Patents by Inventor Pyung Hun Kim

Pyung Hun 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).

  • Patent number: 8659733
    Abstract: A liquid crystal display device includes: a plurality of gate lines and a plurality of data lines formed horizontally and vertically to define pixel areas on a substrate; thin film transistors (TFTs) formed at crossings of the gate lines and data lines; a common line formed to be parallel to the gate line; a common electrode formed at each pixel area, connected to the gate line, and having one end overlapping with the data line; and a pixel electrode connected to the TFT and formed to be parallel to the common electrode between the common electrodes formed at each pixel area. The common electrode has a mesh structure to thus reduce a potential deviation of common electrodes in a panel and restrain a reduction in an aperture ratio.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: February 25, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Young-Jik Jo, Pyung-Hun Kim
  • Patent number: 8373169
    Abstract: A thin film transistor serving as a switching device provided in respective pixels of an active matrix-type liquid crystal display, the thin film transistor including a source electrode overlapping the gate electrode, a first semiconductor layer and contacting one of the two parts of a second impurity semiconductor layer, and a drain electrode overlapping the gate electrode, the first semiconductor layer and contacting another one of the two parts of the second semiconductor layer, wherein the source and drain electrode define a channel region in the first semiconductor layer having a length between the first and second portions of the first semiconductor layer and a width same as a width of at least one of the two parts of the second semiconductor layer such that a ratio of the width to the length (W/L) of the channel region is in a range of 8 through 10.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: February 12, 2013
    Assignee: LG Display Co., Ltd.
    Inventor: Pyung Hun Kim
  • Patent number: 8081286
    Abstract: A liquid crystal display panel includes a color filter array substrate having a first column spacer and a second column spacer, the first column spacer being partially inserted in a first hole, and a thin film transistor (TFT) array substrate facing the color filter array substrate having a protective passivation film.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: December 20, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Pyung Hun Kim, Young Hoon Lee, Jae Wook Kim
  • Patent number: 7609357
    Abstract: Disclosed is a liquid crystal panel having a dual column spacer and a manufacturing method thereof. The liquid crystal panel includes a first substrate on which a polished organic insulation film is formed on the entire surface of a pixel region including a TFT. The first substrate includes a contact hole formed through the organic insulation film; a second substrate disposed opposite to the first substrate and having a black matrix and a color filter; a first column spacer formed on the second substrate to contact the first substrate to maintain a gap between the first substrate and the second substrate; and a second column spacer formed on the second substrate on an area of the second substrate corresponding to the contact hole on the first substrate. The second column spacer is separated from the first substrate by a predetermined distance.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: October 27, 2009
    Assignee: LG Display Co., Ltd.
    Inventor: Pyung Hun Kim
  • Publication number: 20090040449
    Abstract: A liquid crystal display device includes: a plurality of gate lines and a plurality of data lines formed horizontally and vertically to define pixel areas on a substrate; thin film transistors (TFTs) formed at crossings of the gate lines and data lines; a common line formed to be parallel to the gate line; a common electrode formed at each pixel area, connected to the gate line, and having one end overlapping with the data line; and a pixel electrode connected to the TFT and formed to be parallel to the common electrode between the common electrodes formed at each pixel area. The common electrode has a mesh structure to thus reduce a potential deviation of common electrodes in a panel and restrain a reduction in an aperture ratio.
