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Curved screens make our brains light up with pleasure

Why are ever more curved-screen gadgets being launched? It seems bendiness has deep aesthetic appeal and will spur new materials and manufacturing methods
Bending the rules
Bending the rules
(Image: Michael Nelson/EPA/Camerapress)

THE future looks curvy. A spate of gadgets sporting concave displays has already been launched, and the big manufacturers will soon be hurling yet more TVs and smartphones with curved screens on to the shelves. that even Apple鈥檚 forthcoming iPhone 6 will bend to the craze later this year.

There鈥檚 more to the trend than just a novel shape, though. It may be tapping into a deep-seated desire to get away from the hard corners and rectangles that have defined our appliances for decades. The craze for curves is also fueling a search for materials and manufacturing techniques that will help companies exploit it to the full.

鈥淭he first adjective used by people to describe curves is 鈥榮oft鈥,鈥 says Oshin Vartanian, a neuroscientist at the University of Toronto, Canada. 鈥淭he story about curvature is a real story about emotion in the brain.鈥

Vartanian and colleagues espouse the fledgling field of 鈥 understanding the neurological basis for our appreciation of beauty. Last year, he used functional magnetic resonance imaging (fMRI) to test people鈥檚 reactions to pictures of household interiors, asking them to rate rooms as 鈥渂eautiful鈥 or 鈥渘ot beautiful鈥. A large majority favoured rooms with curved features and furnishings over ones packed with straight lines. The scans revealed that curved contours tended to stimulate the pleasure centres of the brain, whereas angles activated circuits in areas that detect threats ().

The findings reinforce a similar study conducted in 2010 at the Walters Art Museum in Baltimore, Maryland, where visitors were shown objects with straight or curved outlines. Here, too, fMRI showed they had a preference for curves.

But electronics has been trapped within a straight paradigm for decades, mostly because of limitations in our manufacturing know-how. That鈥檚 changing. Samsung鈥檚 Galaxy Round smartphone, released in South Korea last October, uses a bendable version of Corning鈥檚 Gorilla Glass called Willow. Corning has since announced an upgraded version, its 3D Gorilla Glass, which it says can bend up to 75 degrees without breaking. And in an industry where even a small advantage in a product鈥檚 looks can translate into billions in extra revenue, some manufacturers are turning to sheets of artificially grown sapphire for their next-generation screens.

聯Electronics has been trapped in a straight paradigm, mostly owing to manufacturing limitations聰

Companies selling curved screens say they offer tangible benefits. The concave shape , allowing screens to be dimmer and thus extending battery life. Adding a curve to a widescreen TV enhances a screen鈥檚 central sweet spot, giving the viewer the illusion of being immersed in the action.

Not everyone finds curviness a big deal. 鈥淚t鈥檚 distinct and different and unique. It does create a 鈥榳ow鈥 factor,鈥 says Paul Gray of industry analysts NPD DisplaySearch. 鈥淏ut the reasons for curvature beyond the styling seem to be extremely tenuous.鈥

Some industry-watchers believe the fascination will prove to be a fad, but curved screens remain a fast-growing market. Gray鈥檚 firm projects that global curved TV shipments will grow from 800,000 units this year to more than six million by 2017 鈥 proof that we like what we see.

Topics: Brains / Psychology