Touch Display Panel Lead Routing for Reduced Frame Width

The patent introduces compensation lines that extend in directions different from the primary lead routing path. These compensation lines provide alternative current paths by utilizing unused spatial dimensions in the lead structure, allowing the main lead to be shortened while maintaining electrical connectivity through the compensation pathways.

The lead structure is divided into multiple functional segments: primary leads for main current flow and compensation lines for alternative current paths. This segmentation allows independent optimization of each segment - the primary lead can be minimized for compactness while compensation lines ensure reliability, resolving the contradiction between frame width and electrical connectivity.

The patent employs asymmetric lead routing where compensation lines are strategically added only to specific leads that require length adjustment. Rather than making all leads equally complex, the asymmetric approach adds routing elements only where necessary to balance lengths, improving touch functionality while minimizing overall routing complexity.

Different routing strategies are applied to different leads based on their specific requirements. Leads requiring length adjustment receive compensation lines with specific geometric configurations, while other leads maintain simpler routing. This local quality approach ensures uniform touch functionality across all leads without uniformly increasing complexity throughout the entire lead system.