The present invention provides an image display device. The image display device includes: a flexible display part which can be changed by an external force between a first state and a second state which have different degree of curve; a pressure member which is arranged on the back side of the flexible display part and applies the external force to the flexible display part; a driving part which provides a driving force to the pressure member to realize the degree of the curve in stages of the flexible display part; and a sensing part which senses the degree of the curve of the flexible display part in order to provide the basis of determining the direction and size of the driving force.
