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Thread: News - Researchers develop cheaper and more efficient OLED displays

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    News - Researchers develop cheaper and more efficient OLED displays

    In current OLEDs only a quarter of the energy input goes into producing light.
    Read more.

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    Not a good person scaryjim's Avatar
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    Re: News - Researchers develop cheaper and more efficient OLED displays

    Anyone else worried by this line:

    It appears that, in our OLEDs, the molecules can store electrical energy for significantly longer than is conventionally assumed,” said Chemistry Professor Sigurd Höger of the University of Bonn.
    Is it just me, or is he basically saying that he doesn't know why this happens?

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    Banhammer in peace PeterB kalniel's Avatar
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    Re: News - Researchers develop cheaper and more efficient OLED displays

    He knows why:

    Quote Originally Posted by the paper
    a triplet relaxation bottleneck to internal conversion that is so effective that radiative emission can even arise from higher-lying triplets in electroluminescence (EL)
    And now so do you

    The appears to thingy is probably because by doing so they're bypassing a convention on internal radiation conversion - they're not actually breaking it, they're working around it.

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    Re: News - Researchers develop cheaper and more efficient OLED displays

    I always thought OLED was really efficient with its energy use ! I hope this new tech will apply to lcd, plasma etc

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    Re: News - Researchers develop cheaper and more efficient OLED displays

    LEDs are not very efficient either, around the 25% range. They too lose the energy as heat. It will be interesting to see if this spills over to the huge LED lighting market, the more efficient the better.

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    Re: News - Researchers develop cheaper and more efficient OLED displays

    Quote Originally Posted by kalniel View Post
    And now so do you
    nope, i really don't....

    Or do I? Is he saying that they don't actually store electrical charge for longer but they can emit light for more of the storage period?

    Nope, on second thoughts, I *really* don't get it

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    Banhammer in peace PeterB kalniel's Avatar
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    Re: News - Researchers develop cheaper and more efficient OLED displays

    Well you know why now, you just don't *understand* why

    My guess: By storing charge longer, there's time for more of the magnetic moments flip to a beneficial arrangement that means less repelling and thus wasting of energy as heat.

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    Re: News - Researchers develop cheaper and more efficient OLED displays

    heat? really?

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    Re: News - Researchers develop cheaper and more efficient OLED displays

    Quote Originally Posted by MDOI View Post
    heat? really?
    What else would it be wasted as?

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