Various techniques to visualize a 3-D object/scene have been proposed until now; stereoscopic display, parallax barrier, lenticular approach, integral imaging display, and holographic display. Application for a real existing 3-D scene is one of important issues. In this paper, at first the fundamental limitation of integral imaging display for deep 3-D scene is discussed. Then a two main types of holographic display; digital holography approach that digitally capturing an interference pattern and a computer generated hologram (CGH) approach from a set of perspective images are overviewed with describing the radical advantages and disadvantages.