Patent ID: 8687158

Claim:
An array substrate for an in-plane switching mode liquid crystal display device, comprising: a gate line on a substrate; a gate insulating layer on the gate line; a data line crossing the gate line to define a pixel region on the substrate; a common line substantially parallel to and spaced apart from the gate line; a gate electrode connected to the gate line, wherein the gate electrode protrudes from the gate line; a semiconductor layer disposed over the gate electrode, wherein an area of the semiconductor layer is less than an area of the gate electrode; a source electrode connected to the data line, and a drain electrode spaced apart from the source electrode, the source and drain electrodes disposed on the semiconductor layer; a plurality of pixel electrodes integrated with the drain electrode and extending from the drain electrode in the pixel region; and a plurality of common electrodes connected to the common line and alternately arranged with the plurality of pixel electrodes, wherein each of the source electrode, the drain electrode, the data line and the plurality of pixel electrodes are comprised from a first conductive material layer and a second conductive material layer, wherein the second conductive material layer is disposed on the first conductive material layer, wherein the plurality of common electrodes includes a first common electrode directly extending from the common line and a second common electrode and which is directly on the gate insulating layer, directly contacts the gate insulating layer, and contacts the common line only through a contact hole of the gate insulating layer, wherein the first common electrode has a straight line shape, wherein the first common electrode is spaced apart from the data line and does not overlap the data line and the plurality of pixel electrodes, wherein the data line directly contacts the gate insulating layer therebelow, and wherein the first conductive material layer is made of an opaque metallic material, and the second conductive material layer is made of a transparent conductive material.