Patents by Inventor Yeun Ho Yoo

Yeun Ho 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).

  • Patent number: 6483489
    Abstract: A radio frequency driving circuit and a radio frequency signal switching method that are capable of easily controlling a radio frequency signal in a radio frequency plasma display panel. In the method, a turning-on signal is applied before the radio frequency signal is completely erased by applying a turning-off signal to a radio frequency generator. Accordingly, a rising time of the radio frequency signal is reduced, so that the radio frequency signal can be switched to be suitable for the PDP driving.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: November 19, 2002
    Assignee: LG Electronics Inc.
    Inventors: Yeun Ho Yoo, Jeong Pil Choi
  • Patent number: 6476562
    Abstract: A plasma display panel capable of utilizing a radio frequency discharge efficiently and driving method and apparatus thereof are disclosed. In the PDP, each cell is provided with a radio frequency electrode for applying a radio frequency voltage, a data electrode for applying a data voltage, a scanning electrode for applying a scanning voltage, and a discharge space into which discharge gases for causing a gas discharge are injected. Accordingly, a distance between two electrodes used for a radio frequency discharge is assured sufficiently to utilize a smooth radio frequency discharge as a display discharge, thereby improving the brightness and the discharge efficiency. Also, an alternating current discharge having a control easiness is used for the address discharge while a radio frequency discharge having a good efficiency is used for a sustaining discharge, thereby utilizing advantages in the two discharge.
    Type: Grant
    Filed: July 27, 1999
    Date of Patent: November 5, 2002
    Assignee: LG Electronics Inc.
    Inventors: Yeun Ho Yoo, Jun Yeong Yoo, Jung Won Kang, Jeong Pil Choi
  • Patent number: 6433763
    Abstract: A plasma display panel drive art capable of restraining a contour noise in a picture displayed on a PDP and reducing a maximum power consumption. The drive art allows one frame to be consisted of a plurality of sub fields each having a different weighting value for brightness so as to display a video signal of gray scale. The plurality of the sub fields are differently arranged along with a distribution of logical values in the video data for one frame, thereby dividing the one frame into a display interval and a non-display interval. Also, the plurality of the sub fields are equal to sub fields without a sub field having a least weighting value for the brightness.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: August 13, 2002
    Assignee: LG Electronics, Inc.
    Inventors: Geun-Soo Lim, Hwan Yu Kim, Jeong Pil Choi, Yeun Ho Yoo, Seong Hak Moon
  • Patent number: 6320313
    Abstract: A plasma display panel with a bilateral display function that is adaptive for displaying a picture in two directions and a driving apparatus thereof are disclosed. In the plasma display panel, a first plasma display panel displays a picture by a discharge. A second plasma display panel is installed such that its display face is opposed to that of the first plasma display panel. An optical shutter is installed between the first and second plasma display panels to transmit or shut off lights incident thereto from the first and second plasma display panels.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: November 20, 2001
    Assignee: LG Electronics Inc.
    Inventors: Yeun Ho Yoo, Geun Soo Lim, Seong Hak Moon, Jeong Pil Choi, Hwan Yu Kim
  • Patent number: 6271810
    Abstract: A plasma display panel that is adaptive for utilizing a radio frequency discharge. In the panel, a data is applied to a data electrode, and a scanning electrode is arranged perpendicularly to the data electrode. The scanning electrode causes an address discharge along with the data electrode by applying a scanning pulse. A radio frequency signal is applied to a radio frequency electrode, and a radio frequency reference electrode causes a radio frequency discharge along with the radio frequency electrode by applying a reference voltage of the radio frequency signal.
    Type: Grant
    Filed: July 27, 1999
    Date of Patent: August 7, 2001
    Assignee: LG Electronics Inc.
    Inventors: Yeun Ho Yoo, Jun Yeong Yoo, Jeong Pil Choi