Patents by Inventor Tae-Young Choi

Tae-Young Choi 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: 20150008437
    Abstract: A thin film transistor is provided. A thin film transistor according to an exemplary embodiment of the present invention includes: a substrate; a gate line disposed on the substrate and including a gate electrode; a semiconductor layer disposed on the substrate and including at least a portion overlapping the gate electrode; a gate insulating layer disposed between the gate line and the semiconductor layer; and a source electrode and a drain electrode disposed on the substrate and facing each other over a channel region of the semiconductor layer. The gate insulating layer includes a first region and a second region, the first region corresponds to the channel region of the semiconductor layer, the first region is made of a first material, the second region is made of a second material, and the first material and the second material have different atomic number ratios of carbon and silicon.
    Type: Application
    Filed: September 24, 2014
    Publication date: January 8, 2015
    Inventors: Yeon Taek JEONG, Bo Sung KIM, Doo-Hyoung LEE, June Whan CHOI, Tae-Young CHOI, Kano MASATAKA
  • Patent number: 8929026
    Abstract: A base for a disk driving device includes a first bottom part including a region for movement of a recording head; a second bottom part including a mounting region of a component of a voice coil motor; a third bottom part which becomes a mounting region of a pivot bearing unit; and a fourth bottom part forming a peripheral portion of the third bottom part. The second and third bottom parts are partitioned by a rigidity reinforcing part.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: January 6, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Young Choi, Il Geun Jeon
  • Patent number: 8895977
    Abstract: A thin film transistor includes a substrate, an oxide semiconductor layer that is disposed on the substrate, a gate electrode that overlaps with the oxide semiconductor layer, a gate insulating layer that is disposed between the oxide semiconductor layer and the gate electrode, and a source electrode and a drain electrode that at least partially overlap with the oxide semiconductor layer and are spaced from each other. The gate insulating layer includes an oxide including a first material. The oxide semiconductor layer includes an oxide which includes a same material as the first material and a second material, and the source electrode and the drain electrode include an oxide that includes a same material as the second material and a third material, and a grain boundary is not formed on an interface between at least one of the gate insulating layer and the oxide semiconductor layer or between the oxide semiconductor layer, and the source electrode and the drain electrode.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: November 25, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Doo Hyoung Lee, Bo Sung Kim, Chan Woo Yang, Seung-Ho Jung, Yeon Taek Jeong, June Whan Choi, Tae-Young Choi
  • Patent number: 8877551
    Abstract: In a method of manufacturing a thin film transistor, a gate electrode is formed on a first surface of a base substrate, a oxide semiconductor layer, insulation layer and photo resist layer are formed an the fast surface of the base substrate having the gate electrode. The insulation layer and the oxide semiconductor layer are patterned using a first photo resist pattern to form an etch-stopper and an active pattern. A source and a drain electrode are formed on the base substrate having the active pattern and the etch-stopper, the source electrode and the drain electrode are overlapped with both ends of the etch-stopper and spaced apart from each other. Therefore, a manufacturing cost may be decreased by omitting a mask when forming the active pattern and the etch-stopper.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: November 4, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo-Sung Kim, Jun-Ho Song, Doo-Na Kim, Kang-Moon Jo, Tae-Young Choi, Masataka Kano, Yeon-Taek Jeong
  • Patent number: 8871577
    Abstract: A thin film transistor is provided. A thin film transistor according to an exemplary embodiment of the present invention includes: a substrate; a gate line disposed on the substrate and including a gate electrode; a semiconductor layer disposed on the substrate and including at least a portion overlapping the gate electrode; a gate insulating layer disposed between the gate line and the semiconductor layer; and a source electrode and a drain electrode disposed on the substrate and facing each other over a channel region of the semiconductor layer. The gate insulating layer includes a first region and a second region, the first region corresponds to the channel region of the semiconductor layer, the first region is made of a first material, the second region is made of a second material, and the first material and the second material have different atomic number ratios of carbon and silicon.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: October 28, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yeon Taek Jeong, Bo Sung Kim, Doo-Hyoung Lee, June Whan Choi, Tae-Young Choi, Kano Masataka
  • Publication number: 20140313732
    Abstract: A lighting device includes a heat sink for dissipating heat from a light source. The heat sink is located between an inner case and an outer case, and a power controller is located in the inner case. The light source may include one or more light emitting diodes.
    Type: Application
    Filed: June 27, 2014
    Publication date: October 23, 2014
    Inventors: Seok Jin KANG, Tae Young CHOI, Sungho HONG, Dong Soo KIM
  • Publication number: 20140301080
    Abstract: A lighting device may be provided that includes: a heat sink; a light source module which is disposed on the heat sink, includes a substrate having at least one hole, and includes a plurality of light emitting devices disposed on a top surface of the substrate; a power supply unit which is disposed within the heat sink and includes a support plate and a plurality of parts disposed on the support plate; and a soldering portion which connects the substrate and the support plate. The support plate includes an extended substrate which is disposed in the hole of the substrate. The extended substrate includes a through-portion which has passed through the hole of the substrate. The soldering portion electrically connects the through-portion of the extended substrate and the top surface of the substrate.
