US Patent 10893621 Dynamically bendable display device

A dynamically bendable display device is disclosed. When an external force is being applied, a bending angle of a first screen can be arbitrarily changed, and cylinders after bending are moving to push against each other. When stop applying the external force, a supporting force exists among the cylinders, thereby to enable the first screen to remain still in any state of bending, and to realize dynamically bending of the first screen.