Patents by Inventor Joung-Won Choi

Joung-Won Choi 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: 7718215
    Abstract: An apparatus for forming alignment layer includes a printing stage for supporting a substrate thereon, at least one inkjet head having at least one spray hole above the printing stage, the spray hole spraying an alignment material onto the substrate, a head support supporting the inkjet head, a pitch measuring unit adjacent to the inkjet head, and a display unit displaying measured results provided by the pitch measuring unit.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: May 18, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Young-Sang Byun, Joung-Won Choi, Hong-Seok Lee
  • Publication number: 20080118653
    Abstract: An apparatus for forming alignment layer includes a printing stage for supporting a substrate thereon, at least one inkjet head having at least one spray hole above the printing stage, the spray hole spraying an alignment material onto the substrate, a head support supporting the inkjet head, a pitch measuring unit adjacent to the inkjet head, and a display unit displaying measured results provided by the pitch measuring unit.
    Type: Application
    Filed: November 20, 2007
    Publication date: May 22, 2008
    Inventors: Young-Sang Byun, Joung-Won Choi, Hong-Seok Lee
  • Patent number: 7338560
    Abstract: An apparatus for forming alignment layer includes a printing stage for supporting a substrate thereon, at least one inkjet head having at least one spray hole above the printing stage, the spray hole spraying an alignment material onto the substrate, a head support supporting the inkjet head, a pitch measuring unit adjacent to the inkjet head, and a display unit displaying measured results provided by the pitch measuring unit.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: March 4, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Young-Sang Byun, Joung-Won Choi, Hong-Seok Lee
  • Patent number: 7340322
    Abstract: A rubbing apparatus and method for liquid crystal display panels are provided. The apparatus includes at least one cassette for keeping at least one mother substrate to be rubbed, an internal port for keeping at least one dummy substrate for performing alignment of a rubbing material, at least one rubbing unit for receiving the at least one mother substrate from the at least one cassette to perform a rubbing thereon using the rubbing material, or receiving the at least one dummy substrate from the internal port to perform an alignment process of the rubbing material, and a robot for transferring or returning the at least one mother substrate kept in the at least one cassette, the at least one dummy substrate kept in the internal port, the at least one mother substrate which has been rubbed in the at least one rubbing unit, or the at least one dummy substrate on which the alignment process of the rubbing material has been performed.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: March 4, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Jeong-Joon Lee, Hyun-Ho Song, Joung-Won Choi
  • Patent number: 6911246
    Abstract: A rubbing apparatus having a turning buffer for fabricating a liquid crystal display device is disclosed in the present invention. The turning buffer includes a first support having a first mother substrate mounted thereon, a first turning unit rotating the first support, a second support having a second mother substrate mounted thereon, and a second turning unit rotating the first support, wherein the first and second turning units are separated from one another.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: June 28, 2005
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Joung-Won Choi, Jin-Suk Kang
  • Publication number: 20050128240
    Abstract: An apparatus for forming alignment layer includes a printing stage for supporting a substrate thereon, at least one inkjet head having at least one spray hole above the printing stage, the spray hole spraying an alignment material onto the substrate, a head support supporting the inkjet head, a pitch measuring unit adjacent to the inkjet head, and a display unit displaying measured results provided by the pitch measuring unit.
    Type: Application
    Filed: May 17, 2004
    Publication date: June 16, 2005
    Inventors: Young-Sang Byun, Joung-Won Choi, Hong-Seok Lee
  • Publication number: 20050096791
    Abstract: A rubbing apparatus and method for liquid crystal display panels are provided.
    Type: Application
    Filed: October 29, 2004
    Publication date: May 5, 2005
    Inventors: Jeong-Joon Lee, Hyun-Ho Song, Joung-Won Choi
  • Publication number: 20030179332
    Abstract: A rubbing apparatus having a turning buffer for fabricating a liquid crystal display device is disclosed in the present invention. The turning buffer includes a first support having a first mother substrate mounted thereon, a first turning unit rotating the first support, a second support having a second mother substrate mounted thereon, and a second turning unit rotating the first support, wherein the first and second turning units are separated from one another.
    Type: Application
    Filed: December 31, 2002
    Publication date: September 25, 2003
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Joung-Won Choi, Jin-Suk Kang