Patents by Inventor Kuk-Hui Chang

Kuk-Hui Chang 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: 9240136
    Abstract: A data driving circuit for a display panel. The data driving circuit includes a driving integrated circuit including a plurality of data driving units configured to supply image data to data lines of the display panel; and a package body including: a mount region in which the driving integrated circuit is mounted, logic power input patterns configured to transmit logic power to the plurality of data driving units, and at least two external auxiliary transmission lines formed in the mount region and connected to at least one logic power input pattern. Further, the at least two external auxiliary transmission lines are configured to transmit power received from the at least one connected logic power input pattern to data driving units located farthest from said at least one logic power input pattern.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: January 19, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kuk-Hui Chang, Young-Nam Lee
  • Patent number: 8520376
    Abstract: A liquid crystal display device is disclosed, by which misalignment between a tape carrier package and a panel can be prevented in a manner of forming an align mark between output pads provided to a central part of the tape carrier package.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: August 27, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Kuk-Hui Chang, Young-Nam Lee
  • Patent number: 8508454
    Abstract: An LCD device adapted to cut costs through the simplification of circuitry is disclosed. The LCD device includes a timing controller that includes: an inter-integrated circuit driver and a memory which are configured to communicate with an external system using an inter-integrated circuit protocol; and a logic element configured to operate a first logic signal from a first write protection terminal of the external system with a second logic signal from a second write protection terminal of the inter-integrated circuit driver, and to apply the operated logic signal to the memory. The memory replies to the operated logic signal from an output terminal of the logic element and performs a write operation.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: August 13, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Kuk Hui Chang, Young Nam Lee, Hyoung Sik Kim
  • Patent number: 8477132
    Abstract: A device for driving an image display device that includes an image display panel, a plurality of drivers for driving the image display panel, a Low Voltage Differential Signaling (LVDS) transmission unit for converting external image data and a plurality of control signals including frame ratio setting signals into LVDS signals and transmitting the same, an LVDS reception unit for converting the image data and the plurality of control signals including frame ratio setting signals OP1, OP1 converted into the LVDS signals and transmitted thus into TTL signals and forwarding the same, and a timing controller for aligning the image data to fit to the display frame ratio according to the frame ratio setting signal and the plurality of control signals from the LVDS reception unit and supplying the same to the plurality of drivers, for displaying the image on the image display panel.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: July 2, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Byung-Hyun Seo, Hui Kim, Kuk-Hui Chang
  • Publication number: 20110292028
    Abstract: A device for driving an image display device that includes an image display panel, a plurality of drivers for driving the image display panel, a Low Voltage Differential Signaling (LVDS) transmission unit for converting external image data and a plurality of control signals including frame ratio setting signals into LVDS signals and transmitting the same, an LVDS reception unit for converting the image data and the plurality of control signals including frame ratio setting signals OP1, OP1 converted into the LVDS signals and transmitted thus into TTL signals and forwarding the same, and a timing controller for aligning the image data to fit to the display frame ratio according to the frame ratio setting signal and the plurality of control signals from the LVDS reception unit and supplying the same to the plurality of drivers, for displaying the image on the image display panel.
    Type: Application
    Filed: May 20, 2011
    Publication date: December 1, 2011
    Inventors: Byung-Huyn SEO, Hui Kim, Kuk-Hui Chang
  • Publication number: 20110128215
    Abstract: An LCD device adapted to cut costs through the simplification of circuitry is disclosed. The LCD device includes a timing controller that includes: an inter-integrated circuit driver and a memory which are configured to communicate with an external system using an inter-integrated circuit protocol; and a logic element configured to operate a first logic signal from a first write protection terminal of the external system with a second logic signal from a second write protection terminal of the inter-integrated circuit driver, and to apply the operated logic signal to the memory. The memory replies to the operated logic signal from an output terminal of the logic element and performs a write operation.
    Type: Application
    Filed: July 14, 2010
    Publication date: June 2, 2011
    Inventors: Kuk Hui CHANG, Young Nam Lee, Hyoung Sik Kim
  • Publication number: 20110074745
    Abstract: A data driving circuit for a display panel, the data driving circuit including a driving integrated circuit including a plurality of data driving units configured to supply image data through a plurality of data link lines to data lines of the display panel and including a driving control unit configured to generate a source output enable signal for determining output timings of the image data from the data driving units; and a package body including a mount region in which the driving integrated circuit is mounted. Further, the driving control unit is further configured to first supply the source output enable signal to a corresponding data driving unit connected to a corresponding data link line having a greatest length among the data link lines such that the corresponding data driving unit outputs the image data earlier than other data driving units.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 31, 2011
    Inventors: Kuk-Hui CHANG, Young-Nam Lee
  • Publication number: 20110074760
    Abstract: A data driving circuit for a display panel. The data driving circuit includes a driving integrated circuit including a plurality of data driving units configured to supply image data to data lines of the display panel; and a package body including: a mount region in which the driving integrated circuit is mounted, logic power input patterns configured to transmit logic power to the plurality of data driving units, and at least two external auxiliary transmission lines formed in the mount region and connected to at least one logic power input pattern. Further, the at least two external auxiliary transmission lines are configured to transmit power received from the at least one connected logic power input pattern to data driving units located farthest from said at least one logic power input pattern.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 31, 2011
    Inventors: Kuk-Hui CHANG, Young-Nam Lee
  • Publication number: 20110074746
    Abstract: A driving circuit for a display device comprises a plurality of data driving units supplying image data to a display portion of a panel through data link lines formed at a non-display portion of the panel; and a driving controller sequentially generating a plurality of source output enable signals determining output timing of the image data from the data driving units, and directly supplying each of the source output enable signals to each of the data driving units to sequentially drive the data driving units.
    Type: Application
    Filed: September 29, 2010
    Publication date: March 31, 2011
    Inventors: Kuk-Hui Chang, Young-Nam Lee
  • Publication number: 20110069432
    Abstract: A liquid crystal display device is disclosed, by which misalignment between a tape carrier package and a panel can be prevented in a manner of forming an align mark between output pads provided to a central part of the tape carrier package.
    Type: Application
    Filed: September 22, 2010
    Publication date: March 24, 2011
    Inventors: Kuk-Hui Chang, Young-Nam Lee