Patents by Inventor Seung-Ryoung Ji

Seung-Ryoung Ji 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).

  • Color filter for a liquid crystal display and a liquid crystal display using the same
    Patent number: 6759172
    Abstract: The present invention relates to a color filter for a liquid crystal display and a liquid crystal display using the same, and more particularly to a color filter for a liquid crystal display comprising a pixel area, a black matrix, and a transparent overcoating film, wherein the transparent overcoating film comprises a thermosetting polymer obtained by mixing a) polyamic acid having siloxane terminal groups; and b) an epoxy compound having 1 to 4 epoxy groups, and a liquid crystal display using the same. The color filter for a liquid crystal display of the present invention comprises a transparent overcoating film having a wide pattern formation margin of a transparent electrode and superior heat resistance, light resistance, and transmissivity. When applied to a liquid crystal display, this color filter can offer a liquid crystal display, particularly ITO PVA mode liquid crystal display with good physical properties and is capable of realizing a wide view angle.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: July 6, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chul Huh, Byoung-Joo Kim, Seung-Ryoung Ji, Woo Choi
  • Color filter for a liquid crystal display and a liquid crystal display using the same
    Publication number: 20030218703
    Abstract: The present invention relates to a color filter for a liquid crystal display and a liquid crystal display using the same, and more particularly to a color filter for a liquid crystal display comprising a pixel area, a black matrix, and a transparent overcoating film, wherein the transparent overcoating film comprises a thermosetting polymer obtained by mixing a) polyamic acid having siloxane terminal groups; and b) an epoxy compound having 1 to 4 epoxy groups, and a liquid crystal display using the same.
    Type: Application
    Filed: January 17, 2003
    Publication date: November 27, 2003
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chul Huh, Byoung-Joo Kim, Seung-Ryoung Ji, Woo Choi