Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
No, not that kind of baked.

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High visibility display based on low visibility medium
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A box with a transparent front is filled with a dark, opaque liquid. Inside the box are light-colored (and possibly fluorescent (i.e. Day-Glo)) flat objects that can be moved toward or away from the front of the box by actuators. These objects could be in the form of the segments of a seven-segment display (hence the category) or a low-resolution matrix similar to the flip-dot displays such as are used on buses and signs. Actually, the bistable magnetic actuators used in flip-dot displays would be usable for this. Other suitable actuators could be muscle wire, air bladders, wax motors, etc.

An advantage over flip-dot/flip-segment is that it can do grayscale.


P.S. I am shocked that this idea title was available. I was just going to use the subtitle as the title, but it seemed too long, so I came up with that.

notexactly, May 13 2017

Inspiration https://www.google.com/patents/US4923283
I read this electroscopic display patent a while ago, and while I didn't understand it at the time, it inspired me to come up with this idea. [notexactly, May 13 2017]




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