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Tuesday / August 16.
HomeminewsPhone Screen Visibility Improved

Phone Screen Visibility Improved

An anti-reflection film inspired by the nanostructure of moth eyes will make mobile phones screens brighter and sharper, even in sunlight. Developed by researchers at the College of Optics and Photonics at the University of Central Florida, the film has a surface reflection of just 0.23 per cent, compared to 4.4 per cent on a standard iPhone screen surface.

The researchers found that the film provided a four-fold improvement in contrast ratio in sunlight and 10-fold improvement in the shade.

The eyes of moths are covered with a pattern of antireflective nanostructures that allow moths to see in the dark and prevent eye reflections that might be seen by predators.

“Although it is known that moth eye structures can reduce surface reflection, it is relatively difficult to fabricate an anti-reflection film with this nanostructure that is large enough to use on a mobile phone or tablet,” said Guanjan Tan, first author of the paper. “Because the structures are so small, a high-resolution and highprecision fabrication technique is necessary.”

the film has a surface reflection of just 0.23 per cent, compared to 4.4 per cent on a standard iPhone screen surface

The new film contains tiny uniform dimples, each about 100 nanometers in diameter (about one one-thousandth of the width of a human hair). The coating can also be used with flexible display applications such as phones with screens that fold like a book, which are expected to hit the market as soon as next year.

The findings were published in the journal Optica.

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