A display device includes a first substrate and a second substrate opposing each other. One of the first and second substrates includes a display surface. The display device further includes a display area and a non-display area surrounding the display area when viewed in a direction perpendicular to the display device. The display device includes a common voltage line formed in the non-display area and over the first substrate, at least one column spacer formed over the common voltage line, a conductive layer formed over the first substrate to cover the column spacer and electrically connected to the common voltage line, a common electrode formed over the second substrate and electrically connected to the conductive layer, and a liquid crystal layer interposed between the first substrate and the second substrate.