Patents Examined by Bupin Shalwala
  • Low-power column driving method for liquid crystal display
    Patent number: 6650310
    Abstract: A hybrid-level charge recycling method for use in implementing low power LCD column drivers. By having external capacitors of the column driver drive the same column lines of the LCD, the need for a polarity reversing circuit is eliminated, and the time necessary for charge recycling, as well as the amount of power consumed, is reduced. As a result, the multi-level recycling operation in column driving IC is made more practical.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: November 18, 2003
    Assignee: Hynix Semiconductor Inc.
    Inventor: Kwang-Ho Yoon