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Yeah, that top electrode is supposedly "transparent," but it probably is contributing to the overall dimness of the screen. I also don't know if this method of producing whiteness would work so well in a liquid, which tends to "smooth out" the kinds of optical structures described in the article.
Maybe some kind of pigment that flouresces (converts other wavelengths, e.g. UV, to visible light) could help, but then again, I don't know how much UV might get through the screen.
In checking the E Ink page for info about where their electrodes are located, I noticed again that E Ink really seems to emphasize the flexibility of their displays. I wonder why all the applications we're seeing in eBook readers seem to be rigid?
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