A dual-gate + Z-inversion (DZi) driving method was proposed to reduce power consumption of thin-film transistor liquid crystal display (TFT-LCD). The power saving principle of DZi driving was researched

and the structure design and circuit design were finished

and 14.0-inch WXGA (1366RGBx768) samples were manufactured

and the power saving effect was measured and analyzed. As results

DZi can save TFT-LCD power consumption in effect

such as panel AVDDS power reduces 70% (191mW) when display color-bar pattern. Moiré phenomenon that appeared in DZi module was analyzed

and solutions were proposed. The research established a driving method and design reference for lower power consumption in TFT-LCDs and other displays.