the 100 Inch Projection Screen is Built with Four Advanced Layers to Deliver an Exceptional Viewing Experience. the High-Permeability Protective Layer Resists Scratches, is Easy to Clean, & Offers Lasting Durability. a Nanometre-Level Diffuse Reflection Layer Absorbs Ambient Light Naturally, Significantly Enhancing Image Quality. the High-Density Pbs Grid Layer Reduces Pixelation for Sharper, More Detailed Visuals. Finally, the Blackened Layer, Made From Ultra-Black Graphite Grey, Blocks Light Transmission & Improves Contrast. Minimum Quantities Apply.