A display device, including a first substrate and a second substrate facing each other and integrally attached to each other by a sealant; a display unit on one surface of the first substrate facing the second substrate; a reflective film on one surface of the second substrate facing the first substrate, the reflective film including a first region inside the sealant, a second region overlapping the sealant, and a third region outside the sealant; and a passivation layer covering at least the third region of the reflective film.