Segmented Coating Layer Prevents Metal Wiring Corrosion

The coating layer is divided into multiple separate coating regions rather than forming a continuous layer. Each coating region covers individual metal wirings or specific areas, creating gaps between coating sections. This segmentation prevents moisture and impurity ions from forming continuous pathways through the coating layer, thereby reducing corrosion risk while maintaining protection where needed.

The coating layer is selectively applied only to specific regions where protection is most needed, such as areas with high electric potential differences or regions prone to moisture accumulation. By concentrating coating material in critical zones rather than applying it uniformly, the design provides targeted protection while minimizing overall moisture absorption and impurity ion entrapment.

The coating layer is segmented into discrete regions that do not form a continuous barrier between the metal wiring and the inorganic insulating film. This segmentation maintains good interfacial contact characteristics by allowing direct contact between the inorganic film and substrate in non-coated areas, while still providing insulation where coating is present.

The segmented coating structure acts as a selective intermediary that provides electrical insulation only where necessary, while allowing direct interaction between the inorganic insulating film and the driving substrate in other areas. This mediator approach maintains optimal interface contact characteristics while providing targeted insulation protection.

The coating layer is divided into multiple separate coating regions distributed across the circuit section and metal wiring areas. These segmented coating regions provide localized protection while the gaps between them prevent the formation of continuous moisture and impurity ion pathways, thereby reducing corrosion susceptibility while maintaining adequate protection coverage.

The coating is applied with varying density and coverage in different regions based on local requirements. Areas with higher corrosion risk or electric potential differences receive more extensive coating coverage, while other areas have reduced or no coating. This local quality approach optimizes the balance between protection coverage and corrosion prevention.