    Type: Application
    Filed: March 14, 2014
    Publication date: October 9, 2014
    Applicant: LG Innotek Co., Ltd.
    Inventors: Dong Nyung LIM, Do Hwan KIM, Sang Hoon LEE, Keun Tak JOO, Tae Young CHOI
  • Publication number: 20140301175
    Abstract: A base for a disk driving device includes a first bottom part including a region for movement of a recording head; a second bottom part including a mounting region of a component of a voice coil motor; a third bottom part which becomes a mounting region of a pivot bearing unit; and a fourth bottom part forming a peripheral portion of the third bottom part. The second and third bottom parts are partitioned by a rigidity reinforcing part.
    Type: Application
    Filed: August 26, 2013
    Publication date: October 9, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Young Choi, II Geun Jeon
  • Publication number: 20140268640
    Abstract: A lighting device comprises: a heat sink which comprises one surface and a receiving recess; a light emitting module which is disposed on the one surface of the heat sink and comprises a substrate and a plurality of light sources disposed on the substrate, wherein the substrate has a first hole disposed at the center thereof and a second hole; a power controller which is electrically connected to the light emitting module through the second hole of the substrate and is disposed in the receiving recess of the heat sink, wherein the light emitting module comprises a first light emitting module comprising a first substrate and a first light source, and a second light emitting module comprising a second substrate and a second light source, wherein the first substrate and the second substrate are disposed adjacent to each other.
    Type: Application
    Filed: May 22, 2014
    Publication date: September 18, 2014
    Applicant: LG Innotek Co., Ltd.
    Inventors: Tae Young CHOI, Won Jin SON, Dong Nyung LIM, Jung Ha HWANG, Seung Yeon LEE, Cheon Joo KIM, Sung Ho KIM
  • Publication number: 20140268413
    Abstract: A spindle motor includes a shaft; a sleeve rotatably supporting the shaft by fluid dynamic pressure; a holder provided outwardly of the sleeve and at least partially formed of a magnetic material; a stator core mounted on an outer surface of the holder; and a base member including a mounting part protruding upwardly in an axial direction and fixed to the holder. The holder has a core seating part protruding outwardly therefrom, and an upper surface of the stator core is seated on the core seating part.
    Type: Application
    Filed: May 30, 2014
    Publication date: September 18, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jae Woon PARK, Tae Young CHOI, Shin Young CHEONG, Hyun Chul LEE
  • Patent number: 8830622
    Abstract: There is provided a spindle motor including a base member formed by firing processing a steel plate and provided with a cylindrical installation part, a shaft support part including a sleeve insertedly disposed in the installation part, a shaft rotatably supported by the shaft support part, a rotor hub fixed to an upper end of the shaft and provided with a driving magnet, and a stator core installation member disposed on the base member so as to be disposed outwardly of the installation part in a radial direction and having a stator core, wherein the stator core installation member includes a body part, an installation wall part extending from an upper surface of the body part and a support part, and the rotor hub is provided with an extending wall extending from a bottom surface thereof to form a labyrinth seal with the installation wall part.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: September 9, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Il Geun Jeon, Tae Young Choi
  • Patent number: 8829771
    Abstract: A lighting device includes a heat sink for dissipating heat from a light source. The heat sink is located between an inner case and an outer case, and a power controller is located in the inner case. The light source may include one or more light emitting diodes.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: September 9, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventors: Seok Jin Kang, Tae Young Choi, Sungho Hong, Dong Soo Kim
  • Publication number: 20140240994
    Abstract: A lighting device includes a heat sink including a first heat radiation part and a second heat radiation part; a light source module including a substrate disposed on the first heat radiation part, and a light emitting device disposed on the substrate; and a power supply unit which is disposed within the second heat radiation part and supplies power to the light source module. The second heat radiation part includes an inner portion receiving the power supply unit therewithin, an outer portion enclosing the inner portion, and a first receiver disposed between the inner portion and the outer portion. The first heat radiation part includes an upper portion which is disposed on the inner portion of the second heat radiation part and on which the substrate of the light source module is disposed, and a lower portion disposed in the first receiver of the second heat radiation part.
    Type: Application
    Filed: February 11, 2014
    Publication date: August 28, 2014
    Applicant: LG Innotek Co., Ltd.
    Inventors: Dong Nyung LIM, Do Hwan KIM, Jae Jin KIM, Cheon Joo KIM, Sang Hoon LEE, Keun Tak JOO, Tae Young CHOI
  • Publication number: 20140233133
    Abstract: There is provided a spindle motor including a base member formed by firing processing a steel plate and provided with a cylindrical installation part, a shaft support part including a sleeve insertedly disposed in the installation part, a shaft rotatably supported by the shaft support part, a rotor hub fixed to an upper end of the shaft and provided with a driving magnet, and a stator core installation member disposed on the base member so as to be disposed outwardly of the installation part in a radial direction and having a stator core, wherein the stator core installation member includes a body part, an installation wall part extending from an upper surface of the body part and a support part, and the rotor hub is provided with an extending wall extending from a bottom surface thereof to form a labyrinth seal with the installation wall part.
