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Displays Television

Will This Next-Generation Display Technology Change the World? (cnet.com) 58

"I saw the future at CES 2023," writes Geoffrey Morrison, describing "a new, top-secret prototype display technology" that could one day replace LCD and OLED for phones and TVs. "It was impossibly flat, like a vibrantly glowing piece of paper."

Meet electroluminescent quantum dots: Until now, quantum dots were always a supporting player in another technology's game. A futuristic booster for older tech, elevating that tech's performance. QDs weren't a character on their own. That is no longer the case. The prototype I saw was completely different. No traditional LEDs and no OLED. Instead of using light to excite quantum dots into emitting light, it uses electricity. Nothing but quantum dots. Electroluminescent, aka direct-view, quantum dots. This is huge.

Or at least, has the potential to be huge. Theoretically, this will mean thinner, more energy-efficient displays. It means displays that can be easier, as in cheaper, to manufacture. That could mean even less expensive, more efficient, bigger-screen TVs. The potential in picture quality is at least as good as QD-OLED, if not better. The tech is scalable from tiny, lightweight, high-brightness displays for next-generation VR headsets, to highly efficient phone screens, to high-performance flat-screen TVs.

The article predicts the simpler structure means "Essentially, you can print an entire QD display onto a surface without the heat required by other 'printable' tech.... Just about any flat or curved surface could be a screen." This leads to QD screens not just on TVs and phones, but on car windshields, eyeglass lenses, and even bus or subway windows. ("These will initially be pitched by cities as a way to show people important info, but inevitably they'll be used for advertising. That's certainly not a knock against the tech, just how things work in the world....")

Nanosys is calling this direct-view, electroluminescent quantum dot tech "nanoLED," and told CNET that "their as-yet-unnamed manufacturing partner is going to be talking more about the technology in a few months...

"Even Nanosys admits direct-view quantum dot displays are still several years away from mass production.... But 5-10 years from now we'll almost certainly have options for QD [quantum dot] displays in our phones, probably in our living rooms, and possibly on our windshields and windows."
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Will This Next-Generation Display Technology Change the World?

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  • by thesjaakspoiler ( 4782965 ) on Sunday January 15, 2023 @07:41PM (#63211334)

    Any other technology is just a distraction.
    Especially technologies so secret they have to be blurred. =/

  • Vaporwarr (Score:4, Funny)

    by backslashdot ( 95548 ) on Sunday January 15, 2023 @07:53PM (#63211350)

    Iâ(TM)ve been hearing about breakthrough display tech for decades but it never comes to fruition. Back in the 80s it was color LCDs that was hyped and never materialized. In the 90s it was organic based LEDs.

    • Re: Vaporwarr (Score:4, Interesting)

      by LindleyF ( 9395567 ) on Sunday January 15, 2023 @08:41PM (#63211418)
      I'm confused. Those things happened.
    • There's no display tech that will make a groundbreaking change for users anymore.

      What we have is good enough.

      • That's because you can't think of the groundbreaking changes that may occur.

        Others will.

        • And yet this will not "change the world", any more than dorky headsets and the metaverse did.
        • Others might.

          And even if they do, will anyone else even care? This is not clear to me at all.

          It's hard to say what the future will bring, but I do know that whatever the "groundbreaking changes" end up being, it will be something you could emulate with a stereoscopic display of adequate resolution and refresh rate.

          the truly "groundbreaking changes" will be through direct neural inference if they happen at all.

      • What we have breaks easily, hardly flexes, is often the most expensive part of the device, works poorly in sunlight (not sure is qdots can solve that issue). Imagine a display with the properties and cost of a flat flex cable. Not that I think it'll ever be that cheap, but maybe it will be that flexible. Your TV could be like a roll-up projector screen without the projector.
      • You're thinking small.

        Current display tech is neither fully transparent, nor does it scale down (or up if you talk about pixels per inch). There are very much markets for both types of technology that are not met by any current devices.

        Just jump into any article about VR where you can find people bitching about the low resolution of these technically 4K displays smaller than a typical mobile phone.

