Researchers from the Henry Samueli School of Engineering and Applied Science of the University of California, developed the transparent and elastic electronic display technology which could be stretched repeatedly, folded, and twisted. Elastic material called organic light-emitting device (OLED) and it does not lose its ability to return to its original shape despite the extreme treated.
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| Imagine an electronics display that's as clear as a window and can stretch like rubber. Scientists may have created just that. They've developed a transparent, elastic organic light-emitting device (OLED) that could one day be the new screen for your smartphone or your computer. (PIcture from: http://www.scienceworldreport.com/) |
The OLED technology is already used in the smart phone screen and television. The elastic material of OLED that developed by University of California team is pioneer of stretchy folding screen technology in the latest mobile phones and other electronic equipments, also can be applied to the clothing, glowing wallpaper, medical equipments, and many others.
"The material that we have developed can be the basis of the electronic mechanism that can be stretched for consumer devices," said Qibing Pei, professor of materials engineering who supervised the research.
When combined with transistor technology as thin elastic sheet film, Pei believes that the material of OLED not thicker than wallpaper it will become a valuable material. "This material provides electronic designers another dimension to be exploited," he said.
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| Schematic (left) and top-view (right) illustrations of an encapsulated fully stretchable OLED display comprising 5×5 pixels. (PIcture from: http://www.nanowerk.com/) |
The study was led by Jiajie Liang one of Pei student and published in the Nature Photonics journal. In that study, the OLED material stretched up to a thousand times, even pulled up to 30 percent more than its original size and shape. But the material can still work very well. The material can still work despite being stretched to twice its original size, can be folded 180 degrees, and twisted into various directions.
The material has an electric polymer coating that can be glowing, set between a pair of transparent elastic composite electrodes. The electrodes are made of nano-sized silver braided cables are bundled with rubber polymers, so they can keep working at room temperature. All the material that can be stretched, folded, and twisted.
"Composite electrodes which we produce have a high level of transparency, good surface conductivity, can be stretched, and smooth. Was all becoming essential for producing the elastic OLED," said Jiang.
OLED material consists of many pixels are made with nano-sized silver electrodes formed by horizontal and vertical intersecting patterns. Although has a great future, the researchers found that these materials have disadvantages. "We are still working to figure out how to protect this sensitive material against the air," said Pei. *** [EKA | FROM VARIOUS SOURCES | SCIENCEDAILY | PHYSORG | UCLA | GABRIEL TITIYOGA | KORAN TEMPO 4355]
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