Affordable 4K projectors are made possible by a bit of clever engineering using DLP (digital light processing) chips, which power many of the best projectors. For the first time in a long time, it's possible to look beyond the familiar flat-panel TV when kitting out a cinema setup—especially if you want a truly cinematic experience.
What's a DLP?
Why a projector instead of a TV?
There's another good reason to choose a projector over a TV, which is all down to the way our eyes deal with light. Whether it's CRT, plasma, LCD or so-called LED, each of these display technologies is defined as "emissive", meaning they involve beaming artificial light directly into the eye. Projections, on the other hand (whether it's a film projectors or a digital one), bounces light off a reflective surface (known as "transmissive")—the same way we see almost everything else in the world around us. Viewing angles are rarely a problem with projected video and the picture is often found to be more relaxing on the eye.