[Gllug] [OT] TFT displays

[Martin A. Brooks]

Peter Childs wrote:
>     Colour is a difficult subject but monitors give out light hence
> RGB (Red, Green, Blue) where as printer refract light hence cmyk
> (Cyan, Magenta, Yellow blacK)

Mmm, mostly.

RGB is subtractive, CMYK is additive.  So an RGB display gets orange by 
having a certain amount of blue removed.
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