        • I'm getting sick and tired of all the VR hype. I've got a friend who's into it, says I've got to try it, it's amazing, etc. I point out that my 4 4k screens have more than 35 million pixels, compared to his crappy 3 million, and that even his "virtual world" requires physical controls to achieve anything near reality. He's into racing games - got the steering wheel and pedals. Why? Because the "virtual world controls" suck. You NEED physical analogues of what you're doing for a more immersive experience. S

          • I'm getting sick and tired of all the VR hype.

            You don't need to enjoy VR. Let other people do their thing. The world isn't about you. I'm into it. I like it. And I look forward to better displays.

            I point out that my 4 4k screens have more than 35 million pixels, compared to his crappy 3 million

            Thankyou, you made my point for me beautifully. I mean your comparison is irrelevant, but your point that VR headsets are crappy speaks to my point that current display technology is not good enough.

            He's into racing games - got the steering wheel and pedals. Why? Because the "virtual world controls" suck.

            Err no. I'd wager he had a steering wheel before and it has nothing to do with VR. Appropriate input systems for appropriate hobbies. I'm into shooting games and t

            • Thankyou, you made my point for me beautifully. I mean your comparison is irrelevant, but your point that VR headsets are crappy speaks to my point that current display technology is not good enough.

              And you keep assuming that VR needs headsets. This has NEVER been the case. Take a look at any aircraft simulator from 30 years ago. No headsets, just a cockpit laden with instruments and controls and external displays that gave an immersive experience way beyond anything stupid headsets can provide today. VR has never been only about what you see. It's also about what you touch - the control yoke, the throttle(s), prop pitch, fuel mix, the radio stack, the light switches, the rudders, controls to raise and

  • On the plus side (Score:5, Insightful)

    by 93 Escort Wagon ( 326346 ) on Sunday January 15, 2023 @07:56PM (#63211358)

    It's not a story about another battery technology that may or may not ever see the light of day.

  • by quonset ( 4839537 ) on Sunday January 15, 2023 @07:59PM (#63211366)

    The tech is scalable from tiny, lightweight, high-brightness displays for next-generation VR headsets, to highly efficient phone screens, to high-performance flat-screen TVs.

    That's nice, but how will they hold up to use? I know it sounds odd to be asking about durability for a tv screen, but as anyone who has kids knows, things happen.

    Also, we use the P24 monitors from HP which are definitely thinner than the pervious Lenovo monitors, but their durability sucks. Apply a modicum of force and the screen breaks. Will these wonder screens do the same?

    • If you have kids, you should just live in the barn and be done with it.
      • Re:Durability? (Score:5, Interesting)

        by lowvisioncomputing ( 10234616 ) on Monday January 16, 2023 @08:42AM (#63212424) Homepage Journal

        If you have kids, you should just live in the barn and be done with it.

        Here, let me fix that for you:

        If you have kids, they should just live in the barn and be done with it. They would probably have more fun, more privacy, and more friends coming over to hang out and be with the animals - even if the animals is just some dogs, cats, rabbits, and a few egg-laying hens.

    • There are no monitors which stand up to abuse from Toddlers. Buy cheap for the next few years, or jump on the one that you find that is âresistant to ball point penâ(TM).
    • Re: (Score:2, Offtopic)

      by TwistedGreen ( 80055 )
      My 2-year-old hit my 65" OLED TV with a plastic toy last month. One small crack in the screen and it's completely destroyed. What you're saying is so true. It's ridiculous how easy these new displays are to break, and if the self-test detects any damage it won't even power on.

      After a period of mourning, I replaced it with a 27" CRT TV I found at the side of the road. Now the kids can hit it all they want. Those things are indestructible.
      • I know from experience that even CRT TV's aren't indestructible. Kids can damage anything.
        • by Artemis3 ( 85734 )

          And they won't recover their high frequency hearing ever. Just because we lost it, we shouldn't expose them to this. Not everything about CRT was great.

  • by Design Counts ( 9473391 ) on Sunday January 15, 2023 @08:20PM (#63211386)
    If this display tech emits light then ignore my question, but if it can be reflective then could we finally be talking flexible ePaper/eInk with real colours, unlike the washed out look of even the latest eInk technology?
  • bet it has 3d holographic functionality

  • If we can get them into our glasses lenses and wait for AR tech to catch up, would we really need them anywhere else?

