Patents by Inventor Kyo Yong Koo

Kyo Yong Koo 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).

  • Color filter substrate having ball spacers disposed within black matrixes for liquid crystal display device and method for fabricating the same
    Patent number: 8648984
    Abstract: A color filter substrate for a liquid crystal display device and a method of fabricating the same includes black matrixes on a transparent insulating substrate, the black matrixes defining pixel areas and having a first region and a second region, color filters in the pixel areas and having areas overlapping the first region of the black matrixes, and ball spacers above the second region of the black matrixes, wherein a thickness of the first region is greater than a thickness of the second region.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: February 11, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Bong Chul Kim, Jun Beom Cho, Seung Hyung Lee, Kyo Yong Koo, Hyeon Jin Seo, Dhang Kwon, Robert Taff
  • Liquid crystal display device and fabrication method thereof
    Patent number: 7982831
    Abstract: A liquid crystal display (LCD) device and its fabrication method are disclosed. Specifically, a fabrication method in which polyhedral spacers are implemented on a substrate through an ink jet method are used for an LCD device. The spacers have the polyhedral shape to increase their contact area with two substrates, and include a surface processed layer for strengthening a bonding force in its bonding with an alignment film formed on the two substrates. The spacers have a polyhedral shape for maintaining the cell gap between the substrates.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: July 19, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Jeong-Hyun Kim, Myoung Ho Lee, Min Joo Kim, Se Jong Shin, Bong Chul Kim, Seung Hyun Lee, Kyo Yong Koo, Hyeon Jin Seo
  • Apparatus and method for coating polyimide layer
    Patent number: 7980196
    Abstract: An apparatus for coating a polyimide layer includes a printing table in which a substrate is provided, an inkjet head having an injection surface with nozzles for injecting a polyimide liquid onto the substrate, a polyimide liquid supply tank filled with the polyimide liquid, an ultrasonic cleaner in which a cleaning liquid for cleaning the inkjet head is stored for cleaning the inkjet head with vibrations in the cleaning liquid generated by applying an ultrasonic signal, and a wiper for wiping an injection surface of the inkjet head.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: July 19, 2011
    Assignees: LG Display Co., Ltd., ULVAC, Inc.
    Inventors: Bong Chul Kim, Jun Beom Cho, Seung Hyung Lee, Kyo Yong Koo, Hyeon Jin Seo, Dhang Kwon, Robert Taff
  • LIQUID CRYSTAL DISPLAY DEVICE AND FABRICATION METHOD THEREOF
    Publication number: 20100068965
    Abstract: A liquid crystal display (LCD) device and its fabrication method are disclosed. Specifically, a fabrication method in which polyhedral spacers are implemented on a substrate through an ink jet method are used for an LCD device. The spacers have the polyhedral shape to increase their contact area with two substrates, and include a surface processed layer for strengthening a bonding force in its bonding with an alignment film formed on the two substrates. The spacers have a polyhedral shape for maintaining the cell gap between the substrates.
    Type: Application
    Filed: November 20, 2009
    Publication date: March 18, 2010
    Applicant: LG Display Co., Ltd.
    Inventors: Jeong-Hyun Kim, Myoung Ho Lee, Min Joo Kim, Se Jong Shin, Bong Chul Kim, Seung Hyun Lee, Kyo Yong Koo, Hyeon Jin Seo
  • Liquid crystal display device and fabrication method thereof
    Patent number: 7643111
    Abstract: A liquid crystal display (LCD) device and its fabrication method are disclosed. Specifically, a fabrication method in which polyhedral spacers are implemented on a substrate through an ink jet method are used for an LCD device. The spacers have the polyhedral shape to increase their contact area with two substrates, and include a surface processed layer for strengthening a bonding force in its bonding with an alignment film formed on the two substrates. The spacers have a polyhedral shape for maintaining the cell gap between the substrates.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: January 5, 2010
    Assignee: LG. Display Co., Ltd.
