Auxiliary Electrode Line Segmentation for OLED IR Drop and Shrinkage

The auxiliary electrode line is segmented into multiple first conductive patterns arranged in parallel, each with a reduced contact area to the second electrode. This segmentation allows the electrical connection function to be distributed across multiple smaller contact points, while each individual contact point maintains sufficient heat transfer capability without causing localized overheating or insufficient curing.

The first conductive patterns are designed with specific local geometric characteristics (width, spacing, and contact area) that optimize the local heat transfer properties. By controlling the dimensions and arrangement of these patterns, the patent achieves uniform heat distribution across the wire region during the organic layer curing process, preventing the uneven thickness and shrinkage caused by poor heat transfer.

The auxiliary electrode line is divided into multiple separate first conductive patterns instead of a single continuous wide pattern. This segmentation creates gaps between the patterns that serve as channels for gas escape during the curing process, preventing gas accumulation and out-gassing into the organic electroluminescent layer while still maintaining adequate current conduction through the parallel arrangement.

The harmful effect of gas trapping is eliminated by extracting or removing the continuous conductive structure and replacing it with discrete segmented patterns. This extraction of the continuous structure creates the necessary void spaces for gas removal while preserving the electrical function through the distributed conductive patterns.

The auxiliary electrode line is segmented into multiple narrower first conductive patterns instead of a single wide pattern. This segmentation reduces the line width of each individual pattern, thereby improving heat transfer to the organic layer and ensuring sufficient curing, while the parallel arrangement of multiple patterns collectively maintains low electrical resistance to prevent IR drop.

Multiple narrow first conductive patterns are merged in parallel to achieve the electrical performance of a wide conductor. By combining several smaller conductive elements, the patent achieves both low electrical resistance (through parallel conduction paths) and good heat transfer (through smaller line widths that more effectively conduct heat to the organic layer).