A display device includes: a first substrate; a wiring unit on the first substrate and including a thin film transistor; a protection layer on the wiring unit and having at least a concave portion; and a light shielding unit on the protection layer, wherein the light shielding unit includes: a light shielding layer; a first column spacer protruding from the light shielding layer; and a second column spacer on the concave portion and protruding from the light shielding layer to be spaced apart from the first column spacer.