DLP vs SLA
DLP stands for digital light processing, and is a type of vat polymerization. Vat polymerization 3D printing technologies make use of a (liquid) photopolymer resin which is able to cure (solidify) under a light source.
DLP is a “sister technology” to SLA or stereolithography. The only big difference is the light source used to cure the resin. SLA printers use lasers combined with galvanometers to cure resin.
With a DLP 3D printer, the light source is a specially developed digital light projector screen. Thanks to this screen, DLP is generally considered to be faster than SLA.