Flexible Display Panel Lead Segmentation for Bending Stress

The lead is divided into multiple segments by creating first hollow portions at different locations. These hollow portions act as segmentation points that allow the insulating layers to be connected at multiple discrete locations rather than continuously, distributing the mechanical stress during bending across multiple connection points and preventing separation.

The first hollow portions are strategically positioned at specific locations along the lead where bending stress is most likely to occur. By placing hollow portions at these critical locations, the insulating layers are connected at points that locally reinforce the bonding, providing enhanced strength exactly where it is needed during bending operations.

By segmenting the lead structure with hollow portions, the bonding strength is enhanced at multiple discrete connection points between insulating layers without requiring the entire lead structure to be overly rigid. This segmented approach allows localized reinforcement while maintaining overall flexibility.

The solution moves from a two-dimensional bonding interface to a three-dimensional structure by creating hollow portions that extend vertically through the lead. This vertical dimension provides additional bonding surfaces and connection points for the insulating layers, enhancing bonding strength without compromising the horizontal flexibility of the lead.