A Screen With The Highest Resolution The Human Eye Can Perceive

Researchers have developed a screen with the highest resolution the human eye can perceive, surpassing the limits of today’s pixels.

Scientists from Chalmers University of Technology, the University of Gothenburg, and Uppsala University in Sweden have created a display with the smallest pixels ever made — reaching the highest resolution the human eye can perceive. The screen reproduces colors using tiny nanoparticles whose size and pattern control how light is scattered. Their optical properties can also be adjusted electrically. This breakthrough could lead to virtual worlds that look completely real.

As information sharing becomes more complex, the demand for sharper and more precise screens continues to grow.

A screen’s realism depends on the size and number of its pixels. In virtual and augmented reality, where displays sit close to the eyes, image quality is limited because current pixels can’t be made small enough. For instance, micro-LED pixels stop working well below one micrometer in size.

In their study “Video-rate tunable colour electronic paper with human resolution,” published in Nature, the researchers introduce “retina E-paper” — a new type of reflective display. Each pixel measures just 560 nanometers, and the full screen is roughly the size of a human pupil, achieving an incredible resolution of over 25,000 pixels per inch.

“The technology that we have developed can provide new ways to interact with information and the world around us. It could expand creative possibilities, improve remote collaboration, and even accelerate scientific research,” says Kunli Xiong, Associate Senior Lecturer/Assistant Professor at the Department of Materials Science and Engineering at Uppsala University, who conceived the project and is the lead author of the study.

source Chalmers