Patents by Inventor Sung Dae YEO

Sung Dae YEO 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).

  • DIFFERENTIAL AMPLIFIER AND A DATA DRIVING DEVICE
    Publication number: 20240146263
    Abstract: A differential amplifier according to an embodiment can be provided in a data driving device for driving pixels of a display panel. The differential amplifier can improve the slew rate of the differential amplifier by supplying dynamic current to an input circuit stage and/or a current mirror circuit stage of the differential amplifier through a boosting circuit stage.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 2, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventors: Sang Duk YU, Ho Jong PARK, Tae Jun AHN, Sung Dae YEO
  • LOW DROPOUT REGULATOR
    Publication number: 20240126317
    Abstract: A low dropout regulator can comprise a driver configured to receive a first input voltage and generates an output voltage, an error amplifier configured to receive a second input voltage having a magnitude different from the first input voltage and output an amplifier output voltage based on the difference between a feedback voltage corresponding to the output voltage and a reference voltage, and a driving controller configured to control the output voltage of the driver based on the amplifier output voltage.
    Type: Application
    Filed: October 17, 2023
    Publication date: April 18, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventors: Sung Dae YEO, Tae Jun AHN
  • DISPLAY DRIVING DEVICE AND METHOD FOR DETERMINING ERROR OF SOURCE AMPLIFIER IN DISPLAY DRIVING DEVICE
    Publication number: 20240038144
    Abstract: An aspect relates to a display driving device and a method for determining an error of a source amplifier in a display driving device, and determines whether an output buffer (e.g., a source amplifier) provided at an output stage of a display driving device providing data voltage to each pixel (e.g., subpixel) of a display panel has an error to prevent a phenomenon in which a screen is not normally displayed.
    Type: Application
    Filed: March 31, 2023
    Publication date: February 1, 2024
    Applicant: LX Semicon Co., Ltd.
    Inventor: Sung Dae YEO