A stereoscopic image display device includes an array substrate defining an active area and a non-active area surrounding the active area; a gate line on the active area and the non-active area; a gate pad on the non-active area; a dummy line defining a dummy pixel on the non-active area by crossing the gate line; a color filter substrate disposed opposing the array substrate with a liquid crystal layer therebetween, the color filter substrate having a color filter and a dummy color filter at a portion corresponding to the dummy pixel; a black stripe on the color filter substrate on a side away from the array substrate, the black stripe disposed at portions corresponding to the non-active area along edges of the active area; and a patterned retardation film formed over the black stripe.