An Advanced Capacitively Coupled Driving Method for Large Scale and High Resolu-tion TFT-LCDs

Abstract

An advanced capacitively coupled driving method, which can produce a cross talk suppressed image and has a low voltage operation, is described This new driving method utilizes the capacitively coupled voltage which is supplied to the pixel electrode through the storage capacitor formed between the preceding or next gate line and the pixel From a TFT array circuit simulation of the dynamic behavior of a pixel voltage and also from the experimental results of the optical characteristics of TFT-LCDs, driven by this new driving method, it was found that this new driving method is effective in suppressing the cross talk for large scale and high resolution TFT-LCDs This driving method was used to demonstrate a highly uniform and a cross talk free image with low data voltage driving in the 152 in diagonal IPS mode TFT-LCD with a wide aspect ratio