Scientists have patented a new way to make ultra high-res displays that can bend and are a many thousandths of a mm thick.
They used a miniscule layer of a phase-change material, that flips between two chemical states when hit with current.
By sandwiching it between transparent electrodes, they made pixels just 300 nanometres across and produced images smaller than the width of human hair.
The design could be useful in wearable technology, smart contact lenses or foldable screens.
According to Prof Harish Bhaskaran, who led the research at Oxford University, it will be “at least five years” before any applications appear.
