THIN FILM TRANSISTOR AND MANUFACTURING METHOD THEREOF, ARRAY SUBSTRATE AND MANUFACTURING METHOD THEREOF, AND DISPLAY DEVICE

摘要

A thin film transistor and manufacturing method thereof, array substrate and manufacturing method thereof, and display device; the array substrate comprises a base substrate (1) and an electrode (2) located on the base substrate (1). The electrode (2) comprises an aluminum layer or an aluminum alloy layer (11) located on the base substrate (1), and a first barrier layer (12) located on the aluminum layer or the aluminum alloy layer (11) for preventing the forming of bumps on the aluminum layer or the aluminum alloy layer (11). The array substrate eliminates undesirable small bumps created by the metal aluminum or aluminum alloy at a high temperature after being formed on the base substrate (1).