Mechanical Pixels

I like mechanical pixels, and specifically non-LCD / cathodic screens. Below is a list of existing devices.

1. Daniel Rozin : Spinning penguins (Daniel Rozin)

This guy has a lot of cool mechanical bit matrix displays, including the three below. A full list is visible at http://www.smoothware.com/danny/.

A kinect device does the bit-capture job, and some custom software activates the N×M rotating penguin-equipped motors.

https://bitforms.art/archives/rozin/penguins-mirror hotlinked from http://www.smoothware.com/danny/

2. Rotating wooden blocks (Daniel Rozin)

Light comes from the top of the screen, and slightly rotating the blocks changes their color.

http://www.smoothware.com/danny/woodenmirror.html https://bitforms.art/archives/rozin/wooden-mirror-2 hotlinked from http://www.smoothware.com/danny/woodenmirrormuseum.jpg hotlinked from https://bitforms.art/wp-content/uploads/2017/09/dr_woodenmirror_1_w-1170x780.jpg

Finally, in the same style his rotating peg mirror and his weave mirror.

3. Faux fur Pom pom (Daniel Rozin)

Same concept, a set of small motors are now pushing black pom-pom(s?) in front of the whites.

hotlinked from https://bitforms.art/wp-content/uploads/2015/11/dr_pompom_1_w.jpg https://bitforms.art/archives/rozin/pompom-mirror

4. Magnetic cells (and other electronic papers)

Well, wikipedia says it better than me. https://en.wikipedia.org/wiki/Electronic_paper

5. Magnetic solenoid & rotating spindle (hikikomorphism)

https://twitter.com/hikikomorphism/status/1078814565633282048 : « Mechanical pixel prototype. Small panel with embedded magnet switches orientation to show black or white side based on direction of current through coil. Thanks to local HRT maximalist @beka_valentine and anarchist hackerspace @noisebridge for helping me source magnet wire »

That's basically a manual minimalist rotating motor. (You know, Maxwell, etc.) Pretty cool.

6. A fuckton (metric) of flipping circles : « flip-dot »

In an unsourced youtube video, you have a large example : https://www.youtube.com/watch?v=LgmawcQ93GA.

And in this Master Thesis, Robert Zacharias (2017) shows a set of good things :

7. ?

Please send me on twitter any more example of such a screen, thanks !