Display Panel Grid Electrode Layout for Uniform Common Voltage

The common electrode layer is segmented into multiple independent common electrodes (first common electrode, second common electrode, third common electrode, fourth common electrode) arranged in a grid pattern. Each common electrode is independently connected to power lines, allowing separate voltage control. This segmentation resolves the contradiction by maintaining structural simplicity while achieving uniform voltage distribution through multiple controlled zones.

The solution transitions from a single-plane common electrode to a three-dimensional grid structure with power lines and common electrodes arranged in multiple layers and directions. The first and second power lines extend in a first direction while the third and fourth power lines extend in a second direction perpendicular to the first, creating a spatial grid that uniformly distributes voltage across the display panel.

Multiple functions are merged into the power line structure: the first and second power lines serve both as voltage supply paths and as structural elements that define the grid pattern. The power lines are integrated with the common electrode connections, eliminating the need for separate voltage distribution components. This merging reduces overall device complexity while achieving uniform voltage distribution.

The power lines serve multiple functions simultaneously: they provide voltage to common electrodes, act as structural support for the grid arrangement, and define the spatial organization of the display panel. The first power lines and second power lines work together to create a universal voltage distribution network that serves all light emitting units uniformly.