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Qualcomm's Butterfly Wing Display Gets Nearer

holy_calamity writes "Technology Review has an update on a screen technology from Qualcomm called Mirasol that delivers LCD-like colors and video but sips power like e-ink. Demonstration Android tablets with 5.7 inch Mirasol displays apparently held up well in bright light and were responsive enough for gaming. Qualcomm are in the process of building a $1 billion new factory to make the screens, which should appear in devices from phone and tablet makers next year."

20 of 168 comments (clear)

  1. Soon by jmorris42 · · Score: 5, Insightful

    Between this and a couple of other low power passive displays working their way to market, one of them is going to succeed. And change everything.

    The display is one of the biggest power hogs right now. The radios in cell phones are also pretty hungry but having an always on display will be game changing. Then when you consider the work on various memory techs that eliminate idle current and the lifetime issues with flash, things are going to continue to be very interesting in the tech world.

    --
    Democrat delenda est
    1. Re:Soon by penguinstorm · · Score: 4, Funny

      Shit. I thought we already changed everything. I'm not buying anything else until we stop changing things!

      --
      Skot Nelson music is my saviour / i was maimed by rock and roll
    2. Re:Soon by somersault · · Score: 4, Interesting

      Indeed.. 30fps from a colour e-ink display. I can hardly imagine how strange it would be watching a video on one of these things.

      This is the beginning of the end of printed magazines, now that people can't complain about eye strain from backlights. It will also be damn cool to be able to do real "living photos" without a backlit display.

      Modifiable tattoos is another fun use that they're already doing with monochrome e-ink - being able to have them in colour that doesn't fade would be awesome too. The whole reason I haven't got a tattoo so far is that I know I'd probably want to change the design at some point.

      --
      which is totally what she said
    3. Re:Soon by nanoflower · · Score: 5, Insightful

      LOL. Hardware engineers can often make more than software engineers in the same company. What you are talking about is people that go off and make their own products that other people buy. That could be hardware or software. Consider the case of two guys named Steve Jobs and Steve Wozniak that built a company started out with a hardware product (and some software to drive it.) It doesn't matter what your background is so long as you can come up with a decent product that people want. Hardware/software/literature/movie/clothing. Come up with a good product at a decent price and figure out how to market it and you too can make millions. T

    4. Re:Soon by LordNimon · · Score: 5, Interesting

      This imbalance will only spur the mass exodus of smart EE's from hardware into software.

      God, I hope not. The worst code I've seen is almost invariably produced by EEs. The last thing the software world needs is more hardware engineers who want to "try out" being a programmer. No thanks.

      --
      And the men who hold high places must be the ones who start
      To mold a new reality... closer to the heart
    5. Re:Soon by Anonymous Coward · · Score: 4, Interesting

      This imbalance will only spur the mass exodus of smart EE's from hardware into software.

      God, I hope not. The worst code I've seen is almost invariably produced by EEs. The last thing the software world needs is more hardware engineers who want to "try out" being a programmer. No thanks.

      FWIW I've seen some hw architected by software engineers "trying out" being a hardware architect, and believe me that ain't a pretty sight either.

      But then I've seen that there are people who are good at both so as with all generalizations, it depends ;^)

  2. Re:Yay by ColdWetDog · · Score: 4, Funny

    This is great! I keep a Sony Reader, since it accepts SD cards, loaded with survival manuals, medical books, car/motorcycle repair manuals, only problem is most of the files are in PDF format, which the device isn't too great at displaying. Combine this screen in a device with large storage and battery, solar charging option and I'm all set Unless Ron Paul continues his trend, he's in second in Iowa, then I'll have no need for such a thing.

    Oh wow. A techno survivalist nutjob. Here on Slashdot.

    Sorry guy, the Aliens have already contacted the Illuminati. NO digital devices will be allowed to the masses. Not even Ron Paul can save us now.

    We're doomed.

    --
    Faster! Faster! Faster would be better!
  3. Next year? Yeah right. by artor3 · · Score: 4, Interesting

    They're just now building the factory, and you expect the product to be in devices next year? That would be the smoothest production bring-up in history. Maybe in 2013.

  4. Re:Backlight by Anonymous Coward · · Score: 5, Informative

    Page two of the article states:
    "In dark conditions, light is directed onto the panel's modulators from LED lights at the edge of the panel."

  5. Simply not enough screen real-estate, I'm afraid. by mark-t · · Score: 4, Interesting

    Make it large enough to handle textbook content presented at a readable size (typically letter-sized pages), and I'd be all over it, as long as it allowed me to upload my own pdf's to it, and, perhaps no less important, as long as it wasn't priced ridiculously high. And yeah, I know there's some e-ink readers oout there with displays nearly that big, but the current state of affairs with eink displays totally blows. Page refreshes are so slow that I'd rather carry 20 lbs worth of textbooks than try to use an eink reader for anything other than the reading of fiction.

    A 14" screen would be ideal... although with a respectable resolution, a 10-11" one might also be able to suffice.

  6. Re:Disruptive by tycoex · · Score: 5, Insightful

    Considering the vast majority of people are perfectly happy with 1920x1080 on a 50" screen, I doubt people will really care much if their 10" screen is any higher than that.

    The BIGGEST complaint/problem with smartphones today is the lower battery life. If I could choose between doubling the resolution on my phone and doubling the battery life, I would choose the battery life in a heartbeat.

