Native panel, pixel shift, or upscaling — three different things
The best 4K home cinema projectors for 2026
Three very different machines are sold as 4K. A native 4K panel addresses 8.3 million pixels; a pixel-shifting design flashes a 1080p or 1440p panel four or two times per frame to place them; an accepting projector takes a 4K signal and shows it at 1080p. All three are legally described as 4K, and only the first two change what you see. The second thing to read is the unit on the brightness figure: ANSI lumens are measured to a standard, plain "lumens" and "LED lumens" are not, and the gap between the two can be a factor of ten on the same box. Then comes placement — throw ratio, zoom range and whether there is real lens shift rather than digital keystone, which crops and softens the image to square it up. We compare how the 4K is produced, stated brightness with its unit, stated contrast and whether it is native or dynamic, throw ratio and zoom, lens shift, and HDMI version with refresh rate.