Patents by Inventor Woong-Kwon Kim

Woong-Kwon 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).

  • Patent number: 7796204
    Abstract: An array substrate device includes a gate line formed on a substrate extending along a first direction having a gate electrode, a data line formed on the substrate extending along a second direction having a data pad disposed apart from a first end of the data line, the data and gate lines defining a pixel region, a gate pad formed on the substrate disposed apart from a first end of the gate line, a thin film transistor formed at a crossing region of the gate and data lines and including the gate electrode, a semiconductor layer, a source electrode, and a drain electrode, a black matrix overlapping the thin film transistor, the gate line, and the data line except for a first portion of the drain electrode, a first pixel electrode at the pixel region contacting the first portion of the drain electrode and the substrate, a color filter on the first pixel electrode at the pixel region, and a second pixel electrode on the color filter contacting the first pixel electrode.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: September 14, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Youn-Gyoung Chang, Seung-Ryull Park, Woong-Kwon Kim, Jong-Hwae Lee
  • Publication number: 20100159652
    Abstract: In manufacturing a thin film transistor array substrate, a passivation film is formed over the transistors. A first photoresist pattern is formed over the passivation film, with a first portion partially overlying at least one source/drain electrode of each transistor and overlying each pixel electrode region, and with a second portion thicker than the first portion. The passivation film is patterned using the first photoresist pattern as a mask. The first photoresist pattern's first portion is removed to form a second photoresist pattern which protrudes upward around the pixel electrode regions. A transparent conductive film is formed with recesses in the pixel electrode regions. A masking pattern is formed over the transparent film in each pixel electrode region, the masking pattern's top surface being below a top of the transparent film. The transparent film is patterned using the masking pattern as a mask to form the pixel electrodes.
    Type: Application
    Filed: May 6, 2009
    Publication date: June 24, 2010
    Inventors: Woong-Kwon Kim, Ho-Jun Lee, Hong-Kee Chin, Sang-Heon Song, Jung-Suk Bank, Jun-Ho Song, Byeong-Jae Ahn, Bae-Heuk Yim
  • Publication number: 20100151606
    Abstract: An array substrate device having a color filter-on thin film transistor (COT) structure for a liquid crystal display device includes a gate line formed on a substrate along a transverse direction, the gate line including a gate pad at one end thereof, a first insulating layer formed on the substrate to cover the gate line, the first insulating layer exposing a first portion of the gate pad, a data line formed over the first insulating layer along a longitudinal direction on the substrate, the data line defining a pixel region with the gate line and including a data pad at one end thereof, a thin film transistor formed at a crossing region of the gate and data lines, the thin film transistor including a gate electrode, a semiconductor layer, a source electrode, and a drain electrode, a black matrix overlapping the thin film transistor, the gate line, and the data line except a second portion of the drain electrode, a second insulating layer formed over an entire surface of the substrate to cover the black matr
    Type: Application
    Filed: December 3, 2009
    Publication date: June 17, 2010
    Inventors: Woong-Kwon Kim, Youn-Gyoung Chang, Seung-Ryull Park
  • Publication number: 20100148182
    Abstract: A thin film transistor (TFT) substrate is provided in which a sufficiently large contact area between conductive materials is provided in a contact portion and a method of fabricating the TFT substrate. The TFT substrate includes a gate interconnection line formed on an insulating substrate, a gate insulating layer covering the gate interconnection line, a semiconductor layer arranged on the gate insulating layer, a data interconnection line including a data line, a source electrode and a drain electrode formed on the semiconductor layer, a first passivation layer formed on the data interconnection line and exposing the drain electrode, a second passivation layer formed on the first passivation film and a pixel electrode electrically connected to the drain electrode. An outer sidewall of the second passivation layer is positioned inside an outer sidewall of the first passivation layer.
