reconstruct the 3D image. The process of recording information for light wave on object, by using the principle of interference is the first step, called holographic recording [5]. Usually, the laser is used as the coherent light source because it... ... middle of paper ... ...on but also increase interaction with audiences. On a trade fair, holographic display is also very attractive and gain more attention from customers. In the future, it is possible that the distance education and video conferences