Patent ID: 7130000

Claim:
An array substrate of a liquid crystal display device, comprising: a gate line and a data line on the substrate, the gate line and the data line crossing each other to define a pixel area; a common line parallel to the gate line; a common electrode extending from the common line and including a plurality of vertical portions; a thin film transistor electrically connected to the gate line and the data line, the thin film transistor including: a gate electrode connected to and extending from the gate line; a semiconductor layer over the gate electrode; a source electrode over the semiconductor layer and connected to the data line; and a drain electrode over the semiconductor layer and spaced apart from the source electrode, wherein a portion of the semiconductor layer partly covers a side of the gate electrode disposed between the data line and the drain electrode; and a pixel electrode in the pixel area, the pixel electrode connected to the drain electrode, and includes a plurality of vertical parts alternating with the plurality of vertical portions of the common electrode, wherein the portion of the semiconductor layer partly covering the side of the gate electrode has a length within a range of about 2 μm to about 3 μm from a crossing point of the gate electrode and the drain electrode along the side of the gate electrode.