A flexible image display device includes a window substrate, a polarizing plate, and a touch panel, wherein a distance between a neutral plane and a lower surface of the touch panel based on a visible side during bending is 34% or less to an entire thickness of the flexible image display device. The flexible image display device has excellent flexibility and may significantly reduce a defect rate due to a damage of the touch panel by minimizing the damage of the touch panel even if repeatedly applying bending fatigue thereto.