Patents by Inventor Byoung-Kwon Choo

Byoung-Kwon Choo 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: 20110297949
    Abstract: An organic light emitting display and method of fabricating thereof, the display including a substrate including a first thin film transistor region and a second thin film transistor region; a buffer layer on the substrate; a first and a second semiconductor layer on the buffer layer; a gate insulating layer on the substrate; gate electrodes on the gate insulating layer and corresponding to the first semiconductor layer and the second semiconductor layer, respectively; source/drain electrodes insulated from the gate electrode and being connected to the first semiconductor layer and the second semiconductor layer, respectively; an insulating layer on the substrate; a first electrode connected to the source/drain electrode electrically connected to the first semiconductor layer; an organic layer on the first electrode; and a second electrode on the organic layer, wherein portions of the buffer layer corresponding to a source/drain region of the first semiconductor layer include a metal catalyst.
    Type: Application
    Filed: March 22, 2011
    Publication date: December 8, 2011
    Inventors: Won-Kyu Lee, Tae-Hoon Yang, Bo-Kyung Choi, Byoung-Kwon Choo, Kyu-Sik Cho, Yong-Hwan Park, Sang-Ho Moon, Min-Chul Shin, Yun-Gyu Lee, Joon-Hoo Choi
  • Publication number: 20110291122
    Abstract: A display device with the substrate divided into three areas. A semiconductor layer is formed in the first second areas and includes a channel area and source/drain areas; a gate insulating layer formed on the semiconductor layer in an area corresponding to the channel area; and a gate electrode formed on the gate insulating layer. The source/drain electrodes contact the source/drain areas, respectively; a pixel electrode is formed in the same layer but in a third area; an interlayer insulating layer is formed on a whole surface of the substrate including the formed structures; and a gate line is formed on the interlayer insulating layer and is electrically connected to a gate electrode of the first area through a via contact hole of the interlayer insulating layer.
    Type: Application
    Filed: May 24, 2011
    Publication date: December 1, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Min-Chul SHIN, Kyu-Sik CHO, Won-Kyu LEE, Tae-Hoon YANG, Byoung-Kwon CHOO, Yun-Gyu LEE, Yong-Hwan PARK, Sang-Ho MOON, Bo-Kyung CHOI
  • Publication number: 20110248271
    Abstract: The described technology relates generally to a thin film transistor comprising a gate electrode, a semiconductor layer and source/drain electrode, wherein the source/drain electrode is disposed in a range of a region in which the semiconductor layer is formed. Therefore, the present embodiments can provide a thin film transistor in which reliability is excellent because a change amount of threshold voltage is small.
    Type: Application
    Filed: April 12, 2011
    Publication date: October 13, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Byoung-Kwon CHOO, Kyu-Sik Cho, Won-Kyu Lee, Yong-Hwan Park, Sang-Ho Moon, Min-Chul Shin, Tae-Hoon Yang, Joon-Hoo Choi, Bo-Kyung Choi, Yun-Gyu Lee
  • Publication number: 20110186842
    Abstract: A method of manufacturing a thin film transistor and a thin film transistor, the method including sequentially forming a gate insulating layer, an amorphous silicon layer and an insulating layer on an entire top surface of a substrate having a gate electrode; patterning the insulating layer to form an etch stopper; and patterning the amorphous silicon layer to form a semiconductor layer.
    Type: Application
    Filed: December 14, 2010
    Publication date: August 4, 2011
    Inventors: Sang-Ho Moon, Kyu-Sik Cho, Won-Kyu Lee, Tae-Hoon Yang, Byoung-Kwon Choo, Yong-Hwan Park, Bo-Kyung Choi, Joon-Hoo Choi, Yun-Gyu Lee, Min-Chul Shin
  • Publication number: 20110169010
    Abstract: An organic light emitting diode display device and a method of manufacturing thereof, the device including a substrate, the substrate including a pixel part and a circuit part; a first semiconductor layer and a second semiconductor layer on the pixel part of the substrate; a gate insulating layer on an entire surface of the substrate; gate electrodes on the gate insulating layer, the gate electrodes corresponding to the first semiconductor layer and the second semiconductor layer, respectively; source/drain electrodes insulated from the gate electrodes, the source/drain electrodes being connected to the first and second semiconductor layers, respectively; a first electrode connected to the source/drain electrodes of the first semiconductor layer; an organic layer on the first electrode; a second layer on the organic layer; and a metal catalyst layer under the first semiconductor layer.
    Type: Application
    Filed: November 23, 2010
    Publication date: July 14, 2011
    Inventors: Yong-Hwan Park, Kyu-Sik Cho, Sang-Ho Moon, Byoung-Kwon Choo, Min-Chul Shin, Tae-Hoon Yang, Bo-Kyung Choi, Won-Kyu Lee, Yun-Gyu Lee, Joon-Hoo Choi
  • Publication number: 20110169009
    Abstract: In an organic light emitting diode (OLED) display and a manufacturing method thereof, the OLED display includes a substrate main body; an insulation layer pattern formed on the substrate main body, and including a first thickness layer and a second thickness layer thinner than the first thickness layer; a metal catalyst that is scattered on the first thickness layer of the insulation layer pattern; and a polycrystalline semiconductor layer formed on the insulation layer pattern, and divided into a first crystal area corresponding to the first thickness layer and to a portion of the second thickness layer adjacent to the first thickness layer and a second crystal area corresponding to the remaining part of the second thickness layer. The first crystal area of the polycrystalline semiconductor layer is crystallized through the metal catalyst, and the second crystal area of the polycrystalline semiconductor layer is solid phase crystallized.
