THIN FILM TRANSISTOR ARRAY PANEL AND METHOD FOR MANUFACTURING THE SAME

摘要

PURPOSE: A thin film transistor display panel and a manufacturing method thereof are provided to improve a display property of a liquid crystal display panel by forming a diffusion preventing layer including nitrogen in the lower side of a copper alloy layer. CONSTITUTION: A semiconductor layer is formed on a gate insulation layer and is overlapped with a gate electrode. A first resistive contact unit(161,165) is positioned on the upper side of the semiconductor layer. A diffusion preventing layer(643,645) is formed on the resistive contact unit and includes nitrogen and the same material as the resistive contact unit. A second resistive contact unit is positioned on the upper side of the diffusion preventing unit. A protection layer(180) is formed on the upper side of a data pattern. A pixel electrode is formed on the upper side of the protection layer and is electrically connected to a drain electrode.