Patents by Inventor Dong Choi

Dong 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).

  • Patent number: 9412801
    Abstract: An OLED display device includes a display area of a substrate to display images; a non-display area surrounding the display area and applying signals to pixels within the display area; a first thin film transistor formed in the non-display area of the substrate; a second thin film transistor formed in the display area of the substrate; a planarization film formed over the first and second thin film transistors; a first electrode formed on the planarization film in the non-display area and formed with at least one first opening; a second electrode formed on the planarization film and connected to a electrode of the second thin film transistor; a bank pattern formed on the second electrode and the first electrode and exposing a part of the second electrode. The bank pattern is adjacent to the first electrode.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: August 9, 2016
    Assignee: LG Display Co., Ltd.
    Inventor: Hee Dong Choi
  • Patent number: 9391131
    Abstract: Provided are an organic light emitting display device and a method of manufacturing the same. The organic light emitting display device includes: an emission unit including an organic light emitting diode, a pixel circuit unit including: a circuit configured to drive the emission unit, and a line configured to apply a signal to the circuit, and a light blocking layer covering the pixel circuit unit, and configured to block light input to the pixel circuit unit, and a repair part disposed in the light blocking layer, the repair part being configured for repairing the line when a defect occurs in a pixel that includes the pixel circuit unit.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: July 12, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Hee Dong Choi, Sung Jin Hong, Soon Il Yun, Il Gi Jeong, Joong Sun Yoon, Kyungsu Lee, Seung-Yong Yang
  • Publication number: 20160164050
    Abstract: Provided are an organic light emitting display device and a method of manufacturing the same. The organic light emitting display device includes: an emission unit including an organic light emitting diode, a pixel circuit unit including: a circuit configured to drive the emission unit, and a line configured to apply a signal to the circuit, and a light blocking layer covering the pixel circuit unit, and configured to block light input to the pixel circuit unit, and a repair part disposed in the light blocking layer, the repair part being configured for repairing the line when a defect occurs in a pixel that includes the pixel circuit unit.
    Type: Application
    Filed: February 18, 2016
    Publication date: June 9, 2016
    Applicant: LG Display Co., Ltd.
    Inventors: Hee Dong CHOI, Sung Jin HONG, Soon Il YUN, Il Gi JEONG, Joong Sun YOON, Kyungsu LEE, Seung-Yong YANG
  • Patent number: 9362533
    Abstract: An OLED device is disclosed. The OLED device includes: a substrate defined into an active area in which a plurality of pixels are formed in a matrix shape, a GIP (gate-in-panel) area in which drive elements are formed, a ground contact area, and a seal line area; a thin film transistor formed in each pixel region within the active area; an organic light emission diode formed on a protective film and configured to include a first electrode, an organic light emission layer and a second electrode; a bank layer formed to divide the organic light emission diode into pixel units; a signal wiring formed in the ground contact area and the seal line area; and an extended portion formed from the same material as the first electrode of the organic light emission diode and configured to cover the signal wiring, wherein a seal line within in the seal line area is formed on an edge of the signal wiring, which is covered with the extended portion, and an interlayer insulation film adjacent to the edge of the signal wiring.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: June 7, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hee Dong Choi, Seung Joon Jeon
  • Publication number: 20160118611
    Abstract: Disclosed is a white organic light emitting device for enhancing emission efficiency and a color viewing angle or a color reproduction rate. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, a second emission part on the first emission part, the second emission part having a second emission layer, and a third emission part on the second emission part, the third emission part having a third emission layer. At least two emission layers of the first to third emission layers emit lights having a same color to enhance emission efficiency and a color viewing angle, and the at least two emission layers are adjacent to each other.
    Type: Application
    Filed: July 20, 2015
    Publication date: April 28, 2016
    Inventors: Mi-Young Han, Chang Wook Han, Tae Il Kum, Gwi Jeong Cho, Tae Shick Kim, Se Ung Kim, Hee Dong Choi
  • Patent number: 9312277
    Abstract: An array substrate for a display device includes: a substrate; first and second gate electrodes of impurity-doped polycrystalline silicon on the substrate; a gate insulating layer on the first and second gate electrodes; first and second active layers of intrinsic polycrystalline silicon on the gate insulating layer, the first and second active layers corresponding to the first and second active layers, respectively; an interlayer insulating layer on the first and second active layers and including first to fourth active contact holes, the first and second active contact holes exposing side portions of the first active layer, the third and fourth active contact holes exposing side portions of the second active layer; first and second ohmic contact layers of impurity-doped amorphous silicon on the interlayer insulating layer, the first ohmic contact layer contacting the first active layer through the first and second active contact holes, the second ohmic contact layer contacting the second active layer throug
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: April 12, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Hee-Dong Choi
  • Patent number: 9281352
    Abstract: Provided are an organic light emitting display device and a method of manufacturing the same. The organic light emitting display device includes: an emission unit including an organic light emitting diode, a pixel circuit unit including: a circuit configured to drive the emission unit, and a line configured to apply a signal to the circuit, and a light blocking layer covering the pixel circuit unit, and configured to block light input to the pixel circuit unit, and a repair part disposed in the light blocking layer, the repair part being configured for repairing the line when a defect occurs in a pixel that includes the pixel circuit unit.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: March 8, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Hee Dong Choi, Sung Jin Hong, Soon Il Yun, Il Gi Jeong, Joong Sun Yoon, Kyungsu Lee, Seung-Yong Yang
  • Patent number: 9277305
    Abstract: An object of the present invention is to provide a suspension for a sound transducer which has a central portion serving as a center diaphragm and which has a cover layer and a copper pattern partially removed to prevent a decrease in sound pressure from being caused by an increase in weight of a vibration system. According to the present invention, there is provided a suspension for a sound transducer which includes a central portion, a peripheral portion, and a support portion for connecting the central portion to the peripheral portion, the suspension comprising: a base film, a conductive film attached on the base film by means of an adhesive, and a cover layer attached on the conductive film by an adhesive, wherein at least part of the cover layer disposed on the central portion is removed.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: March 1, 2016
    Assignee: EM-TECH. Co., Ltd.
