A stereoscopic display comprises a flat-panel display and an optical layer disposed thereon. The optical layer further includes a lens array layer and a micro-structure layer. The flat-panel display has a display plane. The lens array layer has a base and a plurality of lens with focusing function. The lens array layer adjusts the light field. The micro-structure layer connects to the lens array layer, and includes a substrate and a plurality of micro structures. The micro-structure layer modulates the direction of light so that a stereo image which allows an oblique angle of view natural to the user is displayed.