Back in 2016, Motorola filed for a patent that would let them add a heating hinge to its foldable smartphone concept. What good would a heated hinge do? Well, it’ll solve the issue of a permanent crease affecting screens that are folded or straightened constantly. The company’s patent just got granted. While we can’t say this will ever be used for an actual product, it does show us the possibility of this existing.
With this design, it allows for Motorola to use a flexible OLED screen that flexes both inward and outward and can even have more than one hinge. The temperature sensor works even when the phone is off and when it’s folded so when the screen starts to deform because the temperature is low, the hinge heats up to correct this. At the moment, Samsung seems to be the closest one to release a flexible OLED phone, which is slated for a release next year.
Source: GSMArena