Patents by Inventor Hyang-A PARK

Hyang-A PARK 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: 8860055
    Abstract: A light emitting device according to the embodiment includes a first conductive semiconductor layer; an active layer under the first conductive semiconductor layer; a second conductive semiconductor layer under the active layer; a current blocking region under the second conductive semiconductor layer; a second electrode layer under the second conductive semiconductor layer and the current blocking region; and a first electrode layer including a protrusion protruding toward the first conductive semiconductor layer arranged, on the first conductive semiconductor layer.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: October 14, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventors: Kyong Jun Kim, Joo Hyang Park
  • Patent number: 8853016
    Abstract: A double gate thin-film transistor (TFT), and an organic light-emitting diode (OLED) display apparatus including the double gate TFT, includes a double gate thin-film transistor (TFT) including: a first gate electrode on a substrate; an active layer on the first gate electrode; source and drain electrodes on the active layer; a planarization layer on the substrate and the source and drain electrodes, and having an opening corresponding to the active layer; and a second gate electrode in the opening.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: October 7, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye-Hyang Park, Ki-Ju Im, Yong-Sung Park
  • Publication number: 20140201983
    Abstract: A dryer for an electrode substrate of a rechargeable battery according to an exemplary embodiment of the present invention includes: a drying oven for drying an electrode substrate by feeding the electrode substrate to an inlet and discharging it through an outlet; fixed guide rolls provided at a distance from each other between the inlet and the outlet to guide the electrode substrate; lifting guide rolls ascended or descended at one side of the respective fixed guide rolls to guide the moving electrode substrate; driving rolls disposed to correspond to locations of the lifting guide rolls; and a shuttle moving toward the outlet from the inlet.
    Type: Application
    Filed: June 21, 2013
    Publication date: July 24, 2014
    Inventors: Kwan-Seop SONG, Kyoung-Heon HEO, Ji-Hyang PARK, Gi-Sung KIM, Seon-Hyeok AN
  • Publication number: 20140087495
    Abstract: An organic light emitting element includes an organic light emitting diode formed on a substrate, coupled to a transistor including a gate, a source and a drain and including a first electrode, an organic thin film layer and a second electrode; a photo diode formed on the substrate and having a semiconductor layer including a high-concentration P doping region, a low-concentration P doping region, an intrinsic region and a high-concentration N doping region; and a controller that controls luminance of light emitted from the organic light emitting diode, to a constant level by controlling a voltage applied to the first electrode and the second electrode according to the voltage outputted from the photo diode.
    Type: Application
    Filed: November 25, 2013
    Publication date: March 27, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Yun-gyu LEE, Byoung-deog Choi, Hye-hyang Park, Ki-ju Im
  • Publication number: 20140036480
    Abstract: Provided are a lighting unit and a display device including the same. The lighting unit includes a bottom cover having a plurality of sidewalls, light emitting modules each including a board disposed on the bottom cover and a plurality of light emitting diodes mounted on the board, and a light-transmitting resin layer covering the bottom cover and the board.
    Type: Application
    Filed: October 11, 2013
    Publication date: February 6, 2014
    Inventor: Joo Hyang PARK
  • Patent number: 8592881
    Abstract: An organic light emitting element includes an organic light emitting diode formed on a substrate, coupled to a transistor including a gate, a source and a drain and including a first electrode, an organic thin film layer and a second electrode; a photo diode formed on the substrate and having a semiconductor layer including a high-concentration P doping region, a low-concentration P doping region, an intrinsic region and a high-concentration N doping region; and a controller that controls luminance of light emitted from the organic light emitting diode, to a constant level by controlling a voltage applied to the first electrode and the second electrode according to the voltage outputted from the photo diode.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: November 26, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun-gyu Lee, Byoung-deog Choi, Hye-hyang Park, Ki-ju Im
  • Patent number: 8568012
    Abstract: Provided are a lighting unit and a display device including the same. The lighting unit includes a bottom cover having a plurality of sidewalls, light emitting modules each including a board disposed on the bottom cover and a plurality of light emitting diodes mounted on the board, and a light-transmitting resin layer covering the bottom cover and the board.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: October 29, 2013
    Assignee: LG Innotek Co., Ltd.
