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Mechanical screen

Using butterfly wing mechanics to make color change
  (+5)
(+5)
 

Using the nano-mechanics of butterfly wings to move the little squares and change the colors and shapes seen.

Instead of pigments, they use structured coloration which manipulates light through a physical interaction with a micro Nano-scale lattice , using interference diffraction and selective reflection, See link.

pashute, Mar 22 2026

https://www.youtube.../shorts/pqh9HEiUORA [pashute, Mar 22 2026]

Bioinspired reflective display based on photonic crystals https://onlinelibra.../10.1002/idm2.12138
[xaviergisz, Mar 24 2026]

tifo on a very big screen https://www.youtube...watch?v=yaBHBn79zm4
Some multicolored in here [minoradjustments, Mar 26 2026]





       They do this at football games, one little square per seat.
minoradjustments, Mar 23 2026
  

       I don't think butterfly wings are a great analogy for changing displays. Unless... maybe I was understanding you wrong - you want to change colour by making each pixel into a little flap which turns? I think that would be a struggle - even if all the little wings could turn just right, you'd only see the 'right' colours from one point.   

       There are display panels that move little coloured particles around. Not exactly like how either octopi and squid or chameleons do it, but still, a physical movement affecting the display. E-paper displays, they're called.
Loris, Mar 23 2026
  

       Analog pixels? (+)
normzone, Mar 25 2026
  

       OK I read [xaviergisz's (how do you say that in English) link.   

       Its a bake of this idea, using structural coloration. So it has been done!
pashute, Mar 25 2026
  

       Hi pashute (which I always thought of as a child-like pronunciation of parachute). My username is just my name, Xavier Gisz. My parents liked the symmetry of a first name starting with the same sound as the ending of my surname.   

       The paper I linked has a wonderful range of examples. I had assumed from your description that each pixel was a micro-acuator which squeezed the photonic crystal to change its colour. One of the references in the paper (from memory it was reference [90]) seemed that it might disclose this, but it was behind a paywall so I'm not sure.
xaviergisz, Mar 25 2026
  
         


 

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