OLED Panel Conductive Grid for Luminous Uniformity

The anode is segmented into two functional parts: a transparent electrode (ITO or AZO) that provides basic conductivity and transparency, and a metal grids layer with grid structure that provides additional horizontal conduction pathways. The grid structure divides the anode into multiple conductive regions connected through the grid, enabling current to reach the central region more effectively and reducing horizontal resistance while maintaining manufacturing simplicity

The anode uses a composite structure combining transparent conductive oxide materials (ITO/AZO) with metallic ink-based conductive materials. The metal grids layer is formed by screen-printing metallic ink containing conductive particles, creating a composite electrode system that leverages the transparency of oxides and the high conductivity of metals to achieve both ease of manufacture and improved luminous uniformity

The large-size anode is segmented into multiple conductive regions through the metal grids layer, which creates a network of horizontal conduction pathways across the entire display area. This segmentation allows current to be distributed uniformly across large distances by providing multiple parallel paths from the edge to the center, effectively reducing the impact of large panel size on horizontal resistance and maintaining luminous uniformity

The metal grids layer introduces an additional dimensional network structure on top of the planar transparent electrode. This grid structure adds horizontal conduction pathways in both x and y directions, creating a two-dimensional network that efficiently distributes current across the entire large display area, overcoming the limitation of single-direction or point-source current injection