A multi-phase charge-sharing technique without external capacitor for low-power TFT-LCD column drivers

نویسندگان

  • Shao-Sheng Yang
  • Pao-Lin Guo
  • Tsin-Yuan Chang
  • Jin-Hua Hong
چکیده

Up to 75% power saving efficiency theoretically with infinite phases, a novel multi-phase charge-recycling technique that doesn't require any, external capacitor for charge conservation is proposed for the dot inversion method to reduce AC power consumption of the.TFT-LCD column driver and is easy to be implemented with simple circuitry. Compared with original circuit (without any low-power scheme) and previous low-power charge-recycling work, the proposed method with each group of 8 data lines decreases the power consumption about 23%-68% and 110%-18%, respectively.

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تاریخ انتشار 2003