Patents by Inventor Bong-Chul Kim

Bong-Chul Kim 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: 20110181819
    Abstract: A liquid crystal display comprises a matrix pattern formed in a double layer comprising a lower pattern having a hydrophilic property on a substrate, and a black matrix having a hydrophobic property on the lower pattern; and color filters formed in the pixel area.
    Type: Application
    Filed: April 7, 2011
    Publication date: July 28, 2011
    Inventors: Dong Woo KANG, So Jong SHIN, Bong Chul KIM, Ki Soub YANG, Tae Hyung LEE, Hak Woon KIM, Hong Myeong JEON
  • 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
  • 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
  • Publication number: 20110171766
    Abstract: Disclosed is a liquid crystal display (LCD) device and a method for manufacturing the same, capable of maintaining a cell gap and preventing press defects caused by application of a predetermined external pressure via the use of ball spacers.
    Type: Application
    Filed: March 28, 2011
    Publication date: July 14, 2011
    Inventors: Bong Chul KIM, Hyeon Jin Seo, Dhang Kwon, Hang Sup Cho, Ho Su Kim
  • Patent number: 7940356
    Abstract: A liquid crystal display comprises a matrix pattern formed in a double layer comprising a lower pattern having a hydrophilic property on a substrate, and a black matrix having a hydrophobic property on the lower pattern; and color filters formed in the pixel area.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: May 10, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Dong Woo Kang, Se Jong Shin, Bong Chul Kim, Ki Soub Yang, Tae Hyung Lee, Hak Woon Kim, Hong Myeong Jeon
  • Patent number: 7936434
    Abstract: Disclosed is a liquid crystal display (LCD) device and a method for manufacturing the same, capable of maintaining a cell gap and preventing press defects caused by application of a predetermined external pressure via the use of ball spacers.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: May 3, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Bong Chul Kim, Hyeon Jin Seo, Dhang Kwon, Hang Sup Cho, Ho Su Kim
  • Patent number: 7868644
    Abstract: A liquid crystal display (LCD) inspection apparatus and method are provided. The inspection apparatus and method are capable of automatically and accurately detecting defects of an LCD panel, and providing information of the automatically-detected defects of the LCD panel to the operator, thereby enabling the operator to easily recognize the defects.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: January 11, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Dong Woo Kang, Soung Yeoul Eom, Bong Chul Kim, Ki Soub Yang
  • Publication number: 20100302812
    Abstract: The present invention relates to an adapter power supply, which includes a switching unit for switching a DC voltage; a transformer which has a primary winding connected to the switching unit, a secondary winding electromagnetically coupled to the primary winding, and an auxiliary winding electromagnetically coupled to the primary winding; a rectifier for rectifying a voltage outputted from the transformer; and a controller for controlling the switching unit to operate according to the PWM scheme in a normal operation mode, and to operate according to a quasi-resonant scheme in a standby mode, by detecting information of a load connected to the rectifier.
    Type: Application
    Filed: September 30, 2009
    Publication date: December 2, 2010
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Gun Woo MOON, Byoung Woo Ryu, Seong Wook Choi, Bong Chul Kim, Dong Seong Oh
  • Patent number: 7834650
    Abstract: An LCD test method and apparatus for reducing the number of channels of a probe unit is provided. An apparatus for testing a liquid crystal display including: a stage on which a liquid crystal panel is placed; a plurality of vertically divided blocks, wherein each of the vertically divided blocks include a plurality of adjacent data lines; a data probe unit that provides test pattern signals respectively to groups of at least two of the plurality of vertically divided blocks of the liquid crystal panel; a plurality of horizontally divided blocks, wherein each of the horizontally divided blocks include a plurality of adjacent gate lines; a gate probe unit that provides scanning signals respectively to the plurality of horizontally divided blocks of the liquid crystal panel; and a controller that provides test pattern signals to the data probe unit and provides scanning signals to the gate probe unit.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: November 16, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Dong Woo Kang, Soung Yeoul Eom, Bong Chul Kim, Ki Soub Yang
  • Patent number: 7830484
    Abstract: A TFT substrate for inspection for shorts, includes a substrate defined by a display area and a non-display area outside the display area; a plurality of first and second lines formed in the display area on the substrate; pad lines formed to be extended from one side of each of the first lines to the non-display area; a plurality of signal inspection bars formed in the non-display area to cross the pad lines at one side of the pad lines; a shorting inspection bar spaced apart from the outermost signal inspection bar at a predetermined interval and substantially parallel with the signal inspection bar and connected to the pad lines; and a plurality of transparent electrode patterns partially overlapped with the pad lines and connected to one of the signal inspection bars.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: November 9, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Soung Yeoul Eom, Dong Woo Kang, Bong Chul Kim, Ki Soub Yang
  • Patent number: 7812921
