Patents by Inventor Seong-Kweon Heo

Seong-Kweon Heo 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: 20130044095
    Abstract: An organic light emitting diode (OLED) display includes: a substrate; a first and a second thin film transistor (TFT) both disposed on the substrate and both having an active layer, a gate, a source and a drain electrode. A gate line is connected to the gate electrode of the first TFT, and a data line is connected to the source electrode of the first TFT. A common power source line is connected to the source electrode of the second TFT, intersects the gate line, and is parallel to the data line. A pixel electrode is connected to the drain electrode of the second TFT. An organic emission layer is disposed on the first electrode. A common electrode line is disposed on the organic emission layer. A secondary common power source line is formed with the same material as and is parallel to the common electrode line.
    Type: Application
    Filed: February 6, 2012
    Publication date: February 21, 2013
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Seong-Kweon Heo, Ki-Nyeng Kang
  • Publication number: 20120329190
    Abstract: An organic light emitting diode display includes a substrate. A control electrode is on the substrate. A gate insulating film covers the control electrode. An input electrode and an output electrode are on the gate insulating film and face each other. An oxide semiconductor is between the input electrode and the output electrode and on the control electrode. A pixel electrode is on portions of the edges of the output electrode and is electrically connected. An organic light emitting member is on the pixel electrode. A common electrode is on the organic light emitting member. The oxide semiconductor and the pixel electrode may be of the same layer.
    Type: Application
    Filed: September 7, 2012
    Publication date: December 27, 2012
    Inventors: Mu-Gyeon KIM, Byoung-Seong JEONG, Seong-Kweon HEO, Min-Chul SHIN, Jong-Moo HUH, Chang-Mo PARK
  • Publication number: 20120292611
    Abstract: An organic light-emitting display apparatus including: a substrate; a thin-film transistor (TFT) formed on the substrate and including a gate electrode, a source electrode, a drain electrode, and an active layer; a first electrode formed on the substrate and electrically connected to the drain electrode; an intermediate layer formed on the first electrode and including an organic light-emitting layer; a second electrode formed on the intermediate layer; and an insertion layer formed between the first electrode and the intermediate layer and including an oxide.
    Type: Application
    Filed: April 10, 2012
    Publication date: November 22, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Seong-Kweon HEO, Mu-Gyeom KIM
  • Patent number: 8304987
    Abstract: An organic light emitting display apparatus and a method of fabricating the same are provided. The organic light emitting display apparatus includes a pixel unit on which an organic light emitting device is formed, a thin film transistor (TFT) electrically connected to the pixel unit and a data line and a scan line electrically connected to the TFT and disposed crossing each other on a substrate. The data line and the scan line are formed in one layer. A bridge that allows one of the data line and the scan line to bypass the other is on an intersection of the data line and the scan line.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: November 6, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Kyu Kim, Seong-Kweon Heo
  • Patent number: 8304981
    Abstract: An organic light emitting diode display includes a substrate. A control electrode is on the substrate. A gate insulating film covers the control electrode. An input electrode and an output electrode are on the gate insulating film and face each other. An oxide semiconductor is between the input electrode and the output electrode and on the control electrode. A pixel electrode is on portions of the edges of the output electrode and is electrically connected. An organic light emitting member is on the pixel electrode. A common electrode is on the organic light emitting member. The oxide semiconductor and the pixel electrode may be of the same layer.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: November 6, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mu-Gyeom Kim, Byoung-Seong Jeong, Seong-Kweon Heo, Min-Chul Shin, Jong-Moo Huh, Chang-Mo Park
  • Publication number: 20120205647
    Abstract: An organic light-emitting display device includes: a substrate having a transistor region and a thin-film transistor having a gate electrode, a source/drain electrode and an active layer sequentially formed on the transistor region, wherein a portion of the source/drain electrode is between the active layer and substrate.
    Type: Application
    Filed: December 6, 2011
    Publication date: August 16, 2012
    Inventor: Seong-Kweon Heo
  • Patent number: 8168981
    Abstract: A display substrate includes; a gate line disposed on a substrate, a first insulating layer disposed on the substrate including the gate line, the first insulating layer including an opening part extended in a direction crossing the gate line, a data line disposed on the first insulating layer and an inner surface of the opening part, the data line extending in a direction substantially parallel with an extension direction of the opening part, a protective layer disposed on the first insulating layer and the data line, a switching element electrically connected to the gate line and the data line and a pixel electrode electrically connected to the switching element.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: May 1, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Kweon Heo, Chun-Gi You
  • Publication number: 20120052626
    Abstract: A thin film transistor and a manufacturing method thereof are provided. In the manufacturing method of the thin film transistor a semiconductive active layer and a semiconductor passivation layer are sequentially formed such that the semiconductor passivation layer protectively covers the semiconductive active layer. Then the stacked combination of the semiconductive active layer and semiconductor passivation layer are patterned by using a same patterning mask so that formed islands of the semiconductive active layer continue to be protectively covered by formed islands of the semiconductor passivation layer. In one embodiment, the semiconductive active layer is formed of a semiconductive oxide.
