An array substrate for an LCD device and a method of fabricating the same are disclosed. The array substrate includes: a substrate defining a display area and a non-display area; an n-type driving TFT and a p-type driving TFT in the non-display area; a switching TFT in the display region; a storage capacitor in the display region, the storage capacitor including first to third storage layers sequentially layered with intervening insulating layers, wherein the first storage layer contacts a first semiconductor layer under the first storage layer; and a pixel electrode in the display region, the pixel electrode connected to the switching TFT.