Liquid display panel driving method

摘要

A liquid display panel driving method to drive a plurality of pixels of a liquid display panel in a frame period comprising a plurality of data input intervals is provided. Each pixel comprises first and second capacitors coupled to a first and second common electrode respectively. The liquid display panel driving method comprises the steps of: keeping the second common electrode at the same voltage level; modifying the voltage of the first common electrode of each pixel along a row of scan line to perform a first pre-charge before the data input interval; turning on the pixels to make each pixel receive the data voltage from the data lines during the data input interval; and turning off the pixels and modifying the voltage of the first common electrode to further set the voltage of each of the pixels to a target level after the data input interval.

主权项

1. A liquid display panel driving method to drive a plurality of pixels of a liquid display panel in a frame period, wherein each of the plurality of pixels are placed at the intersections of a plurality columns of data lines and a plurality rows of scan lines, the frame period comprises a plurality of data input intervals each corresponding to a scan line, each pixel further comprises first and second capacitors coupled to a first and second common electrode respectively, the first common electrodes of each row of pixels are independent, and the second common electrode of each pixel receives the same voltage, the liquid display panel driving method comprises the steps of:
keeping the second common electrodes at the same voltage level; modifying the voltage of the first common electrode of each pixel along a row of scan line to perform a first pre-charge before the data input interval corresponding to the row of the scan line; turning on the pixels on the scan line to make each pixel receive the data voltage from the corresponding data lines during the data input interval; and turning off the pixels on the scan line and modifying the voltage of the first common electrode of each pixel to further set the voltage of each of the pixels to a target level after the data input interval, wherein the voltage of the first common electrode being elevated at least two times or decreased at least two times corresponding to each of the data input intervals, and the scan line being enabled once during each of the data input intervals; wherein when the target level of a frame period is a positive level, the voltage modification of the first common electrode after the data input interval and before the next data input interval of the scan line substantially comprises two modifying steps to set the voltage of each of the pixels to the target level.