[HN Gopher] Breakthrough in nanostructure technology for real-ti...
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Breakthrough in nanostructure technology for real-time color
display
Author : wglb
Score : 56 points
Date : 2024-03-07 18:55 UTC (4 days ago)
(HTM) web link (phys.org)
(TXT) w3m dump (phys.org)
| m3kw9 wrote:
| Color e-ink
| qwerty456127 wrote:
| Great! I personally would better like a breakthrough in their
| pricing though :-)
|
| The very reason I would like an a eink display is its lofi-
| ness, lack of real-time visual effect bells&wistles. To calm
| down and work with my emails, spreadsheets and mind maps like
| if I were reading and typing on plain paper. So I don't really
| need "real time". I would buy a huge one (like 49-inch 4K to
| fit a lot on one screen) but even an ordinary size costs much,
| let alone so big :-(
| orbital-decay wrote:
| That's not EPD though, that's more like IMOD/Mirasol back in
| the day. It manipulates color by restructuring so it will
| always have the same limitations as MEMS displays like IMOD.
| The picture in the article gives an impression on poor viewing
| angles on this thing.
| i_am_a_squirrel wrote:
| I hate to break it to these people, but we've had real time color
| displays for a while now :D
| Tuna-Fish wrote:
| Real-time color _emissive_ displays. This work is about
| reflective displays. (e-ink)
| fnordpiglet wrote:
| Can't quantum dots not be used in reflective displays as
| well?
| fngjdflmdflg wrote:
| How do you update the dots when the image changes?
| araes wrote:
| From the article, the sizes they're talking about are 10 um
| pixels, or 10 um pitch, so approximately 2540 ppi. [1] Pretty
| respectable by modern standards, as Wikipedia says a lot of
| phones are ~600 ppi. [2] The demo was 3 mm pixels, so not quite
| as impressive.
|
| Not sure what the refresh or contrast are, as the summary was
| really light on actual meaningful numbers. If somebody has the
| paper from something other than a paywall, maybe it has more.
|
| The shape changing part might be neat, depending on how much
| shape changing there is, and how difficult it is to achieve.
| Maybe piezo style pixels or something.
|
| [1] https://en.wikipedia.org/wiki/Dots_per_inch
|
| [2] https://en.wikipedia.org/wiki/Pixel_density
| jajko wrote:
| I am struggling to imagine where to use such a massive
| resolution, well beyond the best human eyes.
|
| As a photographer I can see some use in electronic viewfinders
| maybe, but in general pro / semipro photography is in long term
| decline, way too many enthusiasts (including me) ditched their
| heavy full frames for mere top phones and never looked back
| (for me its general shift into parenthood and lack of time for
| all that annoying processing too, I perform all I ever needed
| in phone in few taps and for more detailed work Samsung's built
| in pen is above great).
| thfuran wrote:
| VR headsets want emissive displays but can make use of
| extremely high dpi on the display element itself.
| itishappy wrote:
| I believe that's the size of the individual particles, not the
| expected pixel size. The particles will still need to self-
| assemble which (I suspect) requires larger numbers of
| particles.
|
| An analogy might be quantum dots, which are nano-scale
| structures, but each micro-scale pixel uses many dots.
| pmontra wrote:
| "the size and color of micro-nanostructures adapt to fluctuations
| in alcohol concentration or pH value"
|
| Varying them quickly enough is the remaining part of the problem.
| fmeyer wrote:
| The idea behind this is not new.
|
| https://scholar.harvard.edu/files/yetisen/files/morpho_butte...
| UberFly wrote:
| We're finally inching closer to that color-changing finger nail
| polish from Total Recall.
| mpalmer wrote:
| Not to mention the singing cereal boxes of Minority Report.
| ClassyJacket wrote:
| That was The Fifth Element!
| Loughla wrote:
| No, it was total recall. The Fifth Element had a box thing
| that painted the secretary's nails. Not necessarily the same
| thing, could just be a little nail robot inside it. Total
| recall had the tap to change color feature.
| LarsDu88 wrote:
| I remember reading about the Lycurgus cup
| (https://en.wikipedia.org/wiki/Lycurgus_Cup) years ago in
| college. Pretty cool we can now control the phenomena.
|
| Highly, highly doubt this will result in a commercial competitor
| to OLED one day, but who knows? Perhaps there will be a path here
| towards translucent displays...
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(page generated 2024-03-11 23:00 UTC)