Patents by Inventor Soo-Hwan Moon

Soo-Hwan Moon 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: 7986381
    Abstract: An array substrate for a liquid crystal display device includes a substrate, a gate line elongated in one direction, a data line crossing over the gate line, a thin film transistor near a crossing point of the gate and data lines and connected to the gate and data lines, an independent portion under the data line at the crossing point, the portion being separated from the gate line, and a pixel electrode connected to the thin film transistor. The independent portion may be inside the gate line. The parasitic capacitor between the gate line and the data line can be reduced and the amount of light from the backlight device can be reduced.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: July 26, 2011
    Assignee: LG Display Co, Ltd.
    Inventors: Dae-Lim Park, Seong-Soo Hwang, Young-Sik Kim, Soo-Hwan Moon
  • Patent number: 7864154
    Abstract: A gate driving circuit for a liquid crystal display device includes a plurality of shift register stages each including pull-up and pull-down transistors, wherein each of the pull-up and pull-down transistors is connected to a gate driving signal output terminal and controlled by voltages on first and second nodes, respectively, and wherein the pull-down transistors of a (2n?1)th shift register stage and a (2n)th shift register stage are connected to each other; and a control signal generating unit alternately supplying one of first and second control signals to the pull-down transistors of the (2n?1)th and (2n)th shift register stages and supplying the other of the first and second control signals to the pull-down transistors of the (2n+1)th and (2n+2)th shift register stages, wherein n is an positive integer.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: January 4, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Do-Heon Kim, Soo-Hwan Moon, Ji-Eun Chae
  • Patent number: 7528820
    Abstract: A driving circuit for a flat panel display device includes shift register stages, each containing: a first TFT charging a Q node according to a start signal; a second TFT discharging the Q node according to an output voltage of a next shift register stage; a pull-up unit increasing an output voltage according to the Q node voltage; an odd pull-down unit decreasing the output voltage in an odd frame according to a QB-o node voltage; and an even pull-down unit decreasing the output voltage in an even frame according to a QB-e node voltage. A gate and drain of a third odd TFT connected to the QB-o node are connected to each other and receive an odd source voltage. A gate and drain of the third even TFT connected to the QB-e node are connected to each other and receive an even source voltage.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: May 5, 2009
    Assignee: LG. Display Co., Ltd.
    Inventors: Soo-Young Yoon, Yong-Ho Jang, Binn Kim, Soo-Hwan Moon
  • Publication number: 20080211982
    Abstract: An array substrate for a liquid crystal display device includes a substrate, a gate line elongated in one direction, a data line crossing over the gate line, a thin film transistor near a crossing point of the gate and data lines and connected to the gate and data lines, an independent portion under the data line at the crossing point, the portion being separated from the gate line, and a pixel electrode connected to the thin film transistor. The independent portion may be inside the gate line. The parasitic capacitor between the gate line and the data line can be reduced. And amount of light from the backlight device can be reduced.
    Type: Application
    Filed: February 4, 2008
    Publication date: September 4, 2008
    Inventors: Dae-Lim Park, Seong-Soo Hwang, Young-Sik Kim, Soo-Hwan Moon
  • Patent number: 7349038
    Abstract: An array substrate for a liquid crystal display device includes a substrate, a gate line elongated in one direction, a data line crossing over the gate line, a thin film transistor near a crossing point of the gate and data lines and connected to the gate and data lines, an independent portion under the data line at the crossing point, the portion being separated from the gate line, and a pixel electrode connected to the thin film transistor. The independent portion may be inside the gate line. The parasitic capacitor between the gate line and the data line can be reduced. And amount of light from the backlight device can be reduced.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: March 25, 2008
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Dae-Lim Park, Seong-Soo Hwang, Young-Sik Kim, Soo-Hwan Moon
  • Publication number: 20070290982
    Abstract: A gate driving circuit for a liquid crystal display device includes a plurality of shift register stages each including pull-up and pull-down transistors, wherein each of the pull-up and pull-down transistors is connected to a gate driving signal output terminal and controlled by voltages on first and second nodes, respectively, and wherein the pull-down transistors of a (2n?1)th shift register stage and a (2n)th shift register stage are connected to each other; and a control signal generating unit alternately supplying one of first and second control signals to the pull-down transistors of the (2n?1)th and (2n)th shift register stages and supplying the other of the first and second control signals to the pull-down transistors of the (2n+1)th and (2n+2)th shift register stages, wherein n is an positive integer.
    Type: Application
    Filed: December 28, 2006
    Publication date: December 20, 2007
    Inventors: Do-Heon Kim, Soo-Hwan Moon, Ji-Eun Chae
  • Publication number: 20060139292
    Abstract: A driving circuit for a flat panel display device includes shift register stages, each containing: a first TFT charging a Q node according to a start signal; a second TFT discharging the Q node according to an output voltage of a next shift register stage; a pull-up unit increasing an output voltage according to the Q node voltage; an odd pull-down unit decreasing the output voltage in an odd frame according to a QB-o node voltage; and an even pull-down unit decreasing the output voltage in an even frame according to a QB-e node voltage. A gate and drain of a third odd TFT connected to the QB-o node are connected to each other and receive an odd source voltage. A gate and drain of the third even TFT connected to the QB-e node are connected to each other and receive an even source voltage.
    Type: Application
    Filed: June 29, 2005
    Publication date: June 29, 2006
    Inventors: Soo-Young Yoon, Yong-Ho Jang, Binn Kim, Soo-Hwan Moon
  • Publication number: 20040125264
    Abstract: An array substrate for a liquid crystal display device includes a substrate, a gate line elongated in one direction, a data line crossing over the gate line, a thin film transistor near a crossing point of the gate and data lines and connected to the gate and data lines, an independent portion under the data line at the crossing point, the portion being separated from the gate line, and a pixel electrode connected to the thin film transistor. The independent portion may be inside the gate line.
    Type: Application
    Filed: December 17, 2003
    Publication date: July 1, 2004
    Inventors: Dae-Lim Park, Seong-Soo Hwang, Young-Sik Kim, Soo-Hwan Moon