A display device includes an array substrate, and a counter substrate facing the array substrate. The array substrate includes a plurality of signal lines arrayed in a first direction in a manner spaced apart from each other, a plurality of scanning lines arrayed in a second direction in a manner spaced apart from each other, a plurality of pixel electrodes provided to respective openings of pixels each surrounded by two adjacent signal lines and two adjacent scanning lines, a plurality of semiconductors provided to the respective pixels, and a common electrode overlapping the pixel electrodes with an insulating film interposed between the common electrode and the pixel electrodes.