Samsung To Take On Sony and Motorola With a Vertically Folding Phone.

Samsung's first foldable phone, the Galaxy Fold, introduced a new form factor for smartphones. The phone opens into a tablet-sized display and folds into a thick bar with a secondary display on the outside. Although the Fold failed at launch due to design mishaps, it seems that the company is far from done experimenting with new designs for foldable phones. A patent...