Photo-alignment and n-FFS LCD Technologies with IGZO-TFTApplied to Generation Eight Factory

Abstract

We achieved a super low power consuming LCD panel with an n-FFS mode driven by IGZO-TFTs at low frequency. In this paper, we report the development of a new photo-alignment process for n-FFS, which prevents light-leakage and mura caused by conventional rubbing processes. In addition, we also developed high reliable liquid crystal and photo-alignment materials, which reduce flicker in low refresh rate driving. These technologies have already been applied to the Generation Eight factory, and are being adopted to small/middle sized LCDs for smartphones, tablet PCs, notebook PCs and so on.