If you reduce the pixel size enough, it becomes a general purpose display technique and has no distinctive look to it. It blurs together into an average value, microscopically. A few display technologies, mostly monochromatic, actually work like this. Laser printers are an example. Generally, they are monochromatic (or quadchromatic) devices. On or off. All output is dithered. But at high resolutions like 600 dpi or more, a fine grid pattern produces a solid grey on paper.

Best HN chat for this ever-popular article: https://news.ycombinator.com/item?id=25633483

Knuth wrote the book on dithering. (Digital Typography, 1999) https://archive.org/details/digitaltypograph0000knut