Oppo Exploring Smartphone Form Factors With 'Waterfall Screen' Design

Oppo unveiled a prototype device with what it calls a “waterfall screen" design, a curved body said to make a mobile device “almost completely borderless.” The design is part of the company’s exploration of new form factors for smartphones, it said. Oppo’s Find X phone had a panoramic arc screen with a 93.8 percent screen-to-body ratio, it said.