Abstract
Laser re-crystallization is being actively investigated to fabricate low temperature, polycrystalline silicon, thin-film transistors (TFTs) onto glass substrate for use in active-matrix liquid crystal displays (LCDs). Some attractive applications of TFTs are peripheral circuits and various sensors on the same glass substrate, which make highly functional active matrix displays. In this paper, an analog driver with operational amplifiers capable of canceling the offset voltage and a low-power consumption TFT-LCD with dynamic memory cells embedded in each pixel, are reviewed. Also an optical sensor array for digitizers and a capacitive fingerprint sensor are demonstrated. To realize a “system on panel” and “smart pixels”, it is necessary to fabricate the TFTs with higher mobility and higher uniformity in their characteristics.