    Type: Application
    Filed: October 28, 2011
    Publication date: March 1, 2012
    Inventors: Seong-Kweon HEO, Min-Chul Shin, Chang-Mo Park
  • Patent number: 8071977
    Abstract: A thin film transistor and a manufacturing method thereof are provided. In the manufacturing method of the thin film transistor a semiconductive active layer and a semiconductor passivation layer are sequentially formed such that the semiconductor passivation layer protectively covers the semiconductive active layer. Then the stacked combination of the semiconductive active layer and semiconductor passivation layer are patterned by using a same patterning mask so that formed islands of the semiconductive active layer continue to be protectively covered by formed islands of the semiconductor passivation layer. In one embodiment, the semiconductive active layer is formed of a semiconductive oxide.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: December 6, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Kweon Heo, Min-Chul Shin, Chang-Mo Park
  • Publication number: 20110163329
    Abstract: An organic light emitting display apparatus and a method of fabricating the same are provided. The organic light emitting display apparatus includes a pixel unit on which an organic light emitting device is formed, a thin film transistor (TFT) electrically connected to the pixel unit and a data line and a scan line electrically connected to the TFT and disposed crossing each other on a substrate. The data line and the scan line are formed in one layer. A bridge that allows one of the data line and the scan line to bypass the other is on an intersection of the data line and the scan line.
    Type: Application
    Filed: October 20, 2010
    Publication date: July 7, 2011
    Inventors: Min-Kyu Kim, Seong-Kweon Heo
  • Patent number: 7888674
    Abstract: A thin-film transistor substrate includes a gate line, a capacitor dielectric layer, a gate insulation layer, an active pattern, a data line, a protection layer, and a pixel electrode. The gate wiring including a gate electrode, a lower storage electrode, and a gate metal pad is disposed on a substrate. The capacitor dielectric layer is disposed on the lower storage electrode and the gate insulation layer is disposed on the substrate. The active pattern includes an active layer and a dummy active layer disposed on the gate insulation layer in a gate electrode region and a gate metal pad region, respectively. A portion of the upper storage electrode is disposed on the capacitor dielectric layer exposed through a first contact hole in the gate insulation layer.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: February 15, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Kweon Heo, Chun-Gi You
  • Publication number: 20100200849
    Abstract: A thin film transistor and a manufacturing method thereof are provided. In the manufacturing method of the thin film transistor a semiconductive active layer and a semiconductor passivation layer are sequentially formed such that the semiconductor passivation layer protectively covers the semiconductive active layer. Then the stacked combination of the semiconductive active layer and semiconductor passivation layer are patterned by using a same patterning mask so that formed islands of the semiconductive active layer continue to be protectively covered by formed islands of the semiconductor passivation layer. In one embodiment, the semiconductive active layer is formed of a semiconductive oxide.
    Type: Application
    Filed: August 5, 2009
    Publication date: August 12, 2010
    Inventors: Seong-Kweon Heo, Min-Chul Shin, Chang-Mo Park
  • Publication number: 20100133991
    Abstract: An organic light emitting diode display includes a substrate. A control electrode is on the substrate. A gate insulating film covers the control electrode. An input electrode and an output electrode are on the gate insulating film and face each other. An oxide semiconductor is between the input electrode and the output electrode and on the control electrode. A pixel electrode is on portions of the edges of the output electrode and is electrically connected. An organic light emitting member is on the pixel electrode. A common electrode is on the organic light emitting member. The oxide semiconductor and the pixel electrode may be of the same layer.
