Patents by Inventor Jong Hyun Choi

Jong Hyun 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: 9390655
    Abstract: An organic light emitting diode display includes a semiconductor pattern which includes a plurality of channel regions. A first gate insulating layer is on the semiconductor pattern, a first gate conductive layer is on the first gate insulating layer, a second gate insulating layer is on the first gate conductive layer, and a second gate conductive layer is on the second gate insulating layer. The channel regions include a first channel region that overlaps the first gate conductive layer and a second channel region that does not overlap the first gate conductive layer. The first channel region and the second channel region have different doping concentrations.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: July 12, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Cheol Yun Jeong, Jong Hyun Choi
  • Publication number: 20160195970
    Abstract: A touch screen panel includes a substrate including a touch active area and a touch non-active area, the touch non-active area being defined at an outer portion of the touch active area, lines located in the touch non-active area of the substrate, each of the lines including a metal layer including a nano structure and a transparent conductive oxide layer on the metal layer, a passivation layer covering parts of the lines such that distal ends of the lines are exposed, and pads electrically connected with the distal ends of the lines.
    Type: Application
    Filed: August 25, 2015
    Publication date: July 7, 2016
    Inventors: Jong-Hyun CHOI, Seung-Rok LEE
  • Patent number: 9384695
    Abstract: An organic light-emitting display apparatus for forming a frame by utilizing a plurality of subfields to display gradation. The organic light-emitting display apparatus includes a light-emitting pixel on a display area, a dummy pixel on a dummy area adjacent to the display area, and a repair line coupled to the dummy pixel. The light-emitting pixel is configured to emit light according to a logic level of a data signal applied during each of the subfields, and to adjust an emission time. The repair line is configured to couple the dummy pixel to a light-emitting element when the light-emitting element is separated from the light-emitting pixel, to provide a path to control a light emission of the light-emitting element according to a logic level of a dummy data signal applied to the dummy pixel.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: July 5, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Hoon Lee, Sung-Jae Moon, Wang-Jo Lee, Jong-Hyun Choi, Yong-Duck Son
  • Publication number: 20160181214
    Abstract: A stacked memory chip includes a chip input-output pad unit, a first semiconductor die and a second semiconductor die. The chip input-output pad unit includes a chip command-address pad unit, a lower chip data pad unit and an upper chip data pad unit that are to be connected to an external device. The first semiconductor die electrically is connected to the chip command-address pad unit and the lower chip data pad unit and electrically disconnected from the upper chip data pad unit. The second semiconductor die electrically is connected to the chip command-address pad unit and the upper chip data pad unit and electrically disconnected from the lower chip data pad unit. The input-output load may be reduced by selectively connecting each of the stacked semiconductor dies to one of the lower chip data pad unit and the upper chip data pad unit.
    Type: Application
    Filed: December 7, 2015
    Publication date: June 23, 2016
    Inventors: Ki-Seok OH, Doo-Hee HWANG, Dong-Yang LEE, Jong-Hyun CHOI
  • Patent number: 9368751
    Abstract: An organic light-emitting display apparatus includes a thin film transistor on a display region of a substrate, the thin film transistor facing an encapsulation member, an organic light-emitting device on the display region that includes an intermediate layer having an organic emission layer, a sealing member that is between the substrate and the encapsulation member and that surrounds the display region, an internal circuit unit between the display region and the sealing member, a passivation layer that extends to cover the internal circuit unit, a pixel defining layer on the passivation layer, and a getter between the substrate and the encapsulation member, and the getter at least partially overlapping the internal circuit unit.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: June 14, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong-Kweon Heo, Ki-Nyeng Kang, Jong-Hyun Choi
  • Publication number: 20160154733
    Abstract: In a method of operating a solid state drive including a non-volatile memory, a volatile memory and a controller, the controller reads fail information of the volatile memory from a fail information region included in the non-volatile memory. The controller maps a logical address of data to a physical address of the volatile memory based on a bad address list and a clean address list that are generated based on the fail information. The controller loads the data into the volatile memory according to the address mapping. The method of operating a solid state drive may block access to fail addresses corresponding to failed cells included in the solid state drive by sequentially mapping logical addresses to physical addresses of a volatile memory included in the solid state drive based on a clean address list and a bad address list that are generated based on a fail information.
    Type: Application
    Filed: December 1, 2015
    Publication date: June 2, 2016
    Inventors: SUN-YOUNG LIM, CHUL-UNG KIM, JONG-HYUN CHOI
  • Patent number: 9342176
    Abstract: An organic light emitting display device having an electrostatic capacitive type touch panel function with reduced thickness and improved luminance. A display panel of the organic light emitting display device includes a substrate, a display unit having a plurality of pixels on the substrate, and a touch sensing unit on the display unit. The touch sensing unit includes an encapsulation substrate and a capacitive pattern layer on a side of the encapsulation substrate facing the display unit. The capacitive pattern layer has a plurality of openings corresponding in position to the plurality of pixels.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: May 17, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Dae Kim, Jong-Hyun Choi, Choong-Youl Im, Il-Jeong Lee
  • Publication number: 20160133314
    Abstract: A semiconductor memory device includes a memory cell array and a refresh control circuit. The memory cell array includes a plurality of memory cell rows. The refresh control circuit performs a normal refresh operation on the plurality of memory cell rows and performs a weak refresh operation on a plurality of weak pages of the plurality of memory cell rows. Each of the weak pages includes at least one weak cell whose data retention time is smaller than normal cells. The refresh control circuit transmits a refresh flag signal to a memory controller external to the semiconductor memory device when the refresh control circuit performs the weak refresh operation on the weak pages in a normal access mode.