    Type: Application
    Filed: June 20, 2008
    Publication date: February 12, 2009
    Inventors: Young-Jik Jo, Pyung-Hun Kim
  • Patent number: 7443479
    Abstract: A liquid crystal display (LCD) device includes a gate line and a data line crossing each other, a gate driving unit and a data driving unit outputting signals to the gate line and the data line, a gate pad portion electrically connected to the gate line and having a first contact hole, a data pad portion electrically connected to the data line and having a second contact hole, a first output terminal of the gate driving unit completely covering the first contact hole, a second output terminal of the data driving unit completely covering the second contact hole, a first conductive film electrically connecting the first output terminal and the gate pad portion, and a second conductive film electrically connecting the second output terminal and the data pad portion.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: October 28, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Jin-Cheol Hong, Sung-Il Park, Pyung-Hun Kim, Kwang-Soon Park
  • Patent number: 7239363
    Abstract: A liquid crystal display device including a color filter is disclosed in the present invention. The liquid crystal display device includes a first substrate where a plurality of sub-pixels are defined thereon, a second substrate spaced apart from the first substrate, and a color filter layer on the second substrate, facing into the first substrate, and having a red sub-color filter, a green sub-color filter, and a blue sub-color filter, wherein one blue sub-color filter corresponds to two sub-pixels adjacent to each other in a first direction perpendicular to a second direction where the red, green, and blue sub-color filters are alternately located.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: July 3, 2007
    Assignee: LG.Philips LCD Co., Ltd
    Inventors: Kwang-Soon Park, Pyung-Hun Kim
  • Patent number: 6950162
    Abstract: A liquid crystal display device includes a plurality of gate lines extending along a longitudinal direction and disposed at first intervals along a transverse direction, a plurality of data lines extending along the transverse direction to cross the plurality of gate lines, a first set of two adjacent data lines transmitting data signals of a first phase and a second set of two adjacent data lines transmitting data signals of a second phase inverted to the first phase, a plurality of pixels, each disposed in a pixel region defined by the crossing of the gate and data lines, and a plurality of thin film transistors, each connected to one of the plurality of pixels.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: September 27, 2005
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Pyung Hun Kim
  • Publication number: 20050041189
    Abstract: A liquid crystal display (LCD) device includes a gate line and a data line crossing each other, a gate driving unit and a data driving unit outputting signals to the gate line and the data line, a gate pad portion electrically connected to the gate line and having a first contact hole, a data pad portion electrically connected to the data line and having a second contact hole, a first output terminal of the gate driving unit completely covering the first contact hole, a second output terminal of the data driving unit completely covering the second contact hole, a first conductive film electrically connecting the first output terminal and the gate pad portion, and a second conductive film electrically connecting the second output terminal and the data pad portion.
    Type: Application
    Filed: June 30, 2004
    Publication date: February 24, 2005
    Inventors: Jin-Cheol Hong, Sung-Il Park, Pyung-Hun Kim, Kwang-Soon Park
  • Publication number: 20040125278
    Abstract: A liquid crystal display device including a color filter is disclosed in the present invention. The liquid crystal display device includes a first substrate where a plurality of sub-pixels are defined thereon, a second substrate spaced apart from the first substrate, and a color filter layer on the second substrate, facing into the first substrate, and having a red sub-color filter, a green sub-color filter, and a blue sub-color filter, wherein one blue sub-color filter corresponds to two sub-pixels adjacent to each other in a first direction perpendicular to a second direction where the red, green, and blue sub-color filters are alternately located.
    Type: Application
    Filed: December 11, 2003
    Publication date: July 1, 2004
    Applicant: LG.Philips LCD Co., Ltd.
    Inventors: Kwang-Soon Park, Pyung-Hun Kim
  • Publication number: 20030090602
    Abstract: A liquid crystal display device includes a plurality of gate lines extending along a longitudinal direction and disposed at first intervals along a transverse direction, a plurality of data lines extending along the transverse direction to cross the plurality of gate lines, a first set of two adjacent data lines transmitting data signals of a first phase and a second set of two adjacent data lines transmitting data signals of a second phase inverted to the first phase, a plurality of pixels, each disposed in a pixel region defined by the crossing of the gate and data lines, and a plurality of thin film transistors, each connected to one of the plurality of pixels.
    Type: Application
    Filed: September 16, 2002
    Publication date: May 15, 2003
    Applicant: LG.Philips LCD Co., Ltd.
    Inventor: Pyung Hun Kim