Patents by Inventor Il-Man Choi

Il-Man Choi 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: 9633615
    Abstract: An LCD device is disclosed. The liquid crystal display device includes a capacitor formed between the input terminal of an internal driving circuit and a LOG type signal line, which receive the start pulse signal. Therefore, the LCD device can stably drive its internal driving circuit, even though static electricity is generated on the LOG signal line which is used for transferring the start pulse signal of a short enabling time.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: April 25, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Il Man Choi, Myeong Hoon Kwon
  • Patent number: 8703554
    Abstract: An array substrate for an LCD device includes a gate line crossing a data line to define a pixel region. A thin film transistor (TFT) includes a gate electrode connected to the gate line, insulating and active layers on the gate electrode, a source electrode connected to the data line, and a drain electrode spaced apart from the source electrode. An auxiliary common electrode includes a horizontal portion disposed in the pixel region. A metal layer overlaps the insulating layer and contacts the horizontal portion of the auxiliary common electrode through a contact hole defined through the insulating layer. A passivation layer is disposed on the TFT and the metal layer. A pixel electrode has a horizontal portion overlapping the metal layer with the passivation layer therebetween to form a storage capacitor, the pixel electrode connected to the drain electrode through a second contact hole defined through the passivation layer.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: April 22, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Il-Man Choi, Ho-June Kim
  • Patent number: 8416359
    Abstract: Array substrates for liquid crystal display (LCD) devices are formed on a substrate with first and second gate lines crossing a data line to define first and second pixel regions. A thin film transistor includes a source electrode and a drain electrode. A metal pattern overlaps a common line and makes up a portion of the drain electrode. A passivation layer is disposed on the source and drain electrodes and on the metal pattern. A first pixel electrode is connected to the metal pattern and a common electrode is connected to the common line. Various repair patterns are formed to define one or more repairing portions that enable connection of the drain electrode or metal pattern to a second pixel electrode of the second pixel region if the cut line is cut in the event the first pixel electrode fails to display an image.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: April 9, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Il-Man Choi, Tae-Hyeung Kim, Min-Jic Lee
  • Patent number: 8357936
    Abstract: An array substrate for an LCD device includes a gate line crossing a data line to define a pixel region. A thin film transistor (TFT) includes a gate electrode connected to the gate line, insulating and active layers on the gate electrode, a source electrode connected to the data line, and a drain electrode spaced apart from the source electrode. An auxiliary common electrode includes a horizontal portion disposed in the pixel region. A metal layer overlaps the insulating layer and contacts the horizontal portion of the auxiliary common electrode through a contact hole defined through the insulating layer. A passivation layer is disposed on the TFT and the metal layer. A pixel electrode has a horizontal portion overlapping the metal layer with the passivation layer therebetween to form a storage capacitor, the pixel electrode connected to the drain electrode through a second contact hole defined through the passivation layer.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: January 22, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Il-Man Choi, Ho-June Kim
  • Patent number: 8154021
    Abstract: Array substrates for liquid crystal display (LCD) devices are formed on a substrate with first and second gate lines crossing a data line to define first and second pixel regions. A thin film transistor includes a source electrode and a drain electrode. A metal pattern overlaps a common line and makes up a portion of the drain electrode. A passivation layer is disposed on the source and drain electrodes and on the metal pattern. A first pixel electrode is connected to the metal pattern and a common electrode is connected to the common line. Various repair patterns are formed to define one or more repairing portions that enable connection of the drain electrode or metal pattern to a second pixel electrode of the second pixel region if the cut line is cut in the event the first pixel electrode fails to display an image.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: April 10, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Il-Man Choi, Tae-Hyeung Kim, Min-Jic Lee
  • Patent number: 7924357
    Abstract: Array substrates for liquid crystal display (LCD) devices are formed on a substrate with first and second gate lines crossing a data line to define first and second pixel regions. A thin film transistor includes a source electrode and a drain electrode. A metal pattern overlaps a common line and makes up a portion of the drain electrode. A passivation layer is disposed on the source and drain electrodes and on the metal pattern. A first pixel electrode is connected to the metal pattern and a common electrode is connected to the common line. Various repair patterns are formed to define one or more repairing portions that enable connection of the drain electrode or metal pattern to a second pixel electrode of the second pixel region if the cut line is cut in the event the first pixel electrode fails to display an image.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: April 12, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Il-Man Choi, Tae-Hyeung Kim, Min-Jic Lee
  • Publication number: 20100315400
    Abstract: An LCD device is disclosed. The liquid crystal display device includes a capacitor formed between the input terminal of an internal driving circuit and a LOG type signal line, which receive the start pulse signal. Therefore, the LCD device can stably drive its internal driving circuit, even though static electricity is generated on the LOG signal line which is used for transferring the start pulse signal of a short enabling time.
    Type: Application
    Filed: November 11, 2009
    Publication date: December 16, 2010
    Inventors: Il Man Choi, Myeong Hoon Kwon
  • Publication number: 20100289978
    Abstract: Array substrates for liquid crystal display (LCD) devices are formed on a substrate with first and second gate lines crossing a data line to define first and second pixel regions. A thin film transistor includes a source electrode and a drain electrode. A metal pattern overlaps a common line and makes up a portion of the drain electrode. A passivation layer is disposed on the source and drain electrodes and on the metal pattern. A first pixel electrode is connected to the metal pattern and a common electrode is connected to the common line. Various repair patterns are formed to define one or more repairing portions that enable connection of the drain electrode or metal pattern to a second pixel electrode of the second pixel region if the cut line is cut in the event the first pixel electrode fails to display an image.
