A rollable display device including a roll frame and a flexible display unit windable in the roll frame, the flexible display unit includes a flexible substrate, a display layer disposed on the flexible substrate, an encapsulation layer respectively disposed on and configured to seal the display layer, a polarization layer, a touch screen layer, and a protection layer sequentially disposed on the encapsulation layer, and adhesive layers disposed between the encapsulation layer and the polarization layer, the polarization layer and the touch screen layer, and the touch screen layer and the protection layer, in which each of the adhesive layers comprise first regions and second regions alternately disposed between a first end and a second end of the flexible display unit, and a modulus of the first regions is different from a modulus of the second regions.