Flexible Display Metal Patterns With Wavy Double-Layer Structure

The metal pattern is divided into multiple segments (first metal layer pattern and second metal layer pattern) separated by organic flat layers. This segmentation allows each layer to independently accommodate stress during bending, preventing crack propagation through the entire metal pattern structure while maintaining display quality.

The patent implements a nested structure where the first metal layer pattern is embedded in the organic layer, followed by another organic flat layer, and then the second metal layer pattern. This nested arrangement allows stress to be distributed across multiple levels, with each organic layer acting as a stress buffer that protects the metal patterns from direct stress concentration during bending.

The patent creates a dynamic stress distribution system where the multi-layer structure allows different layers to deform at different rates during bending. The organic flat layers can dynamically absorb and release stress, enabling the metal patterns to maintain electrical connectivity even during continuous bending operations, thus ensuring signal transmission stability.

The organic flat layers are positioned beforehand between the metal layer patterns to serve as cushioning elements. These layers are designed to absorb stress before it can concentrate in the metal patterns, preventing stress accumulation that would lead to cracks or resistance increases during repeated bending cycles.