Patents by Inventor Jao-goo Lee

Jao-goo 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).

  • Source driver capable of removing offset in display device and method for driving source lines of display device
    Patent number: 8102355
    Abstract: A source driver and a source line driving method capable of removing the offset effect of an amplifier for every two frames. The source driver includes an amplification unit, an input controller and an output controller. The amplification unit includes a positive amplifier outputting an output voltage having a positive deviation relative to an input voltage applied thereto and a negative amplifier outputting an output voltage having a negative deviation relative to an input voltage applied thereto. The input controller transfers a first gray-level voltage corresponding to a driving voltage of a first source line and a second gray-level voltage corresponding to a driving voltage of a second source line adjacent to the first source line to the amplification unit in response to input positive control signals or input negative control signals.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: January 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-hyuck Woo, Jao-goo Lee
  • SOURCE DRIVER CAPABLE OF REMOVING OFFSET IN DISPLAY DEVICE AND METHOD FOR DRIVING SOURCE LINES OF DISPLAY DEVICE
    Publication number: 20070126688
    Abstract: A source driver and a source line driving method capable of removing the offset effect of an amplifier for every two frames. The source driver includes an amplification unit, an input controller and an output controller. The amplification unit includes a positive amplifier outputting an output voltage having a positive deviation relative to an input voltage applied thereto and a negative amplifier outputting an output voltage having a negative deviation relative to an input voltage applied thereto. The input controller transfers a first gray-level voltage corresponding to a driving voltage of a first source line and a second gray-level voltage corresponding to a driving voltage of a second source line adjacent to the first source line to the amplification unit in response to input positive control signals or input negative control signals.
    Type: Application
    Filed: November 15, 2006
    Publication date: June 7, 2007
    Inventors: Jae-hyuck Woo, Jao-goo Lee