Sharp Corp. unveiled a prototype of its first foldable smartphone on Wednesday, aiming to commercialize it in a few years' time, as it followed Chinese and South Korean rivals in introducing next-generation mobile technologies.Sharp is using organic electroluminescence panels for the new smartphone's display, which can be made thinner than liquid crystal displays with higher-precision pictures. The company said the product has cleared 300,000 folding tests."The product's strong point is that it can be carried by folding it. I think there is demand for it," said an official of the Osaka-base…READ FULL ARTICLE