    Type: Application
    Filed: July 8, 2015
    Publication date: May 12, 2016
    Inventors: Doo-Hee HWANG, Sang-Kyu KANG, Dong-Yang LEE, Jae-Yeon CHOI, Jong-Hyun CHOI
  • Patent number: 9297583
    Abstract: Disclosed is a laundry drying rack. The laundry drying rack in accordance with an embodiment of the present invention includes a plurality of fixing hangers disposed in parallel to each other on a drying rack frame on which laundry is hung, a plurality of oscillating links each performing a swing motion with respect to each fixing hanger as a pivot axis, a plurality of oscillating hangers each connected to a lower end of the oscillating link and shaking the laundry, hung on the fixing hanger, at the bottom of the corresponding fixing hanger, a driving unit generating power, and an electric unit providing the power generated by the driving unit as an oscillating force for the oscillating links.
    Type: Grant
    Filed: August 24, 2013
    Date of Patent: March 29, 2016
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION YONSEI UNIVERSITY
    Inventors: Yoon Su Baek, Jong Hyun Choi, Myung Hoon Sim, Dong Hee Ahn, Nu Ri Seo
  • Publication number: 20160012775
    Abstract: An organic light emitting diode display includes a semiconductor pattern which includes a plurality of channel regions. A first gate insulating layer is on the semiconductor pattern, a first gate conductive layer is on the first gate insulating layer, a second gate insulating layer is on the first gate conductive layer, and a second gate conductive layer is on the second gate insulating layer. The channel regions include a first channel region that overlaps the first gate conductive layer and a second channel region that does not overlap the first gate conductive layer. The first channel region and the second channel region have different doping concentrations.
    Type: Application
    Filed: November 17, 2014
    Publication date: January 14, 2016
    Inventors: Cheol Yun JEONG, Jong Hyun CHOI
  • Patent number: 9202823
    Abstract: A thin film transistor array panel includes a plurality of pixels on a substrate. Each pixel of the plurality of pixels includes a driving and a switching thin film transistor. The driving thin film transistor includes a first semiconductor including first source and drain regions, a first gate electrode overlapping the first semiconductor, a gate insulating layer between the first semiconductor and the first gate electrode, an oxide layer between the first semiconductor and the gate insulating layer, and first source and drain electrodes. The switching thin film transistor includes a second semiconductor including second source and drain regions, a second gate electrode overlapping the second semiconductor, and second source and drain electrodes. The switching thin film transistor includes the gate insulating layer between the second semiconductor and the second gate electrode. The gate insulating layer contacts an upper portion of the second semiconductor.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: December 1, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byung Soo So, Jong Hyun Choi, Shin Moon Kang, IL Hun Seo
  • Patent number: 9202856
    Abstract: An organic light emitting diode display device is disclosed. The device includes, for example, a thin film transistor with an active layer on a substrate, a gate electrode, a source electrode, and a drain electrode, a pixel electrode formed on the same layer as the gate electrode, an electrode pattern partially exposing the pixel electrode and formed on the pixel electrode, a pixel electrode contact formed between the electrode pattern and the drain electrode and electrically connected to the drain electrode, a pixel defining film exposing the pixel electrode and formed to cover the drain electrode and the source electrode, an intermediate layer formed on the exposed pixel electrode and including an emissive layer, and an opposite electrode formed opposite the pixel electrode to at least partially cover the intermediate layer. A method of manufacturing the device is also disclosed.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: December 1, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Shin-Moon Kang, Jong-Hyun Choi, Byung-Soo So, Yong-Duck Son, Jin-Wook Seo
  • Patent number: 9184222
    Abstract: An organic light-emitting display device including a TFT comprising an active layer, a gate electrode comprising a lower gate electrode and an upper gate electrode, and source and drain electrodes insulated from the gate electrode and contacting the active layer; an organic light-emitting device electrically connected to the TFT and comprising a pixel electrode formed in the same layer as where the lower gate electrode is formed; and a pad electrode electrically coupled to the TFT or the organic light emitting device and comprising a first pad electrode formed in the same layer as in which the lower gate electrode is formed, a second pad electrode formed in the same layer as in which the upper gate electrode is formed, and a third pad electrode comprising a transparent conductive oxide, the first, second, and third pad electrodes being sequentially stacked.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: November 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Hyun Choi, Jae-Hwan Oh
  • Patent number: 9171865
    Abstract: A display apparatus includes an active layer that overlaps a substrate and comprises a channel region. The display apparatus further includes an insulating layer disposed on the substrate and the active layer. The display apparatus further includes a gate electrode disposed on the insulating layer, overlapping the channel region, and comprising a first gate electrode layer and a second gate electrode layer, wherein the first gate electrode layer is formed of a first material and is disposed between the insulating layer and the second electrode layer, and wherein the second gate electrode layer is formed of a second material that is different from the first material. The display apparatus further includes a contact portion disposed on the insulating layer and comprising a first contact layer that is formed of the first material. The display apparatus further includes a pixel electrode that contacts the first contact layer.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: October 27, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Il-Hun Seo, Jong-Hyun Choi, Byung-Soo So, Yong-Duck Son, Jin-Wook Seo
