Patents by Inventor Hun-Suk Yoo

Hun-Suk 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).

  • Publication number: 20050212425
    Abstract: A plasma display panel that improves luminance efficiency by increasing a plasma density by forming a magnetic field within a discharge space includes: a front substrate, a rear substrate, barrier ribs, upper sidewalls, address electrodes, discharge electrodes, a phosphor layer, and magnets. The front and rear substrates are arranged at a predetermined distance apart to face each other. The barrier ribs are arranged between the front and rear substrates to partition a space formed between the front and rear substrates into a plurality of discharge spaces. The upper sidewalls are arranged between the barrier ribs and the front substrate to define the discharge spaces in cooperation with the barrier ribs. The address electrodes extend in one direction over the rear substrate.
    Type: Application
    Filed: March 9, 2005
    Publication date: September 29, 2005
    Inventors: Hun-Suk Yoo, Kyoung-Doo Kang
  • Publication number: 20050213010
    Abstract: A plasma display panel includes a substrate that includes a first and second substrate disposed facing each other, a plurality of discharge electrodes disposed along a circumference of a discharge cell formed between the first and second substrate, a dielectric wall that buries the discharge electrodes, and a secondary electron emission amplifying unit that emits the secondary electrons into the discharge space and is formed at least on a portion of a surface that contacts plasma generated in the discharge space during a discharge. The discharge voltage can be reduced due to an increase in the emission of the secondary electrons.
    Type: Application
    Filed: March 25, 2005
    Publication date: September 29, 2005
    Inventors: Jae-Ik Kwon, Seo-Young Choi, Hun-Suk Yoo
  • Publication number: 20050190120
    Abstract: A method of driving a plasma display panel during an address period. In order to avoid address discharge failure at the temporal end of an address period, the voltages applied to the scanning electrodes and to the bias electrodes are decreased throughout the address period. By ramping these voltages down towards the end of the address period, mis addressing is less likely to occur. Other modifications to the driving waveforms include altering the amplitude and/or the temporal width of the address pulses and the scanning pulses. Such techniques allow the address period to remain short while preventing failure during the address period.
    Type: Application
    Filed: January 28, 2005
    Publication date: September 1, 2005
    Inventor: Hun-Suk Yoo
  • Publication number: 20050140581
    Abstract: A method of driving a plasma display panel in which a plurality of sub-fields for time division gray-scale display exist in each frame which is a display period, and each of the sub-fields includes a reset period, an address period and a discharge-sustaining period. In the discharge-sustaining period, a sustaining pulse of a second level voltage based on a first level voltage is supplied to each Y-electrode line and X-electrode line according to a Y-supplied electrical-potential period and an X-supplied electrical-potential period. Each Y-supplied and X-supplied electrical-potential period includes a rising time to rise from the first level voltage to the second level voltage, a sustaining time to sustain the second level voltage, and a falling time to fall from the second level voltage to the first level voltage.
    Type: Application
    Filed: November 24, 2004
    Publication date: June 30, 2005
    Inventors: Kyoung-Doo Kang, Hun-Suk Yoo, Won-Ju Yi
  • Publication number: 20050116646
    Abstract: A plasma display panel capable of being fast driven with low voltage by reducing a distance between an address electrode and a Y electrode. The plasma display panel includes a pair of substrates, discharge electrodes, and an address electrode. The substrates are arranged at a predetermined interval to face each other and form a plurality of discharge spaces between facing surfaces of the substrates. The discharge electrodes are arranged at predetermined intervals between the substrates. The address electrode is arranged a predetermined distance apart from the discharge electrodes in a direction where the substrates are arranged, and defines each of the discharge spaces in cooperation with the discharge electrodes.
    Type: Application
    Filed: November 24, 2004
    Publication date: June 2, 2005
    Inventors: Hun-Suk Yoo, Won-Ju Yi, Kyoung-Doo Kang
  • Publication number: 20050035931
    Abstract: Disclosed is a PDP driving method and a plasma display device for providing stable discharge characteristics by varying gradients of PDP driving waveforms according to the external temperature of the PDP. A protection film of MgO reduces the secondary emission coefficient as the temperature is reduced. In order to compensate for the reduction, the external temperature is measured by an external temperature sensor, and the gradients in a falling period and/or the rising period during a reset period of a driving voltage waveform are modified according to the measured external temperature. In detail, the gradients in the falling period and/or the rising period of the reset period are varied to be less steep when the measured temperature is reduced to below a predetermined level such as freezing or ?10 degrees C.