    Inventors: Joong Hak Kwon, Ho Il Jeong, Kyu Dong Choi, In Ho Jeong
  • Patent number: 9274681
    Abstract: A mobile terminal and method of controlling the same are disclosed. The mobile terminal includes a touchscreen and a control unit for receiving a first command according to a state of an object in near-proximity to the touchscreen, and receiving a second command according to a state of the object contacting the touchscreen.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: March 1, 2016
    Assignee: LG ELECTRONICS INC.
    Inventor: Kyung Dong Choi
  • Publication number: 20150381845
    Abstract: Disclosed is an apparatus for obtaining an image. The apparatus for obtaining an image includes a light source, a scanner, a first beam splitter, and a light receiving unit. The light source generates a laser pulse. The scanner irradiates the laser pulse in a first direction. The first beam splitter splits the laser pulse irradiated in the first direction in the first direction and a second direction and irradiates the split laser pulse. The light receiving unit detects reflected light. Accordingly, it is possible to irradiate light to a wide range by a light source having a relatively small divergent angle.
    Type: Application
    Filed: February 12, 2015
    Publication date: December 31, 2015
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jung Ho SONG, Myoung Sook OH, Ki Soo KIM, Bong Ki MHEEN, Jae Sik SIM, Yong Hwan KWON, Min Hyup SONG, Gyu Dong CHOI
  • Publication number: 20150372447
    Abstract: Provided herein is a pulse laser generator including a modulator configured to receive a continuous wave laser, and to modulate an intensity and phase of the continuous wave laser to generate a first pulse laser; and a chirping unit configured to chirp the first pulse laser to generate a second pulse laser.
    Type: Application
    Filed: June 5, 2015
    Publication date: December 24, 2015
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Min Hyup SONG, Bong Ki MHEEN, Hong Seok SEO, Yong Hwan KWON, Ki Soo KIM, Dong Sun KIM, Jung Ho SONG, Jae Sik SIM, Gyu Dong CHOI
  • Patent number: 9185494
    Abstract: An inner magnet type microspeaker including a suspension is provided which can maximize the size of a magnet. The inner magnet type microspeaker includes: a frame; a yoke installed inside of the frame and including a bottom surface and sidewalls bent upward from the bottom surface; a magnet bonded to an inside of the yoke; a voice coil located in a gap portion between the sidewalls of the yoke and the magnet; a diaphragm that vibrates by the voice coil; and a suspension where the voice coil is attached, and which guides vibrations of the diaphragm and the voice coil and includes a ring-shaped inner peripheral portion and an outer peripheral portion that surrounds the inner peripheral portion, spaced a predetermined distance apart from the inner peripheral portion, with one end and the other end being connected to the inner peripheral portion.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: November 10, 2015
    Assignee: EM-TECH Co., Ltd.
    Inventors: Kyu Dong Choi, Jong Soo Yoon
  • Publication number: 20150311236
    Abstract: A thin film transistor array substrate is discussed. The thin film transistor array substrate includes, according to one embodiment, gate and data lines crossing each other, a gate insulation film, a gate electrode, an active layer, an etch stop layer formed on the active layer to define a channel region of the active layer, and a source electrode and a drain electrode formed on the active layer. The etch stop layer is between the source and drain electrodes spaced apart from the etch stop layer. The source electrode and the drain electrode include a first electrode layer and a second electrode layer disposed on the first electrode. The first electrode layer is formed from a dry-etchable material and the second electrode layer is formed from a wet-etchable material.
