Patents by Inventor Sang Hoon Jung

Sang Hoon Jung 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: 10333381
    Abstract: A high voltage start-up circuit includes a power supply terminal configured to supply power, a latch unit connected to the power supply terminal and comprising a first P-type Metal-Oxide-Semiconductor (PMOS) transistor, a first N-type metal-oxide semiconductor (NMOS) transistor connected to the first PMOS transistor, a second PMOS transistor, and a second NMOS transistor connected to the second PMOS transistor, wherein the transistors form a latch structure, a charge sharing unit comprising a first capacitor configured to supply a first voltage to a drain of the second PMOS transistor and a second capacitor configured to supply a second voltage to a drain of the first PMOS transistor, and a switching unit configured to form a current path that charges an external capacitor using a voltage supplied from the power supply terminal as a power voltage, based on the first voltage and the second voltage.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: June 25, 2019
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Zhi Yuan Cui, Sang Hoon Jung, Dong Seong Oh, Byung Ki Kim
  • Publication number: 20190164468
    Abstract: Disclosed is head-mounted display device including a display panel including a display region in which a plurality of pixels defined by a plurality of data lines and a plurality of gate lines are arranged and a non-display region disposed outside the display region, the display panel including the plurality of data lines disposed between the plurality of pixels adjacent in a first direction and the plurality of gate lines disposed between a plurality of pixels adjacent in a second direction; and a data line part to apply, to a group of one or more wirings disposed in the non-display region and connected to each other, the same signal as a signal applied to the plurality of data lines for transmitting data drive signals to the plurality of pixels of the display region.
    Type: Application
    Filed: November 29, 2018
    Publication date: May 30, 2019
    Applicant: LG Display Co., Ltd.
    Inventor: Sang-Hoon JUNG
  • Publication number: 20190130993
    Abstract: A memory device includes a first fail address register that stores a fail address, an input address register that stores an input address, a data comparison circuit that compares write data to be stored in a memory cell corresponding to the input address with read data read from the memory cell, an address comparison circuit that compares the fail address and the input address, and a second fail address register that stores bits of the fail address in parallel based on a first comparison result of the write data with the read data and a second comparison result of the fail address with the input address.
    Type: Application
    Filed: May 29, 2018
    Publication date: May 2, 2019
    Inventors: HYUNGKYU KIM, SANG-HOON JUNG
  • Publication number: 20180059075
    Abstract: Provided is an amine group-derivatized composition including a Boc compound for liquid chromatography-mass spectrometry (LC-MS) analysis, and when the amine group-derivatized composition is used in analysis using reverse-phase LC-MS, it is possible to effectively analyze compounds including an amine group and an amino acid at a low cost in a short time.
    Type: Application
    Filed: August 24, 2017
    Publication date: March 1, 2018
    Inventors: Yongsoo CHOI, Jeongsook SHIN, Cheol-Ho PAN, Sang Min KIM, Jung-Seok YANG, Kyungsu KANG, Sang Hoon JUNG
  • Patent number: 9682113
    Abstract: Disclosed is a method for preventing, improving and/or treating cornea damage or a corneal disease, including administering an effective amount of an extract of a persimmon tree for preventing, improving or treating cornea damage to a subject in need thereof. The extract may be a persimmon leaf extract and the extract is effective in suppressing inflammation of the cornea and protecting corneal cells.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: June 20, 2017
    Assignee: Korea Institute of Science and Technology
    Inventors: Sang Hoon Jung, Kyung A Kim, Suk-Woo Kang, Joo Young Lee, Hong Ryul Ahn, Youngwoo Song
  • Patent number: 9537387
    Abstract: A reference signal generating circuit is provided that generates a reference signal corresponding to an input signal for power factor compensation of a power converter. The reference signal generating circuit includes a detector sampling the input signal according to a reference clock to detect and hold the maximum input signal and a phase measuring unit measuring a phase of the sampled input signal based on the sampled input signal and the detected maximum input signal. The circuit also includes a reference signal generating unit configured to generate a reference signal having a specific value in response to the measured phase.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: January 3, 2017
    Assignee: Magnachip Semiconductor, Ltd.
    Inventors: Zhi Yuan Cui, Younggi Ryu, Inho Hwang, Sang Hoon Jung, Taeyoung Park
  • Publication number: 20160310551
    Abstract: Disclosed is a method for preventing, improving and/or treating cornea damage or a corneal disease, including administering an effective amount of an extract of a persimmon tree for preventing, improving or treating cornea damage to a subject in need thereof. The extract may be a persimmon leaf extract and the extract is effective in suppressing inflammation of the cornea and protecting corneal cells.