    Type: Application
    Filed: August 12, 2004
    Publication date: February 17, 2005
    Inventors: Hun-Suk Yoo, Kyoung-Doo Kang, Woo-Tae Kim, Jae-Ik Kwon, Seok-Gyun Woo
  • Publication number: 20050029939
    Abstract: A plasma display panel. A first substrate and a second substrate are provided opposing one another with a predetermined gap therebetween. Address electrodes are formed on the second substrate. Barrier ribs are mounted between the first substrate and the second substrate defining a plurality of discharge cells. Phosphor layers are formed within the discharge cells. Discharge sustain electrodes are formed on the first substrate. The discharge sustain electrodes include bus electrodes that extend such that a pair of the bus electrodes is provided for each of the discharge cells, and protrusion electrodes extending from each of the bus electrodes such that a pair of opposing protrusion electrodes is formed within an area corresponding to each discharge cell. A distal end of each protrusion electrode includes an indentation such that a gap is formed between the pair of opposing protrusion electrodes, and an aperture is formed in each protrusion electrode.
    Type: Application
    Filed: July 2, 2004
    Publication date: February 10, 2005
    Inventors: Seok-Gyun Woo, Tae-Kyoung Kang, Woo-Tae Kim, Kyoung-Doo Kang, Hun-Suk Yoo, Jae-Ik Kwon
  • Publication number: 20050017637
    Abstract: A plasma display panel. A first substrate and a second substrate are provided opposing one another with a predetermined gap therebetween. Address electrodes are formed on the second substrate. Barrier ribs are mounted between the first substrate and the second substrate, the barrier ribs defining a plurality of discharge cells. Also, red, green, and blue phosphor layers are formed within each of the discharge cells. Discharge sustain electrodes are formed on the first substrate. The barrier ribs comprise first barrier rib members formed substantially parallel to the direction of the address electrodes, and second barrier rib members obliquely connected to the first barrier rib members and intersecting over the address electrodes. The second barrier rib members are formed to different widths according to discharge cell color such that red, green, and blue discharge cells have different volumes.
    Type: Application
    Filed: June 23, 2004
    Publication date: January 27, 2005
    Inventors: Kyoung-Doo Kang, Woo-Tae Kim, Hun-Suk Yoo, Seok-Gyun Woo, Jae-Ik Kwon
  • Publication number: 20050001549
    Abstract: A plasma display panel with first and second substrates facing each other, and address electrodes formed on the second substrate. A partition wall is disposed between the first and the second substrates to separately partition a plurality of discharge cells. A phosphor layer is formed within each discharge cell. Discharge sustain electrodes are formed on the first substrate. A thickness of the phosphor layer is designed so that the resulting internal space has a shape corresponding to the diffusion shape of the plasma discharge generated within the discharge cell to optimize brightness of the image and to maximize light emission efficiency.
    Type: Application
    Filed: June 23, 2004
    Publication date: January 6, 2005
    Inventors: Seok-Gyun Woo, Kyoung-Doo Kang, Woo-Tae Kim, Hun-Suk Yoo, Jae-Ik Kwon
  • Publication number: 20050001551
    Abstract: A plasma display panel. A first substrate and a second substrate are provided opposing one another with a predetermined gap therebetween. Address electrodes are formed on the second substrate. Barrier ribs are mounted between the first substrate and the second substrate, the barrier ribs defining a plurality of discharge cells and a plurality of non-discharge regions. Phosphor layers are formed within each of the discharge cells. Discharge sustain electrodes are formed on the first substrate. The non-discharge regions are formed in areas encompassed by discharge cell abscissas that pass through centers of adjacent discharge cells and discharge cell ordinates that pass through centers of adjacent discharge cells, the non-discharge regions having a width that is at least as large as a width of an end of barrier ribs. Also, a transverse barrier rib is formed extending between each pair of adjacent rows of discharge cells.
    Type: Application
    Filed: July 2, 2004
    Publication date: January 6, 2005
    Inventors: Woo-Tae Kim, Kyoung-Doo Kang, Hun-Suk Yoo, Seok-Gyun Woo, Jae-Ik Kwon
  • Publication number: 20040263078
    Abstract: A plasma display panel. A first substrate and a second substrate are provided opposing one another with a predetermined gap therebetween. Address electrodes are formed on the second substrate. Barrier ribs are mounted between the first substrate and the second substrate, the barrier ribs defining a plurality of discharge cells and a plurality of non-discharge regions. Phosphor layers are formed within each of the discharge cells. Discharge sustain electrodes are formed on the first substrate. The non-discharge regions are formed in areas encompassed by discharge cell abscissas and ordinates that pass through centers of each of the discharge cells. Also, external light absorbing members are formed between the second substrate and the barrier ribs layer at areas corresponding to locations of the non-discharge regions.
    Type: Application
    Filed: June 14, 2004
    Publication date: December 30, 2004
    Inventors: Seok-Gyun Woo, Woo-Tae Kim, Kyoung-Doo Kang, Hun-Suk Yoo, Jae-Ik Kwon, Tae-Joung Kweon, Eun-Gi Heo
  • Publication number: 20040256989
    Abstract: A plasma display panel. First and second substrates are provided opposing one another. Address electrodes are formed on the second substrate. Barrier ribs are mounted between the first and second substrates defining discharge cells and non-discharge regions. Phosphor layers are formed within each of the discharge cells. Discharge sustain electrodes are formed on the first substrate. The non-discharge regions are formed in areas encompassed by discharge cell abscissas and ordinates passing through centers of the discharge cells. Further, the discharge cells are formed such that ends thereof increasingly decrease in width as a distance from centers of the discharge cells is increased. The discharge sustain electrodes include bus electrodes that extend perpendicular to the address electrodes and outside areas of the discharge cells but across areas of the non-discharge regions, and protrusion electrodes formed extending from each of the bus electrodes.