    Type: Application
    Filed: April 24, 2009
    Publication date: June 17, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hong-Kee CHIN, Sang-Gab KIM, Woong-Kwon KIM, Yong-Mo CHOI, Seung-Ha CHOI, Shin-Il CHOI, Ho-Jun LEE, Jung-Suk BANG, Yu-Gwang JEONG
  • Publication number: 20100109008
    Abstract: A thin-film transistor (“TFT”) substrate includes an insulating substrate, a gate line and a data line which are insulated from each other, disposed on the insulating substrate and are arranged in a lattice, and a pixel electrode which is electrically connected to the gate line and the data line by a switching device. The data line includes a lower layer which is formed of a transparent electrode, and an upper layer which is disposed directly on the lower layer.
    Type: Application
    Filed: October 8, 2009
    Publication date: May 6, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woong-Kwon KIM, In-Woo KIM, Ki-Hun JEONG
  • Patent number: 7667784
    Abstract: A liquid crystal display device includes first and second substrates facing each other with a predetermined space therebetween, a liquid crystal material layer disposed between the first and second substrates, a seal pattern formed between the first and second substrates to surround the liquid crystal material layer, and a blocking layer formed over a first surface of the second substrate to cover the seal pattern.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: February 23, 2010
    Inventors: Woong-Kwon Kim, Seung-Ryul Park
  • Publication number: 20100038644
    Abstract: A thin film transistor display panel includes an insulating substrate, gate lines and data lines disposed intersecting each other on the insulating substrate so as to be electrically insulated from each other, common lines provided on the insulating substrate in parallel to the gate lines, a gate insulating film disposed on the gate lines and the common lines, contact holes disposed passing through the gate insulating film disposed on the common lines, a plurality of common electrodes electrically connected to the common lines through the contact holes and arranged in parallel to each other, and a plurality of pixel electrodes arranged in parallel to the common electrodes. The thickness of the common electrode and the pixel electrode is smaller than that of the data line.
    Type: Application
    Filed: July 16, 2009
    Publication date: February 18, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-Ho SONG, Woong-Kwon KIM
  • Publication number: 20100022156
    Abstract: A liquid crystal panel for a color filter on thin film transistor (COT) type liquid crystal display (LCD) device includes: first and second substrates facing each other and having a display area and a non-display area, the non-display area is at a periphery of the display area; a gate line and a data line on the first substrate, the gate line and the data line crossing each other to define a pixel region in the display area; a thin film transistor connected to the gate line and the data line; a color filter layer over the thin film transistor; a black matrix on the color filter layer; a pixel electrode contacting the thin film transistor on the color filer layer; a common electrode on the second substrate; a first alignment key on the second substrate in the non-display area; a sealant between the first and second substrates at a boundary between the display area and the non-display area; and a liquid crystal layer between the pixel electrode and the common electrode.
    Type: Application
    Filed: September 30, 2009
    Publication date: January 28, 2010
    Inventors: Woong-Kwon Kim, Dong-guk Kim
  • Publication number: 20100006844
    Abstract: A thin-film transistor (“TFT”) array and a method of fabricating the TFT array panel include: an insulating substrate; a gate line and a data line which are insulated from each other on the insulating substrate and are arranged in a lattice; common wiring extended parallel to the gate line on the insulating substrate; a gate insulating film disposed on the gate line and the common wiring; a semiconductor layer disposed on the gate insulating film; contact holes which penetrate through the gate insulating film and the semiconductor layer disposed on the common wiring; a plurality of common electrodes connected to the common wiring by the contact holes and arranged parallel to each other; and a plurality of pixel electrodes arranged parallel to the plurality of common electrodes.
