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).
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Patent number: 9165953Abstract: 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: GrantFiled: November 25, 2014Date of Patent: October 20, 2015Assignee: LG Display Co., Ltd.Inventors: Ji Eun Chae, Tae Keun Lee
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Publication number: 20150079732Abstract: 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: ApplicationFiled: November 25, 2014Publication date: March 19, 2015Inventors: Ji Eun Chae, Tae Keun Lee
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Patent number: 8928572Abstract: 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: GrantFiled: May 21, 2010Date of Patent: January 6, 2015Assignee: LG Display Co., Ltd.Inventors: Su Hwan Moon, Do Heon Kim, Ji Eun Chae
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Patent number: 8921861Abstract: 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: GrantFiled: July 19, 2012Date of Patent: December 30, 2014Assignee: LG Display Co., Ltd.Inventors: Ji Eun Chae, Tae Keun Lee
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Patent number: 8866224Abstract: 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: GrantFiled: April 5, 2013Date of Patent: October 21, 2014Assignee: LG Display Co., Ltd.Inventors: Byong Wook Shin, Ji Eun Chae, Tae Keun Lee
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Patent number: 8853686Abstract: 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: GrantFiled: August 16, 2012Date of Patent: October 7, 2014Assignee: LG Display Co., Ltd.Inventors: Ji Eun Chae, Jung Eun Ahn, Tae Keun Lee
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Publication number: 20130270582Abstract: 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: ApplicationFiled: April 5, 2013Publication date: October 17, 2013Applicant: LG Display Co., Ltd.Inventors: Byong Wook Shin, Ji Eun Chae, Tae Keun Lee
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Publication number: 20130056726Abstract: 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: ApplicationFiled: August 16, 2012Publication date: March 7, 2013Inventors: Ji Eun Chae, Jung Eun Ahn, Tae Keun Lee
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Publication number: 20130056724Abstract: 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: ApplicationFiled: July 19, 2012Publication date: March 7, 2013Applicant: LG DISPLAY CO., LTD.Inventors: Ji Eun Chae, Tae Keun Lee
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Patent number: 8368634Abstract: 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: GrantFiled: December 15, 2009Date of Patent: February 5, 2013Assignee: LG Display Co., Ltd.Inventors: Su Hwan Moon, Ji Eun Chae
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Patent number: 8199099Abstract: 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: GrantFiled: August 4, 2009Date of Patent: June 12, 2012Assignee: LG Display Co., LtdInventors: Sun Young Kwon, Do Heon Kim, Su Hwan Moon, Ji Eun Chae
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Patent number: 7898515Abstract: 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: GrantFiled: December 13, 2005Date of Patent: March 1, 2011Assignee: LG Display Co., Ltd.Inventors: Su Hwan Moon, Do Heon Kim, Ji Eun Chae
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Publication number: 20100231575Abstract: 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: ApplicationFiled: May 21, 2010Publication date: September 16, 2010Inventors: Su Hwan MOON, Do Heon KIM, Ji Eun CHAE
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Patent number: 7750883Abstract: 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: GrantFiled: December 28, 2006Date of Patent: July 6, 2010Assignee: LG Display Co., Ltd.Inventors: Su Hwan Moon, Do Heon Kim, Ji Eun Chae
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Publication number: 20100156858Abstract: 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: ApplicationFiled: December 15, 2009Publication date: June 24, 2010Inventors: Su Hwan Moon, Ji Eun Chae
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Patent number: 7706052Abstract: 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: GrantFiled: November 16, 2007Date of Patent: April 27, 2010Assignee: LG Display Co., Ltd.Inventors: Won Seok Kang, Sung Jin Park, Ji Eun Chae
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Publication number: 20090295784Abstract: 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: ApplicationFiled: August 4, 2009Publication date: December 3, 2009Applicant: LG Display Co., Ltd.Inventors: Sun Young Kwon, Do Heon Kim, Su Hwan Moon, Ji Eun Chae
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Patent number: 7586476Abstract: 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: GrantFiled: August 19, 2005Date of Patent: September 8, 2009Assignee: LG. Display Co., Ltd.Inventors: Sun Young Kwon, Do Heon Kim, Su Hwan Moon, Ji Eun Chae
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Publication number: 20080239459Abstract: 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: ApplicationFiled: November 16, 2007Publication date: October 2, 2008Applicant: LG.PHILIPS LCD CO., LTD.Inventors: Won Seok Kang, Sung Jin Park, Ji Eun Chae
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Patent number: 7397885Abstract: A shift register minimizing bias stress applied to transistors is disclosed.Type: GrantFiled: June 26, 2006Date of Patent: July 8, 2008Assignee: LG Display Co., Ltd.Inventors: Su Hwan Moon, Do Heon Kim, Ji Eun Chae