    Type: Application
    Filed: June 18, 2004
    Publication date: December 23, 2004
    Inventors: Woo-Tae Kim, Kyoung-Doo Kang, Hun-Suk Yoo, Seok-Gyun Woo, Jae-Ik Kwon
  • Publication number: 20040201350
    Abstract: A plasma display panel. A first substrate and a second substrate are provided opposing one another with a predetermined gap therebetween. Address electrodes are formed on the second substrate. Barrier ribs are mounted between the first substrate and the second substrate, the barrier ribs defining a plurality of discharge cells and a plurality of non-discharge regions. Phosphor layers are formed within each of the discharge cells. Discharge sustain electrodes are formed on the first substrate. The non-discharge regions are formed in areas encompassed by discharge cell abscissas and ordinates that pass through centers of each of the discharge cells. Further, each of the discharge cells is formed such that ends thereof increasingly decrease in width along a direction the discharge sustain electrodes are formed as a distance from a center of the discharge cells is increased along a direction the address electrodes are formed.
    Type: Application
    Filed: January 2, 2004
    Publication date: October 14, 2004
    Inventors: Jae-Ik Kwon, Kyoung-Doo Kang, Seok-Gyun Woo, Woo-Tae Kim, Hun-Suk Yoo
  • Publication number: 20040135509
    Abstract: A plasma display panel includes a first substrate and a second substrate opposing one another with a predetermined gap therebetween. Address electrodes are formed on the second substrate. Barrier ribs are mounted in the gap between the first substrate and the second substrate to define a plurality of discharge cells. Phosphor layers are formed in each of the discharge cells. Discharge sustain electrodes are formed in a direction intersecting the address electrodes and paired such that each of the discharge cells is in communication with a pair of the discharge sustain electrodes. Each of the discharge sustain electrodes include extension sections that extend into the discharge cells such that a pair of opposing extension sections is formed in each of the discharge cells. Distal ends of each of the extension sections extended from at least one of each pair of the bus electrodes are formed having a concave section.
    Type: Application
    Filed: December 23, 2003
    Publication date: July 15, 2004
    Inventors: Jae-Ik Kwon, Kyoung-Doo Kang, Woo-Tae Kim, Hun-Suk Yoo, Seok-Gyun Woo
  • Publication number: 20040104674
    Abstract: A plasma display panel reduces noise caused by the formation of minute gaps between the first substrate and the second substrate. The plasma display panel includes a first substrate and a second substrate opposing one another with a predetermined gap therebetween, and a sealant formed on opposing surfaces of the first substrate and the second substrate. The sealant is formed around outer circumferential areas of the first substrate and the second substrate to seal the first substrate and the second substrate together. The sealant is formed of regions having a first width of substantially the same size and of regions having a second width greater than the size of the first width.
    Type: Application
    Filed: November 25, 2003
    Publication date: June 3, 2004
    Inventors: Hun-Suk Yoo, Tae-Kyoung Kang
  • Patent number: 6741032
    Abstract: A plasma display panel having a helicon plasma source. First and second substrates are mounted substantially in parallel with a predetermined gap therebetween. A plurality of address electrodes are formed on a surface of the first substrate opposing the second substrate. A first dielectric layer is formed covering the address electrodes. A plurality of barrier ribs are formed on the first dielectric layer at a predetermined height, the barrier ribs defining discharge cells. A phosphor layer is formed in the discharge cells. A plurality of discharge sustain electrodes are formed on a surface of the second substrate opposing the first substrate. A second dielectric layer is formed on the second substrate covering the discharge sustain electrodes. Discharge gas injected into the discharge cells. Antenna and magnet assemblies are provided to increase a plasma density in the discharge cells.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: May 25, 2004
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Hun-Suk Yoo
  • Publication number: 20030107319
    Abstract: A plasma display panel having a helicon plasma source. First and second substrates are mounted substantially in parallel with a predetermined gap therebetween. A plurality of address electrodes are formed on a surface of the first substrate opposing the second substrate. A first dielectric layer is formed covering the address electrodes. A plurality of barrier ribs are formed on the first dielectric layer at a predetermined height, the barrier ribs defining discharge cells. A phosphor layer is formed in the discharge cells. A plurality of discharge sustain electrodes are formed on a surface of the second substrate opposing the first substrate. A second dielectric layer is formed on the second substrate covering the discharge sustain electrodes. Discharge gas injected into the discharge cells. Antenna and magnet assemblies are provided to increase a plasma density in the discharge cells.
    Type: Application
    Filed: December 3, 2002
    Publication date: June 12, 2003
    Inventor: Hun-Suk Yoo