  • Patent number: 9152251
    Abstract: A scan driving circuit includes a shift register configured to sequentially output a first scan signal to scan lines through respective first output lines during a first section of a frame period, a simultaneous switching block configured to simultaneously output a second scan signal to the scan lines through respective second output lines during a second section of the frame period, the first and second periods of the frame period being different from each other, a switching device electrically connected to the second output line, and a repair line across the first output line and the second output line.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: October 6, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Guang-Hai Jin, Jae-Beom Choi, Kwan-Wook Jung, June-Woo Lee, Moo-Jin Kim, Jong-Hyun Choi
  • Publication number: 20150278023
    Abstract: Provided is an apparatus and method for recovering data in an oracle database, in which the data restoring apparatus receives a system file from a database, inquires a system table included in the system file to deduct schema information about at least one table in the system file, sorts a deleted table among the at least one table based on the schema information, searches and deducts a data block including the deleted record by means of an object ID of the sorted table, and identifies and extracts the deleted record from the deducted data block to restore the deleted record.
    Type: Application
    Filed: March 24, 2015
    Publication date: October 1, 2015
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Sang Jin LEE, Jong-Hyun Choi, Kuk Heon Lee, Doo Won Jeong
  • Publication number: 20150214252
    Abstract: A thin film transistor (TFT) array substrate is provided that includes a TFT on a substrate. The TFT can include an active layer, gate electrode, source electrode, drain electrode, first insulating layer between the active layer and the gate electrode, and second insulating layer between the gate electrode and the source and drain electrodes. A pixel electrode is disposed on the first and second insulating layers. A capacitor including a lower electrode is disposed on a same layer as the gate electrode and an upper electrode. A third insulating layer directly between the second insulating layer and the pixel electrode and between the lower electrode and the upper electrode. A fourth insulating layer covers the source electrode, the drain electrode, and the upper electrode, and exposes the pixel electrode and can further expose a pad electrode.
    Type: Application
    Filed: April 2, 2015
    Publication date: July 30, 2015
    Inventors: June-Woo LEE, Jae-Beom CHOI, Kwan-Wook JUNG, Jae-Hwan OH, Seong-Hyun JIN, Kwang-Hae KIM, Jong-Hyun CHOI
  • Publication number: 20150171152
    Abstract: An organic light-emitting display device including a TFT comprising an active layer, a gate electrode comprising a lower gate electrode and an upper gate electrode, and source and drain electrodes insulated from the gate electrode and contacting the active layer; an organic light-emitting device electrically connected to the TFT and comprising a pixel electrode formed in the same layer as where the lower gate electrode is formed; and a pad electrode electrically coupled to the TFT or the organic light emitting device and comprising a first pad electrode formed in the same layer as in which the lower gate electrode is formed, a second pad electrode formed in the same layer as in which the upper gate electrode is formed, and a third pad electrode comprising a transparent conductive oxide, the first, second, and third pad electrodes being sequentially stacked.
    Type: Application
    Filed: February 26, 2015
    Publication date: June 18, 2015
    Inventors: Jong-Hyun Choi, Jae-Hwan Oh
  • Publication number: 20150161931
    Abstract: An organic light-emitting display apparatus for forming a frame by utilizing a plurality of subfields to display gradation. The organic light-emitting display apparatus includes a light-emitting pixel on a display area, a dummy pixel on a dummy area adjacent to the display area, and a repair line coupled to the dummy pixel. The light-emitting pixel is configured to emit light according to a logic level of a data signal applied during each of the subfields, and to adjust an emission time. The repair line is configured to couple the dummy pixel to a light-emitting element when the light-emitting element is separated from the light-emitting pixel, to provide a path to control a light emission of the light-emitting element according to a logic level of a dummy data signal applied to the dummy pixel.
    Type: Application
    Filed: April 22, 2014
    Publication date: June 11, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Hoon Lee, Sung-Jae Moon, Wang-Jo Lee, Jong-Hyun Choi, Yong-Duck Son
  • Publication number: 20150155360
    Abstract: A non-volatile memory device may include a first well of a first conductive type formed over a substrate, a second well of a second conductive type formed over the substrate to contact the first well, a trench formed over the substrate on a border formed by the contact of the first well and the second well, and a memory gate having a memory layer formed over a surface of the trench, and a gate electrode formed to fill the trench over the memory layer.
    Type: Application
    Filed: May 22, 2014
    Publication date: June 4, 2015
    Applicant: SK hynix Inc.
    Inventors: Heon-Joon KIM, Jong-Hyun CHOI