How do projectors and screens show the color black if black is the absence of light?

Question

How do projectors and screens show the color black if black is the absence of light?

In: Technology

Answer 1

You would be amazed how dark something can look when directly next to something bright. The back of the screen is technically as dark as black can get, but it’s amplified by surrounding light.

This is why poorly lit shots look terrible on screens, the TV has to fight to differentiate the darks by adding small amounts of light.