Short definition
A projection screen is the surface onto which a projector's image is cast. Events use front-projection, rear-projection, and frame-mounted screens in various formats and fabric specifications.
Detailed explanation
Screens are classified by application type, aspect ratio, and fabric properties. Front-projection screens reflect light toward the audience; rear-projection screens let it pass through the surface. Gain describes reflection strength: a gain of 1.0 matches a standardized white surface, while high-gain fabrics boost brightness within a narrow viewing angle.
Screens are available in manually rolled, electrically motorized, or frame-stabilized versions. Large events use aluminum-profile tensioned frame constructions capable of widths from 4 to over 20 meters. Curved screens enable panoramic projection for immersive stage experiences.
Relevance in this field
The screen is an often underestimated part of the projection chain. The wrong fabric or insufficient tension noticeably degrades image quality, even with a high-end projector and signal.
Practical example
For a conference, a 7 × 4 meter tensioned-frame screen in 16:9 format with matte-white fabric (gain 1.0) is installed. Its wide viewing-angle characteristics ensure even brightness for audience members in the outer rows.
Related terms
Projector, front projection, rear projection, projection surface