    Abstract: A color filter-on-thin film transistor substrate includes gate data lines crossing each other and defining pixel areas, thin film transistors is located at crossings of gate and data lines, pixel electrodes connected to the thin film transistors and formed within the pixel areas, and stripe-shaped color filters overlapping a plurality of pixel areas and oriented parallel to one of the gate and data lines.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: October 12, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Deok Won Lee, Kwang Sik Oh, Myung Woo Nam, Ki Du Cho, Se Jong Shin, Bong Chul Kim, Kwon Seob Choi
  • Patent number: 7800568
    Abstract: The liquid crystal display (LCD) inspection apparatus for inspecting an LCD panel includes a worktable which supports the LCD panel to be seated on a front side of the worktable, probe units which are electrically connected to the LCD panel, a backlight unit which supplies light to the LCD panel, an imaging unit which photographs an image of the LCD panel supported by the worktable, a first polarizing plate which is arranged between the imaging unit and the LCD panel to polarize the light, a second polarizing plate which is arranged between the LCD panel and the backlight unit to polarize the light, an illumination unit which emits illumination light to surfaces of the LCD panel, and an image processor which receives the image photographed by the imaging unit, and extracts defect information from the received image.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: September 21, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Dong Woo Kang, Soung Yeoul Eom, Bong Chul Kim, Ki Soub Yang
  • Patent number: 7753567
    Abstract: A backlight unit for a test device of an LCD panel is disclosed. The backlight unit includes: a chamber enclosing a predetermined space, the chamber being provided with a plurality of through holes formed around the chamber perimeter to allow air flow between the interior and exterior of the chamber; a backlight provided in the chamber to emit a light to an LCD panel positioned in the chamber; and a plurality of circulating fans provided in the chamber to circulate air inside the chamber.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: July 13, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Dong Woo Kang, Soung Yeoul Eom, Bong Chul Kim, Ki Soub Yang
  • Publication number: 20100119723
    Abstract: An apparatus for coating a polyimide layer includes a print table for receiving a substrate thereon, an inkjet head positioned over the print table and having a jetting surface with a plurality of nozzles for jetting polyimide liquid onto the substrate, and a polyimide liquid supply tank for supplying polyimide liquid, and a wiper movable from one side of the jetting surface to an other side of the jetting surface while the wiper contacts the jetting surface of the inkjet head.
    Type: Application
    Filed: January 21, 2010
    Publication date: May 13, 2010
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ki Du CHO, Bong Chul KIM, Hui Jae LEE, Sun Ja KIM, Hwang Un SEO, Hang Sup CHO, Eun Mi KIM
  • 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
  • Patent number: 7673580
    Abstract: An apparatus for coating a polyimide layer includes a print table for receiving a substrate thereon, an inkjet head positioned over the print table and having a jetting surface with a plurality of nozzles for jetting polyimide liquid onto the substrate, and a polyimide liquid supply tank for supplying polyimide liquid, and a wiper movable from one side of the jetting surface to an other side of the jetting surface while the wiper contacts the jetting surface of the inkjet head.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: March 9, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Ki Du Cho, Bong Chul Kim, Hui Jae Lee, Sun Ja Kim, Hwang Un Seo, Hang Sup Cho, Eun Mi Kim
  • 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
  • Publication number: 20090290785
    Abstract: A liquid crystal display (LCD) inspection apparatus and method are provided. The inspection apparatus and method are capable of automatically and accurately detecting defects of an LCD panel, and providing information of the automatically-detected defects of the LCD panel to the operator, thereby enabling the operator to easily recognize the defects.
    Type: Application
    Filed: August 5, 2009
    Publication date: November 26, 2009
    Inventors: Dong Woo Kang, Soung Yeoul Eom, Bong Chul Kim, Ki Soub Yang
  • Publication number: 20090263921
    Abstract: A color filter-on-thin film transistor substrate includes gate data lines crossing each other and defining pixel areas, thin film transistors is located at crossings of gate and data lines, pixel electrodes connected to the thin film transistors and formed within the pixel areas, and stripe-shaped color filters overlapping a plurality of pixel areas and oriented parallel to one of the gate and data lines.
    Type: Application
    Filed: June 17, 2009
    Publication date: October 22, 2009
    Inventors: Deok Won LEE, Kwang Sik OH, Myung Woo NAM, Ki Du CHO, Se Jong SHIN, Bong Chul KIM, Kwon Seob CHOI
  • Patent number: 7586323
    Abstract: A liquid crystal display (LCD) inspection apparatus and method are provided. The inspection apparatus and method are capable of automatically and accurately detecting defects of an LCD panel, and providing information of the automatically-detected defects of the LCD panel to the operator, thereby enabling the operator to easily recognize the defects.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: September 8, 2009
    Assignee: LG. Display Co., Ltd.
    Inventors: Dong Woo Kang, Soung Yeoul Eom, Bong Chul Kim, Ki Soub Yang