Q: Why do I see “triple laser speckle” on my projection screen?

A: What you are seeing is known as triple laser speckle. This effect does not come from the screen itself, but from the way higher-gain Ambient Light Rejecting (ALR) screens interact with certain projectors.

High-gain ALR screens are designed to make the image look brighter and more vivid by reflecting light more directionally. While this improves picture quality in brighter environments, it can also highlight certain artifacts, like laser speckle, that come from the projector’s light source.

This has been a common characteristic of projection setups for many years. With today’s triple-laser projectors, the effect can simply be more noticeable. The speckle affect is a byproduct of projector light technology interacting with high-gain surfaces, not a defect in the screen.