A display that emits no light. I want to make a display that does not use light.
Concept 1 – BB Pellet Array
https://www.zekebuilds.com/bb-tube
This Display uses different colored BB pellets arranged in a matrix to create images. Essentially the BB pellets become pixels.
Concept 2 – Rolling Blocks
Let’s say you were going to rotate a cube about an axis that pierced the center of two of its opposing faces. Essentially, you would have 4 sides that could be painted in different colors. This allows each pixel to be two-bit. If arranged in a matrix, the display would be able to change images significantly faster than the pellet display might. Another advantage is there would be fewer moving parts.
I like the rolling cubes idea better because being able to change images quickly can let you do animations. Do you have 4 colors in mind for the cubes?
This is a very neat idea! What sort of “framerate” are you expecting (probably one or two frames per minute), are you planning on any sort of animated design (a clock?)? Also, are you going to be using light at all in the project or just subverting it with the lightless display? Either way, can’t wait to see it in action 🙂