Patents by Inventor Tatsuhiko Kawasaki

Tatsuhiko Kawasaki 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: 6903709
    Abstract: A plasma display panel and a method of driving the same are provided in which circuit elements necessary for controlling potentials of scan electrodes can be reduced without using a complicated multilayered wiring. In the plasma display panel, k (k?2) data electrodes, each of which is continuous from one end of a column to the other end, are arranged for each column of a matrix display. All scan electrodes in a display screen are classified into k groups, and one of k groups is assigned to k data electrodes in each column. Each data electrode is crossed with or opposed to scan electrodes belonging to the group that is assigned to the data electrode without overlapping a partition in a plan view and is crossed with or opposed to other scan electrodes with overlapping the partition.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: June 7, 2005
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Tatsuhiko Kawasaki, Hitoshi Hirakawa, Takashi Shiizaki, Takashi Sasaki
  • Patent number: 6900797
    Abstract: A progressive display is realized that has an electrode structure in which two neighboring rows share a display electrode. A PDP has display electrodes arranged so that two neighboring rows share one electrode for display, and the display electrodes crosses an address electrode in each column. A row selection is performed by temporarily biasing one display electrode Yj of the electrode pair corresponding to the selected row to the selecting potential Vy, while an addressing is performed by controlling the potential of the address electrode Ak in accordance with the display data. At that time, the cell-selecting voltage Vay that is applied to the interelectrode AY between the display electrode Yj and the address electrode Ak made lower than the discharge starting voltage VAY of the interelectrode AY.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: May 31, 2005
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Hitoshi Hirakawa, Takashi Shiizaki, Tatsuhiko Kawasaki, Satoru Nishimura
  • Publication number: 20030174101
    Abstract: A driving method of the present invention is adapted to a plasma display panel which includes first and second electrodes formed on a substrate, third electrodes formed in a direction intersecting the first and second electrodes, and a dielectric layer covering the first and second electrodes. The driving method includes the steps of generating an address discharge between the first and the third electrode to select a predetermined cell and sustain discharges between the first and the second electrode to produce light for display, and controlling the plasma display panel such that the discharge intensity of a sustain discharge in which the second electrode serves as the anode is smaller than the discharge intensity of a sustain discharge in which the first electrode serves as the anode.
    Type: Application
    Filed: March 4, 2003
    Publication date: September 18, 2003
    Applicant: Fujitsu Hitachi Plasma Display Limited
    Inventors: Tatsuhiko Kawasaki, Takashi Sasaki
  • Publication number: 20020070906
    Abstract: A plasma display panel and a method of driving the same are provided in which circuit elements necessary for controlling potentials of scan electrodes can be reduced without using a complicated multilayered wiring. In the plasma display panel, k (k≧2) data electrodes, each of which is continuous from one end of a column to the other end, are arranged for each column of a matrix display. All scan electrodes in a display screen are classified into k groups, and one of k groups is assigned to k data electrodes in each column. Each data electrode is crossed with or opposed to scan electrodes belonging to the group that is assigned to the data electrode without overlapping a partition in a plan view and is crossed with or opposed to other scan electrodes with overlapping the partition.
    Type: Application
    Filed: April 25, 2001
    Publication date: June 13, 2002
    Applicant: FUJITSU HITACHI PLASMA DISPLAY LIMITED
    Inventors: Tatsuhiko Kawasaki, Hitoshi Hirakawa, Takashi Shiizaki, Takashi Sasaki
  • Publication number: 20020039086
    Abstract: A progressive display is realized that has an electrode structure in which two neighboring rows share a display electrode. A PDP has display electrodes arranged so that two neighboring rows share one electrode for display, and the display electrodes crosses an address electrode in each column. A row selection is performed by temporarily biasing one display electrode Yj of the electrode pair corresponding to the selected row to the selecting potential Vy, while an addressing is performed by controlling the potential of the address electrode Ak in accordance with the display data. At that time, the cell-selecting voltage Vay that is applied to the interelectrode AY between the display electrode Yj and the address electrode Ak made lower than the discharge starting voltage VAY of the interelectrode AY.
    Type: Application
    Filed: January 30, 2001
    Publication date: April 4, 2002
    Inventors: Hitoshi Hirakawa, Takashi Shiizaki, Tatsuhiko Kawasaki, Satoru Nishimura