Patent ID: 7612752
Filing Date: 2009-11-03
Classification: G09G

Abstract:
1. A pixel driving method applied to a flat panel display, the flat panel display having a plurality of pixels, a plurality of scan lines, a plurality of data lines, each pixel having a first sub-pixel and a second sub-pixel, each first sub-pixel having a first pixel electrode, a first switch and a thin film transistor (TFT), each second sub-pixel having a second pixel electrode and a second switch, the first switch of each pixel connected to the first pixel electrode and the corresponding data line, the TFT of each pixel connected to the corresponding scan line, the next scan line and the first switch, the second switch of each pixel connected the second pixel electrode, the corresponding scan line and the corresponding data line, the pixel driving method comprising: in a first time period, providing a first scan voltage to a pixel row among the pixels by the corresponding scan line to conduct the corresponding TFTs, and providing a second scan voltage through the conducted TFTs to the corresponding first switches by the next scan line to conduct the first switches, and then transmitting a plurality of first data voltages to the corresponding first pixel electrodes by the corresponding data lines, wherein the absolute value of the difference between the first scan voltage and the second scan voltage is not smaller than a threshold voltage of the TFTs, and in a second time period, providing a third scan voltage to the pixel row by the corresponding scan line to conduct the corresponding TFTs and the corresponding second switches, and providing a fourth scan voltage through the conducted TFTs to the corresponding first switches by the next scan line to turn off the first switches, at the same time, outputting a plurality of second data voltages of the corresponding data lines via the conducted second switches to the corresponding second pixel electrodes.