    Type: Application
    Filed: October 21, 2010
    Publication date: July 14, 2011
    Applicant: Samsung Mobile Display Co. Ltd.
    Inventors: Won-Kyu Lee, Tae-Hoon Yang, Bo-Kyung Choi, Byoung-Kwon Choo, Sang-Ho Moon, Kyu-Sik Cho, Yong-Hwan Park, Joon-Hoo Choi, Min-Chul Shin, Yun-Gyu Lee
  • Publication number: 20110108840
    Abstract: An organic light emitting diode (OLED) display device and a method of fabricating the same are disclosed.
    Type: Application
    Filed: November 8, 2010
    Publication date: May 12, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Won-Kyu Lee, Kyu-Sik Cho, Tae-Hoon Yang, Byoung-Kwon Choo, Sang-Ho Moon, Bo-Kyung Choi, Yong-Hwan Park, Joon-Hoo Choi, Min-Chul Shin, Yun-Gyu Lee
  • Publication number: 20110095296
    Abstract: A thin film transistor (TFT) and an organic light emitting display device having the same are disclosed. In one embodiment, a TFT includes a gate electrode formed on a substrate. A gate insulating layer is formed on the substrate having the gate electrode. An active layer is formed on the gate insulating layer. A source electrode is formed over the active layer. A drain electrode is formed to substantially surround at least three surfaces of the source electrode on the active layer.
    Type: Application
    Filed: October 22, 2010
    Publication date: April 28, 2011
    Applicant: Samsung Mobile Display Co. Ltd.
    Inventors: Byoung-Kwon Choo, Kyu-Sik Cho, Won-Kyu Lee, Yong-Hwan Park, Sang-Ho Moon, Tae-Hoon Yang, Joon-Hoo Choi, Min-Chul Shin, Bo-Kyung Choi, Yun-Gyu Lee
  • Publication number: 20100117531
    Abstract: The present invention relates to an organic light emitting device and a manufacturing method thereof. An organic light emitting device includes a first substrate, a thin film structure disposed on the first substrate, a second substrate comprising an inner surface and an outer surface, a first sealing member disposed between the first substrate and the second substrate, the first sealing member comprising an inner surface and an outer surface, and a second sealing member disposed on the outer surface of the second substrate.
    Type: Application
    Filed: April 3, 2009
    Publication date: May 13, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-Kyu Park, Joon-Hoo Choi, Kyu-Sik Cho, Byoung-Kwon Choo, Yong-Hwan Park, Sang-Ho Moon
  • Publication number: 20100096638
    Abstract: A thin film transistor substrate that includes a substrate, first and second gate electrodes that are formed on the substrate, a gate insulating layer that is formed on the first and second gate electrodes, a first semiconductor and a second semiconductor that are formed on the gate insulating layer, and that overlap the first gate electrode and the second gate electrode, respectively, a first source electrode and a first drain electrode that are formed on the first semiconductor, and positioned opposed to and spaced from each other, a source electrode connected to the first drain electrode and a second drain electrode positioned opposed to and spaced from the second source electrode, wherein the second source and second drain electrodes are formed on the second semiconductor, and a pixel electrode that is electrically connected to the second drain electrode, a method of manufacturing the same, and a display apparatus having the same.
    Type: Application
    Filed: May 14, 2009
    Publication date: April 22, 2010
    Inventors: Byoung Kwon Choo, Joon Hoo Choi, Kyu-Sik Cho, Seung-Kyu Park, Yong-Hwan Park, Sang-Ho Moon
  • Patent number: 7618852
    Abstract: The present invention provides a phase transition method of an amorphous material, comprising steps of: depositing the amorphous material on a dielectric substrate; forming a cap layer on the amorphous material; depositing a metal on the cap layer; and crystallizing the amorphous material. According to the present invention, the surface of the amorphous material is protected by the cap layer, so that clean surface can be obtained and the roughness of the surface can be remarkably reduced during thermal process and sample handling. In addition, the cap layer is disposed between the amorphous material and the metal to diffuse the metal, so that the metal contamination due to the direct contact of the metal and the amorphous material in the conventional method can be remarkably reduced.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: November 17, 2009
    Assignee: Silicon Display Technology Co., Ltd.
    Inventors: Jin Jang, Jonghyun Choi, Do-Young Kim, Byoung-Kwon Choo
  • Publication number: 20060130939
    Abstract: The present invention provides a phase transition method of an amorphous material, comprising steps of: depositing the amorphous material on a dielectric substrate; forming a cap layer on the amorphous material; depositing a metal on the cap layer; and crystallizing the amorphous material. According to the present invention, the surface of the amorphous material is protected by the cap layer, so that clean surface can be obtained and the roughness of the surface can be remarkably reduced during thermal process and sample handling. In addition, the cap layer is disposed between the amorphous material and the metal to diffuse the metal, so that the metal contamination due to the direct contact of the metal and the amorphous material in the conventional method can be remarkably reduced.
    Type: Application
    Filed: November 6, 2003
    Publication date: June 22, 2006
    Inventors: Jin Jang, Jonghyun Choi, Do-Young Kim, Byoung-Kwon Choo