A rollable display device includes a rollable structure including a plurality of unit structures, a display panel structure attached to the rollable structure, and a plurality of magnetic objects on a bezel region of the rollable structure, wherein respective widths of the unit structures increase in a direction from a first side of the rollable structure to a second side of the rollable structure, wherein the unit structures collectively form first through (n)th rolling cycles, as the rollable structure is rolled, and a (k)th rolling cycle encircles a (k−1)th rolling cycle, and wherein the plurality of magnetic objects aligns the (k)th rolling cycle with the (k−1)th rolling cycle by causing a magnetic attraction between the (k)th rolling cycle and the (k−1)th rolling cycle.