Many manufacturers are working on these technologies.
In fact, this week we learned that Samsung and LG will present flip phones this year.
The screen would also be flexible, could fold and hide when the phone was closed.
This technology would allow small telephones with a large screen up to 6 inches, according to known information.
It is not the first time an approved patent is forgotten and is not used to manufacture any rig.
This 2017 will be a crucial year for the development of folding phones.
