Holography is a technique which can reconstruct the three-dimensional (3D) features of the object, and the 3D holographic images can be viewed without the visual aids. The coding material/equipment is very important for the qualities of the final hologram, for example, the mini-mum pixel size of the spatial light modulator (SLM) or digital micro-mirror device (DMD) limits the realization of a big viewing/diffraction angle of the holographic im-age.