    Type: Application
    Filed: April 30, 2009
    Publication date: June 3, 2010
    Inventors: Mu-Gyeom Kim, Byoung-Seong Jeong, Seong-Kweon Heo, Min-Chul Shin, Jong-Moo Huh, Chang-Mo Park
  • Patent number: 7687805
    Abstract: In a metal wiring, a method of forming the metal wiring, a display substrate having the metal wiring and a method of manufacturing the display substrate, the metal wiring includes a metal film and a first amorphous carbon film. The metal film is formed on a base substrate using a copper-containing material, and the first amorphous carbon film is formed beneath the metal film. A process for forming the metal wiring including the amorphous carbon film may be greatly simplified, and generation of defects in the metal wiring may be prevented or reduced.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: March 30, 2010
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Seung-Hwan Shim, Ho-Min Kang, Hoon-Kee Min, Sung-Su Hong, Sun Park, Seong-Kweon Heo
  • Publication number: 20100044712
    Abstract: A thin-film transistor substrate includes a gate line, a capacitor dielectric layer, a gate insulation layer, an active pattern, a data line, a protection layer, and a pixel electrode. The gate wiring including a gate electrode, a lower storage electrode, and a gate metal pad is disposed on a substrate. The capacitor dielectric layer is disposed on the lower storage electrode and the gate insulation layer is disposed on the substrate. The active pattern includes an active layer and a dummy active layer disposed on the gate insulation layer in a gate electrode region and a gate metal pad region, respectively. A portion of the upper storage electrode is disposed on the capacitor dielectric layer exposed through a first contact hole in the gate insulation layer.
    Type: Application
    Filed: October 26, 2009
    Publication date: February 25, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seong-Kweon HEO, Chun-Gi YOU
  • Patent number: 7638373
    Abstract: According to a method of manufacturing a thin-film transistor (TFT) substrate, a gate insulation layer, a semiconductor layer, an ohmic contact layer, and a data metal layer are sequentially formed on a substrate. A photoresist pattern is formed in a source electrode area and a drain electrode area. A data metal layer is etched using the photoresist pattern as an etch-stop layer to form a data wire including a source electrode and a drain electrode. A photoresist pattern is reflowed to cover a channel region between a source electrode and the drain electrode. An ohmic contact layer and the semiconductor layer are etched using the reflowed photoresist pattern as an etch-stop layer to form an active pattern including an ohmic contact pattern and a semiconductor pattern. The reflowed photoresist pattern is etched back to expose a portion of the ohmic contact pattern in the channel region. The ohmic contact pattern is etched using the etched-back photoresist pattern as an etch-stop layer.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: December 29, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Kweon Heo, Chun-Gi You
  • Patent number: 7608493
    Abstract: A thin-film transistor substrate includes a gate line, a capacitor dielectric layer, a gate insulation layer, an active pattern, a data line, a protection layer, and a pixel electrode. The gate wiring including a gate electrode, a lower storage electrode, and a gate metal pad is disposed on a substrate. The capacitor dielectric layer is disposed on the lower storage electrode and the gate insulation layer is disposed on the substrate. The active pattern includes an active layer and a dummy active layer disposed on the gate insulation layer in a gate electrode region and a gate metal pad region, respectively. A portion of the upper storage electrode is disposed on the capacitor dielectric layer exposed through a first contact hole in the gate insulation layer.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: October 27, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Kweon Heo, Chun-Gi You
  • Publication number: 20090261340
    Abstract: A display substrate includes; a gate line disposed on a substrate, a first insulating layer disposed on the substrate including the gate line, the first insulating layer including an opening part extended in a direction crossing the gate line, a data line disposed on the first insulating layer and an inner surface of the opening part, the data line extending in a direction substantially parallel with an extension direction of the opening part, a protective layer disposed on the first insulating layer and the data line, a switching element electrically connected to the gate line and the data line and a pixel electrode electrically connected to the switching element.
    Type: Application
    Filed: December 31, 2008
    Publication date: October 22, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seong-Kweon HEO, Chun-Gi YOU
  • Patent number: 7560316
    Abstract: A thin film transistor array panel includes interconnection members interposed between the underlying gate pads made of an Al-containing metal and the overlying contact assistants made of a transparent conductor such as ITO thereon to prevent corrosion of Al due to ITO, or gate-layer signal transmission lines. Gate-layer signal transmission lines are directly connected to the data-layer signal transmission line to prevent corrosion of Al due to ITO in the thin film transistor array panel according to an embodiment of the present invention. The color filters are formed on the thin film transistor array panel to prevent misalignment between the two display panels so as to increase the aperture ratio.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: July 14, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Kweon Heo, Chun-Gi You, Min-Hyuk Choi
  • Publication number: 20090075436
    Abstract: A method of manufacturing a thin-film transistor (TFT) includes forming an amorphous silicon layer on a substrate, crystallizing the amorphous silicon layer into a polycrystalline silicon layer using a laser beam, and selectively etching a protrusion formed at a grain boundary in the polycrystalline silicon layer using a hydroxide etchant.
    Type: Application
    Filed: August 20, 2008
    Publication date: March 19, 2009
    Inventors: Seong-kweon Heo, Chun-gi You