Patents by Inventor Gi Bum Lee

Gi Bum Lee 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: 7821477
    Abstract: The present invention relates to a plasma display apparatus and a driving method thereof in which an erroneous discharge, a misdischarge and an abnormal discharge are prevented, a darkroom contrast is increased, an operation margin is widen, and an influence of a lower substrate wall charge is reduced in a sustain discharge. The plasma display apparatus and its driving method is characterized in that when the plasma display panel has a second temperature higher than a first temperature, a period between the last sustain pulse generated during a sustain period of (n?1)th sub-field (ā€œnā€ is a positive integer) and an initialization signal generated during a reset period of nth sub-field is more lengthened than when it has the first temperature. The plasma display apparatus and its driving method is characterized in that a pre sustain pulse (PRESUSP) rising from a sustain bias voltage (Vzb) is applied to the second electrode in the sustain period.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: October 26, 2010
    Assignee: LG Electronics Inc.
    Inventors: Yun Kwon Jung, Gi Bum Lee, Muk Hee Kim
  • Patent number: 7482752
    Abstract: In a plasma display panel, a space between a pair of sustain electrodes of a non-valid screen is different from a space between a pair of sustain electrodes of a valid screen. Accordingly, when discharges occur, impurities present inside the plasma display panel can be attached on the sustain electrodes of the non-valid screen, and thus, occurrence of an erroneous discharge at the valid screen can be prevented.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: January 27, 2009
    Assignee: LG Electronics Inc.
    Inventors: Seok Dong Kang, Gi Bum Lee, Jae Young Oh, Hong Tak Kim
  • Patent number: 7247988
    Abstract: A plasma display panel for improving a color coordinates correction and a color temperature is disclosed. In the plasma display panel, a vertical barrier rib separates red, green and blue discharge cells from each other in a longitudinal direction. A horizontal barrier rib is provided between the vertical barrier ribs to separate the red, green and blue discharge cells from each other in a wide direction. The horizontal barrier rib has a first horizontal barrier rib provided between the red discharge cells, a second horizontal barrier rib provided between the green discharge cells, and a third horizontal barrier rib provided between the blue discharge cells and having a smaller width than the first and second horizontal barrier ribs.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: July 24, 2007
    Assignee: LG Electronics Inc.
    Inventors: Gi Bum Lee, Jin Young Kim
  • Patent number: 7132794
    Abstract: A plasma display panel for improving a color coordinates correction and a color temperature is disclosed. In the plasma display panel, a vertical barrier rib separates red, green and blue discharge cells from each other in a longitudinal direction. A horizontal barrier rib is provided between the vertical barrier ribs to separate the red, green and blue discharge cells from each other in a wide direction. The horizontal barrier rib has a first horizontal barrier rib provided between the red discharge cells, a second horizontal barrier rib provided between the green discharge cells, and a third horizontal barrier rib provided between the blue discharge cells and having a smaller width than the first and second horizontal barrier ribs.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: November 7, 2006
    Assignee: LG Electronics Inc.
    Inventors: Gi Bum Lee, Jin Young Kim