APPLE INSIDER
The rumored iPhone Fold or iPad that uses a flexible display could use new technology to prevent the display from getting too brittle from cold weather by warming the screen before bending it, by using a combination of heating elements and even the pixels of the display itself.
The initial wave of foldable smartphones has suffered a number of problems relating to their flexibility. While this has prompted a design rethink from producers to fix initial issues, there are still more situations that need to be addressed to make the phone format more robust.One such issue can be the effects of temperature on materials. While warm temperatures could allow plastics and other materials to be more flexible and malleable, colder temperatures have the opposite effect in making them less pliable.
Source: APPLE INSIDER