Patent ID: 8872181

Claim:
A thin film transistor array substrate, comprising: a thin film transistor in a pixel region on a substrate, the thin film transistor including an active layer, a gate electrode having a lower electrode and an upper electrode, source and drain electrodes, a first insulating layer interposed between the active layer and the gate electrode, and a second insulating layer interposed between the gate electrode and the source and drain electrodes; a first line and a second line on a same layer as the gate electrode, the first line and the second line including a same material as the gate electrode and being aligned in a first direction; a third line crosses the first line to define a pixel region, the third line being on a same layer as the source and drain electrodes, including a same material as the source and drain electrodes, and being aligned in a second direction; a repair line on a same layer as the active layer, the repair line including a same material as the active layer; and a pixel electrode in the pixel region, the pixel electrode being on a same layer as the lower electrode and including a same material as the lower electrode.