A rollable circular display device (10) is disclosed, comprising, in one embodiment, a ring-shaped display (6) expandable in two dimensions between a stored configuration and an expanded configuration and a body for winding the ring-shaped display in the stored configuration. In another embodiment, the rollable circular display device (10) comprises a housing (20), a circular display (6) expandable in two dimensions between a stored configuration in which the circular display (6) is stored within the housing (20) and an expanded configuration in which the circular display is fully viewable, and an inner cone, being arranged co-axially within the housing (20) and rotatable within the housing, wherein the circular display (6) is wound around the inner cone in the stored configuration.