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).

  • Patent number: 8927991
    Abstract: An OLED display includes a first polysilicon layer pattern on a substrate having a first gate electrode, a second gate electrode, and a first capacitor electrode, a gate insulating layer pattern, a second polysilicon layer pattern including a first active layer, a second active layer, and a capacitor polycrystalline dummy layer, a third amorphous silicon layer pattern including first source and drain resistant contact layers on a predetermined region of the first active layer, second source and drain resistant contact layers on a predetermined region of the second active layer, and a capacitor amorphous dummy layer on the capacitor polycrystalline dummy layer, and a data metal layer pattern including first source/drain electrodes, second source/drain electrodes, and a second capacitor electrode.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: January 6, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyu-Sik Cho, Joon-Hoo Choi, Byoung-Kwon Choo, Min-Chul Shin, Tae-Hoon Yang, Won-Kyu Lee, Yun-Gyu Lee, Bo-Kyung Choi, Yong-Hwan Park, Sang-Ho Moon
  • Publication number: 20140360987
    Abstract: A laser apparatus includes: a laser which selectively irradiates a laser beam to a portion of a target based on a laser driving voltage, where an intensity of the laser beam is substantially stabilized within about 10 nanoseconds; a stage which controls a relative location between the target and the laser based on a stage driving voltage; and a controller which applies the stage driving voltage to the stage, and applies the laser driving voltage to the laser
    Type: Application
    Filed: May 30, 2014
    Publication date: December 11, 2014
    Applicant: Samsung Display Co., LTD.
    Inventors: Hee-Geun SON, Byoung-Kwon CHOO, Do-Yeob KIM
  • Patent number: 8884295
    Abstract: A thin film transistor (TFT) having an active layer pattern, the active layer pattern including a first active layer pattern extending in a first direction; a second active layer pattern extending in the first direction and parallel to the first active layer pattern; and a third active layer pattern connecting a first end of the first active layer pattern to a first end of the second active layer pattern.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: November 11, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byoung-Kwon Choo, Hyun-Been Hwang, Kwon-Hyung Lee, Cheol-Ho Park
  • Patent number: 8860032
    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: Grant
    Filed: May 14, 2009
    Date of Patent: October 14, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byoung-Kwon Choo, Joon-Hoo Choi, Kyu-Sik Cho, Seung-Kyu Park, Yong-Hwan Park, Sang-Ho Moon
  • Publication number: 20140260430
    Abstract: A laser beam annealing apparatus includes a substrate support configured to support a substrate on which a silicon layer is formed, a laser beam irradiator configured to irradiate a laser beam onto the silicon layer, a photographic unit configured to obtain data with respect to at least a part of the substrate, and a position adjuster configured to adjust a position of at least one of the substrate support or the laser beam irradiator based on the data obtained by the photographic unit.
    Type: Application
    Filed: June 20, 2013
    Publication date: September 18, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byoung-Kwon Choo, Cheol-Ho Park, Hee-Geun Son, Do-Yeob Kim
  • Publication number: 20140226155
    Abstract: An apparatus for inspecting crystallization includes a substrate including a semiconductor layer, the semiconductor layer includes a plurality of crystallized regions separated from each other; a stage configured to change a position of the substrate, the substrate being seated thereon; a photographing unit configured to acquire image data regarding the semiconductor layer; an inspection unit configured to obtain inspection data regarding the semiconductor layer; and a control unit configured to output change data regarding a change in the position of the substrate according to the image data acquired by the photographing unit.
    Type: Application
    Filed: June 19, 2013
    Publication date: August 14, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byoung-Kwon Choo, Cheol-Ho Park, Hee-Geun Son, Do-Yeob Kim
  • Publication number: 20140202213
    Abstract: A laser annealing apparatus includes a lens unit configured to transmit a laser beam to be irradiated onto an irradiation target; a lens unit housing accommodating the lens unit and having an opening configured to allow the laser beam to pass through the opening; a blocking plate configured to block at least a portion of the laser beam reflected by the irradiation target after being transmitted through the lens unit to the irradiation target; and a cooling unit between the blocking plate and the lens unit housing.
    Type: Application
    Filed: May 7, 2013
    Publication date: July 24, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Cheol-Ho Park, Byoung-Kwon Choo, Eun-Cheol Kim, Hee-Geun Son, Jong-Hyun Yun
  • Publication number: 20140179044
    Abstract: An OLED display includes a first polysilicon layer pattern on a substrate having a first gate electrode, a second gate electrode, and a first capacitor electrode, a gate insulating layer pattern, a second polysilicon layer pattern including a first active layer, a second active layer, and a capacitor polycrystalline dummy layer, a third amorphous silicon layer pattern including first source and drain resistant contact layers on a predetermined region of the first active layer, second source and drain resistant contact layers on a predetermined region of the second active layer, and a capacitor amorphous dummy layer on the capacitor polycrystalline dummy layer, and a data metal layer pattern including first source/drain electrodes, second source/drain electrodes, and a second capacitor electrode.
