In a method for manufacturing an integral imaging device, a layer of curable adhesive is first applied on a flexible substrate and half cured such that the curable adhesive is solidified but is capable of deforming under external forces. Then the curable adhesive is printed into a lenticular lens having a predetermined shape and size using a roll-to-roll processing device and fully cured such that the curable adhesive is capable of withstanding external forces to hold the predetermined shape and size. Last, a light emitting diode display is applied on the flexible substrate opposite to the lenticular lens such that an image plane of the light emitting diode display coincides with a focal plane of the lenticular lens.