Patents by Inventor Ji-Suk Kim

Ji-Suk Kim 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: 20080303753
    Abstract: Provided is a display apparatus that includes a panel assembly which has a plurality of substrates and displays images, and a filter assembly which is formed in front of the panel assembly, has a base film, a refraction control film layer that is attached to at least a surface of the base film and has a refractive index different from that of the base film, and an optical absorption layer that is formed on an outer surface of the base film or the refraction control film layer to absorb refracted incident external light. The display apparatus can increase bright room contrast by absorbing incident external light by employing a film coated with a black group color on a front surface of a panel. Also, a direct attachable filter assembly is used to remove an interface between the substrate and the filter assembly. Thus, a double image problem caused by refraction of light at the interface is prevented.
    Type: Application
    Filed: June 5, 2008
    Publication date: December 11, 2008
    Inventors: Cha-Won Hwang, Sung-Yong Lee, Ji-Suk Kim, Sang-Mi Lee
  • Publication number: 20080297905
    Abstract: An optical filter includes a base film and at least two conductive layers stacked on the base film, a first conductive layer of the two conductive layers having a first thickness and a first refractive index, and a second conductive layer of the two conductive layers having a second thickness and a second refractive index, the first and second refractive indices and the first and second thicknesses being configured to generate a destructive interference of external light reflected from the first and second conductive layers.
    Type: Application
    Filed: May 16, 2008
    Publication date: December 4, 2008
    Inventors: Cha-Won Hwang, Ji-Suk Kim, Sang-Mi Lee
  • Publication number: 20080174243
    Abstract: A plasma display panel is constructed with a first substrate on which images are displayed, a second substrate disposed facing and spaced apart from the first substrate by a certain distance, a plurality of barrier ribs disposed between the first substrate and the second substrate to define a plurality of discharge cells, a plurality of discharge electrodes extending along lines of the discharge cells, a plurality of phosphor layers formed on interior walls of the discharge cells, an optical reflective layer disposed between the phosphor layers and the second substrate, and a discharge gas filling the discharge cells. The optical reflective layer reflects the visible light that is radiated toward the second substrate, along the image display direction, i.e., towards the first substrate. In addition, the barrier ribs are made from a material having a high optical transmittance that does not absorb the visible light.
    Type: Application
    Filed: September 28, 2007
    Publication date: July 24, 2008
    Inventor: Ji-Suk Kim
  • Publication number: 20080164814
    Abstract: A plasma display device includes a radiation wave blocking structure for preventing discharged heat, generated inevitably as a result of discharge, from being emitted into the surrounding environment, thereby reducing discomfort normally experienced by users of plasma display devices due to the discharged heat. The plasma display device includes a plasma display panel (PDP) for realizing an image formed due to a discharge, and a heat prevention layer disposed on a side of an image display surface of the PDP. The heat prevention may be included in a directly attached filter or a glass filter, each of which includes a reflection prevention layer or an anti-glare layer, and an electromagnetic wave shielding layer.
    Type: Application
    Filed: January 7, 2008
    Publication date: July 10, 2008
    Inventor: Ji-Suk Kim
  • Publication number: 20070278922
    Abstract: Provided is a film type filter attached to the front surface of a plasma display panel (PDP) and formed to a thickness of about 100 ?m to about 1500 ?m in order to reduce the rate of process error.
    Type: Application
    Filed: December 19, 2006
    Publication date: December 6, 2007
    Inventor: Ji-Suk Kim
  • Publication number: 20070229401
    Abstract: A filter assembly includes a film type filter with a base film and a plurality of light absorption pattern units thereon, and an adhesion pattern layer attached to the film type filter.
    Type: Application
    Filed: March 26, 2007
    Publication date: October 4, 2007
    Inventor: Ji-Suk Kim
  • Publication number: 20070229402
    Abstract: A display apparatus includes a display and a display filter, wherein the display filter includes a base film and a plurality of beads, wherein each bead includes a light absorbing element and a transparent layer.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 4, 2007
    Inventors: Ji-Suk Kim, Cha-Won Hwang
  • Publication number: 20070228914
    Abstract: A display apparatus includes a display and a display filter, wherein the display filter includes a base film, a plurality of reflective elements, and a plurality of light absorbing elements, wherein each of the light absorbing elements corresponds to a reflective element.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 4, 2007
    Inventors: Ji-Suk Kim, Sung-Yong Lee, Cha-Won Hwang
  • Publication number: 20070200797
    Abstract: A filter may include a base film and multiple color pattern units included in the base film. The filter may also include a front pattern layer containing multiple color pattern units, where widths of cross sections of the color pattern units may be greater in parts oriented toward a front of the front pattern layer than in parts oriented toward a rear of the front pattern layer, and a rear pattern layer may be on the rear side of the front pattern layer, and the rear pattern layer may include multiple color pattern units, where widths of cross sections of the color pattern units may be greater in parts oriented toward a rear of the rear pattern layer than in parts oriented toward a front of the rear pattern layer, and a plasma display panel using the filter.
    Type: Application
    Filed: February 27, 2007
    Publication date: August 30, 2007
    Inventors: Ji-Suk Kim, Sung-Yong Lee, Cha-Won Hwang
  • Publication number: 20070145875
    Abstract: Provided are a film type filter and having a colored base film in order to reduce double image reflection when attached to a front surface of a plasma display panel (PDP) and to reduce the weight of a plasma display apparatus including the PDP and the film type filter, and a plasma display apparatus including the same.
    Type: Application
    Filed: September 27, 2006
    Publication date: June 28, 2007
    Inventor: Ji-Suk Kim
  • Publication number: 20060286465
    Abstract: Provided are a film type filter which is light and can reduce the problem of double image reflection in a plasma display apparatus, and a plasma display apparatus having the film type filter. The film type filter includes a non-glass base film and an antiglare layer located over the non-glass base film.
    Type: Application
    Filed: May 30, 2006
    Publication date: December 21, 2006
    Inventor: Ji-Suk Kim
  • Publication number: 20060286371
    Abstract: Provided is an MRT film filter that has improved interface characteristics, produces fewer dual images, and has reduced manufacturing costs. The MRT film filter includes: a base filter; an anti-glare layer disposed on top of the base film; a conductive layer that is disposed on one side of the base film and blocks electromagnetic waves; an MRT film disposed below the base film to be adhered to a flat display apparatus; and an adhesive adapted to fix the MRT film to the base film. Also provided is a plasma display device comprising the MRT film filter.
    Type: Application
    Filed: May 12, 2006
    Publication date: December 21, 2006
    Inventors: Ji-Suk Kim, Sung-Yong Lee