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Old 06-23-2008, 08:00 AM   #16
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Old 06-24-2008, 12:59 PM   #17
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Ahh... I didn't realize that side lighting required another layer of glass. I thought that it was possible to illuminate the existing glass substrate of the screen.
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Old 06-24-2008, 01:06 PM   #18
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Lightwedge is working on a version for the Kindle according to a post on the Amazon Discussion Boards. Maybe they're working on one for other readers as well.
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Old 06-24-2008, 01:36 PM   #19
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Lightwedge is working on a version for the Kindle according to a post on the Amazon Discussion Boards. Maybe they're working on one for other readers as well.
I like the idea, but then I also liked it when we heard essentially the same thing about one for the Sony back in November 2006, on these boards.

If it makes it to market, great, but I won't hold my breath.

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Old 06-24-2008, 01:42 PM   #20
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Ahh, so Lightwedge likes to shine us on (so to speak).
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Old 06-24-2008, 06:27 PM   #21
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I don't think it would ever be done, or would be cost effective, but I wonder if even theoretically the white particles in e-ink could be made to glow. At a simple level, passively by absorbing light and re-emitting it later, which might buy one an hour or so of in-the-dark reading, and would probably increase perceived contrast even in normal lighting. Or at a more complex level, by a trickle charge making a special white-particle material emit light. And I wonder if the latter could work without interfering with the charges required to change the grey scales of cells.
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Old 09-19-2011, 02:54 AM   #22
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hey, you guys, there's a backlighting solution for e-ink displays. I'm not sure of the details, but go to wikipedia and search for the first e-ink cell phone. It will say that it is somehow lit. The rest of the research is for you.
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Old 09-19-2011, 04:33 PM   #23
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eink is never back lit because its opaque. the first eink phone did not have back lighting. i know this not only because its impossible but also because i have one within reach while typing this.
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Old 09-20-2011, 01:45 AM   #24
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hey, you guys, there's a backlighting solution for e-ink displays. I'm not sure of the details, but go to wikipedia and search for the first e-ink cell phone. It will say that it is somehow lit. The rest of the research is for you.
I have one of those phones (Motofone F3) - in fact, I just posted about it in another thread. I don't remember exactly how the illumination works, but I don't think the screen was backlit - I think it was lit from the side or bottom. The keyboard was backlit, though.

(I can't find my charger or I'd provide more details).
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Old 09-20-2011, 02:25 AM   #25
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It's self-evidently not backlit, for the very simple reason that eInk screens are opaque, and hence cannot be backlit. The previous poster is wrong in saying that there's a backlighting solution for eInk - there isn't.
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Old 09-20-2011, 02:43 AM   #26
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I like the idea of adding glow-in-the-dark material to the white pigment.
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Old 09-20-2011, 02:48 AM   #27
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hm... I may be a little grumpy here... but before mankind invented e-Readers and even Computers, all of us were reading paper books and nobody was asking for a backlit book! Nobody said that it was not convenient to read their Salinger in the dark, because it is not backlit!
e-Ink panels are the closest thing to paper that there is - why anybody would need back-lighting paper, even electronic?...
just being grumpy...
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Old 09-20-2011, 10:16 AM   #28
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It's self-evidently not backlit, for the very simple reason that eInk screens are opaque, and hence cannot be backlit. The previous poster is wrong in saying that there's a backlighting solution for eInk - there isn't.
I'm not sure about the Motophone, but my Samsung Alias 2 cellphone has an e-Ink keyboard and definitely seems to be backlit. This review (http://www.laptopmag.com/review/cell...g-alias-2.aspx) also mentions backlighting:

"The white keys are backlit, which makes the black text easier to read; and the buttons are soft and easy to type on."
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Old 09-20-2011, 12:07 PM   #29
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"The white keys are backlit, which makes the black text easier to read; and the buttons are soft and easy to type on."
From the photo, they could easily be side-lit. Those buttons look thick.

I wonder, does the backside of an e-Ink display have a negative image of the front side? I suspect that it does. This would explain why, even if the white pigment was translucent, it cannot be backlit.
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Old 09-20-2011, 01:15 PM   #30
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the alias keys have a bubble over them and the light comes from the side not the back. the reviewer wrote back lit out of laziness or ignorance.
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