Next smash hit? Self-healing phone screens

A patent has been filed for a smartphone display that can heal itself, potentially putting an end to the misery of smashed screens.
Filed by smartphone maker Motorola, the patent describes a way to mend a broken screen by applying heat to the damage.The screen would need to be made of a special type of plastic known as a “shape memory polymer“, which returns to a predefined shape when it reaches a certain temperature.  
Motorola explains that an application would let the user mark out the part of the screen that is damaged, before the handset heats that area using its own power. Alternatively ,   heat could be applied by placing the smartphone in a healing dock overnight, or by pressing a separate piece of material against the screen like an iron. The healing process is only intended to work on smaller scratches and cracks.
The patent was published last week, but this doesn't mean   Motorola are planning to use the technology in handsets any time soon. Before it can become a reality, the company will need to address several issues, such as preventing the polymer screen from reacting with the user's body heat and melting in their hand.

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