I have been asked if I can make a simple display, which must be some sort of POV, but instead of the LEDs or your eyes moving, you just blink, and you can see the graphic or letters.
The guy insists the had them in some store displays that he used to sell.
He describes it as being like a vertical row of LEDs on the edge of a cabinet, and when you blink your eye, you could see the name of cigarette brand ( in those days when you could advertise them )
I asked if he meant as your eye passes horizontally over the row of LEDs and he insists it was when you blink, with your head stationary.
I asked if the letters were sometimes mirror imaged ( as would be the case for a normal POV relying on your scanning your eyes left right), and he reckons not.
I have searched a bit but can find nothing like this, and struggle to imagine how it could work.
Anybody heard of this ?