The dnp CSI Screen offers a unique combination of extremely wide viewing angles, very high contrast and low colour shift at varying viewing angles (CSI ishort for Colour Shift Improvement). The superior colour shift performance is achieved through advanced optical scattering particles in the screen base material, and in interplay with the black stripe prism structures (also known from the dnp Cross Prism Screen), the outcome is a high efficiency screen suitable for especially relatively large display walls. Made from an acrylic styrene copolymer material, the dnp CSI Screen is highly resistant to unstable projection environments. While acrylic based screens expand/retract with room humidity, the CSI Screen retains its dimensions. This allows design for cubes and display walls with almost invisible seams.