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Next-Gen Display: MicroLEDs

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41–50 of 93 posts

Re: Next-Gen Display: MicroLEDs

#41
post #26

There was a time where I’d get super hyped when reading these kinds of promises. Transparent displays, foldable screens. Truth is, we’ve been seeing working prototypes at events like CES for more than 15 years. I’ve come to realize the mechanics of these companies are similar to the car industry. New technologies are presented for the same reason car companies present strange concept cars: PR

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…

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

Re: Next-Gen Display: MicroLEDs

#42

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/

What am I missing? Couldn’t we just drag a low-opacity video player over an instance of Photoshop for the same effect?

Re: Next-Gen Display: MicroLEDs

#43
post #9

I'm not sure I see the "revolutionary" aspect of this. With displays, you don't need to make power consumption arbitrarily small. By Amdahl's law, you only need to make it a small percentage of the cpu (and wireless) consumption. In this respect, Sharp's transflective displays (that were found, for example, in the pebble watches,) were already resolving the power issue in the context of smartwatches.

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.

Re: Next-Gen Display: MicroLEDs

#44
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?

Sounds like a pretty good idea for a tv display.

Re: Next-Gen Display: MicroLEDs

#45
post #33

There was a time where I’d get super hyped when reading these kinds of promises. Transparent displays, foldable screens. Truth is, we’ve been seeing working prototypes at events like CES for more than 15 years. I’ve come to realize the mechanics of these companies are similar to the car industry. New technologies are presented for the same reason car companies present strange concept cars: PR

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

Re: Next-Gen Display: MicroLEDs

#46

There was a time where I’d get super hyped when reading these kinds of promises. Transparent displays, foldable screens. Truth is, we’ve been seeing working prototypes at events like CES for more than 15 years. I’ve come to realize the mechanics of these companies are similar to the car industry. New technologies are presented for the same reason car companies present strange concept cars: PR

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 imagined.

Re: Next-Gen Display: MicroLEDs

#47
post #9

I'm not sure I see the "revolutionary" aspect of this. With displays, you don't need to make power consumption arbitrarily small. By Amdahl's law, you only need to make it a small percentage of the cpu (and wireless) consumption. In this respect, Sharp's transflective displays (that were found, for example, in the pebble watches,) were already resolving the power issue in the context of smartwatches.

Somewhere, there's an engineer saying to him/herself "we could use a low-energy CPU in this design, but there's no point because its power consumption is insignificant compared to the display".

Re: Next-Gen Display: MicroLEDs

#48

There was a time where I’d get super hyped when reading these kinds of promises. Transparent displays, foldable screens. Truth is, we’ve been seeing working prototypes at events like CES for more than 15 years. I’ve come to realize the mechanics of these companies are similar to the car industry. New technologies are presented for the same reason car companies present strange concept cars: PR

I was excited circa 2016 for OLED displays in laptops but that seems to have died. They were only 2560x1440 panels - I was hoping for 2160p to follow.

Re: Next-Gen Display: MicroLEDs

#49
post #31

Earlier quoted context omitted.

Firstly, these displays promise brighter colors and a wider gamut. Secondly, you only get long battery life in a small package one tiny step at a time, and you want them, either to increase battery life or to make smaller watches. The latter is particularly hard. A typical smart watch is around 10 mm thick, nowadays, 2 or so of which are taken by the display and the back panel. So, if you want to make it 8 mm thick,…

Wider gamut is what might be the differentiator here. With respect to power consumption, the video codec would probably draw more than 100mW [1], and at that point, the 2mW display consumption would not matter. [1] a 640x480@15fps hardware decoder draws 71mW. https://cseweb.ucsd.edu/classes/fa11/cse291-a/pdf/02/JSSC_st...

The display i mentioned is 144x168. 640x480 is over 12 times as many pixels. _if_ decoding scales by #pixels, that would move that 71 mW down to around 6 mW.

Still larger, more so if you go to 30 Hz or higher, but there is no silver bullet if you want a smaller watch or longer battery life.

Re: Next-Gen Display: MicroLEDs

#50
post #48

There was a time where I’d get super hyped when reading these kinds of promises. Transparent displays, foldable screens. Truth is, we’ve been seeing working prototypes at events like CES for more than 15 years. I’ve come to realize the mechanics of these companies are similar to the car industry. New technologies are presented for the same reason car companies present strange concept cars: PR

I was excited circa 2016 for OLED displays in laptops but that seems to have died. They were only 2560x1440 panels - I was hoping for 2160p to follow.

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.
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