The images projected onto the screen from the projector, are formed from the projection source using a reflective technology called Digital Light Processing (DLP).

The DLP processing board uses a digital micro-mirror device or DMD; which acts as a light switch.

Inside each DMD chip are many tiny mirrors, which correspond to 1 pixel of light in the projected image. The tiny mirrors tilt towards or away from the light source thousands of times a second to produce up to 1024 shades of grey.

In a single-chip DLP system, a color wheel is added to convert the monochrome picture into color. When the color wheel spins, it causes red, green and blue light to fall sequentially on to the DMD chip. When on and off states of these tiny mirrors are coordinated with these flashes of light, over a billion colors can be created.