These displays make for very approachable projects. Check out this repo if you're interested in controlling them from a raspberry pi. Adafruit and others sell a

These displays make for very approachable projects. Check out this repo if you're interested in controlling them from a raspberry pi. Adafruit and others sell a variety of sizes. https://github.com/hzeller/rpi-rgb-led-matrix https://github.com/hzeller/rpi-rgb-led-matrix They can run video too (obviously quite pixelated but good for certain styles, eg manga/comic imagery) and there are examples online of projects such as an album cover display that syncs with your music. Once tip: ensure you've got a good power supply if using one of the bigger 64x64 versions especially if you have it on bright with most/all pixels lit at the same time.