The CLR screen, short for ceiling light rejecting screens, generally is used to go with an ultra short throw projector.
As we all know, ultra short throw projector can be placed very near to the screen, by using a combination of wide-angle lenses and mirrors to beam an image onto the screen in front of it. For smaller spaces, ultra short throw ratio is a particularly important feature, for larger rooms, ultra short throw ratio makes it easier to set up, sparing most of the need for ceiling mounts or tripods, etc.
With the growing popularity of ultra short throw projectors, CLR projector screens Come into play. Because ultra short throw projectors project the image from the bottom up onto the screen, just like the picture below:
The light overhead will impact the image output. The ceiling light rejecting (CLR) projector screens is able to filter out the ceiling light and allow low vertical axis light signals to be projected on the screen, without degrading the image quality.
Therefore, if your projector is not featured with ultra short throw ratio, you don’t necessarily need a ceiling light rejecting (CLR) projector screen, maybe you can go for a ambient light rejecting screen. But if you owns an ultra short throw projector, CLR screen is a great choice for you to get more exquisite pictures.