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Next-Gen Display: MicroLEDs

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Re: Next-Gen Display: MicroLEDs

#71

Post by sharpercoder »

DenisM wrote: post #45
bitL wrote: post #33

Earlier quoted context omitted.

These might be good for pro photographers, though right now I'd rather see affordable 300dpi A4-sized e-book reader with tablet pen and SD card slot to get rid of all my paperwork.

There you go https://remarkable.com

This looks quite promising. However, I'm burned a few too many times buying and trying to use tablets for drawing.

I had the iliad, a Dutch tablet in the very early days of e-paper. Slow, unworkable latency in drawing, buggy software, low support for digital book formats. I tried a few other e-paper devices since then, but they didn't improve on a lot.

The Microsoft Surface 2 seriously improved on this space. But it was still not feeling well - still too much lag. And then there is the huge problem that Windows is not suitable for tablets - it's a nightmare to work with compared to Android.

Surface 3 got it right enough, the feel is good enough to do some serious drawing on it. Microsoft OneNote is pretty much ideal for many usecases but has its cases where it becomes unbearingly slow. I have not yet tried the Surface 4 or the iPad Pro.

The ideal of an android device with a OneNote version which supports plugins and an app-store on a color latencyless e-paper display is still a decade away it seems.

Re: Next-Gen Display: MicroLEDs

#72

Post by est »

delecti wrote: post #61
com2kid wrote: post #46

Earlier quoted context omitted.

Foldable screens have been real and orderable for several years. There problem is, screens need a protective layer on top, and bendable glass tech hasn't caught up. You need to be able to embed a touch layer, have good optical clarity, be scratch resistant, and impart resistant. I've, gently, played with production ready bendable LCDs. Then realized that they weren't practical for any of the sci-fi scenarios I had im…

> any of the sci-fi scenarios I had imagined This is what I don't get. It's entirely possible that I'm particularly unimaginative, but I can't even think of any devices with screens I'd want to bend. All of my devices bend exactly as much as I want them to: none (or at least negligibly).

> but I can't even think of any devices with screens I'd want to bend

How about a 75' TV you can carry around like a scroll.

Re: Next-Gen Display: MicroLEDs

#73

Post by brokenmachine »

mikestew wrote: post #43
djrogers wrote: post #13

Earlier quoted context omitted.

The revolution is in the amount of time the display can be on, and the amount of data it can display 24/7. That is currently the big knock on most smartwatches - you have to move your wrist to activate the display and see the time. If that barrier is removed, it is revolutionary.

"Most smartwatches"? I can think of only one, and that's the primary reason I have a Garmin instead of an Apple Watch. Other than Apple, I can't think of another smart watch that requires one to make a wrist motion in order for the time to be displayed.

My original Samsung Galaxy Gear (that I used literally once, lol) had this "feature". You had to do a douchey motion to see the time, and it often missed your motion so you'd have to do it again.

I knew I'd never actually use it but was hoping it'd be relatively hackable and I'd think of a use case for it. That never eventuated.

Re: Next-Gen Display: MicroLEDs

#74

Post by userbinator »

abrowne wrote: post #54
bpicolo wrote: post #41

Earlier quoted context omitted.

Bending and not-creasable sounds like a tough ask. Those tend to come hand in hand.

It could roll up into a tube instead of folding and creasing.

People will crease them anyway, accidental or otherwise.

Flexible displays are far too fragile to be practical except in applications where they're literally bent only once and then affixed to something for the rest of their life.

Re: Next-Gen Display: MicroLEDs

#75

Post by com2kid »

est wrote: post #72
delecti wrote: post #61

Earlier quoted context omitted.

> any of the sci-fi scenarios I had imagined This is what I don't get. It's entirely possible that I'm particularly unimaginative, but I can't even think of any devices with screens I'd want to bend. All of my devices bend exactly as much as I want them to: none (or at least negligibly).

> but I can't even think of any devices with screens I'd want to bend How about a 75' TV you can carry around like a scroll.

> How about a 75' TV you can carry around like a scroll.

It'd be a rather thick scroll. :)

The problem of break-ability again comes to mind.

The use case is niche. All the electronics for control still have to be there, so it isn't featherweight or anything, and it is not exactly pocket sized, and now the screen is really fragile.

Re: Next-Gen Display: MicroLEDs

#76

Post by nicoburns »

fro0116 wrote: post #60
viperscape wrote: post #50

Earlier quoted context omitted.

I don't understand in general why OLED is taking so long to be mass produced for TVs and monitors. It's like just now becoming mainstream, with what seems like two actually purchasable products.

I have an LG OLED TV, and I would recommend against purchasing an OLED for monitor use. Burn-in is still a huge issue. I've used mine for about a year and the red channel is full of distracting burn-in patterns from still elements on my screen from things like wallpapers, tiled window borders, taskbar/docks, HUDs from games, etc. Does anyone know if MicroLEDs could suffer from burn-in as well? I.e. do they also degra…

I don't have any knowledge of LEDs, but I believe that the burn in problems in OLEDs are due to them wearing out due to them being organic, which presumably wouldn't affect artificial micro leds

Re: Next-Gen Display: MicroLEDs

#77

Post by JKCalhoun »

abrowne wrote: post #54
bpicolo wrote: post #41

Earlier quoted context omitted.

Bending and not-creasable sounds like a tough ask. Those tend to come hand in hand.

It could roll up into a tube instead of folding and creasing.

Bendable displays require bendable batteries, bendable circuit boards, bendable cases, etc....

Re: Next-Gen Display: MicroLEDs

#78

Post by stevep98 »

vanderZwan wrote: post #3

I'm actually most excited by the transparency. If we get low-cost transparent displays, it will finally make finally make Ishii's clearboard an affordable possibility for remote collaboration. http://tangible.media.mit.edu/project/clearboard/

I was thinking about the transparent screens from Avatar

See: http://itsbeau.com/work/avatar/ (scroll down)

Re: Next-Gen Display: MicroLEDs

#79

Post by ttflee »

ccajas wrote: post #66
derefr wrote: post #26

Earlier quoted context omitted.

The weird thing is that we already have “foldable screens.” But all the phone makers have done with them is to give us slightly less bezel on our glass rectangles. I’m wondering if this is a “flying car” thing—if actually handing consumers ultra-thin bendable (but not actually creasable ) panels would be a dumb idea, because consumers would try to exceed their tolerances and break them too easily. (This is also, I th…

>The weird thing is that we already have “foldable screens.” But all the phone makers have done with them is to give us slightly less bezel on our glass rectangles. Also, aren't they used for curved TV screens and computer monitors?

Sure, these displays are bendable. But they have a zero Gaussian curvature everywhere. What would be really interesting is to build a flat panel display that has a non-zero Gaussian curvature at will, e.g. one that fits into the windshield of a car.

There is a catch that programming these displays require one to learn differential geometry as a prerequisite.

Re: Next-Gen Display: MicroLEDs

#80

Post by p1esk »

steve19 wrote: post #62
derefr wrote: post #27

From a bit of googling just now, it seems that LEDs are effectively “two-way” devices: they emit light, but they can also sense light—just like the way that any loudspeaker is also fundamentally a microphone. Which leads me to wonder: would a microLED array make a better camera input than current CCDs?

Interesting idea,although consider density. A Micro 4/3 camera sensor used on the popular Panasonic GH5 video camera is tiny but captures 4k video, displayed on screens far far larger. Micro LEDs would need to be far, far smaller to be used as sensors.

Why?
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