The term holography actually means the 3D display of any image or any figure. It uses a modern technology that involves the use of light rays and lasers in creating a virtual object in space. It does need a screen but the image formed is either in front of the screen or at the back of it.
The screen is just used to emit light and for the display of the subject. It is a nice way of grabbing people’s attention as watching a presentation in a projector screen sounds boring these days. When a person puts up the subject in a three- dimensional display, it automatically attracts people and brings them in to the stall. The best thing about the Holographic Exhibits for Trade Shows Vancouveris the fact that a person does not need to wear special glasses for viewing the image formed. It can be viewed with naked eyes.
It clearly means that there is no such intermediate between the image and the viewer. When the object seems to be floating in front of the naked eyes and one can actually feel that he or she can touch the object, it brings an enthusiasm inside the viewer and the viewers is bound to be impressed.