Lower cost printers are absolutely using LCDs with an LED UV light source. These resin curing printers are pretty darn cheap as well, and have a ton of resolution. They also excel on volume as they do expose the entire plate at once and don’t require scanning a laser around.
The material you get out of such a printer is of course entirely different from an injection molded part.
The material you get out of such a printer is of course entirely different from an injection molded part.