    Type: Application
    Filed: April 19, 2016
    Publication date: October 27, 2016
    Applicant: Korea Institute of Science and Technology
    Inventors: Sang Hoon JUNG, Kyung A KIM, Suk-Woo KANG, Joo Young LEE, Hong Ryul AHN, Youngwoo SONG
  • Publication number: 20150061609
    Abstract: A reference signal generating circuit is provided that generates a reference signal corresponding to an input signal for power factor compensation of a power converter. The reference signal generating circuit includes a detector sampling the input signal according to a reference clock to detect and hold the maximum input signal and a phase measuring unit measuring a phase of the sampled input signal based on the sampled input signal and the detected maximum input signal. The circuit also includes a reference signal generating unit configured to generate a reference signal having a specific value in response to the measured phase.
    Type: Application
    Filed: July 23, 2014
    Publication date: March 5, 2015
    Applicant: MagnaChip Semiconductor, Ltd.
    Inventors: Zhi Yuan CUI, Younggi RYU, Inho HWANG, Sang Hoon JUNG, Taeyoung PARK
  • Patent number: 8927995
    Abstract: A thin film transistor includes a semiconductor pattern disposed on a substrate and a semiconductor pattern portion with a conductive or nonconductive characteristic, and a anti-diffusion portion on a side of the semiconductor pattern portion to prevent metal ions from being diffused along the semiconductor pattern portion. A first insulating layer covers the semiconductor pattern and has a first contact hole exposing a first region of the semiconductor pattern portion and a second contact hole exposing a second region of the semiconductor pattern portion. A gate electrode is disposed on the first insulating layer. A second insulating layer covers the gate electrode and has a third contact hole exposing the first region and a fourth contact hole exposing the second region. A source electrode is formed on the second insulating layer and connected to the first region, and a drain electrode is formed on the second insulating layer and connected to the second region.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: January 6, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Hong Koo Lee, Sang Hoon Jung
  • Patent number: 8462087
    Abstract: An organic light emitting diode display device and the driving method thereof that is adaptive for increasing display quality. The organic light emitting diode display device according to an embodiment includes a display panel where pixels having an organic light emitting diode device are arranged in a matrix type and a data driver that supplies a data voltage and an inverted voltage to the pixels, where the inverted voltage is symmetric to the data voltage relative to a reference voltage.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: June 11, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Hong Koo Lee, Sang Hoon Jung
  • Patent number: 8194485
    Abstract: A semiconductor memory device includes at least one sense amplifier, a controller and a sense amplifier driver. The sense amplifier includes a PMOS sense amplifier and an NMOS sense amplifier configured to be respectively activated in response to a first supply voltage and a second supply voltage, and to sense and amplify a voltage difference between a corresponding bit line pair. The controller is configured to set an operating mode in response to an external command, to control activation timing of a PMOS drive activation signal and an NMOS drive activation signal according to the set operating mode, and to output the PMOS drive activation signal and the NMOS drive activation signal. The sense amplifier driver is configured to apply the first and second supply voltages to the PMOS and NMOS sense amplifiers, respectively, in response to the PMOS drive activation signal and the NMOS drive activation signal.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: June 5, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Hoon Jung, Jae-Youn Youn, Young-Sun Min
  • Patent number: 7859491
    Abstract: The pixel circuit of an organic light emitting display includes a first transistor to a seventh transistor, a first capacitor, a second transistor and an organic light emitting diode. The first capacitor stores the data signal from the first, second and third transistors, and the second capacitor stores the threshold voltage of the fourth transistor from the fifth transistor. Voltages stored in the first and second capacitors are combined by the sixth transistor, and the fourth transistor generates a driving current corresponding to a combined voltage of the voltages stored in the first and second capacitor. The seventh transistor transmits the driving current and the organic light emitting diode emits light corresponding to the driving current.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: December 28, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Hong Koo Lee, Sang Hoon Jung
  • Patent number: 7839364
    Abstract: A pixel circuit of an organic light emitting display includes a first transistor that transmits a data signal from a data line in response to a scan signal from a scan line; a first capacitor that stores the data signal received from the first transistor; a second transistor for threshold voltage compensation; a third transistor that transmits the threshold voltage of the second transistor; a fourth transistor that connects the gate and drain of the second transistor in a diode-connected configuration in response to a control signal from a control line; a second capacitor that stores the threshold voltage received through the third transistor; a fifth transistor that generates a driving current corresponding to a combined voltage of the first and the second capacitors due to the turned on third transistor; and an organic light emitting diode that emits light according to the driving current.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: November 23, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Tae Joon Ahn, Sang Hoon Jung
  • Patent number: 7812796
    Abstract: A pixel circuit includes a first transistor transmitting a reference signal or a data signal in response to a selection signal applied through a scan line, second and third transistors inputting a reference current in response to a control signal applied through a control line, a first capacitor storing a voltage compensated by the input reference current to compensate for the data signal received from the first transistor, a second capacitor storing the compensated data signal by the first capacitor, a fourth transistor receiving the compensated data signal to generate a driving current, a fifth transistor transmitting the driving current in response to the control signal applied through the control line, and an organic light emitting diode receiving the driving current from the fifth transistor to emit light.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: October 12, 2010
    Assignee: LG. Display Co., Ltd.
