Patents by Inventor Keun-Kyu Song

Keun-Kyu Song 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: 7977144
    Abstract: A method for a thin film transistor array panel includes forming a gate line and a pixel electrode on a substrate, forming a gate insulating layer covering the gate line, forming a data line including a source electrode and a drain electrode on the gate insulating layer, forming an interlayer insulating layer covering the data line and the drain electrode on the gate insulating layer, forming a first opening in the interlayer insulating layer, forming an organic semiconductor in the first opening, forming a passivation layer on the organic semiconductor and the interlayer insulating layer, and forming a second opening in the interlayer insulating layer to expose the pixel electrode.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: July 12, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-Hwan Cho, Bo-Sung Kim, Keun-Kyu Song, Tae-Young Choi, Jung-Hun Noh
  • Patent number: 7969448
    Abstract: A method of converting image signals for a display device including six-color subpixels is provided, which includes: classifying three-color input image signals into maximum, middle, and minimum; decomposing the classified signals into six-color components; determining a maximum among the six-color components; calculating a scaling factor; and extracting six-color output signals.
    Type: Grant
    Filed: November 20, 2004
    Date of Patent: June 28, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Chol Yang, Seong-Deok Lee, Chang-Yeong Kim, Mun-Pyo Hong, Nam-Seok Roh, Won-Hee Choe, Hyun-Wook Ok, Ho-Young Lee, Du-Sik Park, Keun-Kyu Song
  • Patent number: 7947986
    Abstract: Embodiments of the invention provide a thin film transistor substrate, comprising: an insulating substrate; a gate wire formed on the insulating substrate; a first gate insulating layer made of an inorganic material, formed on the gate wire and having a first insulating layer contact hole for exposing at least a part of the gate wire; a second gate insulating layer made of an organic material, formed on the first gate insulating film and having a second insulating layer contact hole corresponding to the first insulating layer contact hole; a source electrode and a drain electrode formed on the second gate insulating layer and being aparted from each other to be defining a channel area; and an organic semiconductor layer formed on the channel area. Accordingly, the present invention provides an organic TFT substrate in which a characteristic of a TFT is improved.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: May 24, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun-kyu Song, Young-min Kim, Tae-young Choi
  • Patent number: 7936410
    Abstract: In an array substrate, a display apparatus having the same and a method for repairing the same, a substrate includes a display area and a peripheral area that is adjacent to the display area. A plurality of signal transmitting lines are formed in the peripheral area of the substrate. A plurality of signal lines are formed in the display area of the substrate and connected to the signal transmitting lines. A repair part is formed in the peripheral area of the substrate. The repair part intersects and is insulated from the signal transmitting lines so as to repair a first opened signal transmitting line of the signal transmitting lines. Thus, the array substrate may be produced in high-yield and prevent signal distortion.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: May 3, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon-Hak Oh, Keun-Kyu Song, Young-Chol Yang
  • Patent number: 7919778
    Abstract: An organic thin film transistor (OTFT) array panel for a display device includes a gate line and a pixel electrode formed on a substrate, the gate line and pixel electrode each having a first conductive layer including a transparent conductive oxide and a second conductive layer including a metal, a data line crossing the gate line and including a source electrode, a drain electrode facing the source electrode and connected with the pixel electrode, and an organic semiconductor in contact with the source electrode and the drain electrode.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: April 5, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun-Kyu Song, Bo-Sung Kim, Seung-Hwan Cho
  • Publication number: 20110053315
    Abstract: An organic thin film transistor substrate includes a gate line formed on a substrate, a data line intersecting the gate line and defining a subpixel area, an organic thin film transistor including a gate electrode connected to the gate line, a source electrode connected to the data line, a drain electrode facing the source electrode, and an organic semiconductor layer forming a channel between the source and drain electrodes, a passivation layer parallel with the gate line, for covering the organic semiconductor layer and peripheral regions of the organic semiconductor layer, and a bank insulating layer for determining the position of the organic semiconductor layer and the passivation layer.
    Type: Application
    Filed: August 30, 2010
    Publication date: March 3, 2011
    Inventors: Seung Hwan CHO, Bo Sung Kim, Keun Kyu Song
  • Publication number: 20110025582
    Abstract: A display device is provided, which includes, a plurality of pixels arranged in a matrix, each pixel including a first set of three primary color subpixels (R, G, B) and at least one of a second set of three primary color subpixels, (C, M, Y) wherein the first and the second sets of three primary colors have a complementary relation.
