Patents by Inventor Yeong Geun Hwang

Yeong Geun Hwang 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: 7483111
    Abstract: An apparatus for fabricating a liquid crystal display panel includes a chamber for holding a substrate, wherein the substrate includes first and second metal patterns, a spray nozzle connected to the chamber for spraying spacers onto the substrate, wherein the spacers are charged with a predetermined polarity, and a first power supplier connected to the chamber for applying a first voltage with a positive polarity and a second voltage with a negative polarity to the first and second metal patterns of the substrate.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: January 27, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Seong Ho Kim, Woo Sup Shin, Hak Jun Lee, Yeong Geun Hwang, Tae Man Kim
  • Patent number: 7292306
    Abstract: A method for forming an LCD device, a sealant dispensing apparatus and an LCD device manufactured by the sealant dispensing apparatus. The method includes preparing lower and upper substrates; dispensing liquid crystal on any one of the lower and upper substrates; forming a main sealant having no inlet on any one of the lower and upper substrates; forming an auxiliary sealant in the periphery of the main sealant on any one of the lower and upper substrates; and bonding the lower and upper substrates to each other; wherein the main and auxiliary sealants are formed at the same time. The sealant dispensing apparatus includes a syringe having main and auxiliary nozzles for discharging sealant. The auxiliary nozzle rotates revolves around the main nozzle. The spacing between the main nozzle and the auxiliary nozzle may be controlled to control the interval between the auxiliary and the main sealants.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: November 6, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Yeong Geun Hwang
  • Patent number: 7158204
    Abstract: A method and an apparatus that can fabricate a liquid crystal display panel capable of selectively forming a spacer at a desired area. The inventive apparatus includes a sprayer to spray adhesive spacers over a substrate having at least one metal pattern, a dryer to dry the adhesive spacers, and a blower to selectively remove the adhesive spacers located at a region non-overlapping the metal pattern.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: January 2, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Seong Ho Kim, Woo Sup Shin, Yeong Geun Hwang, Tae Man Kim
  • Patent number: 6889721
    Abstract: An apparatus for fabricating a liquid crystal display panel includes a chamber for holding a substrate, wherein the substrate includes first and second metal patterns, a spray nozzle connected to the chamber for spraying spacers onto the substrate, wherein the spacers are charged with a predetermined polarity, and a first power supplier connected to the chamber for applying a first voltage with a positive polarity and a second voltage with a negative polarity to the first and second metal patterns of the substrate.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: May 10, 2005
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Seong Ho Kim, Woo Sup Shin, Hak Jun Lee, Yeong Geun Hwang, Tae Man Kim