Patents by Inventor Yoonseok Kwak

Yoonseok Kwak 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: 8031138
    Abstract: A plasma display panel and a plasma display apparatus are disclosed. The plasma display panel includes a front substrate including a scan electrode and a sustain electrode positioned parallel to each other, an upper dielectric layer positioned on the scan and sustain electrodes, a rear substrate on which an address electrode is positioned to intersect the scan and sustain electrodes, a lower dielectric layer positioned on the address electrode, a barrier rib positioned between the front substrate and the rear substrate to partition a discharge cell, and a phosphor layer positioned inside the discharge cell. The upper dielectric layer includes a glass-based material and a blue pigment. The phosphor layer includes a phosphor material and MgO material.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: October 4, 2011
    Assignee: LG Electronics Inc.
    Inventors: Heekwon Kim, Woochan Cho, Yoonseok Kwak, Byunghyun Kim
  • Patent number: 7876054
    Abstract: A plasma display apparatus is disclosed. The plasma display apparatus includes a plasma display panel and a driver. The plasma display apparatus includes a scan electrode, a sustain electrode, an address electrode, a lower dielectric layer on the address electrode, and a phosphor layer on the lower dielectric layer. The phosphor layer includes a phosphor material and an additive material. The driver does not supply a sustain signal to at least one of the scan electrode and the sustain electrode during a sustain period of a first subfield of a plurality of subfields of a frame. A sustain period of at least one subfield of the plurality of subfields of the frame is omitted.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: January 25, 2011
    Assignee: LG Electronics Inc.
    Inventors: Byunghyun Kim, Yoonseok Kwak, Heekwon Kim, Jongjin Jeong
  • Publication number: 20090140954
    Abstract: A method of driving a plasma display panel displaying an image in a frame including a plurality of subfields and a plasma display apparatus are disclosed. In the method, at least one of the plurality of subfields is a selective write subfield, and at least one of the other subfields is a selective erase subfield. The plasma display panel includes a front substrate including a scan electrode and a sustain electrode, a rear substrate positioned opposite the front substrate, and a phosphor layer between the front and rear substrates. The phosphor layer includes a phosphor material and an additive material. The additive material includes at least one of magnesium oxide (MgO), zinc oxide (ZnO), silicon oxide (SiO2), titanium oxide (TiO2), yttrium oxide (Y2O3), aluminum oxide (Al2O3), lanthanum oxide (La2O3), europium oxide (EuO), cobalt oxide, iron oxide, or CNT (carbon nano tube).
    Type: Application
    Filed: July 31, 2008
    Publication date: June 4, 2009
    Applicant: LG ELECTRONICS INC.
    Inventors: Heekwon KIM, Yoonseok KWAK, Jongjin JEONG, Byunghyun KIM
  • Publication number: 20090134809
    Abstract: A plasma display apparatus is disclosed. The plasma display apparatus includes a plasma display panel and a driver. The plasma display apparatus includes a scan electrode, a sustain electrode, an address electrode, a lower dielectric layer on the address electrode, and a phosphor layer on the lower dielectric layer. The phosphor layer includes a phosphor material and an additive material. The driver does not supply a sustain signal to at least one of the scan electrode and the sustain electrode during a sustain period of a first subfield of a plurality of subfields of a frame. A sustain period of at least one subfield of the plurality of subfields of the frame is omitted.
    Type: Application
    Filed: May 7, 2008
    Publication date: May 28, 2009
    Applicant: LG ELECTRONICS INC.
    Inventors: Byunghyun KIM, Yoonseok KWAK, Heekwon KIM, Jongjin JEONG
  • Publication number: 20090102819
    Abstract: A plasma display apparatus is disclosed. The plasma display apparatus includes a plasma display panel and a driver. The plasma display panel includes a front substrate including a scan electrode and a sustain electrode, a rear substrate opposite to the front substrate, and a phosphor layer that is positioned between the front and rear substrates and includes a phosphor material and Mgo material. The driver supplies a rest signal to the scan electrode during a reset period of at least one of a plurality of subfields of a frame, supplies a scan signal to the scan electrode during an address period following the reset period, and supplies a first signal having a polarity opposite a polarity of the scan signal to the scan electrode between the reset signal and the scan signal.
    Type: Application
    Filed: April 25, 2008
    Publication date: April 23, 2009
    Inventor: Yoonseok KWAK
  • Publication number: 20090009079
    Abstract: A plasma display panel and a plasma display apparatus are disclosed. The plasma display panel includes a front substrate including a scan electrode and a sustain electrode positioned parallel to each other, an upper dielectric layer positioned on the scan and sustain electrodes, a rear substrate on which an address electrode is positioned to intersect the scan and sustain electrodes, a lower dielectric layer positioned on the address electrode, a barrier rib positioned between the front substrate and the rear substrate to partition a discharge cell, and a phosphor layer positioned inside the discharge cell. The upper dielectric layer includes a glass-based material and a blue pigment. The phosphor layer includes a phosphor material and MgO material.
    Type: Application
    Filed: October 31, 2007
    Publication date: January 8, 2009
    Inventors: Heekwon Kim, Woochan Cho, Yoonseok Kwak, Byunghyun Kim