Is Da-Lite HP an ALR tech?
I have a Da-Lite 2.8 HP screen in my living room. I'm thinking of using it for one of the new UST projectors. The HP is a retro-reflective screen which means it reflects the projected picture back towards it source. This works to a degree since the UST picture is coming from below. Does the HP also reject ambient light similar to the ALR screens that are said to be the only really good tech for the UST projector?