    Type: Application
    Filed: May 12, 2009
    Publication date: January 14, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woong-Kwon KIM, Jun-Ho SONG, Joo-Han KIM, In-Woo KIM, Ho-Jun LEE
  • Patent number: 7646445
    Abstract: An array substrate device having a color filter-on-thin film transistor (COT) structure for a liquid crystal display device includes a gate line formed on a substrate along a transverse direction, the gate line including a gate pad at one end thereof, a first insulating layer formed on the substrate to cover the gate line, the first insulating layer exposing a first portion of the gate pad, a data line formed over the first insulating layer along a longitudinal direction on the substrate, the data line defining a pixel region with the gate line and including a data pad at one end thereof, a thin film transistor formed at a crossing region of the gate and data lines, the thin film transistor including a gate electrode, a semiconductor layer, a source electrode, and a drain electrode, a black matrix overlapping the thin film transistor, the gate line, and the data line except a second portion of the drain electrode, a second insulating layer formed over an entire surface of the substrate to cover the black matr
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: January 12, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Woong-Kwon Kim, Youn-Gyoung Chang, Seung-Ryull Park
  • Publication number: 20090309101
    Abstract: A thin film transistor array substrate and its manufacturing method are disclosed. A thin film transistor (TFT) includes a gate electrode formed on a substrate, and source and drain electrodes formed on the gate electrode and separated from each other. A common line made of the same material as the gate electrode is formed on the substrate. A storage capacitor includes a storage electrode connected with a storage electrode line and a pixel electrode formed on the storage electrode. The storage electrode and the pixel electrode are formed by patterning a transparent conductive film, and accordingly, light can be transmitted through the region where the storage capacitor is formed to thus increase an aperture ratio.
    Type: Application
    Filed: May 5, 2009
    Publication date: December 17, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae-Cheol KIM, Woong-Kwon KIM, Sang-Youn HAN, In-Woo KIM, Ho-Jun LEE, Byeong-Jae AHN
  • Patent number: 7633595
    Abstract: A liquid crystal display includes a gate line disposed on a substrate; a data line disposed on the substrate, a pixel area being defined by an intersection of the gate line and the data line; a thin film transistor locating at the intersection of the gate line and the data line; a color filter disposed at each pixel area on the substrate; a spacer formed on a first base surface of the thin film transistor area; a rib formed on a second base surface of the pixel area; and a dummy pattern disposed at the thin film transistor area to form a stepped difference of the first base surface and the second base surface.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: December 15, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Woong-Kwon Kim, Seung-Ryul Park
  • Publication number: 20090303423
    Abstract: A liquid crystal display including: a first substrate; a gate line and a data line formed on the first substrate and crossing each other; a thin film transistor connected to the gate line and the data line; an insulating layer formed on the gate line and the data line, and including an opening; a pixel electrode connected to the thin film transistor; a first spacer formed in the opening; and a second spacer formed on the insulating layer, wherein a distance from a top surface of the insulating layer to a top surface of the first spacer is different from a distance from the top surface of the insulating layer to a top surface of the second spacer.
    Type: Application
    Filed: March 9, 2009
    Publication date: December 10, 2009
    Inventors: Woong-Kwon KIM, Jun-Ho SONG
  • Patent number: 7612860
    Abstract: A liquid crystal panel for a color filter on thin film transistor (COT) type liquid crystal display (LCD) device includes: first and second substrates facing each other and having a display area and a non-display area, the non-display area is at a periphery of the display area; a gate line and a data line on the first substrate, the gate line and the data line crossing each other to define a pixel region in the display area; a thin film transistor connected to the gate line and the data line; a color filter layer over the thin film transistor; a black matrix on the color filter layer; a pixel electrode contacting the thin film transistor on the color filer layer; a common electrode on the second substrate; a first alignment key on the second substrate in the non-display area; a sealant between the first and second substrates at a boundary between the display area and the non-display area; and a liquid crystal layer between the pixel electrode and the common electrode.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: November 3, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Woong-Kwon Kim, Dong-guk Kim
  • Patent number: 7567310
