Active-Matrix LCD With Amorphous Thin-Film Transistors ☆

Thin-film transistors (TFTs), based on hydrogenated amorphous silicon has been the enabling technology for the active matrix liquid crystal display (AMLCD), commonplace in portable and desktop computers, high resolution TVs, tablets and smartphones. However, due to low cost of production, low-temperature processing and high resolution AMLCD technology is gradually shifting towards amorphous In–Ga–Zn–O (a-IGZO) based TFT. Beside higher resolution, one of the advantages of a-IGZO based TFT is that it can use existing manufacturing infrastructure which was developed for amorphous-Si TFT.