Patents by Inventor Yong Chung

Yong Chung 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: 20140354711
    Abstract: An organic light emitting display device includes pixels, a scan driver, a memory configured to store pixel data containing information indicative of threshold voltages and mobilities of first transistors in the pixels, a timing controller configured to modify one or more bits of first data to generate second data, the first data modified in response to the pixel data, a data driver configured to generate data signals based on the second data, and a control driver configured to supply a first control signal to a first control line commonly coupled to the pixels and a second control signal to a second control line, wherein each of the pixels is configured to store a data signal of a current frame and to emit light corresponding to a data signal of a previous frame.
    Type: Application
    Filed: March 14, 2014
    Publication date: December 4, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hai-Jung IN, Jung-Bae KIM, Bo-Yong CHUNG
  • Publication number: 20140353608
    Abstract: There is provided a pixel, including an organic light emitting diode (OLED), a first transistor whose gate electrode is coupled to a first node, whose first electrode is coupled to a first power supply via a third node, and whose second electrode is coupled to an anode electrode of the OLED, a second transistor coupled between a data line and a second node and turned on when a scan signal is supplied to a scan line, a first capacitor coupled between the second node and a first voltage source, a third transistor coupled between the second node and the first node and turned on when a second control signal is supplied, and a fourth transistor coupled between the first node and the first power supply and turned on when a first control signal is supplied.
    Type: Application
    Filed: October 23, 2013
    Publication date: December 4, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: YONG-JAE KIM, HAE-YEON LEE, BO-YONG CHUNG, JIN-GON OH
  • Publication number: 20140353605
    Abstract: A thin film transistor includes a substrate, a semiconductor layer on the substrate, a first insulating layer covering the substrate and the semiconductor layer, a first gate electrode on the first insulating layer and overlapping the semiconductor layer, a second insulating layer covering the first gate electrode and the first insulating layer, a second gate electrode on the second insulating layer and overlapping the semiconductor layer and the first gate electrode, a third insulating layer covering the second gate electrode, a first contact hole defined in the first insulating layer, the second insulating layer and the third insulating layer, and through which a portion of the semiconductor layer is exposed, and a source electrode and a drain electrode connected to the semiconductor layer through the first contact hole.
    Type: Application
    Filed: October 16, 2013
    Publication date: December 4, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jung-Bae KIM, Bo-Yong CHUNG, Hai-Jung IN, Dong-Gyu KIM
  • Patent number: 8902208
    Abstract: An organic light emitting display device includes a scan driver, a data driver, and pixels. The scan driver is for sequentially supplying, during each horizontal period of a width 1H, a scan signal with a width of at least 2H to scan lines. The scan driver is further for sequentially supplying an emission control signal to emission control lines that are substantially parallel to the scan lines. The data driver supplies data signals to data lines. Each pixel includes an organic light emitting diode (OLED), a pixel circuit having a first transistor for controlling the amount of current supplied to the OLED, and a compensator for controlling the voltage of a gate electrode of the first transistor for compensating a degradation of the OLED. The compensator includes two transistors and a capacitor. One transistor is coupled to a scan line, and the other is coupled to an emission control line.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: December 2, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo-Yong Chung, Yong-Sung Park
  • Publication number: 20140350062
    Abstract: Provided is a pharmaceutical composition for inhibiting apoptosis of neurons or neurodegeneration. The pharmaceutical composition effectively prevents or treats diseases related to apoptosis of neurons or neurodegeneration.
    Type: Application
    Filed: July 22, 2014
    Publication date: November 27, 2014
    Inventors: Cheol Hyoung PARK, Hye Kyung MIN, In Suk PARK, Mi Jung LIM, Ji Won LEE, Jin Yong CHUNG, Yeo Jin YOON, Joo Young PARK
  • Publication number: 20140333512
    Abstract: A pixel circuit for an organic light emitting diode (OLED) display is disclosed. One inventive aspect includes an organic light emitting diode, a first transistor, a storage unit, a second transistor and a third transistor. The first transistor controls the amount of current flowing from a first power source coupled to a second power source via a second node and the organic light emitting diode in response to a voltage at a first node. The storage unit is connected to a data line, and stores a data signal from the data line. The second transistor is connected to a fourth node and the first node and is turned on when a second control signal is supplied. The third transistor is connected to the first node and a third node and is turned on when a third control signal is supplied.
    Type: Application
    Filed: September 26, 2013
    Publication date: November 13, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hai-Jung In, Jung-Bae Kim, Bo-Yong Chung
  • Publication number: 20140333600
    Abstract: A pixel circuit for an organic light emitting diode (OLED) display is disclosed. One inventive aspect includes an organic light emitting diode, a first transistor, a second transistor, a first capacitor connected to a second node and a fixed voltage source, a third transistor, a fourth transistor, a second capacitor connected to the fourth transistor and a third node, a first control transistor and a second control transistor. The fourth transistor is connected to the first and third nodes and is turned off when an emission control signal is supplied to an emission control line and turned on otherwise. The first control transistor is connected to the third node and the first power source and is turned on when a first control signal is supplied.
