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A comment on E-Ink Case Turns the Back of Your Phone Into a Second Screen.

Re:E-Ink Case Turns the Back of Your Phone Into a Second Screen by goldfeld on Sunday December 02, 2012 @04:56PM (#4862687)
Can't wait to see it come to Android--I'd even change into whatever model they support first, as I think this back screen would see far more use from me than my smartphone ever does. Now if only it could support Wacom, and if that wasn't crappy like the Galaxy Note, that'd be my dream phone.

By not crappy, I mean something feeling quite close to writing on paper, such as the old HP TC1100 (can't get rid of mine). I wonder if there's any new tablet that feels as good.

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Re:E-Ink Case Turns the Back of Your Phone Into a Second Screen by bsimpson on Sunday December 02, 2012 @06:20PM (#4863023)
Can e-ink address individual pixels like that? Seems like it should be able to, but the demos you see always involve full screen refreshes.
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Re:E-Ink Case Turns the Back of Your Phone Into a Second Screen by bitwize on Monday December 03, 2012 @05:32AM (#4864816)
Yes, you can change individual pixels or sub-full-screen regions. But because the pixels are cells of white titanium-dioxide particles suspended in a liquid, simply writing a new pixel value may leave a few particles floating around.

To correct this, older Kindles and Nooks used to flash the screen all white and then all black before displaying a new page. Later models only do this every few page turns (I think on my Nook Simple Touch it's 6).

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Re:E-Ink Case Turns the Back of Your Phone Into a Second Screen by habosa on Sunday December 02, 2012 @08:49PM (#4863507)
Newer Kindles no longer need full screen refreshes for every frame, however after a few of these "mini-refreshes" a full screen refresh is needed to eliminate accumulated ghosting.
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