It does not require a projector.

[Spock presses another couple of buttons, and suddenly a small light emits from one end of the PADD... It scans the nearest flat surface, which happens to be the ground, and one of Spock's education videos is projected there.
Spock then ends the movie and hands the device to Elicia.]

Inform me when you experience any difficulty with the device... and I will help you.