A rollable display device includes a flexible display panel, a housing, and a guide part. The flexible display panel is configured to display an image. The housing is configured to house the flexible display panel when the flexible display panel is rolled inside the housing. The guide part is provided at an edge portion of the flexible display panel. When the flexible display panel is rolled inside the housing, the flexible display panel includes a plurality of display panel layers, the display panel layers being spaced apart from each other.