Patents by Inventor Byung-Yong Ahn

Byung-Yong Ahn 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: 8519399
    Abstract: An array substrate for a display device and its fabrication method are disclosed. The array substrate for a display device includes: a gate wiring and a gate electrode connected to the wiring formed on a substrate; a gate insulating layer formed on the gate electrode; an active layer and a barrier metal layer stacked with the gate insulating layer interposed therebetween on the gate electrode; a data wiring formed on the barrier metal layer and source and electrodes connected to the data wiring; a passivation film formed on the source and drain electrodes and the data wiring and having a contact hole exposing a portion of the drain electrode, the barrier metal layer and the active layer; and a pixel electrode formed on the passivation film and being in contact with the drain electrode and the barrier metal layer including the active layer.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: August 27, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Kyo-Ho Moon, Byung-Yong Ahn, Hee-Kyoung Choi, Chul-Tae Kim, Sung-Wook Hong, Seung-Woo Jeong, Yong-Soo Cho
  • Patent number: 8400604
    Abstract: Provided is an array substrate for an IPS-mode LCD device and method of fabricating the same that prevents a problem referred to as wavy noise. The IPS-mode LCD device and method have a shorter processing time and low error rate without an increase in fabrication and production costs.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: March 19, 2013
    Inventors: Ki-Sul Cho, Young-Seok Choi, Byung-Yong Ahn, Tae-Ung Hwang, Dong-Jun Min, Bo-Kyoung Jung
  • Publication number: 20120267631
    Abstract: An array substrate for a display device and its fabrication method are disclosed. The array substrate for a display device includes: a gate wiring and a gate electrode connected to the wiring formed on a substrate; a gate insulating layer formed on the gate electrode; an active layer and a barrier metal layer stacked with the gate insulating layer interposed therebetween on the gate electrode; a data wiring formed on the barrier metal layer and source and electrodes connected to the data wiring; a passivation film formed on the source and drain electrodes and the data wiring and having a contact hole exposing a portion of the drain electrode, the barrier metal layer and the active layer; and a pixel electrode formed on the passivation film and being in contact with the drain electrode and the barrier metal layer including the active layer.
    Type: Application
    Filed: July 6, 2012
    Publication date: October 25, 2012
    Inventors: Kyo-Ho MOON, Byung-Yong Ahn, Hee-Kyoung Choi, Chul-Tae Kim, Sung-Wook Hong, Seung-Woo Jeong, Yong-Soo Cho
  • Patent number: 8237163
    Abstract: An array substrate for a display device and its fabrication method are disclosed. The array substrate for a display device includes: a gate wiring and a gate electrode connected to the wiring formed on a substrate; a gate insulating layer formed on the gate electrode; an active layer and a barrier metal layer stacked with the gate insulating layer interposed therebetween on the gate electrode; a data wiring formed on the barrier metal layer and source and electrodes connected to the data wiring; a passivation film formed on the source and drain electrodes and the data wiring and having a contact hole exposing a portion of the drain electrode, the barrier metal layer and the active layer; and a pixel electrode formed on the passivation film and being in contact with the drain electrode and the barrier metal layer including the active layer.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: August 7, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Kyo-Ho Moon, Byung-Yong Ahn, Hee-Kyoung Choi, Chul-Tae Kim, Sung-Wook Hong, Seung-Woo Jeong, Yong-Soo Cho
  • Patent number: 8178883
    Abstract: A method of manufacturing an array substrate for a liquid crystal display device includes forming a gate line, a gate pad, a gate electrode, and a data pad on a substrate through a first mask process, forming a gate insulating layer on a substantial part of an entire surface of the substrate including the gate line, the gate pad, the gate electrode, and the data pad, forming a data line, a source-drain pattern and an active layer on the gate insulating layer and forming a gate pad contact hole and a data pad contact hole in the gate insulating layer through a second mask process, and forming a pixel electrode, a gate pad terminal, a data pad terminal, a source electrode, a drain electrode, and an ohmic contact layer through a third mask process.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: May 15, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Ki-Sul Cho, Young-Seok Choi, Byung-Yong Ahn, Tae-Ung Hwang, Dong-Jun Min, Bo-Kyoung Jung
  • Patent number: 7960199
    Abstract: A thin film transistor array substrate and a fabricating method thereof are disclosed. The thin film transistor array substrate protects a thin film transistor without a protective film and accordingly reduces the manufacturing cost. In the thin film transistor array substrate, a gate electrode is connected to a gate line. A source electrode is connected to a data line crossing the gate line to define a pixel area. A drain electrode is opposed to the source electrode with a channel therebetween. A semiconductor layer is in the channel. A pixel electrode in the pixel area contacts the drain electrode over substantially the entire overlapping area between the two. A channel protective film is provided on the semiconductor layer corresponding to the channel to protect the semiconductor layer.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: June 14, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Young Seok Choi, Byung Yong Ahn, Ki Su Cho, Hong Woo Yu
  • Patent number: 7856840
    Abstract: The present invention relates to a dehumidifier having high dehumidifying efficiency, low noise and vibration. The dehumidifier includes a case, inlets passed through the case for introduction of air from an outside of the case to an inside of the case, an outlet formed to pass through a top of the case for discharging air dehumidified in the case to the outside of the case, a desiccant assembly for absorbing moisture from air drawn into the case, a blower assembly for drawing air through the inlets and blowing the air to the outlet, a regenerator assembly for blowing hot air to the desiccant assembly for drying the desiccant assembly, a heat exchanger for condensing high temperature, humid air blown by the regenerator assembly through the desiccant assembly, to separate the moisture from the air, and a water collecting assembly for collecting water condensed and separated from the air at the heat exchanger.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: December 28, 2010
    Assignee: LG Electronics Inc.
