The way that ALR screens work is to control the angle of light once it hits them. When you watch a projector, you're only seeing reflections – the screen you're looking at isn't generating its ...

This is even more important for ultra-short throw (UST) projectors that work best with an ALR (Ambient Light Rejecting) screen that is designed to reflect the light being projected at it from ...

and those who take the extra step to pair their projector with an Ambient Light Rejecting (ALR) screen are best able to ...