Thread: Some news about upcoming Onyx devices
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Old 03-15-2018, 11:40 AM   #410
DaleDe
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Location: Grass Valley, CA
Device: EB 1150, EZ Reader, Literati, iPad 2 & Air 2, iPhone 7
Quote:
Originally Posted by mdp View Post
Correction: an E-Ink engineer specified in a video that for Advanced Color ePaper they ditched black, and only kept cyan magenta and yellow. So there is no mistery in that asyimmetry of the 32,000 results: it's 15 bits in three even chunks, which by the way interestingly means they now can provide 32 shades instead of 16.
It's just, I am skeptical about CMY without the K. I understand one less ink to manage is a hassle less, but Cyan+Magenta+Yellow = brown to my experience...
Maybe that's why they are going for "signage". Not just the 2 seconds refresh time, but brown can replace black in a poster, not in "textbooks' paragraphs".
Actually from their web site the fourth color is white. See E Ink color in our wiki. The colors are transparent to some degree so darkness will represent black. It is not clear when this sort of technology will appear in an eBook Reader but I suspect more changes are needed.

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