Mini-LED Array Substrate Layout to Prevent Conductive Layer Shorts

The patent transitions from planar 2D layout to 3D stacked architecture by arranging conductive layers in multiple vertical levels. The first conductive layer (signal lines) and second conductive layer (power lines) are separated in the thickness direction, allowing compact area utilization while preventing short circuits through vertical spatial isolation. This dimensional transition enables both high-density integration and electrical isolation.

The patent implements nested conductive layers where the second conductive layer is positioned above the first conductive layer in a stacked configuration. Each layer is nested within the overall substrate structure with proper spacing, allowing multiple conductive elements to coexist in a compact volume while maintaining electrical isolation through the vertical nesting arrangement.

Instead of separating conductive layers horizontally which would waste area, the patent utilizes the vertical dimension (thickness direction) to achieve separation. The first and second conductive layers are stacked at different heights with isolation layers in between, preventing short circuits while maintaining high area utilization through efficient vertical space exploitation.

The patent employs thin film isolation layers (first and second isolation layers) between conductive layers to achieve electrical separation. These thin film structures provide effective insulation while occupying minimal space, enabling reliable short circuit prevention without significantly compromising area utilization.

The patent segments the conductive structure into distinct first and second conductive layers separated by isolation layers. This segmentation approach simplifies manufacturing by allowing each layer to be processed independently with clear process boundaries, reducing the risk of fabrication defects compared to monolithic overlapping structures while maintaining high device integration.

The patent introduces isolation layers as intermediary structures between the first and second conductive layers. These intermediary layers serve as process buffers that simplify alignment and reduce manufacturing complexity, enabling high device integration while minimizing fabrication defects through improved process control.

The patent extracts the isolation function into separate first and second isolation layers that are distinct from the conductive layers. This extraction approach simplifies the overall structure by clearly separating functional elements (conductive vs. insulating), making the vertical stack easier to manufacture and analyze while effectively preventing short circuits.

The isolation layers serve multiple functions simultaneously: they provide electrical insulation between conductive layers, act as process boundaries for manufacturing, and serve as structural spacers for vertical positioning. This multi-functionality reduces overall structural complexity by consolidating multiple requirements into single elements.