Smartphone displays could become more efficient with a new OLED technology

One of the biggest enemies of smartphone batteries are the phones’ displays. They keep getting bigger, as demonstrated by the OnePlus 7 Pro’s 6.67-inch display, and they need to be bright to be useful outdoors. That means even more energy use. But, a new OLED (organic light-emitting diode) technology could increase brightness and energy efficiency, …

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