Every year thousands of exhibitors spend big bucks on trade show graphics. If trade show displays could be built to use rear projection systems, exhibitors could change the look of their graphic with the touch of a button instead of having to spend thousands of dollars having a graphic printed with a new image. The ability to quickly change graphics is also a great way for exhibitors to change their look quickly between business-to-business and consumer trade shows.

Many trade show displays currently use rear projection systems, with the entasi display being the most notable example. These systems allow an image to be projected from behind the display through a hole in the graphic and onto a specially designed piece of plastic that is sensitive to light. Visitors and attendees will struggle to figure out where the video is coming from.

The rear projection system for entasi displays is not perfected yet. The system only works for a small piece of plastic, and not for the entire back wall graphic. While this system allows exhibitors to change part of their message, it would be really great if there were a rear projection system that allowed them to change their entire look at the click of a button.