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Full Color Electronic Paper a Reality

alumniac.com writes "Good riddance to backlighting, full color electronic paper is set to take the market by storm. On another note, this will add a lot more zing to my paper airplanes." This is a little light on the technical details but it's an interesting read, especially because this isn't as far away from hitting the market as a lot of the stuff we see around here.

11 of 202 comments (clear)

  1. Re:Colorspace? by Neon+Spiral+Injector · · Score: 5

    If the surface was truely changing color, then it would have to use the subtractive primary colors.

    But from how it sounds, the light passes through a filter, and is either reflected by capsule behind it, if it is white, or the light is absorbed if the capsule is black.

    If the capsule is white, the light is reflected back up through the filter. By grouping the additive primaries together (RGB) you then pick what combined wave lenghts are coming back to the eyes.

    So it is still pretty much color LCD, with a reflective background, but now instead of making the pixels opaque to be black, you just turn off the reflection behind a the pixel.

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  2. Potential pr0n problems by Brento · · Score: 5

    Once an image has been produced it will remain visible even with the power switched off.

    Whoa, not good. That means I can't just hit the power switch and pretend I was done for the evening when the girlfriend walks in. Might have to actually run another application and switch over to it. Not good.

    On the other hand, this could mean a self-updating Hustler magazine. Hmmm. You could pull out that ten-year-old magazine and see what the chick looks like these days - see what all those years of tanning beds got her. Heh.

    --
    What's your damage, Heather?
  3. GREAT by vbrtrmn · · Score: 5

    This is great, now MacDonalds will be able to market to children right on their textbooks. We can have scrolling banner ads with history, about how WalMart founded the west! Then in algebra we can learn how Coke is better than Pepsi!

    This will rock!!

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    microsoft, it's what's for dinner

    bq--3b7y4vyll6xi5x2rnrj7q.com

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    it's a sig, wtf?
  4. Squeezably? by tarsi210 · · Score: 5

    You know who's going to jump on this, don't you?

    Charmin

    Combine it with Playboy and you have a whole new protocol: PTP (Porn via TP)

    HONEY?! What the *hell* were you looking at???

  5. My dream by table+and+chair · · Score: 5

    I once had a dream that I owned a truly reflective display on which I ran Photoshop and QuarkXPress. I could lay out a color-critical job on that display that, due to its reflective nature, was capable of reproducing color almost exactly as it would be reproduced with ink-on-paper, rather than via the crude approximation of an emitive display.

    I could then unplug that display, slip it into an envelope, overnight it to a client and plug in a new display, because they were so cheap and ubiquitous (I'd buy 500 "sheets" at a time at the local office supply superstore).

    No need for a printer. No need for an inaccurate CRT to calibrate. No need to worry that the color on-screen and on-proof wouldn't match, because they'd use the same model, and our eyes would see them the same.

    It sounds like this "electronic paper" is nothing even remotely like my dream (low resolution, an RGB color model, prolly expensive...). And it doesn't address the fact that ink is tactile and three-dimensional, or that it reacts differently to different surfaces.

    What I need is a surface that could rearrange itself molecule-by-molecule to create something indistinguishable from printed output, but that's probably not going to happen anytime soon. :(

  6. Links by chaidawg · · Score: 5

    Eink can be found at Eink.com There is also an image of there product with text from hamlet here. Hope that gives everyone some insight.

  7. No doubt, the EU will be wondering... by ackthpt · · Score: 5
    How do you make this recyclable?

    There's a great push in the EU to make PC's recyclable, reducing hazardous waste and sparing landfill space for truly non-recyclable garbage. IMHO, one of the worst materials for recycling is composites, i.e. Drink Boxes, which can be aluminum, plastic and paper.

    Defined as an unusually high concentration of any substance, which may threaten the environment. e.g. Honey is not, in small quantities hazardous, but 50,000 gallons in your backyard would be.

    --
    All your .sig are belong to us!

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    A feeling of having made the same mistake before: Deja Foobar
  8. How Sturdy is it by buff_pilot · · Score: 5

    One thing that wasn't noted in the article - how sturdy is it? You fold/bend/crinkle paper and it still can be read. How well will this hold up when it ends up in the hands of the lowest common denominators?

  9. Better than "good" resolution... by The+Monster · · Score: 5
    I was confused hy the article's explanation of the resolution:
    The spaces between electrodes are small enough to give a resolution of 300 monochrome dots per inch (dpi).

    ...

    A drawback of the filter approach to colour generation is that the filters need a single pixel for each primary colour. This effectively reduces the resolution by about a third, to 80 dpi.

    First of all, 300/3 = 100, not 80. But that isn't even right - there are still 90,000 dots per square inch, so 30,000 color pixels in the same space, theoretically about 173 per linear inch, arranged perhaps somewhat like this:
    rGBrGBrGBrGBrGB
    gbRgbRgbRgbRgbR
    BrGBrGBrGBrGBrG
    RgbRgbRgbRgbRgb
    As you can see, any L-shaped grouping of adjacent primary pixels can represent a color pixel at resolution 200h x 150v. If this thing is designed correctly, sub-pixel antialiasing can be done to retain nearly the full 300 dpi resolution WRT brightness. There's a great explanation of this on Gibson Research (Poor guy just got over a DDoS attack, and now I'm slashdotting him) as well as a demo of how it works.

    If we can patch together segments of "digital paper", it could be a crucial step in making affordable the wall display panels from Arnold's apartment in Total Recall....

    --

    [100% ISO 646 Compliant]
    SVM, ERGO MONSTRO.

  10. If you're interested in the technical details... by lysie · · Score: 5
    There was an article in the Proceedings of the National Academy of Sciences (PNAS) in April:

    http://www.pnas.org/cgi/content/abstract/98/9/4835

    It describes the methods used to create the paper (authored by people from Bell Labs and by E Ink corp).

  11. Wow... by return+42 · · Score: 5

    ...imagine reading Beowulf on a cluster of these.