    Abstract: An array substrate device includes a gate line formed on a substrate extending along a first direction having a gate electrode, a data line formed on the substrate extending along a second direction having a data pad disposed apart from a first end of the data line, the data and gate lines defining a pixel region, a gate pad formed on the substrate disposed apart from a first end of the gate line, a thin film transistor formed at a crossing region of the gate and data lines and including the gate electrode, a semiconductor layer, a source electrode, and a drain electrode, a black matrix overlapping the thin film transistor, the gate line, and the data line except for a first portion of the drain electrode, a first pixel electrode at the pixel region contacting the first portion of the drain electrode and the substrate, a color filter on the first pixel electrode at the pixel region, and a second pixel electrode on the color filter contacting the first pixel electrode.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: July 28, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Youn-Gyoung Chang, Seung-Ryull Park, Woong-Kwon Kim, Jong-Hwae Lee
  • Patent number: 7517620
    Abstract: A method for fabricating an array substrate having a color filter on a thin film transistor structure for a liquid crystal display device is disclosed in the present invention.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: April 14, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Woong-Kwon Kim, Youn-Gyoung Chang
  • Patent number: 7518698
    Abstract: A thin film transistor array substrate including a gate pattern having a gate electrode, a gate line connected to the gate electrode, and a gate pad connected to the gate line, a source/drain pattern having a source electrode, a drain electrode, a data line connected to the source electrode, and a data pad connected to the data line, a gate insulating pattern formed along a matrix pattern including the gate pattern and the source/drain pattern except for a pixel area, a semiconductor pattern formed on the gate insulating pattern having a same pattern as the gate insulating pattern and partially removed at a thin film transistor area and the gate line area, and a transparent electrode pattern having a pixel electrode formed at the pixel area and connected to the drain electrode, a gate pad protective electrode formed on the gate pad, and a data pad protective electrode formed on the data pad.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: April 14, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Woong Kwon Kim, Heung Lyul Cho
  • Patent number: 7495728
    Abstract: A transflective liquid crystal display device includes a thin film transistor disposed at a corner of a pixel region, the thin film transistor including a gate electrode, a semiconductor layer, a source electrode, and a drain electrode, a reflector disposed in the pixel region and spaced apart from the thin film transistor, the reflector formed of the same material as one of the gate, source, and drain electrodes, a color filter disposed within the pixel region, the color filter having one of red, green, and blue colors, a black matrix over the thin film transistor along color filter borders of adjacent pixel regions, and a pixel electrode formed of a transparent conductive material adjacent to the color filter, the pixel electrode having a first end portion contacting the drain electrode of the thin film transistor, wherein the pixel region is divided into a reflective portion including the reflector and a transmissive portion absent of the reflector.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: February 24, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Woong-Kwon Kim, Se-June Kim
  • Patent number: 7477345
    Abstract: A method for manufacturing a liquid crystal display includes forming a plurality of gate lines and data lines on a substrate, the plurality of gate and data lines cross each other and defining a plurality of unit pixel regions displaying red, green, and blue colors, forming a plurality of thin film transistors in each unit pixel regions, forming a passivation layer on the substrate, forming a green color filter layer on the substrate within a unit pixel region displaying the green color, forming one of a red color filter layer and a blue color filter layer within a unit adjacent to the unit pixel region displaying the green color, and within a portion of the green color filter layer overlapping the thin film transistor, depositing an organic insulating layer on the substrate and forming a contact hole, and forming a plurality of pixel electrodes corresponding to each unit pixel region.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: January 13, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Woong-Kwon Kim, Kwang-Sik Oh, Myung-Woo Nam, Ki-Du Cho, Se-Jong Shin, Bong-Chul Kim, Kwon-Seob Choi
  • Publication number: 20080287029
    Abstract: An array substrate device includes a gate line formed on a substrate extending along a first direction having a gate electrode, a data line formed on the substrate extending along a second direction having a data pad disposed apart from a first end of the data line, the data and gate lines defining a pixel region, a gate pad formed on the substrate disposed apart from a first end of the gate line, a thin film transistor formed at a crossing region of the gate and data lines and including the gate electrode, a semiconductor layer, a source electrode, and a drain electrode, a black matrix overlapping the thin film transistor, the gate line, and the data line except for a first portion of the drain electrode, a first pixel electrode at the pixel region contacting the first portion of the drain electrode and the substrate, a color filter on the first pixel electrode at the pixel region, and a second pixel electrode on the color filter contacting the first pixel electrode.
    Type: Application
    Filed: June 11, 2008
    Publication date: November 20, 2008
    Inventors: Youn-Gyoung Chang, Seung-Ryull Park, Woong-Kwon Kim, Jong-Hwae Lee