What is a 4K projector?
Difference between native 4K and pixel shift
If a beamer displays at least 3.840 x 2.160 pixels, we speak of a native 4K beamer. Currently, as a private individual, you mainly have the choice of beamers with pixel shift. These beamers support a lower resolution, but simulate the 4K picture quality. A built-in 4K chip ensures that the pixels move quickly back and forth. In this way it seems like you see more pixels. This makes the image sharper but not as sharp as a native 4K image.