Patents by Inventor Ji Eun Chae

Ji Eun Chae 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).

  • Publication number: 20100156858
    Abstract: Disclosed herein is a gate driver which is capable of partially driving a screen. The gate driver includes a first shift register for sequentially outputting n scan pulses (where n is a natural number larger than 2), and a second shift register for selecting p ones (where p is a natural number smaller than or equal to n) of the n scan pulses from the first shift register in response to an external output control signal and supplying the selected p scan pulses respectively to p gate lines of a liquid crystal panel.
    Type: Application
    Filed: December 15, 2009
    Publication date: June 24, 2010
    Inventors: Su Hwan Moon, Ji Eun Chae
  • Publication number: 20100158186
    Abstract: A shift register is disclosed.
    Type: Application
    Filed: June 8, 2009
    Publication date: June 24, 2010
    Applicant: LG DISPLAY CO., LTD
    Inventors: Su-Hwan MOON, Ji-Eun CHAE
  • Publication number: 20100158187
    Abstract: A shift register which is capable of simultaneously driving gate lines is disclosed. The shift register includes a plurality of stages for simultaneously supplying all-drive signals to gate lines for an all-drive period and sequentially supplying scan pulses to the gate lines for a scan period.
    Type: Application
    Filed: December 14, 2009
    Publication date: June 24, 2010
    Inventors: Su-Hwan Moon, Ji-Eun Chae
  • Patent number: 7706052
    Abstract: Disclosed in an electrophoretic display device having a charged ink layer. In this disclosed device, the ink layer is disposed on the active region (an image display region) and the peripheral region located around the active region, and an electric field is applied to a portion of the electrophoretic ink film corresponding to the peripheral region. Therefore, the peripheral region does not look stained.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: April 27, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Won Seok Kang, Sung Jin Park, Ji Eun Chae
  • Publication number: 20090295784
    Abstract: An apparatus and method for driving a liquid crystal display device are disclosed. The apparatus includes a liquid crystal panel with pixels defined by data and gate lines. A gate driver provides different gate pulses to the odd-column pixels than to the even-column pixels. The gate pulses have different voltages and/or widths. Data drivers provide data voltages having a positive or negative polarity to the data lines. A timing controller controls the gate and data drivers and supplies gate clock pulses that have different voltages and/or widths to the gate driver.
    Type: Application
    Filed: August 4, 2009
    Publication date: December 3, 2009
    Applicant: LG Display Co., Ltd.
    Inventors: Sun Young Kwon, Do Heon Kim, Su Hwan Moon, Ji Eun Chae
  • Patent number: 7586476
    Abstract: An apparatus and method for driving a liquid crystal display device are disclosed. The apparatus includes a liquid crystal panel with pixels defined by data and gate lines. A gate driver provides different gate pulses to the odd-column pixels than to the even-column pixels. The gate pulses have different voltages and/or widths. Data drivers provide data voltages having a positive or negative polarity to the data lines. A timing controller controls the gate and data drivers and supplies gate clock pulses that have different voltages and/or widths to the gate driver.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: September 8, 2009
    Assignee: LG. Display Co., Ltd.
    Inventors: Sun Young Kwon, Do Heon Kim, Su Hwan Moon, Ji Eun Chae
  • Publication number: 20080239459
    Abstract: Disclosed in an electrophoretic display device having a charged ink layer. In this disclosed device, the ink layer is disposed on the active region (an image display region) and the peripheral region located around the active region, and an electric field is applied to a portion of the electrophoretic ink film corresponding to the peripheral region. Therefore, the peripheral region does not look stained.
    Type: Application
    Filed: November 16, 2007
    Publication date: October 2, 2008
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Won Seok Kang, Sung Jin Park, Ji Eun Chae
  • Patent number: 7397885
    Abstract: A shift register minimizing bias stress applied to transistors is disclosed.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: July 8, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Su Hwan Moon, Do Heon Kim, Ji Eun Chae
  • Publication number: 20070296676
    Abstract: A liquid crystal display device including a liquid crystal panel, a gate driver configured to supply gate signals to gate lines on the liquid crystal panel, a data driver configured to supply data voltages to data lines on the liquid crystal panel, and a partial controller configured to control the gate driver to intercept a part of the gate signals to be supplied to the gate lines.
    Type: Application
    Filed: December 28, 2006
    Publication date: December 27, 2007
    Inventors: Su Hwan Moon, Do Heon Kim, Ji Eun Chae
  • 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