    • Yes we would. Thing with AR glasses is that they are transparent, so unless you are in a pitch black room, they don't do black. That just doesn't work for so many applications you use a screen for. It could be different with VR glasses that have really good AR passthrough, but my personal experience is only with very poor passthrough, so I don't know how viable it is.
  • by Anonymous Coward

    To paraphrase the great Dr Gregory House:

    It's never 5-10 years.

    One in a million prototypes turn in to usable products. Think about it.

  • If it shows up and is worth using, people will use it. How they use it we don't know, so that's enough of that.

  • You will need sunglasses at any time of day to not get your retinas fried by the screens everywhere, flashing and annoying you advertising, propaganda and people that looks like freaking Teletubbies using their large bellies to show stupid videos.

  • Comment removed based on user account deletion
  • by mnemotronic ( 586021 ) <mnemotronic.gmail@com> on Sunday January 15, 2023 @11:52PM (#63211716) Homepage Journal
    A display on my eyeglasses? How am I supposed to focus on something 1/4 inch away from my eye? Even back hundreds of years ago when my eyes were good I couldn't focus that close.
    • That's not how AR glasses work you know. The glass has a holographic waveguide on it that sort of periscopes your view into a small optical package that does the projection, apparent focus distance as far as your eye is concerned is far away.
    • A display on my eyeglasses? How am I supposed to focus on something 1/4 inch away from my eye?

      I take it you wear eyglasses just to look cool? I mean otherwise I'm sure you would have heard of the concept of a lens...

  • by gweihir ( 88907 ) on Monday January 16, 2023 @01:40AM (#63211890)

    No "display technology" will "change the world". Maybe we should permanently ban some "headline makers": from making demented headlines though.

    • Hasn't it though? Looking at my smartphone screen, I see a display technology that has already changed the world quite significantly. Displays everywhere on everything as advertised would be a notable next step.
      • "as advertised" ...and I'll bet that's exactly how this world-changing tech will be monetized: Advertising, "everywhere on everything".

        I'd say CRT screens changed the world. Sure as hell beat using punch cards. Major productivity improvements.

    • No "display technology" will "change the world".

      Nothing like displaying a profound lack of vision and combining it with displaying an indescribable lack of seeing the world around you. It's like you're living in an alternate reality.

      I get it. Monday. I too am depressed at the start of the week, but everything you wrote today on Slashdot has been just utter rubbish, even by your low standards.

      • Well, today IS "Blue Monday" - supposedly the saddest Monday of the year (3rd Monday in January). Kind of makes sense ... the Christmas and New Years holidays are over, weather is crap, the days are short and the nights are long (in the northern hemisphere, anyway), the post-party bills are coming in, what's not to be SAD (Seasonally Affected Depression) about?
  • "That could mean even less expensive, more efficient, bigger-screen TVs. " counts as changing the world now, does it? Fuck's sake.

    • by LesFerg ( 452838 )

      If cheaper manufacturing ever leads to lower retail prices, then yes, that would be a major shift which would change the world.

      It doesn't happen that way tho.

      • If cheaper manufacturing ever leads to lower retail prices, then yes, that would be a major shift which would change the world.

        It doesn't happen that way tho.

        Really? At the turn of the decade I bought a 50" plasma TV. Full HD (1920x1080). Amazing picture. Weights a ton (I moved it back into my bedroom, which is why I know it weighs almost 90 pounds). Consumes 480 watts. No "smart TV" functionality whatsoever.

        The 4 50" smart TVs I'm typing this on cost less than half the price each, consume on average 66 watts each (max 125 watts), weight 26 pounds each, have built-in web browsers and other apps so they can work with or without a computer, and their resolution

  • Probably a promising technology, but its name is misleading IMHO. This thing is about as quantum as the fluorescence effect. Someone not familiar with the technology would think that it's an enormous breakthrough akin to Quantum Computing (tm), while in reality it's waaay more mundane.

  • Saying "flat" when he apparently means "thin" doesn't enhance my confidence in his reporting.
  • Betteridge [wikipedia.org] has you covered.

The unfacts, did we have them, are too imprecisely few to warrant our certitude.

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