ALR Screen Test

[wheelee]

Crude tested these ALR materials using the Xgimi CC which is only 350ANSI Lumens,one of this material is used for early warning device Vest

CC is almost center, above the bright part is a milky white wall, around 5pm curtains open

projector viewing is off center the screen, here you can noticed how narrow the viewing angle of these type of ALR screens

& here is one where the CC pj viewing is center to the screen

hope this gives you an idea of these types of screen

 

[An IMDB tomato]

What a great review of ALR screens! a very intuitive contrast of the 3 screens could be seen.
Compared with the ALR screen, the white wall does not have the above-mentioned functions of increasing gain, expanding viewing angle, increasing resolution, enhancing contrast, enhancing color reproduction, etc., These are the reasons why white walls cannot replace screens.