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).

  • Patent number: 9165953
    Abstract: A flat panel display device with oxide thin film transistors and a fabricating method thereof are disclosed. The flat panel display device includes: a substrate; gate lines and data lines formed to cross each other and define a plurality of pixel regions on the substrate; the thin film transistors each including an oxide channel layer which is formed at an intersection of the gate and data lines; a pixel electrode and a common electrode formed in the pixel region with having a passivation layer therebetween; and step coverage compensation patterns formed at a step portion formed by the gate line and a gate electrode of the thin film transistor.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: October 20, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Ji Eun Chae, Tae Keun Lee
  • Publication number: 20150079732
    Abstract: A flat panel display device with oxide thin film transistors and a fabricating method thereof are disclosed. The flat panel display device includes: a substrate; gate lines and data lines formed to cross each other and define a plurality of pixel regions on the substrate; the thin film transistors each including an oxide channel layer which is formed at an intersection of the gate and data lines; a pixel electrode and a common electrode formed in the pixel region with having a passivation layer therebetween; and step coverage compensation patterns formed at a step portion formed by the gate line and a gate electrode of the thin film transistor.
    Type: Application
    Filed: November 25, 2014
    Publication date: March 19, 2015
    Inventors: Ji Eun Chae, Tae Keun Lee
  • Patent number: 8928572
    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: Grant
    Filed: May 21, 2010
    Date of Patent: January 6, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Su Hwan Moon, Do Heon Kim, Ji Eun Chae
  • Patent number: 8921861
    Abstract: A flat panel display device with oxide thin film transistors and a fabricating method thereof are disclosed. The flat panel display device includes: a substrate; gate lines and data lines formed to cross each other and define a plurality of pixel regions on the substrate; the thin film transistors each including an oxide channel layer which is formed at an intersection of the gate and data lines; a pixel electrode and a common electrode formed in the pixel region with having a passivation layer therebetween; and step coverage compensation patterns formed at a step portion formed by the gate line and a gate electrode of the thin film transistor.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: December 30, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Ji Eun Chae, Tae Keun Lee
  • Patent number: 8866224
    Abstract: Disclosed are a TFT array substrate for decreasing a bezel width and a display device including the same. The display device includes a first substrate including a display area (including a pixel formed in a pixel area defined by a gate line and a data line which intersect) and a non-display area that includes a built-in shift register connected to the gate line and a gate link part connected to the built-in shift register, a second substrate facing the first substrate, and a seal pattern formed in the non-display area of the first substrate in correspondence with an edge portion of the second substrate to facing-couple the first and second substrates. The seal pattern includes a first hardening area hardened by a first hardening process, and a second hardening area hardened by a second hardening process.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: October 21, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Byong Wook Shin, Ji Eun Chae, Tae Keun Lee
  • Patent number: 8853686
    Abstract: A flat panel display device with an oxide thin film transistor and a fabricating method thereof are disclosed. The fabricating method of the flat panel display device includes: preparing a substrate defined into a pixel region and a pad contact region; forming a gate electrode and a link line; forming a pixel electrode within the pixel region; forming an oxide layer on the substrate provided with the pixel electrode; forming a passivation layer on the substrate and performing a formation process of contact holes to expose the link line; and forming a second transparent conductive material film on the substrate.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: October 7, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Ji Eun Chae, Jung Eun Ahn, Tae Keun Lee
  • Publication number: 20130270582
    Abstract: Disclosed are a TFT array substrate for decreasing a bezel width and a display device including the same. The display device includes a first substrate including a display area (including a pixel formed in a pixel area defined by a gate line and a data line which intersect) and a non-display area that includes a built-in shift register connected to the gate line and a gate link part connected to the built-in shift register, a second substrate facing the first substrate, and a seal pattern formed in the non-display area of the first substrate in correspondence with an edge portion of the second substrate to facing-couple the first and second substrates. The seal pattern includes a first hardening area hardened by a first hardening process, and a second hardening area hardened by a second hardening process.
    Type: Application
    Filed: April 5, 2013
    Publication date: October 17, 2013
    Applicant: LG Display Co., Ltd.
    Inventors: Byong Wook Shin, Ji Eun Chae, Tae Keun Lee
  • Publication number: 20130056726
    Abstract: A flat panel display device with an oxide thin film transistor and a fabricating method thereof are disclosed. The fabricating method of the flat panel display device includes: preparing a substrate defined into a pixel region and a pad contact region; forming a gate electrode and a link line; forming a pixel electrode within the pixel region; forming an oxide layer on the substrate provided with the pixel electrode; forming a passivation layer on the substrate and performing a formation process of contact holes to expose the link line; and forming a second transparent conductive material film on the substrate.
    Type: Application
    Filed: August 16, 2012
    Publication date: March 7, 2013
    Inventors: Ji Eun Chae, Jung Eun Ahn, Tae Keun Lee
  • Publication number: 20130056724
    Abstract: A flat panel display device with oxide thin film transistors and a fabricating method thereof are disclosed. The flat panel display device includes: a substrate; gate lines and data lines formed to cross each other and define a plurality of pixel regions on the substrate; the thin film transistors each including an oxide channel layer which is formed at an intersection of the gate and data lines; a pixel electrode and a common electrode formed in the pixel region with having a passivation layer therebetween; and step coverage compensation patterns formed at a step portion formed by the gate line and a gate electrode of the thin film transistor.
    Type: Application
    Filed: July 19, 2012
    Publication date: March 7, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ji Eun Chae, Tae Keun Lee
  • Patent number: 8368634
    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: Grant
    Filed: December 15, 2009
    Date of Patent: February 5, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Su Hwan Moon, Ji Eun Chae
  • Patent number: 8199099
    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 4, 2009
    Date of Patent: June 12, 2012
    Assignee: LG Display Co., Ltd
    Inventors: Sun Young Kwon, Do Heon Kim, Su Hwan Moon, Ji Eun Chae
  • Patent number: 7898515
    Abstract: A liquid crystal display device includes a plurality of pixel electrodes to which a data voltage is supplied, a plurality of common electrodes arranged to form electric fields with the pixel electrodes, a plurality of common wire lines commonly connected to the common electrodes in each horizontal line, a plurality of common voltage drive circuits to supply a common voltage to each of the corresponding common wire lines, and a controller for generating clock signals to control the common voltage drive circuits to invert an electric potential of the common voltage to be output from each of the common voltage drive circuits for each frame period.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: March 1, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Su Hwan Moon, Do Heon Kim, Ji Eun Chae
  • Publication number: 20100231575
    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: May 21, 2010
    Publication date: September 16, 2010
    Inventors: Su Hwan MOON, Do Heon KIM, Ji Eun CHAE
  • Patent number: 7750883
    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: Grant
    Filed: December 28, 2006
    Date of Patent: July 6, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Su Hwan Moon, Do Heon Kim, Ji Eun Chae
  • 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
  • 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