    Type: Application
    Filed: September 27, 2013
    Publication date: November 13, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hae-Yeon Lee, BO-YONG CHUNG, YONG-JAE KIM, JUNG-BAE KIM
  • Patent number: 8885418
    Abstract: Methods for preventing corruption of lower page data due to a write abort occurring during programming of upper page data by applying an adaptive double pulse programming scheme to non-volatile storage elements are described. In some embodiments, the programming of a first set of non-volatile storage elements to one or more lower-level programming states associated with upper page data (e.g., an A state) may be delayed until a second set of non-volatile storage elements intended to be programmed to one or more upper-level programming states associated with the upper page data (e.g., B or C states) reaches a trigger voltage. Once the trigger voltage has been reached or an appropriate programming delay has passed, then both the first set of non-volatile storage elements and the second set of non-volatile storage elements may be programmed during a common programming phase using double programming pulses.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: November 11, 2014
    Assignee: Sandisk Technologies, Inc.
    Inventors: Sung-Yong Chung, Uday Chandrasekhar, Jianmin Huang, Masaaki Higashitani
  • Patent number: 8878751
    Abstract: An organic light emitting display includes: pixels located at crossing regions between scan lines and data lines; a first control line and a second control line commonly coupled to the pixels; a control line driver configured to supply a first control signal to the first control line for a reset period and to supply a second control signal to the second control line during the reset period and a compensation period. Each pixel includes: an organic light emitting diode; a first transistor configured to control an amount of current supplied from a first power source coupled to a first electrode to a second power source via the organic light emitting diode; a second transistor configured to be turned on when the second control signal is supplied; and a fourth transistor configured to supply an initial voltage to a second electrode of the first transistor when the first control signal is supplied.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: November 4, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo-Yong Chung, Yong-Sung Park
  • Patent number: 8866859
    Abstract: A scan driver may include: a first scan driving block, outputting a second clock signal to a first output terminal according to an input signal, in synchronization with a first clock signal; and a second scan driving block, outputting the first clock signal according to the output signal of the first scan driving block to a second output terminal, in synchronization with the second clock signal, wherein the first scan driving block and the second scan driving block simultaneously output an entire clock signal, according to a level of a simultaneous light emission control signal.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: October 21, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo-Yong Chung, Dong-Beom Lee
  • Publication number: 20140301938
    Abstract: Provided is a method of separating carbon and oxygen isotopes by using a laser. In one preferred embodiment, the method includes performing a photolysis process on formaldehyde including a carbon or oxygen isotope by irradiation with ultraviolet light having a wavelength ranging from 340 nm to 360 nm to generate carbon monoxide having a carbon or oxygen isotope enriched therein and hydrogen, performing a catalytic reaction on the carbon monoxide having a carbon or oxygen isotope enriched therein and the hydrogen to synthesize carbon dioxide (CO2) and water (H2O) having a carbon or oxygen isotope enriched therein, and cooling the H2O to recover CO2 having a carbon isotope enriched therein or H2O having an oxygen isotope enriched therein.
    Type: Application
    Filed: July 19, 2012
    Publication date: October 9, 2014
    Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Do-Young Jeong, Hyoun-Min Park, Yong-Ho Cha, Dong-Yong Chung
  • Patent number: 8854347
    Abstract: An organic light emitting display device for improving the yield and for reducing or minimizing manufacturing costs. The organic light emitting display device includes: a data driver coupled to data lines that are formed on the panel; a scan driver mounted on the panel and coupled to scan lines that are formed on the panel; input lines for receiving clock signals from the outside; first connecting lines overlapped with a cathode electrode and electrically coupled to the input lines and for supplying the clock signals to the scan driver; second connecting lines electrically coupled to the input lines; and third connecting lines for electrically coupling the first connecting lines to the second connecting lines.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: October 7, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Sung Park, Chul-Kyu Kang, Dong-Wook Park, Bo-Yong Chung
  • Patent number: 8854353
    Abstract: A scan driver and a display device including the same. The scan driver includes a plurality of shift registers including an input signal terminal into which an initial signal or an output signal of a previous stage is inputted, two clock signal terminals to which 2 phase clock signals are transferred, two control signal terminals to which a first control signal and a second control signal controlling a driving mode of simultaneously driving or sequentially driving output signals of all stages are transferred, and output signals terminals from which the output signals are outputted, wherein in the sequential driving mode, the first control signal and the second control signal are transferred as a predetermined first level voltage and in the simultaneous driving mode, the first control signal and the second control signal are transferred alternately as the first level voltage and a predetermined second level voltage.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: October 7, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: Bo-Yong Chung
  • Patent number: 8841335
    Abstract: Provided is a pharmaceutical composition for inhibiting apoptosis of neurons or neurodegeneration. The pharmaceutical composition effectively prevents or treats diseases related to apoptosis of neurons or neurodegeneration.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: September 23, 2014
    Assignee: SK Biopharmaceuticals Co., Ltd.