  7. Can't wait! by engun · · Score: 5, Informative

    I can't wait for this tech to get into tablets. Just a few of the advantages I'm expecting (and here's hoping there will be no disappointments)

    1. I stare at an LCD screen all day, and I really detest the backlight. This is what prevents me from reading on a "tablet". Mirasol will fix that.
    2. The Kindle's e-ink display, even though it didn't have colour, was simply amazing. However, the slow refresh rates combined with the lack of colour, made it too special purpose. Mirasol fixes all that, allowing for a general purpose tablet + e-reader and I can't imagine why that wouldn't succeed.
    3. The paper like effect (which I assume Mirasol will have), will be so much easier on the eyes - meaning less eye strain. Given a choice between ruining my eye sight and enduring bad colour, I'll choose bad colour anytime.
    4. We can go back to the look & feel of paper without the associated wastage (trees cut down etc. etc). One "electronic book" to substitute them all.
    5. A battery life comparable in the kindle range instead of the lcd range would be an added bonus, but not a deal breaker.
    6. Resolution however is important. I assume that high res screens will be available.
    7. Some form of built-in illumination in the absence of ambient light.

  8. Re:Backlight by mark-t · · Score: 5, Insightful

    Is it stupid to have to turn a light on to see at all?

    You'd normally need a light to read a real book anyways, how is needing a light to read something on a different surface any different?

    Maybe you like having tons of photons projected directly into your eyes, when your pupils are mostly dilated to accommodate reflect the total amount of light visible to you (which actually doesn't tend to average to much if the room is otherwise too dark to be able to read anything that isn't actually glowing, so your pupils are generally more dilated than they might need to be), but not everybody likes trying to read while staring into a flashlight.

  9. Re:Backlight by shutdown+-p+now · · Score: 4, Informative

    You cannot have a backlight with eInk, because it is not transparent. Not sure about Mirasol.

    A compact retractable LED light is certainly possible, and, indeed, precisely what Amazon did with their Kindle cover.

  10. Re:Disruptive by shutdown+-p+now · · Score: 5, Informative

    The reason why Apple needs 2048x1536, and not, say, 1980x1200, is because with the latter they cannot easily scale up existing apps with a simple 2x factor.

    (flexible layouts? what's that?)

  11. Re:E-ink like power consumption? by Jamie+Lokier · · Score: 5, Informative

    This page explains near the end: http://www.mirasoldisplays.com/mobile-display-imod-technology
    It's bistable, so it retains memory of the image without needing power (or only a little power), which is similar to e-ink.
    But it switches much faster than e-ink, so it can do video, presumably consuming power for the regions which change.

  12. Too little too late by manekineko2 · · Score: 5, Insightful

    We've been hearing about this technology for years now, and unfortunately it's taken it so long to get to market that I think they've missed their market window.

    Smartphones and tablets, spurred on in large part by Apple, have entered into an arms race of display quality with consumer displays the likes has never been seen before. The sort of displays our mobile devices have make our computer monitors look shameful, with AMOLED pushing the boundaries in terms of true blacks and contrast ratios and viewing angles, and ever-higher resolutions pushing DPIs to the boundaries of human sight. Most LCD IPS displays, which are the cream of the crop for desktop monitors and better than any flat-screen TV, are really just average at best these days in the mobile world.

    The Mirasol displays, at least the ones that have been demoed, have never been the highest quality displays. Their two huge advantages are daylight-readability and low power-consumption. Those are two very positive traits, but at this stage, I don't really foresee anything outside of a niche market giving up ordinary-circumstance display quality for these.

  13. Loony Tunes Technology by boristdog · · Score: 4, Funny

    This technology uses "interferometric modulators", which I cannot hear in anything but Marvin the Martian's voice.

  14. Re:Image quality issues by fyngyrz · · Score: 4, Interesting

    With just two, the wavelength specificity of the reflected light will be poor: you won't be able to make a bright green spot, merely a greenish spot.

    No. The resonance (physical size) of the cavity controls the color; it doesn't depend upon how many layers are in there.

    This means that if we try to set the pixel as bright as possible (all subpixels on) we'll still only get a medium grey, not white.

    Yes and no (mostly no.) Look at your LCD screen. See that bright, burn-your-eyes out white capability? That comes from r,g and b spots. Meaning, each spot is only emitting 1/3 of the light that it takes to be white, or, in your concept, you're only seeing 1/3 as "white" as you could be (well, not exactly, since our eyes are nonlinear between red, green and blue, but anyway...) Still makes for a nice white. Bottom line: You don't have to reflect every photon to make a decent white. And in fact, paper reflects a lot of them at angles that don't hit your eyes, so you're not getting them all there, either. The "brightness" of the white here will depend on how wide the reflected photons spread on the way back out of the cells. Or to look at it another way, if the light reflection angle is 1/3 of the light capture angle, it'll seem perfectly white to you. The RGB nature of them isn't really the limiting factor.

    each subpixel is either on or off, so each pixel can only display 8 colours.

    No. Each pixel holds many elements. So the color of the pixel doesn't depend upon its neighbors.

    --
    I've fallen off your lawn, and I can't get up.
  15. Re:The diference being by TuringTest · · Score: 4, Insightful

    The diference being that the hardware guy can usually get something, no matter how bad, to appear to work.

    That's what makes them far more dangerous.

    --
    Singularity: a belief in the "God" idea with the "demiurge" relation inverted.