How Does a Film Projector Display the Colour Black?

However what concerning the colours from a video projector? It necessarily does the similar factor. On the other hand, as a substitute of a number of tiny RGB lighting, it tasks RGB colours to other places at the display screen.

Projecting the Colour Black

Now we’re in a position for the thrill stuff. How does a video projector shoot out black gentle? Black gentle will be the absence of any gentle, as we noticed prior to. How do you venture not anything? First, let’s believe a display screen like a TV. In case you have 3 tiny lighting (purple, inexperienced, blue), you’ll make a tiny black dot via simply turning off the lighting for all 3 colours in that spot. Growth, it’s black!

So, is it conceivable that you simply flip off the projector to make black? That can not be proper, can it? If that used to be the case, you could not inform the variation between a projected black colour and the display screen with out the projector even on. Sure, this is precisely the way it works.

Test it out: Within the following symbol, I am projecting a slide this is part black and part white. The slide takes up lots of the display screen.