Researchers create an OLED screen capable of doubling its size

Flexible and foldable screens have been making their way into consumer electronics for a few years now, with foldable phones and Corsair's Xeneon Flex being a few examples. But researchers at the Pritzker School of Molecular Engineering at the University of Chicago have created (se abre en una nueva pestaña) and demonstrated a thin OLED screen that is not only flexible but can also expand up to twice its original size.

There are undoubtedly many projects where flexible and expandable OLED screens could be useful, with researchers promoting "health sensors and wearable electronics to foldable computer displays." The material was developed by Sihong Wang and Juan de Pablo at the Pritzker School of Molecular Engineering, part of the University of Chicago.

(Crédito de la imagen: Escuela Pritzker de Ingeniería Molecular)

According to the university blog post, creating stretchable OLEDs was indeed the researchers' objective (inventions/discoveries aren't always that specific, though). Wang noted that the latest OLED displays are "very fragile," with no inherent expandability.

A cornerstone of material science is that stretchable materials typically use long polymers with flexible molecular chains. Using their advanced polymer knowledge and their understanding of stretching and molecular-level electroluminescence, the scientists created a framework for designing optimal materials for OLEDs.

They started with computer predictions for new flexible light-emitting polymers. Inspired by the prototype's success, they selected the material with the most effective "thermally activated delayed fluorescence." Apparently, this will be important in creating materials that are competitive with commercial OLED technologies.

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