Patent ID: 7952123

Claim:
A thin-film transistor substrate comprising: a first single-layer aluminum alloy film composing gate wiring; and a second single-layer aluminum alloy film composing source wiring and drain wiring, the second single-layer aluminum alloy film connected to at least one electrode, wherein the first single-layer aluminum alloy film composing said gate wiring is arranged on a substrate, the second single-layer aluminum alloy film composing said source wiring and said drain wiring is arranged orthogonally with respect to the arrangement of the first single-layer aluminum alloy film on the substrate, the first single-layer aluminum alloy film composing said gate wiring has the same composition as the second single-layer aluminum alloy film composing said source wiring and said drain wiring, the first and second single-layer aluminum alloy films comprise a first added component and a second added component, both added to the aluminum of the aluminum alloy films, and a weighted sum of a first percentage of the first added component and a second percentage of the second added component ranges from 0.1 to 6.