    Type: Application
    Filed: February 28, 2014
    Publication date: June 26, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyu-Sik CHO, Joon-Hoo CHOI, Byoung-Kwon CHOO, Min-Chul SHIN, Tae-Hoon YANG, Won-Kyu LEE, Yun-Gyu LEE, Bo-Kyung CHOI, Yong-Hwan PARK, Sang-Ho MOON
  • Publication number: 20140051218
    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 30, 2013
    Publication date: February 20, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Won-Kyu LEE, Tae-Hoon YANG, Bo-Kyng CHOI, Byoung-Kwon CHOO, Sang-Ho MOON, Kyu-Sik CHO, Yong-Hwan PARK, Joon-Hoo CHOI, Min-Chul SHIN, Yun-Gyu LEE
  • Patent number: 8633484
    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: Grant
    Filed: March 22, 2011
    Date of Patent: January 21, 2014
    Assignee: Samsung Display Co., Ltd.
    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: 20130302928
    Abstract: An organic light emitting diode (OLED) display device and a method of fabricating the same are disclosed.
    Type: Application
    Filed: July 18, 2013
    Publication date: November 14, 2013
    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: 20130280895
    Abstract: Laser crystallization equipment includes a laser generator generating a laser beam, the laser beam being directed toward a processing target substrate, and a blade member over the processing target substrate, the blade member being configured to chop the laser beam with a predetermined width in two directions, wherein two ends of the laser beam chopped by the blade member are irradiated to the processing target substrate as diffraction light.
    Type: Application
    Filed: February 7, 2013
    Publication date: October 24, 2013
    Inventors: Byoung-Kwon CHOO, Cheol-Ho PARK, Kwon-Hyung LEE, Sung-Chul PYO
  • Patent number: 8551827
    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: Grant
    Filed: February 20, 2013
    Date of Patent: October 8, 2013
    Assignee: Samsung Display Co., Ltd.
    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
  • Patent number: 8513671
    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: Grant
    Filed: May 24, 2011
    Date of Patent: August 20, 2013
    Assignee: Samsung 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
  • Patent number: 8502206
    Abstract: An organic light emitting diode (OLED) display device and a method of fabricating the same are disclosed.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: August 6, 2013
    Assignee: Samsung 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: 20130164872
    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: February 20, 2013
    Publication date: June 27, 2013
    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
  • Patent number: 8389984
    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: Grant
    Filed: November 23, 2010
    Date of Patent: March 5, 2013
    Assignee: Samsung Display Co., Ltd.
    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: 20120299000
    Abstract: A thin film transistor (TFT) having an active layer pattern, the active layer pattern including a first active layer pattern extending in a first direction; a second active layer pattern extending in the first direction and parallel to the first active layer pattern; and a third active layer pattern connecting a first end of the first active layer pattern to a first end of the second active layer pattern.
    Type: Application
    Filed: May 2, 2012
    Publication date: November 29, 2012
    Inventors: Byoung-Kwon CHOO, Hyun-Been HWANG, Kwon-Hyung LEE, Cheol-Ho PARK
  • Publication number: 20120104393
    Abstract: An OLED display includes a first polysilicon layer pattern on a substrate having a first gate electrode, a second gate electrode, and a first capacitor electrode, a gate insulating layer pattern, a second polysilicon layer pattern including a first active layer, a second active layer, and a capacitor polycrystalline dummy layer, a third amorphous silicon layer pattern including first source and drain resistant contact layers on a predetermined region of the first active layer, second source and drain resistant contact layers on a predetermined region of the second active layer, and a capacitor amorphous dummy layer on the capacitor polycrystalline dummy layer, and a data metal layer pattern including first source/drain electrodes, second source/drain electrodes, and a second capacitor electrode.
    Type: Application
    Filed: September 13, 2011
    Publication date: May 3, 2012
    Inventors: Kyu-Sik Cho, Joon-Hoo Choi, Byoung-Kwon Choo, Min-Chul Shin, Tae-Hoon Yang, Won-Kyu Lee, Yun-Gyu Lee, Bo-Kyung Choi, Yong-Hwan Park, Sang-Ho Moon
  • Publication number: 20120001156
    Abstract: An organic light emitting diode display is disclosed.
    Type: Application
    Filed: March 31, 2011
    Publication date: January 5, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Kyu-Sik CHO, Won-Kyu LEE, Tae-Hoon YANG, Byoung-Kwon CHOO, Sang-Ho MOON, Bo-Kyung CHOI, Yong-Hwan PARK, Joon-Hoo CHOI, Min-Chul SHIN, Yun-Gyu LEE