Pixelator for IKEA Ribba Frame

This is not an idea I came up with, I have seen this a couple of years ago at the 32C3 in Hamburg build out of cardboard on a large screen TV. Unfortunately I could not find any images to give the original creator credit, if you can point me to a source I'd be grateful.

I thought it would be a nice to have this as a moodlight on small IKEA RIBBA picture frames.

The models uploaded here fit for 10x15 or 13x18 cm frames.

For the small frame you need a 5" TFT display (I used one from Adafr