    Type: Application
    Filed: September 27, 2010
    Publication date: February 3, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nam-Seok ROH, Young-Chol YANG, Keun-Kyu SONG
  • Patent number: 7879725
    Abstract: In a stripping composition for easily removing a photoresist without an adverse effect and a method of manufacturing a TFT substrate for an LCD device using the same, the stripping composition includes acetic acid and ozone gas contained in the acetic acid as a bubble form to remove the photoresist including novolak. A photoresist pattern including novolak is formed on a predetermined layer (24) formed on a substrate (10). The layer is etched using the photoresist pattern as a mask to form a pattern of the layer. The photoresist pattern is removed using the stripping composition. The stripping composition is cheap and more effectively protects the environment in comparison with the conventional stripping compositions. Additionally, an O2 ashing process performed before or after a stripping process may be omitted to thereby simplify a stripping process.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: February 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun-Kyu Song, Nam-Seok Roh, Mun-Pyo Hong
  • Patent number: 7863086
    Abstract: A thin film transistor substrate includes an insulating substrate, a gate electrode formed on the insulating substrate, a first gate insulating film formed on the gate electrode and having an opening for exposing at least part of the gate electrode, a second gate insulating film covering the gate electrode exposed by the opening and having a larger dielectric constant than the first gate insulating film, a source electrode and a drain electrode disposed apart from each other in a central area of the second gate insulating film and defining a channel region there between, and an organic semiconductor layer formed in the channel region. A method for forming the TFT substrate is also provided. Thus, the present invention provides a TFT substrate in which a characteristic of a TFT is improved.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: January 4, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bo-sung Kim, Soo-jin Kim, Young-min Kim, Keun-kyu Song, Yong-uk Lee, Mun-pyo Hong, Tae-young Choi, Joon-hak Oh
  • Patent number: 7858971
    Abstract: An organic TFT substrate includes a gate line on a substrate, a pixel electrode in a same plane of the gate line, a data line insulated from the gate line, an organic TFT including a gate electrode connected to the gate line, a source electrode connected to the data line and insulated from the gate line, a drain electrode connected to the pixel electrode and insulated from the gate electrode, and an organic semiconductor layer contacting each of the source and drain electrodes, and a gate-insulating layer on the gate line and the gate electrode.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: December 28, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun Kyu Song, Seung Hwan Cho, Bo Sung Kim, Young Min Kim, Jung Han Shin
  • Publication number: 20100311196
    Abstract: A thin film transistor array panel includes a substrate, a plurality of first and second signal lines crossing each other on the substrate, source electrodes connected to the first signal lines, drain electrodes connected to the second signal lines, pixel electrodes connected to the drain electrodes, a first partition formed on the source and drain electrodes and having a first opening, wherein a lower width of the first opening is wider than an upper width of the first opening, an organic semiconductor formed in the first opening and at least overlapping the portions of the source electrode and the drain electrode, and a gate electrode connected to the second signal line and at least overlapping the portion of the organic semiconductor.
    Type: Application
    Filed: August 16, 2010
    Publication date: December 9, 2010
    Inventors: Keun-Kyu Song, Tae-Young Choi, Tae-Hyung Hwang, Seung-Hwan Cho
  • Publication number: 20100276681
    Abstract: A display device includes an insulating substrate; a plurality of gate wires formed on the insulating substrate, the plurality of gate wires including a gate electrode; a gate insulating layer covering the plurality of gate wires; a transparent electrode layer formed on the gate insulating layer, the transparent electrode layer including a source electrode and a drain electrode disposed about the gate electrode and spaced apart from each other to define a channel region disposed therebetween; a plurality of data wires covering a predetermined portion of the transparent electrode layer and being crossed insulatedly with the plurality of gate wires to define pixels; and an organic semiconductor layer formed on the channel region for each pixel, a predetermined portion of the organic semiconductor layer being operatively connected with the source electrode, the drain electrode, and the gate electrode to form a transistor having an improved characteristic and a novel structure.
    Type: Application
    Filed: July 13, 2010
    Publication date: November 4, 2010
    Inventors: Keun-kyu SONG, Bo-Sung Kim
  • Patent number: 7812797
    Abstract: An organic light emitting device includes first and second sub pixels. The first sub pixel includes at least one first sub pixel that emits a light of original colors, and the second sub pixel includes at least one second sub pixel that emits a light of complementary colors, wherein a specific sub pixel is selected from the first and second sub pixels and a light emitting efficiency of a remaining sub pixels are adjusted according to a light emitting efficiency of a selected sub pixel from among the first and second sub pixels, so that the OLED displays a white color when each sub pixel emits a maximum amount of light.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: October 12, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In-Su Joo, Young-Chol Yang, Keun-Kyu Song
  • Publication number: 20100255633
    Abstract: A manufacturing method for a thin film transistor array panel including forming a gate electrode, forming an insulating layer on the gate electrode, sequentially forming a lower conducting layer and a upper conducting layer on the insulating layer, etching the upper conducting layer to form a first source electrode and a first drain electrode, etching the lower conducting layer to form the second source electrode and the second drain electrode, over-etching the second source electrode and the second drain electrode, and forming an organic semiconductor between the second source electrode and the second drain electrode.