    Inventors: Sang Youn Yoon, Byung Yong Ahn
  • Publication number: 20100315584
    Abstract: Provided is an array substrate for an IPS-mode LCD device and method of fabricating the same that prevents a problem referred to as wavy noise. The IPS-mode LCD device and method have a shorter processing time and low error rate without an increase in fabrication and production costs.
    Type: Application
    Filed: August 4, 2010
    Publication date: December 16, 2010
    Inventors: Ki-Sul Cho, Young-Seok Choi, Byung-Yong Ahn, Tae-Ung Hwang, Dong-Jun Min, Bo-Kyoung Jung
  • Patent number: 7796225
    Abstract: Provided is an array substrate for an IPS-mode LCD device and method of fabricating the same that prevents a problem referred to as wavy noise. The IPS-mode LCD device and method have a shorter processing time and low error rate without an increase in fabrication and production costs.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: September 14, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Ki-Sul Cho, Young-Seok Choi, Byung-Yong Ahn, Tae-Ung Hwang, Dong-Jun Min, Bo-Kyoung Jung
  • Publication number: 20100155733
    Abstract: An array substrate for a display device and its fabrication method are disclosed. The array substrate for a display device includes: a gate wiring and a gate electrode connected to the wiring formed on a substrate; a gate insulating layer formed on the gate electrode; an active layer and a barrier metal layer stacked with the gate insulating layer interposed therebetween on the gate electrode; a data wiring formed on the barrier metal layer and source and electrodes connected to the data wiring; a passivation film formed on the source and drain electrodes and the data wiring and having a contact hole exposing a portion of the drain electrode, the barrier metal layer and the active layer; and a pixel electrode formed on the passivation film and being in contact with the drain electrode and the barrier metal layer including the active layer.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 24, 2010
    Applicant: LG Display Co., Ltd.
    Inventors: Kyo-Ho Moon, Byung-Yong Ahn, Hee-Kyoung Choi, Chul-Tae Kim, Sung-Wook Hong, Seung-Woo Jeong, Yong-Soo Cho
  • Patent number: 7649581
    Abstract: Disclosed is an array substrate of an LCD, and a method for fabricating it, which simplifies the fabrication process, thereby reducing fabrication costs. The process is simplified because the array substrate does not have a passivation film. The thin film transistors on the array substrate each have an active layer that is protected from contamination by forming a channel insulation layer on the active layer through a dry-etching process. Further, the gate line, gate pad, and gate electrode may have a two-layer structure having a low-resistance metal layer and a barrier metal layer, or a three-layer structure having a low-resistance metal layer and two barrier metal layers.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: January 19, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Young Seok Choi, Byung Yong Ahn, Hong Woo Yu, Ki Sul Cho
  • Publication number: 20100001278
    Abstract: A thin film transistor array substrate and a fabricating method thereof are disclosed. The thin film transistor array substrate protects a thin film transistor without a protective film and accordingly reduces the manufacturing cost. In the thin film transistor array substrate, a gate electrode is connected to a gate line. A source electrode is connected to a data line crossing the gate line to define a pixel area. A drain electrode is opposed to the source electrode with a channel therebetween. A semiconductor layer is in the channel. A pixel electrode in the pixel area contacts the drain electrode over substantially the entire overlapping area between the two. A channel protective film is provided on the semiconductor layer corresponding to the channel to protect the semiconductor layer.
    Type: Application
    Filed: August 14, 2009
    Publication date: January 7, 2010
    Applicant: LG Display Co., Ltd.
    Inventors: Young Seok Choi, Byung Yong Ahn, Ki Sul Cho, Hong Woo Yu
  • Patent number: 7589030
    Abstract: A method of fabricating a liquid crystal display device includes performing a first mask process to form a gate line, a gate pad, and a gate electrode on a substrate. The method of fabricating a liquid crystal display device further includes performing a second mask process to form an active layer on the gate electrode, performing a third mask process to form a pixel electrode contacting the active layer, and performing a fourth mask process to form a source electrode and a drain electrode on the active layer.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: September 15, 2009
    Assignee: LG. Display Co., Ltd.
