Patent ID: 7936432

Claim:
A display device comprising: a substrate; a display unit on the substrate, the display unit including a plurality of subpixels; wherein each of the plurality of subpixels include a thin film transistor comprising a semiconductor layer, a gate insulating layer, a gate electrode, an interlayer insulating layer, a source electrode, and a drain electrode, and wherein each of the plurality of subpixels include a first electrode connected to the drain electrode, an organic light emitting layer, and a second electrode; a driver that applies a driving signal to the display unit; a pad unit that applies an electric signal received from the outside to the driver; a plurality of lines that connects the display unit to the driver; and a plurality of pad electrodes disposed at one ends of the lines connected to the driver, wherein each of the plurality of pad electrodes include: a first conductive layer including substantially a same material as the gate electrode; an interlayer insulating layer on the first conductive layer, the interlayer insulating layer exposing a portion of the first conductive layer; a second conductive layer on the interlayer insulating layer, the second conductive layer including the substantially same material as the first electrode; and a third conductive layer on the second conductive layer, the third conductive layer being connected to the first conductive layer by passing through the interlayer insulating layer, wherein the each of the pad electrode includes a first end connecting to the each line, a second end opposite to the first end, and a body area except the first and the second ends, and wherein widths of the first and the second ends are narrower than a width of the body area.