Flexible Display Screen Reel Restoring Mechanism

The flexible layer is divided into multiple segments (first flexible layer, second flexible layer, third flexible layer) that can independently deform and compensate for each other. This segmentation allows each layer to handle different aspects of the bending stress, preventing any single material from experiencing excessive strain that would cause sliding and loosening.

The patent employs a composite structure with multiple flexible layers made of different materials (including alloy and organic polymer materials). This composite approach combines the advantages of different materials to achieve both flexibility and dimensional stability, preventing the sliding and loosening issues that occur with single-material constructions during repeated bending.

The flexible layers are pre-configured in a stacked arrangement with predetermined mechanical properties. Before bending occurs, these layers are positioned to provide initial resistance against tensile forces, preventing excessive stress from developing during the bending operation.

The patent utilizes materials with specific mechanical parameters (including alloy materials with high strength-to-weight ratio) and designs the flexible layers with optimized thickness and elasticity parameters. These parameter changes enable the structure to withstand tensile forces during bending without failure.

Instead of using a single thin flexible layer that would be prone to creeping and relaxing, the patent segments the flexible structure into multiple layers. Each layer can be optimized for specific functions, and the combined structure provides greater dimensional stability while maintaining overall flexibility.

The patent uses composite material structures where thin flexible layers are combined with other materials (including alloy materials) to create a multi-layer composite. This composite construction maintains the flexibility benefits of thin materials while adding dimensional stability to prevent creeping and relaxing during repeated bending operations.