Foldable devices nowadays come with relatively small displays, but, in a few years, we may be able to work with devices that integrate larger foldable screens like the Foldbook concept proposed by Wistron. By default, Foldbook offers a 17-inch touchscreen, which can be folded in half to act as a 10-inch laptop. Furthermore, the concept includes a docking station that transforms the tablet into an all-in-one PC.
https://www.notebookcheck.net/Wistron-presents-17-inch-foldable-tablet-concept-that-can-transform-into-a-laptop-and-all-in-one-desktop.524302.0.html