1. Introduction
We can often see the three-dimensional holographic communication technology in science fiction movies, using the principle of three-dimensional computer graphics, and the distant person or thing can been projected in the air in the form of three-dimensional. With the development of science, all the equipment are miniaturization and precision, while the display device cannot match, and people have a demand for a new display technology to solve the problem. The 3D holographic projection is precisely as this role.