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).

  • Publication number: 20150137115
    Abstract: The present disclosure provides a solution for a metal oxide semiconductor thin film, including metal hydroxides dissolved in an aqueous or nonaqueous solvent and an acid/base titrant for controlling solubility of metal hydroxides. A solution is synthesized to improve stability and semiconductive performance of a device through addition of other metal hydroxides. The solution is applied on a substrate and annealed by using various annealing apparatuses to obtain a high-quality metal oxide thin film at low temperatures. The thin film is optically transparent, and thus can be applied to thin films for various electronic devices, solar cells, various sensors, memory devices, and the like.
    Type: Application
    Filed: March 4, 2011
    Publication date: May 21, 2015
    Applicant: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Jooho Moon, Youngmin Jeong, Tae Hwan Jun, Keun Kyu Song, Areum Kim, Yangho Jung
  • Publication number: 20140192307
    Abstract: A display device including: a first insulation substrate and a second insulation substrate facing each other; a first field generating electrode and a second field generating electrode disposed on the first insulation substrate, wherein the first and second field generating electrodes overlap each other via an insulating layer; a first signal line and a second signal line disposed on the first insulation substrate and connected to the first field generating electrode; a slit pattern disposed in the first field generating electrode or the second field generating electrode; and a spacer disposed between the first insulation substrate and the second insulation substrate, wherein the spacer overlaps a portion of the slit pattern.
    Type: Application
    Filed: May 15, 2013
    Publication date: July 10, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Hoon YANG, Jung-Hun NOH, Keun Kyu SONG, Hyun Sup LEE, Sang-Hee JANG
  • Publication number: 20140124775
    Abstract: A coating solution coating solution for forming a transparent dielectric thin film is provided. The coating solution includes a precursor for a first substance including aluminum, a precursor for a second substance including zirconium, and a solvent that dissolves the first and second substances. The solvent is composed of a first solvent and a second solvent.
    Type: Application
    Filed: September 3, 2013
    Publication date: May 8, 2014
    Applicant: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Joo Ho Moon, Woo Seok Yang, Keun Kyu Song, Yang Ho Jung
  • Patent number: 8399311
    Abstract: A thin film transistor array panel includes a gate line formed on a substrate, an interlayer insulating film formed on the gate line and having an opening, a gate insulator formed in the opening, a data line formed on the interlayer insulating film and including a first conductive layer made of a transparent conductive oxide and a second conductive layer made of a metal, a source electrode connected to the data line and made of a transparent conductive oxide, a drain electrode facing the source electrode and made of a transparent conductive oxide, a pixel electrode connected to the drain electrode, and an organic semiconductor contacting the source electrode and the drain electrode.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: March 19, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Keun-Kyu Song, Seong-Sik Shin, Bo-Sung Kim
  • Patent number: 8383449
    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: August 16, 2010
    Date of Patent: February 26, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Keun-Kyu Song, Tae-Young Choi, Tae-Hyung Hwang, Seung-Hwan Cho
  • Patent number: 8304280
    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: August 16, 2010
    Date of Patent: November 6, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Keun-Kyu Song, Tae-Young Choi, Tae-Hyung Hwang, Seung-Hwan Cho
  • Patent number: 8278648
    Abstract: An organic thin film transistor (TFT) substrate with a simplified fabrication process is disclosed. The TFT substrate includes a gate line and a data line and an organic TFT connected to the gate line and the data line. The gate line and the data line define a pixel region where a pixel electrode is formed. A first contact portion connects the data line to the organic TFT, and a second contact portion connects the pixel electrode to the organic TFT. A passivation layer covers the organic TFT. The organic TFT substrate also includes a bank insulating layer with a first contact hole for connecting the first contact portion to the organic TFT, a second contact hole for connecting the second contact portion to the organic TFT, a first sub bank defining a location of the gate insulating layer, and a second sub bank defining a location of the passivation layer.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: October 2, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae Young Choi, Bo Sung Kim, Keun Kyu Song, Seung Hwan Cho
  • Patent number: 8252625
    Abstract: The present invention provides an organic thin film transistor substrate and a method of manufacturing the same capable of uniformly forming the thickness of a gate insulating layer and a protective layer and preventing overflow of an organic semiconductive layer.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: August 28, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung Hwan Cho, Keun Kyu Song, Min Ho Yoon
  • Patent number: 8252626
    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: Grant
    Filed: June 21, 2010
    Date of Patent: August 28, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-Hwan Cho, Bo-Sung Kim, Keun-Kyu Song, Tae-Young Choi, Min-Ho Yoon, Jung-Hun Noh
  • Patent number: 8222070
    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: August 16, 2010
    Date of Patent: July 17, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun-Kyu Song, Tae-Young Choi, Tae-Hyung Hwang, Seung-Hwan Cho
  • Patent number: 8211757
    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: August 30, 2010
    Date of Patent: July 3, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung Hwan Cho, Bo Sung Kim, Keun Kyu Song
  • Patent number: 8174519
