The Charging Difference Minimization of the Physically Divided A-Si TFT LCD Panel for Dual Scanning

摘要

In this paper, we describe a driving method to overcome the charging difference at the physically divided TFT- LCD panels. The charging difference causes a line at the center of the panels. To reduce the above effect, the upper half of the TFT-LCD panel is driven sequentially from the middle horizontal line to the first line and the bottom half is driven from the middle horizontal line to the last line. Furthermore we implement a horizontal line skew driving method between upper and lower panel driving, which removes the abnormal charging at the middle horizontal line caused by parasitic capacitance effects. By using the above two methods simultaneously, one can acquire good quality pictures on a 28.0 inch (2048×2048) panels.