World’s smallest LEDs from a new semiconductor Micro- and nano-perovskite LEDs promise a new generation of display technology 19 March 2025, Zhejiang University ‘Downscaling’, the process of making elementary devices smaller in size, is at the heart of many technological breakthroughs in computing, information display, and human-machine interactions. For example, the downscaling of transistors has accelerated the speed of computers
What is the use case for 127000 PPI?
AFAIK retina start about 450 for phones, that are already pretty close view.
The closest id probably VR that can utilize 1000+. (AFAIK 2000 is REALLY good!)
But that leaves more than a factor 60 that I can’t see much of a use case for?
VR can maybe use 5000, I seriously doubt it will make any difference above that.
Maybe for low end lithography, you can’t use normal light for anything high end, already at 7nm it requires EXTREME ultra violet. And the lamps for that cost 100s of millions, to make the shortwave light necessary.
But for low end, it could possibly be used for ultra fast and cheap cycle between tape-out and production?
Non-human use cases, would be one. Like, having the ability for machines to “see” highly detailed imagery via camera. Just spitballing. My eyes are shit, so a screen that cool will never be of use.
Maybe, but it would be more logical to simply bypass screen to eye camera, to just transmit the signal from the original camera directly.
But hypothetically yes, that could possible be a use in a future scenario.
That’s it! An ultra fine web of microscopic lights simulating the Christmas tree shrouded in fog.
They have to hurry up and make that, I want to see what that looks like.
What is the use case for 127000 PPI?
AFAIK retina start about 450 for phones, that are already pretty close view.
The closest id probably VR that can utilize 1000+. (AFAIK 2000 is REALLY good!)
But that leaves more than a factor 60 that I can’t see much of a use case for?
VR can maybe use 5000, I seriously doubt it will make any difference above that.
So where is more than 5000 necessary?
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Contact lenses?
127000 PPI e-ink display. Allows transparency.
Needs some kind of extremely tiny body heart driven power source, WiFi chip and processor…
Closer and closer to cyberpunk era tech (and oppression)
Very creative, maybe some day. But I think it will require serious developments in other areas too. Like technologies we don’t even have yet.
we already have tiny flexible screens and the means to beam video data to it wirelessly. we also have microscopic chip litography to handle it.
But no small or translucent batteries
the obvious solution to this problem is running a convenient wire from your eyeball 🤪
don’t necessarily need one if they are power efficent enough.
How would you power them without a battery? It doesn’t matter if it’s really power efficient if it isn’t getting any power.
Wirelessly. Like an NFC tag.
Not saying it would be super practical but if you custom shaped them you could put a wire coil around all of the non seeing parts of the eye.
Just make it sodium based, and a good crying jag will replenish the battery.
you can beam tiny amounts of it ota. it just needs to be very power efficient.
im not saying it wouldnt be a challenge, but isnt solar panel tech possible here?
it just has to be really power efficient.
I’m thinking lithography. The higher the DPI the smaller you can make your components.
SLA printers would definitely benefit, provided these tiny LEDs can put out the required UV.
Maybe for low end lithography, you can’t use normal light for anything high end, already at 7nm it requires EXTREME ultra violet. And the lamps for that cost 100s of millions, to make the shortwave light necessary.
But for low end, it could possibly be used for ultra fast and cheap cycle between tape-out and production?
Non-human use cases, would be one. Like, having the ability for machines to “see” highly detailed imagery via camera. Just spitballing. My eyes are shit, so a screen that cool will never be of use.
Maybe, but it would be more logical to simply bypass screen to eye camera, to just transmit the signal from the original camera directly.
But hypothetically yes, that could possible be a use in a future scenario.
For Christmas tree decorations!
That’s it! An ultra fine web of microscopic lights simulating the Christmas tree shrouded in fog.
They have to hurry up and make that, I want to see what that looks like.
What a cool idea. 👍
VR but right up in my face?
You can’t make lenses to focus properly at shorter distances I think, or you would get an extremely narrow FOV.
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