Coherent backlight system for flat-panel holographic 3D display

A coherent backlight system featuring a compact form factor is proposed for flat-panel holographic 3D display. The feasibility of the proposed system based on reflection hologram is experimentally verified by using a hologram to reshape the light scattered by a diffuser into a coherent output. The output of the backlight system is used for 3D image construction with a spatial light modulator, and 3D images with sharp edges and clear depth information are obtained.