Samsung has registered several patents at once: a bending smartphone, as well as transparent displays for mobile devices. In 2015, the Korean corporation has demonstrated a transparent screen for TVs, so it is not surprising that technology in theory can find application in smartphones.
A smartphone with a transparent screen can be useful for applications of augmented reality, which is achieved today with the help of camera phones and specialized software, as well as devices such as Microsoft Hololens.
In addition, Samsung has patented another smartphone with a folding screen and an advanced system of hinges. As follows from the illustrations, such devices are designed for use in landscape mode and can divide the workspace into two parts.