    Abstract: A liquid crystal display is provided, which includes: a plurality of pixel row groups, each pixel row group including at least one pixel row that includes a plurality of pixels arranged in a matrix and including switching elements; a plurality of gate lines connected to the switching elements and transmitting a gate-on voltage for turning on the switching elements; and a plurality of data lines connected to the switching elements and transmitting data voltages, wherein the switching elements in adjacent pixel row groups are connected to the data lines at opposite sides.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: May 8, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Baek-Woon Lee, Joon-Hak Oh, Keun-Kyu Song, Cheol-Woo Park
  • Patent number: 8129723
    Abstract: A thin film transistor array panel according to an embodiment of the present invention includes: a gate line; a data line intersecting the gate line; a thin film transistor connected to the gate line and the data line; a pixel electrode connected to the thin film transistor; and a shielding electrode electrically isolated from the data line, covering the data line at least in part, and having an aperture exposing the data line.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: March 6, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Baek-Woon Lee, Keun-Kyu Song, Joon-Hak Oh
  • Patent number: 8059329
    Abstract: A display substrate includes an insulation substrate, a gate line formed on the insulation substrate, a data line formed on the insulation substrate and crossing the gate line, a switching element formed on the insulation substrate and electrically connected to the gate line and the data line, and a pixel electrode formed on the insulation substrate. The pixel electrode is electrically connected to the switching element and includes a reflective electrode layer which reflects light and an absorption electrode layer which absorbs light.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: November 15, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun-Kyu Song, Ju-Han Bae, Seong-Sik Shin, Bo-Sung Kim
  • Patent number: 8049952
    Abstract: An elecotrophoretic display device includes a first substrate, a gate line formed on the first substrate, a data line crossing the gate line to form a defined area, a source electrode connected to the data line, a drain electrode facing the source electrode to define a channel area, a color filter formed on the first substrate, a first electrode formed on the color filter, the first electrode electrically connected to the drain electrode, a second substrate facing the first substrate, a second electrode formed on the second substrate and a fluid and a plurality of charged particles interposed between the first electrode and the second electrode.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: November 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun-Kyu Song, Jung-Han Shin, Bo-Sung Kim
  • Patent number: 8044392
    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: July 13, 2010
    Date of Patent: October 25, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun-kyu Song, Bo-sung Kim
  • Publication number: 20110233547
    Abstract: In a display apparatus and a method of manufacturing the display apparatus, a gate line, a data line, and a plurality of layers are formed on an array substrate on which a pixel area, a pad area, and a peripheral area are defined. During the forming processes of the gate line, the data line, and the layers, the gate line and the data line are partially exposed in the peripheral area, or contact portions formed on the gate line and the data line in the peripheral area are exposed. Thus, the gate line and the data line may be tested using the contact portions as electrical terminals during the manufacturing process of the display apparatus.
    Type: Application
    Filed: June 3, 2011
    Publication date: September 29, 2011
    Inventor: Keun-Kyu Song
  • Patent number: 7994494
    Abstract: An organic thin film transistor array panel includes; a substrate, a data line formed on the substrate, a gate line intersecting the data line and including a gate electrode, a first interlayer insulating layer formed on the gate line and the data line and including a first opening exposing the gate electrode, a gate insulator formed in the first opening, a source electrode disposed on the gate insulator and connected to the data line, a pixel electrode disposed on the gate insulator and including a drain electrode opposing the source electrode, a insulating bank formed on the source electrode and the drain electrode, the insulating bank defining a second opening which exposes portions of the source electrode and the drain electrode, and an organic semiconductor formed in the second opening.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: August 9, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bo-Sung Kim, Mun-Pyo Hong, Yong-Uk Lee, Joon-Hak Oh, Keun-Kyu Song, Seung-Hwan Cho
  • Patent number: 7977125
    Abstract: In a display apparatus and a method of manufacturing the display apparatus, a gate line, a data line, and a plurality of layers are formed on an array substrate on which a pixel area, a pad area, and a peripheral area are defined. During the forming processes of the gate line, the data line, and the layers, the gate line and the data line are partially exposed in the peripheral area, or contact portions formed on the gate line and the data line in the peripheral area are exposed. Thus, the gate line and the data line may be tested using the contact portions as electrical terminals during the manufacturing process of the display apparatus.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: July 12, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Keun-Kyu Song
  • Patent number: RE43574
    Abstract: A liquid crystal display is provided, which includes a liquid crystal panel assembly including a plurality of red, green, blue and white pixel areas, and a backlight unit placed at a side of the liquid crystal panel assembly. The light emitted from the backlight unit has a color coordinate (x, y) where x ranges from about 0.31 to about 0.34, and y ranges from about 0.32 to about 0.35.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: August 14, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun-Kyu Song, Jeong-Ye Choi, Nam-Seok Roh, Mun-Pyo Hong, Cheol-Woo Park