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Brightness and contrast in reflective color LCDs are very poor, because the polarizing filter blocks half the light, then the color filter on each subpixel bloc

Brightness and contrast in reflective color LCDs are very poor, because the polarizing filter blocks half the light, then the color filter on each subpixel blocks a further two thirds, so a fully "white" image will only return one-sixth of the incoming light. Power efficiency has also improved for backlights, so there's less of a benefit to omitting one than there once was.

oynqr 4y ago
These displays can also work wonderfully, see the Amazfit Bip.
torginus 4y ago
But since human vision perceives brightness logarithmically, a 6x drop still looks like a surface darker by a constant amount I think. This is an issue that regular, backlit LCDs also need to overcome.