Patents by Inventor Jin Kyoung Song

Jin Kyoung Song 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: 7382344
    Abstract: A data driving apparatus for a liquid crystal display includes a plurality of digital-to-analog converter integrated circuits, a plurality of output buffer integrated circuits, at least two of the plurality of output buffer integrated circuits being commonly connected to each of the plurality of digital-to-analog converter integrated circuits, and a timing controller for controlling the plurality of digital-to-analog converter integrated circuits and the plurality of output buffer integrated circuits, wherein each of the plurality of digital-to-analog converter integrated circuits is mounted on a tape carrier package connected to a liquid crystal display panel, and each of the plurality of output buffer integrated circuits is mounted on the liquid crystal display panel.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: June 3, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Seok Woo Lee, Jin Kyoung Song
  • Patent number: 7180497
    Abstract: A data driving apparatus and method for a liquid crystal display wherein a digital to analog converter part is driven on a time-division basis to increase the number of output channels of a data driving IC without excessively increasing a chip area or by reducing a chip area in comparison to the existing chip area, thereby reducing the number of data driving IC's and TCP's. In the apparatus, a multiplexor part performs a time-division of input pixel data to output the time-divided pixel data. A digital to analog converter part converts the pixel data from the multiplexor part into pixel voltage signals. A demultiplexor part selectively supplies the pixel voltage signals from the digital to analog converter part to a plurality of output lines of the demultiplexor part. A sampler and holder part samples and holds the pixel voltage signals from the demultiplexor part to output the sampled and held pixel voltage signals to a plurality of data lines of the liquid crystal display.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: February 20, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Seok Woo Lee, Jin Kyoung Song
  • Patent number: 7158130
    Abstract: An adaptive method and apparatus prevents the formation of residual images in a liquid crystal display caused by a discharge of liquid crystal cells upon power-off. When an off-time of a ramp voltage is sensed, a white data signal may be generated. The white data signal is then displayed on a liquid crystal display panel until a power supply for the liquid crystal module is turned off.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: January 2, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Seok Woo Lee, Jin Kyoung Song
  • Patent number: 7133014
    Abstract: The present invention discloses a data transmission apparatus and method to lower a data transmission voltage for eliminating EMI. In the data driving apparatus, a timing controller aligns input pixel data, lowers input data voltages of the input pixel data, and outputs to a plurality of data transmission lines. A data driver raises the lowered input data voltages for driving the liquid crystal display panel and then converts into analog pixel voltage signals to supply the analog pixel voltage signals to the data lines.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: November 7, 2006
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Seok Woo Lee, Jin Kyoung Song
  • Publication number: 20030189564
    Abstract: An adaptive method and apparatus prevents the formation of residual images in a liquid crystal display caused by a discharge of liquid crystal cells upon power-off. When an off-time of a ramp voltage is sensed, a white data signal may be generated. The white data signal is then displayed on a liquid crystal display panel until a power supply for the liquid crystal module is turned off.
    Type: Application
    Filed: November 8, 2002
    Publication date: October 9, 2003
    Inventors: Seok Woo Lee, Jin Kyoung Song
  • Publication number: 20030132926
    Abstract: The present invention discloses a data transmission apparatus and method to lower a data transmission voltage for eliminating EMI. In the data driving apparatus, a timing controller aligns input pixel data, lowers input data voltages of the input pixel data, and outputs to a plurality of data transmission lines. A data driver raises the lowered input data voltages for driving the liquid crystal display panel and then converts into analog pixel voltage signals to supply the analog pixel voltage signals to the data lines.
    Type: Application
    Filed: May 7, 2002
    Publication date: July 17, 2003
    Applicant: LG. Philips LCD Co., Ltd.
    Inventors: Seok Woo Lee, Jin Kyoung Song
  • Publication number: 20030132907
    Abstract: A data driving apparatus and method for a liquid crystal display wherein a digital to analog converter part is driven on a time-division basis to increase the number of output channels of a data driving IC without excessively increasing a chip area or by reducing a chip area in comparison to the existing chip area, thereby reducing the number of data driving IC's and TCP's. In the apparatus, a multiplexor part performs a time-division of input pixel data to output the time-divided pixel data. A digital to analog converter part converts the pixel data from the multiplexor part into pixel voltage signals. A demultiplexor part selectively supplies the pixel voltage signals from the digital to analog converter part to a plurality of output lines of the demultiplexor part. A sampler and holder part samples and holds the pixel voltage signals from the demultiplexor part to output the sampled and held pixel voltage signals to a plurality of data lines of the liquid crystal display.
    Type: Application
    Filed: May 7, 2002
    Publication date: July 17, 2003
    Applicant: LG. Philips LCD Co., Ltd.
    Inventors: Seok Woo Lee, Jin Kyoung Song
  • Publication number: 20030085865
    Abstract: A data driving apparatus for a liquid crystal display includes a plurality of digital-to-analog converter integrated circuits, a plurality of output buffer integrated circuits, at least two of the plurality of output buffer integrated circuits being commonly connected to each of the plurality of digital-to-analog converter integrated circuits, and a timing controller for controlling the plurality of digital-to-analog converter integrated circuits and the plurality of output buffer integrated circuits, wherein each of the plurality of digital-to-analog converter integrated circuits is mounted on a tape carrier package connected to a liquid crystal display panel, and each of the plurality of output buffer integrated circuits is mounted on the liquid crystal display panel.
    Type: Application
    Filed: May 8, 2002
    Publication date: May 8, 2003
    Applicant: LG.Philips LCD Co., Ltd.
    Inventors: Seok Woo Lee, Jin Kyoung Song