    Type: Application
    Filed: June 21, 2010
    Publication date: October 7, 2010
    Inventors: Seung-Hwan CHO, Bo-Sung Kim, Keun-Kyu Song, Tae-Young Choi, Min-Ho Yoon, Jung-Hun Noh
  • Patent number: 7808696
    Abstract: An electrophoretic display device having improved frontal reflectance includes a first substrate including a first electrode of a transparent material having a first optical pattern, a second substrate opposing the first substrate and including a plurality of second electrodes, a spacer interposed between the first and second substrates to define a space between the first and second substrates, and a image display layer formed in the space formed by the first and second substrates and the spacer to display an image by an electric field generated between the first and second electrodes.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: October 5, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo Jae Lee, Seong Sik Shin, Nam Seok Roh, Keun Kyu Song
  • Patent number: 7803669
    Abstract: An organic thin film transistor substrate includes a gate line formed on a substrate, a data line intersecting the gate line and defining a subpixel area, an organic thin film transistor including a gate electrode connected to the gate line, a source electrode connected to the data line, a drain electrode facing the source electrode, and an organic semiconductor layer forming a channel between the source and drain electrodes, a passivation layer parallel with the gate line, for covering the organic semiconductor layer and peripheral regions of the organic semiconductor layer, and a bank insulating layer for determining the position of the organic semiconductor layer and the passivation layer.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: September 28, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung Hwan Cho, Bo Sung Kim, Keun Kyu Song
  • Patent number: 7800101
    Abstract: A thin film transistor array panel includes a substrate, a plurality of first and second signal lines crossing each other on the substrate, source electrodes connected to the first signal lines, drain electrodes connected to the second signal lines, pixel electrodes connected to the drain electrodes, a first partition formed on the source and drain electrodes and having a first opening, wherein a lower width of the first opening is wider than an upper width of the first opening, an organic semiconductor formed in the first opening and at least overlapping the portions of the source electrode and the drain electrode, and a gate electrode connected to the second signal line and at least overlapping the portion of the organic semiconductor.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: September 21, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun-Kyu Song, Tae-Young Choi, Tae-Hyung Hwang, Seung-Hwan Cho
  • Publication number: 20100216267
    Abstract: A method for a thin film transistor array panel includes forming a gate line and a pixel electrode on a substrate, forming a gate insulating layer covering the gate line, forming a data line including a source electrode and a drain electrode on the gate insulating layer, forming an interlayer insulating layer covering the data line and the drain electrode on the gate insulating layer, forming a first opening in the interlayer insulating layer, forming an organic semiconductor in the first opening, forming a passivation layer on the organic semiconductor and the interlayer insulating layer, and forming a second opening in the interlayer insulating layer to expose the pixel electrode.
    Type: Application
    Filed: May 3, 2010
    Publication date: August 26, 2010
    Inventors: Seung-Hwan CHO, Bo-Sung Kim, Keun-Kyu Song, Tae-Young Choi, Jung-Hun Noh
  • Patent number: 7781759
    Abstract: A display device includes an insulating substrate; a plurality of gate wires formed on the insulating substrate, the plurality of gate wires including a gate electrode; a gate insulating layer covering the plurality of gate wires; a transparent electrode layer formed on the gate insulating layer, the transparent electrode layer including a source electrode and a drain electrode disposed about the gate electrode and spaced apart from each other to define a channel region disposed therebetween; a plurality of data wires covering a predetermined portion of the transparent electrode layer and being crossed insulatedly with the plurality of gate wires to define pixels; and an organic semiconductor layer formed on the channel region for each pixel, a predetermined portion of the organic semiconductor layer being operatively connected with the source electrode, the drain electrode, and the gate electrode to form a transistor having an improved characteristic and a novel structure.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: August 24, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun-kyu Song, Bo-sung Kim
  • Patent number: 7781774
    Abstract: A thin film transistor array panel and a method of manufacturing the same include: a substrate; a data line formed on the substrate; a gate line intersecting the data line and including a gate electrode; a source electrode connected to the data line; a drain electrode opposite the source electrode; an organic semiconductor partly in contact with the source electrode and the drain electrode; a gate insulating member positioned between the gate electrode and the organic semiconductor; and an insulating bank having an opening where the organic semiconductor and the gate insulating member are positioned and is formed in a cross shape in which a horizontal part and a vertical part intersect.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: August 24, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-Hwan Cho, Young-Min Kim, Keun-Kyu Song