    Inventors: Ki Sul Cho, Young Seok Choi, Byung Yong Ahn, Tae Ung Hwang, Dong Jun Min, Bo Kyoung Jung
  • Patent number: 7586123
    Abstract: A thin film transistor array substrate and a fabricating method thereof are disclosed. The thin film transistor array substrate protects a thin film transistor without a protective film and accordingly reduces the manufacturing cost. In the thin film transistor array substrate, a gate electrode is connected to a gate line. A source electrode is connected to a data line crossing the gate line to define a pixel area. A drain electrode is opposed to the source electrode with a channel therebetween. A semiconductor layer is in the channel. A pixel electrode in the pixel area contacts the drain electrode over substantially the entire overlapping area between the two. A channel protective film is provided on-the semiconductor layer corresponding to the channel to protect the semiconductor layer.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: September 8, 2009
    Assignee: LG. Display Co., Ltd.
    Inventors: Young Seok Choi, Byung Yong Ahn, Ki Sul Cho, Hong Woo Yu
  • Publication number: 20090159895
    Abstract: A method of manufacturing an array substrate for a liquid crystal display device includes forming a gate line, a gate pad, a gate electrode, and a data pad on a substrate through a first mask process, forming a gate insulating layer on a substantial part of an entire surface of the substrate including the gate line, the gate pad, the gate electrode, and the data pad, forming a data line, a source-drain pattern and an active layer on the gate insulating layer and forming a gate pad contact hole and a data pad contact hole in the gate insulating layer through a second mask process, and forming a pixel electrode, a gate pad terminal, a data pad terminal, a source electrode, a drain electrode, and an ohmic contact layer through a third mask process.
    Type: Application
    Filed: December 8, 2008
    Publication date: June 25, 2009
    Inventors: Ki-Sul Cho, Young-Seok Choi, Byung-Yong Ahn, Tae-Ung Hwang, Dong-Jun Min, Bo-Kyoung Jung
  • Patent number: 7479419
    Abstract: A method of manufacturing an array substrate for a liquid crystal display device includes forming a gate line, a gate pad, a gate electrode, and a data pad on a substrate through a first mask process, forming a gate insulating layer on a substantial part of an entire surface of the substrate including the gate line, the gate pad, the gate electrode, and the data pad, forming a data line, a source-drain pattern and an active layer on the gate insulating layer and forming a gate pad contact hole and a data pad contact hole in the gate insulating layer through a second mask process, and forming a pixel electrode, a gate pad terminal, a data pad terminal, a source electrode, a drain electrode, and an ohmic contact layer through a third mask process.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: January 20, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Ki-Sul Cho, Young-Seok Choi, Byung-Yong Ahn, Tae-Ung Hwang, Dong-Jun Min, Bo-Kyoung Jung
  • Patent number: 7422656
    Abstract: A dry etching step during the manufacturing of a substrate for a liquid crystal display (LCD) device is improved by placing the substrate at a predetermined distance away from the lower electrode to prevent damage of the substrate due to electrostatic formed therebetween. An insulating tape attached on the lower electrode provides electrostatic protection between the substrate and the lower electrode, so that the substrate is properly lifted off the lower electrode via the lifting pins of the lower electrode without electrostatic interference.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: September 9, 2008
    Assignee: LG Display Co., Ltd.
    Inventor: Byung-Yong Ahn
  • Publication number: 20070153198
    Abstract: Provided is an array substrate for an IPS-mode LCD device and method of fabricating the same that prevents a problem referred to as wavy noise. The IPS-mode LCD device and method have a shorter processing time and low error rate without an increase in fabrication and production costs.
    Type: Application
    Filed: December 15, 2006
    Publication date: July 5, 2007
    Inventors: Ki-sul Cho, Young-Seok Choi, Byung-Yong Ahn, Tae-Ung Hwang, Dong-Jun Min, Bo-Kyoung Jung
  • Publication number: 20060262244
    Abstract: A method of manufacturing an array substrate for a liquid crystal display device includes forming a gate line, a gate pad, a gate electrode, and a data pad on a substrate through a first mask process, forming a gate insulating layer on a substantial part of an entire surface of the substrate including the gate line, the gate pad, the gate electrode, and the data pad, forming a data line, a source-drain pattern and an active layer on the gate insulating layer and forming a gate pad contact hole and a data pad contact hole in the gate insulating layer through a second mask process, and forming a pixel electrode, a gate pad terminal, a data pad terminal, a source electrode, a drain electrode, and an ohmic contact layer through a third mask process.
    Type: Application
    Filed: December 16, 2005
    Publication date: November 23, 2006
    Inventors: Ki-Sul Cho, Young-Seok Choi, Byung-Yong Ahn, Tae-Ung Hwang, Dong-Jun Min, Bo-Kyoung Jung
  • Patent number: 7133100
    Abstract: A fabricating method of a thin film transistor substrate according to the present invention includes the steps of forming on a substrate material a thin film transistor array including a plurality of signal lines; forming an organic insulating film on the substrate material on which the thin film transistor array has formed; patterning the organic insulating film; performing a surface treatment on a surface of the organic insulating film using helium plasma; and forming a transparent electrode layer on the organic insulating film.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: November 7, 2006
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Byung Yong Ahn