Patents by Inventor Jeong-guen Yoo

Jeong-guen Yoo 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).

  • Method of driving anti-ferroelectric liquid crystal display panel for equalizing transmittance of the panel
    Patent number: 6914590
    Abstract: A method of driving an anti-ferroelectric liquid crystal display (LCD) panel is provided that provides uniform transmittance display characteristics. In the anti-ferroelectric LCD panel, signal electrode lines are arranged in parallel above anti-ferroelectric liquid crystal cells, and at least first and second scan electrode lines are arranged below the anti-ferroelectric liquid crystal cells perpendicular to the signal electrode lines. The method includes a first driving step and a second driving step, which are repeated. Each of the first and second driving steps includes a scanning step, an inversion step, and an iteration step. In the scanning step, a scan selection voltage is applied to the first scan electrode line, and simultaneously, display data signals are applied to the signal electrode lines.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: July 5, 2005
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jeong-guen Yoo, Sung-chon Park
  • Method of driving anti-ferroelectric liquid crystal display panel for equalizing transmittance of the panel
    Publication number: 20030063060
    Abstract: A method of driving an anti-ferroelectric liquid crystal display (LCD) panel is provided that provides uniform transmittance display characteristics. In the anti-ferroelectric LCD panel, signal electrode lines are arranged in parallel above anti-ferroelectric liquid crystal cells, and at least first and second scan electrode lines are arranged below the anti-ferroelectric liquid crystal cells perpendicular to the signal electrode lines. The method includes a first driving step and a second driving step, which are repeated. Each of the first and second driving steps includes a scanning step, an inversion step, and an iteration step. In the scanning step, a scan selection voltage is applied to the first scan electrode line, and simultaneously, display data signals are applied to the signal electrode lines.
    Type: Application
    Filed: July 12, 2002
    Publication date: April 3, 2003
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jeong-guen Yoo, Sung-chon Park