durability since it contains, as photopolymerization initiator, a compound having an oxime ester group and a triazine group in one molecule and thus effectively absorbs UV radiation. Therefore, the photosensitive composition according to the present invention is advantageous not only in curing of materials for color filters, resin black matrixes, column spacers, overcoats and passivation films of liquid crystal displays, but also in high temperature process characteristics.
    Type: Application
    Filed: November 29, 2006
    Publication date: June 7, 2007
    Inventors: Sung Kim, Kyung Kim, Dong Choi, Jeong Yoon, Hee Park, Geun Cha, Keon Lee, Il Eok Kwon, Dong Oh, Jong Park, Xiang Li, Han Kim, Min Lim, Chang Cho