Thin film transistor, and organic EL display of the same and method for fabricating the same, including a high temperature substrate of metal or ceramic, a semiconductor layer formed in a region of the substrate having a source region and a drain region, a source electrode in contact with the source region in the semiconductor layer for use as a data line, a pixel electrode formed in each of the pixel region in contact with the drain region in the semiconductor layer, an organic EL layer formed on the pixel electrode, a common electrode formed on the organic EL layer, and a transparent protection film on the common electrode.