Patents by Inventor Hyungjung Lee

Hyungjung Lee 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: 8416157
    Abstract: A driving circuit including a plurality of light emitting control drivers includes an input terminal coupled to an initial driving line or a light emitting negative control line of a previous light emitting control driver, a first clock terminal and a second clock terminal that are electrically coupled to a first clock line and a first negative clock line that are phase-inverted, or a second clock line and a second negative clock line, respectively, and an output terminal and a negative output terminal adapted to generate an output signal and a negative output signal when receiving an input signal, a clock signal and a negative clock signal via the input terminal, the first clock terminal and the second clock terminal, respectively.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: April 9, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyungjung Lee, Kyunghoon Chung
  • Patent number: 7893894
    Abstract: An organic light emitting display and a driving circuit therefor to prevent a variation in scanning signals supplied to scan lines due to coupling capacitance caused by scan lines and data lines that intersect each other and to prevent a variation in the scanning signals due to a leakage current from an output terminal. The display and driving circuit include first, second, and third scan drivers each electrically coupled to each of first, second and third clock lines to control output signals to scan lines. The display and driving circuit may include multiple scan drivers and multiple clock lines, which correspond to a total number of scan lines.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: February 22, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Hyungjung Lee, Kyunghoon Chung
  • Publication number: 20080211745
    Abstract: A driving circuit including a plurality of light emitting control drivers includes an input terminal coupled to an initial driving line or a light emitting negative control line of a previous light emitting control driver, a first clock terminal and a second clock terminal that are electrically coupled to a first clock line and a first negative clock line that are phase-inverted, or a second clock line and a second negative clock line, respectively, and an output terminal and a negative output terminal adapted to generate an output signal and a negative output signal when receiving an input signal, a clock signal and a negative clock signal via the input terminal, the first clock terminal and the second clock terminal, respectively.
    Type: Application
    Filed: December 14, 2007
    Publication date: September 4, 2008
    Inventors: Hyungjung Lee, Kyunghoon Chung
  • Publication number: 20080211797
    Abstract: An organic light emitting display and a driving circuit therefor to prevent a variation in scanning signals supplied to scan lines due to coupling capacitance caused by scan lines and data lines that intersect each other and to prevent a variation in the scanning signals due to a leakage current from an output terminal. The display and driving circuit include first, second, and third scan drivers each electrically coupled to each of first, second and third clock lines to control output signals to scan lines. The display and driving circuit may include multiple scan drivers and multiple clock lines, which correspond to a total number of scan lines.
    Type: Application
    Filed: September 19, 2007
    Publication date: September 4, 2008
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Hyungjung LEE, Kyunghoon Chung