They’ve finally invented technology that will turn your body into a billboard.

Researchers are developing silicon-and-silk implantable devices which sit under the skin like a tattoo. Already implanted into mice, these tattoos could carry LEDs, turning your skin into a screen.

Here we thought augmented reality was a big thing on a cellphone. Next thing you know your eyeballs will be injected with crystals that polarized when you go outside. It’s freaky tech, but we’re fascinated to see where it goes.

More: How LED tattoos could make your skin a screen – Wired