Miroir projectors can project effectively against a variety of surfaces like a light colored wall, a ceiling, or even the side of a camper so a projection screen is certainly not required. However, you may find that a screen enhances and helps make the most of the image from your projector.
If you are interested in learning more about what a projection screen can do for you, please check out this article from ProjectorCentral.com, which is full of great information and recommendations: Projection screens - better than a plain white wall?
Looking for recommendations?
Here are a few projection screens we like and that work with our projectors:
This is not an exclusive list of projection screens that will work with our projectors.