Foldable Display Crease Prevention via Shape Memory Control

The patent applies preliminary anti-action by using a shape memory member to preemptively counteract the creasing that occurs during folding. The shape memory member is positioned to oppose the deformation force, and a tensioning member applies pre-tension to prevent crease formation before it happens during the folding operation.

The patent utilizes parameter changes by employing a shape memory member whose mechanical properties (shape, curvature, stiffness) can be dynamically altered in response to folding angle changes. The control unit adjusts the shape memory member's parameters based on detected folding angles to maintain surface smoothness across different display states.

The patent employs flexible shells and thin films by using a shape memory member that can be integrated as a thin, flexible component behind the display surface. This allows the crease-prevention functionality to be added without significantly increasing the device's thickness or structural complexity.

The patent applies mechanics substitution by replacing complex mechanical crease-prevention mechanisms with a shape memory member that uses material science principles. Instead of multiple mechanical components and actuators, the system uses the intrinsic shape-memory properties of a specially designed material element.

The patent implements feedback by using a sensor to detect the folding angle in real-time and feeding this information back to the control unit. The control unit then adjusts the shape memory member's tension or shape based on the detected angle, creating a closed-loop control system that optimizes crease prevention dynamically.

The patent applies self-service by designing the shape memory member to automatically respond to folding conditions without requiring complex external control. The shape memory material inherently adjusts its properties in response to the folding environment, reducing the need for sophisticated control systems.