What a DMD chip looks like in operation | DLP projector teardown

That's a Digital Micromirror Device. A thing I always wanted to see, but never found a projector which was broken enough to be in the trash but yet still working enough to produce an image - until now.

Some other good videos on DLP/DMD:
DLP Technology & Digital Mirror Devic...
Digital Micromirror Devices - in-dept...
How Digital Light Processing (DLP) works