A display device includes first and second substrates each divided into a display area and a non-display area, a dam disposed between the first and second substrates, a wiring part positioned in the non-display area of the first substrate to overlap the dam, a circuit part provided inside the dam, spaced apart from the wiring part, and positioned in the non-display area of the first substrate, thereby suppressing an operation defect of a gate drive circuit and a screen abnormality defect of a display panel.