Patent ID: 8772775

Claim:
A display device, comprising: a substrate; a gate wire including a gate electrode and a first capacitor electrode formed on the substrate; a gate insulating layer formed on the gate wire; a semiconductor layer pattern formed on the gate insulating layer, the semiconductor layer pattern including an active region overlapping at least a part of the gate electrode and a capacitor region overlapping at least a part of the first capacitor electrode; a data wire including a source electrode and a drain electrode that are disposed spaced-apart from each other and are formed over the active region of the semiconductor layer, the data wire including a second capacitor electrode formed on the capacitor region of the semiconductor layer; and an etching preventing layer formed on a part of the active region of the semiconductor layer pattern and continuously extending from a first end of the etching preventing layer that is interposed between the active region of the semiconductor layer pattern and the source electrode to a second end of the etching preventing layer that is interposed between the active region of the semiconductor layer pattern and the drain electrode.