We heard some rumors about a foldable smartphone from Samsung, but now it's time for a more behind-the-scenes look at things. A patent filed in the latter half of 2014 shows just how such a smartphone can be constructed (it's one of several patent applications). The foldable screen is the key and from the patent illustrations it seems that it will sit on top of a textile-like material. Tensile springs along with some additional mechanisms keep the bendy screen taut when the clamshell is open. The central hinge is an important part of that too. A design for a foldable smartphone The other patent application shows that the device may be opened in a laptop-like configuration, instead of opened flat. This design looks like it uses a different hinge mechanism and an "elastic unit" to keep the screen taut. A tablet with laptop mode So, Samsung is exploring several avenues - the first one seems aimed at clamshell smartphones, while the other can make tablets that bend into a laptop position. Here's a 3D render from a patent filed in Korea that shows what such a device might look like. The patents are from a year ago, the actual devices are expected as early as January, if rumors are to be believed. Source 1 Source...
Source: http://www.gsmarena.com/patents_reveals_designs_for_foldable_samsung_smartphones-news-14033.php