Grooved Inorganic Layer for Flexible Display Wire Stress Relief

The patent applies local quality by creating grooves with different depths in the inorganic layer at different locations. The groove depth is greater at the bending area than at the non-bending area, providing localized stress relief where bending occurs while maintaining structural integrity in non-bending areas. This differential groove depth design allows the metal wire to flex without breaking during bending while preserving signal transmission reliability.

The patent employs flexible shells and thin films by forming grooves in the inorganic layer that allow the metal wire to flex during bending. The grooves create a flexible path for the wire to follow during bending operations, enabling the display panel to be bendable while preventing wire breakage through the controlled deformation space provided by the groove structure.

The patent applies segmentation by dividing the inorganic layer into regions with different groove depths - a first region at the bending area with greater groove depth and a second region at the non-bending area with lesser groove depth. This segmented approach to groove formation allows the manufacturing process to create the complex differential depth structure through controlled etching or deposition processes, achieving high bending resistance while managing manufacturing complexity through systematic process design.