    Type: Application
    Filed: April 19, 2013
    Publication date: August 21, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Il Geun JEON, Tae Young Choi
  • Publication number: 20140217899
    Abstract: A light emitting module includes a plurality of light emitting device packages configured to be sequentially turned on or off according to the level of external drive voltage and connected to one another in series. Each of the plurality of light emitting device packages includes a light emitting cell having at least one light emitting device, and an on/off controller configured to control to turn the light emitting cell on or off.
    Type: Application
    Filed: February 3, 2014
    Publication date: August 7, 2014
    Inventors: Il Yeong KANG, Ki Soo KWON, Sang Hoon LEE, Keun Tak JOO, Tae Young CHOI
  • Patent number: 8785263
    Abstract: A thin-film transistor substrate includes a gate line, and a gate electrode connected to the gate line, on a base substrate; an insulating layer on the gate electrode, the insulating layer including a first part and a second part, the first part having a hydrophobic property and the second part having a hydrophilic property; a data line extended in a different direction from the gate line, and a source electrode connected to the data line and on the second part of the insulating layer; a drain electrode on the second part of the insulating layer, the drain electrode spaced apart from the source electrode; a semi-conductor pattern overlapping the source electrode, the drain electrode and a gap between the spaced apart source and drain electrodes, where the semi-conductor pattern exposes the first part of the insulating layer; and a pixel electrode in contact with the drain electrode.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: July 22, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae-Young Choi, Bo-Sung Kim
  • Publication number: 20140191677
    Abstract: A light emitting module includes a body, first to Mth (wherein, M is an integer of 2 or greater) light emitting devices provided on the body to be spaced apart from each other, and a turn-on controller controlling the first to Mth light emitting devices to turn on. An mth (1?m?M) light emitting device among the first to Mth light emitting devices comprises first to Nth (wherein, N is an integer of 2 or greater) light emitting cells connected to each other in series. An nth (1?n?N) light emitting cell among the first to Nth light emitting cells includes at least one light emitting structure, and the turn-on controller simultaneously turns on or turns off the nth light emitting cells of the first to Mth light emitting devices.
    Type: Application
    Filed: January 2, 2014
    Publication date: July 10, 2014
    Inventors: Il Yeong KANG, Sang Hoon LEE, Keun Tak JOO, Tae Young CHOI
  • Publication number: 20140185163
    Abstract: There is provided a base plate including a body part formed of a metal plate, a pocket part including a recess formed in one surface of the body part by decreasing a thickness of the body part, a center plate part forming the pocket part and corresponding to the recess, a pocket periphery part forming the body part in a periphery of the pocket part, and a pocket edge part formed between the pocket periphery part and the center plate part and having a thickness different from that of the center plate part, wherein a height from a bottom surface of the body part to a top surface of the center plate part is identical to a height of the pocket periphery part, and a thickness of the pocket periphery part is greater than a thickness of the center plate part.
    Type: Application
    Filed: May 9, 2013
    Publication date: July 3, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Young CHOI, Il Geun JEON
  • Patent number: 8760596
    Abstract: A thin film transistor array panel includes a source electrode and a drain electrode on an insulating substrate, an oxide semiconductor on the insulating substrate and overlapping the source electrode and the drain electrode, a passivation layer overlapping the oxide semiconductor and on the insulating substrate, a gate electrode on the passivation layer, and a pixel electrode connected to the drain electrode. The gate electrode and the pixel electrode include a same material. The oxide semiconductor is between the source electrode and the gate electrode, and between the drain electrode and the gate electrode in a cross-sectional view of the thin film transistor array panel.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: June 24, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae-Young Choi, Bo Sung Kim, Young Min Kim, Seon-Pil Jang, Kang Moon Jo, Yeon Taek Jeong, Ki Beom Lee
  • Patent number: 8757841
    Abstract: A lighting device may be provided that includes a heat sink which includes one surface and a receiving recess; a light emitting module which is disposed on the one surface of the heat sink and includes a substrate and a plurality of light sources disposed on the substrate, wherein the substrate includes a hole and a plurality of via-holes; a power controller which includes an electrode pin electrically connected to the light emitting module through the via hole; and aninsulating inner case which receives the power controller therein and is disposed in the receiving recess of the heat sink, wherein the light sources include an lighting emitting diode.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: June 24, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventors: Tae Young Choi, Won Jin Son, Dong Nyung Lim, Jung Ha Hwang, Seung Yeon Lee, Cheon Joo Kim, Sung Ho Kim