    Inventor: Joo Hyang Park
  • Publication number: 20130250076
    Abstract: A method for displaying a three-dimensional (ā€œ3Dā€) image, wherein the method includes; sequentially displaying a left frame image corresponding to a left eye and a right frame image corresponding to a right eye on a display panel, blocking a light provided to a display block of the display panel when the display block displays a mixed image which includes a left eye image of the left frame image corresponding to the left eye and a right eye image of the right frame image corresponding to the right eye, and providing the light to the display block of the display panel when the display block displays only one of the left eye image and the right eye image.
    Type: Application
    Filed: May 20, 2013
    Publication date: September 26, 2013
    Applicant: Samsung Display Co., LTD.
    Inventors: Hyo-Chul LEE, Choong-Yull KWAK, Kyu-Hun LIM, Hyang-A PARK
  • Publication number: 20130230976
    Abstract: The present invention relates to a flat panel display device comprising a polysilicon thin film transistor and a method of manufacturing the same. Grain sizes of polysilicon grains formed in active channel regions of thin film transistors of a driving circuit portion and a pixel portion of the flat panel display device are different from each other. Further, the flat panel display device comprising P-type and N-type thin film transistors having different particle shapes from each other.
    Type: Application
    Filed: April 16, 2013
    Publication date: September 5, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Ji-Yong PARK, Jae-Bon Koo, Hye-Hyang Park, Ki-Yong Lee, Ul-Ho Lee
  • Patent number: 8486812
    Abstract: The present invention relates to a fabrication method for polycrystalline silicon thin that is capable of providing uniform crystallization of polycrystalline silicon thin film by laser using a mask having a mixed structure of laser transmission regions and laser non-transmission regions, wherein the laser transmission regions exist asymmetrically on the basis of a laser scanning directional axis, and the laser transmission regions exist symmetrically on the basis of a certain central axis, and the laser transmission regions are shifted to a certain distance on the basis of another axis parallel to the certain central axis, so that the laser transmission regions and non laser transmission regions are alternately positioned.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: July 16, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Yong Park, Hye-Hyang Park
  • Patent number: 8477125
    Abstract: An organic light-emitting display includes a substrate, a thin film transistor on the substrate, an organic light-emitting diode electrically connected to the thin film transistor, and a photo sensor having a plurality of photo diodes connected to one another in parallel.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: July 2, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye Hyang Park, Byoung Deog Choi, Sun A Yang, Youn Chul Oh, Eun Jung Lee, Won Seok Kang
  • Patent number: 8456520
    Abstract: A method for displaying a three-dimensional (ā€œ3Dā€) image, wherein the method includes; sequentially displaying a left frame image corresponding to a left eye and a right frame image corresponding to a right eye on a display panel, blocking a light provided to a display block of the display panel when the display block displays a mixed image which includes a left eye image of the left frame image corresponding to the left eye and a right eye image of the right frame image corresponding to the right eye, and providing the light to the display block of the display panel when the display block displays only one of the left eye image and the right eye image.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: June 4, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyo-Chul Lee, Choong-Yull Kwak, Kyu-Hun Lim, Hyang-A Park
  • Patent number: 8451196
    Abstract: An organic light emitting diode (OLED) display device and a method for aging the organic light emitting diode (OLED) display device. The OLED display device is constructed with an organic light emitting diode, a scan line for applying a scan signal, a data line for applying a data signal, a driving unit for applying the data signal in response to the scan signal, a driving transistor having a gate terminal electrically connected to the driving unit to supply a driving current to the organic light emitting diode in response to the data signal, and a first reverse bias transistor electrically connected between the gate terminal of the driving transistor and a first reverse bias voltage source.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: May 28, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye-Hyang Park, Sun-A Yang
  • Patent number: 8441049
