Rapid Prototyping
DLP (Digital Light Processing) is the name of an 3D printing process that cures liquid plastic (photopolymer), by UV light source.
In this case, a 2-dimensional surface is cured in the liquid plastic.
A 3-dimensional object is created by shifting the z-axis
A pallet of photopolymer is available as consumable material, which can differ in different degrees of hardness / strength and can be dyed and processed with various color pigments at will.