    Inventors: Cheol Hyoung Park, Hye Kyung Min, In Suk Park, Mi Jung Lim, Ji Won Lee, Jin Yong Chung, Yeo Jin Yoon, Joo Young Park
  • Patent number: 8828992
    Abstract: Provided are a substituted azole derivative and pharmaceutically acceptable salts thereof, a pharmaceutical composition including an effective amount of the derivative, and a method for treating Parkinson's disease in a mammal including administering an effective amount of the compound to the mammal. The azole derivative of the following Formula (I) and pharmaceutically useful salts thereof have an efficacy against Parkinson's disease from inhibitory effects of the activity of MAO-B.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: September 9, 2014
    Assignee: SK Biopharmaceuticals Co., Ltd.
    Inventors: Cheol-Hyoung Park, Hye-Kyung Min, Mi-Jung Lim, Ji-Won Lee, Jin-Yong Chung, Choon-Ho Ryu, Yeo-Jin Yoon, Mi-Kyung Ji, Joo-Young Park
  • Patent number: 8823613
    Abstract: A pixel circuit for an organic light emitting display includes: a fourth NMOS transistor including a gate electrode coupled to a first scan line, and a first electrode coupled to a first node; a storage capacitor coupled between the first node and a second node; a third NMOS transistor including a gate electrode coupled to a second scan line, and a first electrode coupled to a data line; a second NMOS transistor including a first electrode coupled to a second electrode of the third NMOS transistor, and a gate electrode and a second electrode coupled to the first node; a fifth NMOS transistor including a gate electrode coupled to an emission control line, and a first electrode coupled to a first power source; an organic light emitting diode (OLED) comprising an anode coupled to the second node; and a first NMOS transistor for providing a driving current to the OLED.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: September 2, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo-Yong Chung, Keum-Nam Kim
  • Patent number: 8823628
    Abstract: A scan driving circuit that generates a plurality of scan signals overlapping with each other by h horizontal cycles, that is driven by using (2h+2) clock signals, and that includes a small number of transistors, where h denotes a natural number less than or equal to n?1 and n is an integer greater than “4.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: September 2, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: Bo-Yong Chung
  • Patent number: 8817008
    Abstract: A pixel of a display with reduced leakage current is disclosed. The pixel includes: an organic light emitting diode; a first transistor for controlling an amount of current flowing from a first power source to a second power source via the organic light emitting diode; a storage capacitor coupled between the first power source and a gate electrode of the first transistor; a plurality of third transistors coupled between the gate electrode and a second electrode of the first transistor; and a plurality of fourth transistors coupled between the gate electrode of the first transistor and an initialization power source. The third and fourth transistors are configured to reduce a leakage current from the storage capacitor to improve the image quality of the display.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: August 26, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Sung Park, Bo-Yong Chung, Deok-Young Choi
  • Patent number: 8810552
    Abstract: A scan driver includes scan driving blocks, each including: a first transistor including a gate coupled to a first node and receiving a first clock signal, a first electrode receiving an output control signal, and a second electrode coupled to a scan line at first output; a second transistor including a gate coupled to a second node receiving an input signal according to a second clock signal, and first and second electrodes respectively coupled to a third clock input and the first output; a third transistor including a gate coupled to the first node, a first electrode receiving the output control signal, and a second electrode coupled to an input terminal of a next scan driving block at a second output; and a fourth transistor including a gate coupled to the second node, and first and second electrodes respectively coupled to the third clock input and the second output.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: August 19, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo-Yong Chung, Yong-Sung Park, Deok-Young Choi
  • Patent number: 8797314
    Abstract: An organic electro-luminescent display apparatus can compensate for the threshold voltage and voltage drop of the driving transistor. The organic electro-luminescent display apparatus divides and drives an initialization time, thereby improving a contrast ratio. The organic electro-luminescent display apparatus minimizes or reduces the change of a current due to a leakage current by correcting the leakage current corresponding to a data voltage with a fixed power source, thereby improving crosstalk. The organic electro-luminescent display apparatus adjusts the duty of the emission control signal, thereby removing or reducing motion blur.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: August 5, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo-Yong Chung, Yong-Sung Park, Deok-Young Choi