| ▲ | cubefox 4 hours ago | |||||||||||||||||||||||||||||||
> Isn't that how color images printed paper works, too? No. When you print a piece of paper some color, e.g. red, it will be completely red. But most e-paper screens will only be 33% red (optimistically) and 66% black. This is because physical pixels usually can't change color themselves, only brightness, so you use three of them, and darken the RGB components, to produce a colored pixel. For displaying white on color e-paper screens you will have three non-dark RGB sub-pixels, but each color component only reflects at most a third of the incoming spectrum, either red, green, or blue wavelengths, while white paper (or monochromatic e-paper screens) will reflect all three wavelengths everywhere. | ||||||||||||||||||||||||||||||||
| ▲ | drum55 4 hours ago | parent [-] | |||||||||||||||||||||||||||||||
That’s not really correct, modern color eink displays actually change color, there’s different pigments inside each cell and others are created visually using dithering. Only the older type are monochrome displays with a color filter behaves like you’re describing. | ||||||||||||||||||||||||||||||||
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