How do projectors and screens show the color black if black is the absence of light?
In: Technology
If you are thinking of movie projectors, or something that is projected on to a white screen, that is not the absence of color, that is actually all the colors projected at the same time. If you were to mix a whole bunch of different paints together and spread it on a white background it would look black. So projectors are just painting with light.
There is a whole complex theory behind this that has to do with what color actually is, how we perceive color, and how light projection works but that gets really complicated and takes a bit to wrap your head around. This gets into how projecting all the colors is really actually blocking all the colors and that what you see on a screen that is black is actually just a really dark color but not true black. Like I said it gets complicated
So If you are wondering why something projected on a screen is black, it’s really projecting all the colors.
Now modern tvs and monitors are not projecting and the science behind how they make color gets complex fast and it all depends on what method is used to display that color.
Latest Answers