Can Smartphone Battery Problems Be Solved With Screens With Solar Cells?
Jan 20, 2012 19:28
Today's smartphones have but only one problem across the board. The battery doesn't last long enough. And with heavy usage like messaging, calling and surfing the web with it and running apps in the background, its hard for the battery to last any longer than more than a day.
Arman Ahnood, a researcher at the London Centre for Nanotechnology has a solution: equip smartphone screens with built in solar cells. 36% of the light produced by an OLED display is projected out and the rest of it is wasted. Instead of letting it go to waste, it can be harnessed with photovoltaic cells built into the screen.
His system has an efficiency of 11% producing a total output of five miliwatts on a typical 3.7 inch device. A typical smartphone uses up to several hundred miliwatts and 68.6 miliwatts in a suspended state.
Would this be able to make a difference? And by how much?
One analyst predicts that Apple could sell as many as 40 million iPhones in China in 2013. Reported by AppleInsider, Morgan Stanley’s Katy Huberty issued a note to investors Sunday that touches on the “vast untapped potential” for the iPhone in China. Read more