    Type: Application
    Filed: July 6, 2015
    Publication date: October 29, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventor: Hee Dong CHOI
  • Publication number: 20150279864
    Abstract: An array substrate for a display device includes: a substrate; first and second gate electrodes of impurity-doped polycrystalline silicon on the substrate; a gate insulating layer on the first and second gate electrodes; first and second active layers of intrinsic polycrystalline silicon on the gate insulating layer, the first and second active layers corresponding to the first and second active layers, respectively; an interlayer insulating layer on the first and second active layers and including first to fourth active contact holes, the first and second active contact holes exposing side portions of the first active layer, the third and fourth active contact holes exposing side portions of the second active layer; first and second ohmic contact layers of impurity-doped amorphous silicon on the interlayer insulating layer, the first ohmic contact layer contacting the first active layer through the first and second active contact holes, the second ohmic contact layer contacting the second active layer throug
    Type: Application
    Filed: June 11, 2015
    Publication date: October 1, 2015
    Inventor: Hee-Dong CHOI
  • Publication number: 20150270513
    Abstract: An OLED device is disclosed. The OLED device includes: a substrate defined into an active area in which a plurality of pixels are formed in a matrix shape, a GIP (gate-in-panel) area in which drive elements are formed, a ground contact area, and a seal line area; a thin film transistor formed in each pixel region within the active area; an organic light emission diode formed on a protective film and configured to include a first electrode, an organic light emission layer and a second electrode; a bank layer formed to divide the organic light emission diode into pixel units; a signal wiring formed in the ground contact area and the seal line area; and an extended portion formed from the same material as the first electrode of the organic light emission diode and configured to cover the signal wiring, wherein a seal line within in the seal line area is formed on an edge of the signal wiring, which is covered with the extended portion, and an interlayer insulation film adjacent to the edge of the signal wiring.
    Type: Application
    Filed: June 5, 2015
    Publication date: September 24, 2015
    Inventors: Hee Dong Choi, Seung Joon Jeon
  • Publication number: 20150235253
    Abstract: The present invention relates to a method and a system for generating a relationship based on a recommendation, wherein a coupon including recommender information is transmitted to a potential client, the recommender information is acquired from the registered coupon, a relationship of a recommender and a recommendee is formed between the acquired recommender and the potential client registering the coupon, and compensation is provided when a product is purchased. The method for generating a relationship based on a recommendation, according to the present invention, comprises: a coupon generating step for generating the coupon including the recommender information; a coupon transmitting step for transmitting the generated coupon to the potential client; and an information acquiring step for acquiring the recommender information from the information of the registered or used coupon when the transmitted coupon is registered or used.
    Type: Application
    Filed: December 3, 2012
    Publication date: August 20, 2015
    Inventors: Keun Su Kim, Young Dong Choi
  • Patent number: 9105524
    Abstract: A thin film transistor array substrate including a gate line and a data line formed on a substrate, the gate and data lines crossing each other; a gate insulation film formed between the gate and data lines; a gate electrode formed at an intersection of the gate and data lines; an active layer formed on the gate insulation film to overlap the gate electrode; an etch stop layer formed on the active layer to define a channel region of the active layer; and a source electrode and a drain electrode formed on the active layer to partially overlap the active layer. The etch stop layer is between the source and drain electrodes, and the source and drain electrodes are spaced apart from the etch stop layer.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: August 11, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Hee Dong Choi
  • Patent number: 9087751
    Abstract: An array substrate for a display device includes: a substrate; first and second gate electrodes of impurity-doped polycrystalline silicon on the substrate; a gate insulating layer on the first and second gate electrodes; first and second active layers of intrinsic polycrystalline silicon on the gate insulating layer, the first and second active layers corresponding to the first and second active layers, respectively; an interlayer insulating layer on the first and second active layers and including first to fourth active contact holes, the first and second active contact holes exposing side portions of the first active layer, the third and fourth active contact holes exposing side portions of the second active layer; first and second ohmic contact layers of impurity-doped amorphous silicon on the interlayer insulating layer, the first ohmic contact layer contacting the first active layer through the first and second active contact holes, the second ohmic contact layer contacting the second active layer throug
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: July 21, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Hee-Dong Choi
  • Patent number: 9088840
    Abstract: The present invention relates to a vibration module for a sound transducer and, more particularly, to a vibration module for a sound transducer which can prevent sound leakage by minimizing contacts between a diaphragm and a voice coil. The vibration module for the sound transducer according to the present invention comprises: a substrate having an inner portion and an outer portion, an electrical connection portion for applying electrical signals to a voice coil being provided on the inner portion and a terminal being provided on the outer portion, for performing electrical connection between the electrical connection portion and the terminal; a first diaphragm attached between the inner portion and outer portion of the substrate; and the voice coil mounted on the inside of the inner portion of the substrate with a certain distance from the first diaphragm and electrically connected to the electrical connection portion.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: July 21, 2015
    Assignee: EM-TECH. Co., Ltd.
    Inventors: Kyu Dong Choi, Kil Dong Park, In Ho Jeong, Joong Hak Kwon
  • Patent number: 9076745
    Abstract: An OLED device is disclosed. The OLED device includes: a substrate defined into an active area in which a plurality of pixels are formed in a matrix shape, a GIP (gate-in-panel) area in which drive elements are formed, a ground contact area, and a seal line area; a thin film transistor formed in each pixel region within the active area; an organic light emission diode formed on a protective film and configured to include a first electrode, an organic light emission layer and a second electrode; a bank layer formed to divide the organic light emission diode into pixel units; a signal wiring formed in the ground contact area and the seal line area; and an extended portion formed from the same material as the first electrode of the organic light emission diode and configured to cover the signal wiring.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: July 7, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hee Dong Choi, Seung Joon Jeon