Autochrome is pretty much just subpixels. You capture and view a greyscale image through the same dots-of-color filter plate, and thus you see color, just like

Autochrome is pretty much just subpixels. You capture and view a greyscale image through the same dots-of-color filter plate, and thus you see color, just like an image sensor uses a Bayer filter to deconstruct color into greyscale (with three times as many pixels), and then your screen has three subpixel per pixel which you perceive as a solid color because they're sorta far away and kinda small.