Patents by Inventor Won-Gu Cho

Won-Gu Cho 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: 20040165138
    Abstract: In a drive IC and a display device having the same, the drive IC includes a plurality of bumps disposed on a lower surface of the drive IC and aligned in a plurality of rows along an edge of the drive IC. The bumps aligned in different rows from each other are juxtaposed in a direction perpendicular to a direction in which the bumps are aligned. Accordingly, when the drive IC is mounted on a display panel using an anisotropic conductive film, the anisotropic conductive film may be smoothly flowed through a space defined by the bumps of the drive IC, thereby improving electric properties of the drive IC and display device.
    Type: Application
    Filed: November 24, 2003
    Publication date: August 26, 2004
    Inventors: Seong-Yong Hwang, Sung-Chul Kang, Weon-Sik Oh, Cheol-Yong Jeong, Jin-Suk Lee, Ju-Young Yoon, Won-Gu Cho
  • Patent number: 6771348
    Abstract: Disclosed are a displaying substrate and a liquid crystal display device having the same. A pad portion formed on the displaying substrate has a plurality of via holes for exposing a pad metal layer. A width of the via hole is smaller than a diameter of a conductive particle. Where the width of the via hole is larger than the diameter of the conductive particle, a depth of the via hole is smaller than the diameter of the conductive particle. Thus, a driving failure which may occur in the pad portion is prevented while maintaining a deformation ratio of the conductive particle at about 20˜60%, thereby enhancing a connecting force between the pad portion and a circuit substrate.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: August 3, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Weon-Sik Oh, Hyeong-Suk Yoo, Ju-Young Yoon, Won-Gu Cho
  • Publication number: 20030164919
    Abstract: Disclosed are a displaying substrate and a liquid crystal display device having the same. A pad portion formed on the displaying substrate has a plurality of via holes for exposing a pad metal layer. A width of the via hole is smaller than a diameter of a conductive particle. Where the width of the via hole is larger than the diameter of the conductive particle, a depth of the via hole is smaller than the diameter of the conductive particle. Thus, a driving failure which may occur in the pad portion is prevented while maintaining a deformation ratio of the conductive particle at about 20˜60%, thereby enhancing a connecting force between the pad portion and a circuit substrate.
    Type: Application
    Filed: May 30, 2002
    Publication date: September 4, 2003
    Inventors: Weon-Sik Oh, Hyeong-Suk Yoo, Ju-Young Yoon, Won-Gu Cho