    Abstract: The present invention relates to a flat panel display device comprising a polysilicon thin film transistor and a method of manufacturing the same. Grain sizes of polysilicon grains formed in active channel regions of thin film transistors of a driving circuit portion and a pixel portion of the flat panel display device are different from each other. Further, the flat panel display device comprising P-type and N-type thin film transistors having different particle shapes from each other.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: May 14, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Yong Park, Jae-Bon Koo, Hye-Hyang Park, Ki-Yong Lee, Ul-Ho Lee
  • Patent number: 8395157
    Abstract: A double gate thin-film transistor (TFT), and an organic light-emitting diode (OLED) display apparatus including the double gate TFT, includes a double gate thin-film transistor (TFT) including: a first gate electrode on a substrate; an active layer on the first gate electrode; source and drain electrodes on the active layer; a planarization layer on the substrate and the source and drain electrodes, and having an opening corresponding to the active layer; and a second gate electrode in the opening.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: March 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye-Hyang Park, Ki-Ju Im, Yong-Sung Park
  • Publication number: 20120313796
    Abstract: A car control system is disclosed. The car control system for controlling a car by being linked with a car control device (electronic control unit, ECU) that is installed inside the car for electronic control of the car can include: an authentication server configured to perform access authentication for a user terminal and configured to generate an authentication result based on least one of terminal information of the user terminal and vehicle identification information; and a car access device configured to be directly connected with the car control device through an internal network of the car and configured to determine whether a car control request for control of the car by the user terminal is to be relayed to the car control device according to the authentication result of the user terminal.
    Type: Application
    Filed: June 13, 2012
    Publication date: December 13, 2012
    Applicant: KT CORPORATION
    Inventors: Min-Gu LEE, Dong-Wan KIM, Soon-Hyang PARK, Jong-Han PARK, Won-Young JEONG
  • Patent number: 8314428
    Abstract: A thin film transistor including a lightly doped drain (LDD) region or offset region, wherein the thin film transistor is formed so that primary crystal grain boundaries of a polysilicon substrate are not positioned in the LDD or offset region.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: November 20, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Yong Park, Ki Yong Lee, Hye Hyang Park
  • Publication number: 20120064676
    Abstract: A thin film transistor includes a substrate, a semiconductor layer on the substrate, a thermal oxide layer on the semiconductor layer, a gate electrode on the thermal oxide layer, the gate electrode positioned to correspond to a channel region of the semiconductor layer, an interlayer insulating layer on the substrate, and source and drain electrodes electrically connected to the semiconductor layer.
    Type: Application
    Filed: November 21, 2011
    Publication date: March 15, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Hye-Hyang PARK, Byoung-Deog Choi, Dae-Woo Lee, Chang-Young Jeong, Moo-Jin Kim, Kyoung-Bo Kim
  • Publication number: 20120056230
    Abstract: A light emitting device according to the embodiment includes a first conductive semiconductor layer; an active layer under the first conductive semiconductor layer; a second conductive semiconductor layer under the active layer; a current blocking region under the second conductive semiconductor layer; a second electrode layer under the second conductive semiconductor layer and the current blocking region; and a first electrode layer including a protrusion protruding toward the first conductive semiconductor layer arranged, on the first conductive semiconductor layer.
    Type: Application
    Filed: November 10, 2011
    Publication date: March 8, 2012
    Inventors: Kyong Jun KIM, Joo Hyang Park
  • Publication number: 20120007084
    Abstract: A double gate thin-film transistor (TFT), and an organic light-emitting diode (OLED) display apparatus including the double gate TFT, includes a double gate thin-film transistor (TFT) including: a first gate electrode on a substrate; an active layer on the first gate electrode; source and drain electrodes on the active layer; a planarization layer on the substrate and the source and drain electrodes, and having an opening corresponding to the active layer; and a second gate electrode in the opening.
    Type: Application
    Filed: June 7, 2011
    Publication date: January 12, 2012
    Inventors: Hye-Hyang PARK, Ki-Ju Im, Yong-Sung Park