After my posts about sluggy pixels and shiny pixels, I think it’s only fair to mention the wooden pixels developed in 1999 too. Frame rates are quite acceptable, but there’s no color. They even made a wooden mirror out of them. Here’s a video on YouTube.
Wooden pixels
Sluggy pixels
My brother is an artist. One of his friends made this low-resolution and very-low-frame-rate imaging device. It’s called the PingPongPixel and displays one image every 2.5 hours. That’s about 0.0001 frame per second. Hardly practical, but still pretty nifty. Each pixel is represented by a ping-pong ball, which come in 6 shades of gray.
Anybody know of a display device with an even lower refresh rate?