It could mean the end for lightbulbs - and turn any object in your home into a light.
Idaho-based startupp Rohinni has revealed lightpaper, a way to print sheets of 'paper' infused with light or tiny LEDs.
They say it can be applied to walls, and even printed onto other objects - turning anything into a light.
The breakthrough has been likened to the emergence of 3D printing, and the firm behind it admits even it isn't sure how it will be used.
Rohinni's LightPaper is much thinner than current lighting technology such as OLED, which is used to power most super-slim TVs like the ones made by Samsung and LG.