    Inventor: Sang Hoon Jung
  • Publication number: 20100067317
    Abstract: A semiconductor memory device includes at least one sense amplifier, a controller and a sense amplifier driver. The sense amplifier includes a PMOS sense amplifier and an NMOS sense amplifier configured to be respectively activated in response to a first supply voltage and a second supply voltage, and to sense and amplify a voltage difference between a corresponding bit line pair. The controller is configured to set an operating mode in response to an external command, to control activation timing of a PMOS drive activation signal and an NMOS drive activation signal according to the set operating mode, and to output the PMOS drive activation signal and the NMOS drive activation signal. The sense amplifier driver is configured to apply the first and second supply voltages to the PMOS and NMOS sense amplifiers, respectively, in response to the PMOS drive activation signal and the NMOS drive activation signal.
    Type: Application
    Filed: September 2, 2009
    Publication date: March 18, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sang-Hoon Jung, Jae-Youn Youn, Young-Sun Min
  • Patent number: 7663579
    Abstract: An electroluminescence display device includes a first switching device for transferring a data current, which represents a data signal, using a first scan signal, a second switching device for transferring the data current from the first switching device using a second scan signal, a storage device for storing a charge voltage according to the data current transferred from the second switching device, a coupling unit for changing the charge voltage stored in the storage device in accordance with the first scan signal into a changed voltage, driving devices for generating a driving current in accordance with the changed voltage, and an organic light emitting diode for emitting light in accordance with the driving current.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: February 16, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Sang-Hoon Jung, Sung-Ki Kim
  • Publication number: 20080122381
    Abstract: A pixel circuit includes a first transistor transmitting a reference signal or a data signal in response to a selection signal applied through a scan line, second and third transistors inputting a reference current in response to a control signal applied through a control line, a first capacitor storing a voltage compensated by the input reference current to compensate for the data signal received from the first transistor, a second capacitor storing the compensated data signal by the first capacitor, a fourth transistor receiving the compensated data signal to generate a driving current, a fifth transistor transmitting the driving current in response to the control signal applied through the control line, and an organic light emitting diode receiving the driving current from the fifth transistor to emit light.
    Type: Application
    Filed: June 26, 2007
    Publication date: May 29, 2008
    Inventor: Sang Hoon Jung
  • Publication number: 20080100609
    Abstract: An organic light emitting diode display device and the driving method thereof that is adaptive for increasing display quality. The organic light emitting diode display device according to an embodiment includes a display panel where pixels having an organic light emitting diode device are arranged in a matrix type and a data driver that supplies a data voltage and an inverted voltage to the pixels, where the inverted voltage is symmetric to the data voltage relative to a reference voltage.
    Type: Application
    Filed: July 24, 2007
    Publication date: May 1, 2008
    Inventors: Hong Koo Lee, Sang Hoon Jung
  • Publication number: 20070268217
    Abstract: A pixel circuit of an organic light emitting display includes a first transistor that transmits a data signal from a data line in response to a scan signal from a scan line; a first capacitor that stores the data signal received from the first transistor; a second transistor for threshold voltage compensation; a third transistor that transmits the threshold voltage of the second transistor; a fourth transistor that connects the gate and drain of the second transistor in a diode-connected configuration in response to a control signal from a control line; a second capacitor that stores the threshold voltage received through the third transistor; a fifth transistor that generates a driving current corresponding to a combined voltage of the first and the second capacitors due to the turned on third transistor; and an organic light emitting diode that emits light according to the driving current.
    Type: Application
    Filed: December 14, 2006
    Publication date: November 22, 2007
    Inventors: Tae Joon Ahn, Sang Hoon Jung
  • Publication number: 20070268220
    Abstract: The pixel circuit of an organic light emitting display includes a first transistor to a seventh transistor, a first capacitor, a second transistor and an organic light emitting diode. The first capacitor stores the data signal from the first, second and third transistors, and the second capacitor stores the threshold voltage of the fourth transistor from the fifth transistor. Voltages stored in the first and second capacitors are combined by the sixth transistor, and the fourth transistor generates a driving current corresponding to a combined voltage of the voltages stored in the first and second capacitor. The seventh transistor transmits the driving current and the organic light emitting diode emits light corresponding to the driving current.
    Type: Application
    Filed: May 17, 2007
    Publication date: November 22, 2007
    Inventors: Hong Koo Lee, Sang Hoon Jung