Researchers have developed a retina e-paper that uses tiny pixels to produce a display indistinguishable from reality.
A team across three Swedish universities – Chalmers University of Technology, the University of Gothenburg and Uppsala University – has created a tiny, pupil-sized screen with an ultra-high display of over 25,000 pixels per inch.
They say this represents the smallest amount of pixels ever achieved on a screen that the human eye can perceive, which could offer a breakthrough for virtual or augmented reality applications.
The current issue with such applications is that as the screen moves closer to the eye, the pixels that comprise it need to get smaller and smaller.
However, currently pixels cannot be made small enough. For example, on a micro-LED screen, pixels can’t get much smaller than one micrometre in size, which means the image will start to look ‘pixelated’ and lose its crispness.
In their study, the researchers developed a retina e-paper, a new type of electronic...