Patents by Inventor Choon-Sook Kim

Choon-Sook Kim 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).

  • Field emission display apparatus
    Patent number: 7701454
    Abstract: A field emission display apparatus including a field emission display panel and a driving device for the field emission display panel. The driving device includes a power supply unit, the power supply unit including an abnormal current detection unit and a discharge circuit. The abnormal current detection unit generates an arc-current detection signal when the value of a current flowing between a negative anode voltage terminal of the field emission display panel and a common ground line is larger than an upper limit. The discharge circuit generates a short circuit between an anode plate of the field emission display panel and the negative anode voltage terminal when the arc-current detection signal is generated from the abnormal current detection unit.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: April 20, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Duck-Gu Cho, Deok-Hyeon Choe, Chul-Ho Lee, Mun-Seok Kang, Ji-Won Lee, Choon-Sook Kim, Dong-Hyup Jeon
  • FIELD EMISSION DISPLAY APPARATUS
    Publication number: 20080036357
    Abstract: A field emission display apparatus including a field emission display panel and a driving device for the field emission display panel. The driving device includes a power supply unit, the power supply unit including an abnormal current detection unit and a discharge circuit. The abnormal current detection unit generates an arc-current detection signal when the value of a current flowing between a negative anode voltage terminal of the field emission display panel and a common ground line is larger than an upper limit. The discharge circuit generates a short circuit between an anode plate of the field emission display panel and the negative anode voltage terminal when the arc-current detection signal is generated from the abnormal current detection unit.
    Type: Application
    Filed: August 8, 2007
    Publication date: February 14, 2008
    Inventors: Duck-Gu Cho, Deok-Hyeon Choe, Chul-Ho Lee, Mun-Seok Kang, Ji-Won Lee, Choon-Sook Kim, Dong-Hyup Jeon