    Inventors: Jeong Hyun Kim, Myoung Ho Lee, Min Joo Kim, Se Jong Shin, Bong Chul Kim, Seung Hyun Lee, Kyo Yong Koo, Hyeon Jin Seo
  • LCD panel and fabricating method with ball spacer within dummy source/drain electrode pattern and dummy semiconductor pattern over gate line for maintaining cell gap
    Patent number: 7570338
    Abstract: A liquid crystal display panel includes an upper substrate, a lower substrate facing the upper substrate, a gate line and a data line on an upper surface of the lower substrate facing the upper substrate, the gate line and the data line cross each other to define a cell area, a pixel electrode formed in the cell area, a dummy source/drain electrode pattern over the gate line, and a ball spacer within the dummy source/drain electrode pattern, the ball spacer maintaining a cell gap between the upper substrate and the lower substrate.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: August 4, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Sung Hoe Yoon, Se Jong Shin, Bong Chul Kim, Seung Hyun Lee, Kyo Yong Koo, Hyeon Jin Seo, Dhang Kwon
  • Color filter substrate for liquid crystal display device and method for fabricating the same
    Patent number: 7557893
    Abstract: A color filter substrate includes a black matrix on a transparent insulating substrate, the blacking matrix defining a pixel area, color filters in the pixel area, an overcoating layer over the black matrix and the color filters, the overcoating layer having a plurality of grooves, a plurality of column spacers on the overcoating layer, and a plurality of ball spacers in the grooves of the overcoating layer.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: July 7, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Bong Chul Kim, Seung Hyung Lee, Kyo Yong Koo, Hyeon Jin Seo, Dhang Kwon, Robert Taff
  • Color filter substrate for liquid crystal display device and method for fabricating the same
    Publication number: 20080003380
    Abstract: A color filter substrate includes a black matrix on a transparent insulating substrate, the blacking matrix defining a pixel area, color filters in the pixel area, an overcoating layer over the black matrix and the color filters, the overcoating layer having a plurality of grooves, a plurality of column spacers on the overcoating layer, and a plurality of ball spacers in the grooves of the overcoating layer.
    Type: Application
    Filed: December 29, 2006
    Publication date: January 3, 2008
    Applicants: LG.PHILIPS LCD CO., LTD., ULVAC, INC.
    Inventors: Bong Chul Kim, Seung Hyung Lee, Kyo Yong Koo, Hyeon Jin Seo, Dhang Kwon, Robert Taff
  • Color filter substrate for liquid crystal display device and method for fabricating the same
    Publication number: 20070291385
    Abstract: A color filter substrate for a liquid crystal display device and a method of fabricating the same includes black matrixes on a transparent insulating substrate, the black matrixes defining pixel areas and having a first region and a second region, color filters in the pixel areas and having areas overlapping the first region of the black matrixes, and ball spacers above the second region of the black matrixes, wherein a thickness of the first region is greater than a thickness of the second region.
    Type: Application
    Filed: December 29, 2006
    Publication date: December 20, 2007
    Applicants: LG.PHILIPS LCD CO., LTD., ULVAC, INC.
    Inventors: Bong Chul Kim, Jun Beom Cho, Seung Hyung Lee, Kyo Yong Koo, Hyeon Jin Seo, Dhang Kwon, Robert Taff
  • Apparatus and method for coating polyimide layer
    Publication number: 20070292627
    Abstract: An apparatus for coating a polyimide layer includes a printing table in which a substrate is provided, an inkjet head having an injection surface with nozzles for injecting a polyimide liquid onto the substrate, a polyimide liquid supply tank filled with the polyimide liquid, an ultrasonic cleaner in which a cleaning liquid for cleaning the inkjet head is stored for cleaning the inkjet head with vibrations in the cleaning liquid generated by applying an ultrasonic signal, and a wiper for wiping an injection surface of the inkjet head.
    Type: Application
    Filed: December 29, 2006
    Publication date: December 20, 2007
    Applicants: LG. PHILIPS LCD CO., LTD., ULVAC, Inc.
    Inventors: Bong Chul Kim, Jun Beom Cho, Seung Hyung Lee, Kyo Yong Koo, Hyeon Jin Seo, Dhang Kwon, Robert Taff