P‐2: 3.5 inch QVGA Low‐Temperature Poly‐Si TFT LCD with Integrated Driver Circuits

Abstract

Abstract Using the low temperature poly‐Si technology, the 3.5‐inch diagonal QVGA320* RGB*240 TFT‐LCD with integrated circuits was developed for handheld applications. We integrated 6 bit digital data driver with ramp‐type digital‐analogue converter and gate driver that can operate bi‐directionally. The characteristics of the poly‐Si TFT used to integrate driver circuits are followings; 1 in NMOS, Vth∼2V and mobility∼200cm 2 /Vsec, 2 in PMOS, Vth ∼ −1.61V and mobility ∼100cm 2 /Vsec.