Patent ID: 8823010

Claim:
A thin-film transistor (TFT) array substrate, comprising: a first conductive layer that is one of an active layer, a gate electrode, a source electrode, and a drain electrode in a TFT; a second conductive layer that partially overlaps the first conductive layer and that is in a layer different from the first conductive layer; a through hole in a layer between the first conductive layer and the second conductive layer in a region in which the first conductive layer and the second conductive layer overlap each other; a node contact hole integrally formed to include a first contact hole in the first conductive layer and a second contact hole in the second conductive layer such that the first contact hole is continuous with the second contact hole and is not separated from the second contact hole by an insulation layer; and a connection node that is in another layer different from the first conductive layer and the second conductive layer, and that is connected to the first conductive layer and the second conductive layer through the through hole and the node contact hole.