Disclosed is display part such as a TFT array panel comprising an aluminum layer, and a molybdenum layer formed on the aluminum layer. The thickness of the molybdenum layer may be about 10% to about 40% the thickness of the aluminum layer. As a result, a top surface of the aluminum layer may have a width about equal to a bottom surface of the molybdenum layer.Accordingly, it is an aspect of the present invention to provide a TFT array panel comprising an aluminum wiring on which aluminum protrusion is reduced or eliminated.