THIN FILM TRANSISTOR MATRIX AND ITS MANUFACTURING METHOD

A thin film transistor matrix including: a plurality of thin film transistors disposed in a matrix shape on a transparent insulating substrate, each thin film transistor having a gate electrode, a source electrode and a drain electrode; a pixel electrode formed on the transparent insulating substrate and connected to the source electrode of each of the plurality of thin film transistors; a plurality of gate bus lines connected to the gate electrode, disposed as a whole along a row direction on the transparent insulating substrate, and including a first lamination of a first metal layer and an underlying first semiconductor layer; and a plurality of drain bus lines connected to the drain electrode, disposed as a whole along a column direction on the transparent insulating substrate, and including a second lamination of a second metal layer and an underlying second semiconductor layer.