@GVDobler posted:Could LEDs be combined like a color wheel?
I remember my first projection TV only had 3 light guns. Yellow, blue, and red. All colors came from those three guns.
That is kind of a strange color wheel. It seems to be confusing the two different kinds of color mixing: (1) Additive, and (2) subtractive. They are very different. Importantly, they have different "primary" colors.
When you are mixing LIGHT, you are doing "additive" mixing. In that case, the primaries are RED, GREEN, and BLUE. Mixing those colors gets you WHITE, not black.
When you are mixing PIGMENTS, you are doing "subtractive" mixing. In that case, the primaries are YELLOW, CYAN, and MAGENTA. Mixing those primaries does indeed give you BLACK.
The difference is due to the fact that pigments don't emit light, they absorb it, and you see what is reflected rather than what is absorbed. Your projection TV would have had RED, GREEN, and BLUE, not yellow.
Your chart appears to be SUBTRACTIVE, but it seems to be labeling CYAN as "blue" and MAGENTA as "red", which is not correct.
LEDs are additive, so you can make WHITE, but not BLACK.
