How to Make a Cheap Projector,How It's Working

A projector works by transmitting an image through a lens that is then viewed on a screen or some sort of flat surface. You can make a cheap projector from the LCD screen of a broken laptop and an overhead projector. You will also need a few tools commonly found around the house, but no special electronic or mechanical skills. Your cheap projector will project a video image, although the quality will not be equal to that of a projector using expensive optics and electronic components.