    Type: Application
    Filed: July 28, 2010
    Publication date: November 18, 2010
    Inventors: Il-Man Choi, Tae-Hyeung Kim, Min-Jic Lee
  • Patent number: 7787068
    Abstract: Array substrates for liquid crystal display (LCD) devices are formed on a substrate with first and second gate lines crossing a data line to define first and second pixel regions. A thin film transistor includes a source electrode and a drain electrode. A metal pattern overlaps a common line and makes up a portion of the drain electrode. A passivation layer is disposed on the source and drain electrodes and on the metal pattern. A first pixel electrode is connected to the metal pattern and a common electrode is connected to the common line. Various repair patterns are formed to define one or more repairing portions that enable connection of the drain electrode or metal pattern to a second pixel electrode of the second pixel region if the cut line is cut in the event the first pixel electrode fails to display an image.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: August 31, 2010
    Assignee: LG. Display Co., Ltd.
    Inventors: Il-Man Choi, Tae-Hyeung Kim, Min-Jic Lee
  • Publication number: 20100118224
    Abstract: Array substrates for liquid crystal display (LCD) devices are formed on a substrate with first and second gate lines crossing a data line to define first and second pixel regions. A thin film transistor includes a source electrode and a drain electrode. A metal pattern overlaps a common line and makes up a portion of the drain electrode. A passivation layer is disposed on the source and drain electrodes and on the metal pattern. A first pixel electrode is connected to the metal pattern and a common electrode is connected to the common line. Various repair patterns are formed to define one or more repairing portions that enable connection of the drain electrode or metal pattern to a second pixel electrode of the second pixel region if the cut line is cut in the event the first pixel electrode fails to display an image.
    Type: Application
    Filed: January 21, 2010
    Publication date: May 13, 2010
    Inventors: Il-Man Choi, Tae-Hyeung Kim, Min-Jic Lee
  • Patent number: 7567333
    Abstract: A color filter substrate for a liquid crystal display device includes a substrate having a plurality of pixel regions, a black matrix array having a lattice configuration on the substrate, the black matrix array corresponding to boundary regions between adjacent ones of the pixel regions, a plurality of color filter layers, each corresponding to one of the pixel regions, and a column spacer array having a lattice configuration, the column spacer array corresponding to the black matrix array.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: July 28, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Chang-Hoon Lee, Il-Man Choi
  • Publication number: 20080158465
    Abstract: Array substrates for liquid crystal display (LCD) devices are formed on a substrate with first and second gate lines crossing a data line to define first and second pixel regions. A thin film transistor includes a source electrode and a drain electrode. A metal pattern overlaps a common line and makes up a portion of the drain electrode. A passivation layer is disposed on the source and drain electrodes and on the metal pattern. A first pixel electrode is connected to the metal pattern and a common electrode is connected to the common line. Various repair patterns are formed to define one or more repairing portions that enable connection of the drain electrode or metal pattern to a second pixel electrode of the second pixel region if the cut line is cut in the event the first pixel electrode fails to display an image.
    Type: Application
    Filed: June 29, 2007
    Publication date: July 3, 2008
    Inventors: Il-Man Choi, Tae-Hyeung Kim, Min-Jic Lee
  • Publication number: 20070115422
    Abstract: A color filter substrate for a liquid crystal display device includes a substrate having a plurality of pixel regions, a black matrix array having a lattice configuration on the substrate, the black matrix array corresponding to boundary regions between adjacent ones of the pixel regions, a plurality of color filter layers, each corresponding to one of the pixel regions, and a column spacer array having a lattice configuration, the column spacer array corresponding to the black matrix array.
    Type: Application
    Filed: January 12, 2007
    Publication date: May 24, 2007
    Inventors: Chang- Hoon Lee, Il-Man Choi
  • Patent number: 7184118
    Abstract: A color filter substrate for a liquid crystal display device includes a substrate having a plurality of pixel regions, a black matrix array having a lattice configuration on the substrate, the black matrix array corresponding to boundary regions between adjacent ones of the pixel regions, a plurality of color filter layers, each corresponding to one of the pixel regions, and a column spacer array having a lattice configuration, the column spacer array corresponding to the black matrix array.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: February 27, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Chang-Hoon Lee, Il-Man Choi
  • Publication number: 20040263766
    Abstract: A color filter substrate for a liquid crystal display device includes a substrate having a plurality of pixel regions, a black matrix array having a lattice configuration on the substrate, the black matrix array corresponding to boundary regions between adjacent ones of the pixel regions, a plurality of color filter layers, each corresponding to one of the pixel regions, and a column spacer array having a lattice configuration, the column spacer array corresponding to the black matrix array.
    Type: Application
    Filed: June 22, 2004
    Publication date: December 30, 2004
    Applicant: LG.Philips LCD Co., Ltd.
    Inventors: Chang-Hoon Lee, Il-Man Choi