Buying guides
How to choose an ALR screen for UST
A decision framework for room light, screen type, gain, size and mounting.
Projector screens for bright rooms
What ambient light does to perceived contrast and how ALR surfaces help.
UST projector on a wall vs screen
Where walls work, where they fail and why optical surfaces behave differently.
Start with constraints
For UST systems, screen choice is a geometry problem as much as an image-quality problem. Ultra-short-throw projectors send light upward at a steep angle, so screen material intended for conventional long-throw projection is not automatically interchangeable with a UST ALR surface.
Then add the room: windows, ceiling lights, wall reflections, seating width, desired image size and whether the screen can remain permanently mounted. Those constraints usually eliminate more options than brand labels do.