Stacked Pixel Electrode Structure for Small-Pixel Display Uniformity

The patent transitions from a planar capacitor structure to a three-dimensional stacked structure by placing multiple conductive layers (first conductive layer, second conductive layer, third conductive layer) at different vertical positions. This dimensional change allows the capacitor to accumulate charge in the vertical direction rather than only in the horizontal plane, significantly increasing storage capacitance within the same pixel area and enabling higher display resolution.

The patent implements a nested structure where the second conductive layer is positioned between the first and third conductive layers, with the second organic layer and first organic layer forming insulating barriers. This nested arrangement of conductive and organic layers creates multiple capacitor units within a compact vertical space, maximizing capacitance density without increasing horizontal footprint.

By introducing multiple conductive layers at different vertical levels (first, second, and third conductive layers), the patent creates a three-dimensional voltage distribution network. This allows voltage to be more uniformly distributed throughout the pixel structure, compensating for the reduced pixel size and maintaining stable voltage levels across the display.

The patent uses composite structures combining multiple conductive layers with organic insulating layers (first organic layer, second organic layer). This composite material approach creates a more uniform electrical field distribution and improves voltage stability while maintaining the compact pixel structure required for high resolution.

The patent addresses light-shielding by adding vertical depth to the structure through multiple stacked layers. The third conductive layer and associated organic layers provide additional light-shielding capability in the vertical dimension, compensating for the reduced horizontal area available for light-shielding structures in smaller pixels.

The conductive layers in the patent serve multiple functions: they act as electrodes for capacitance storage, provide voltage distribution, and simultaneously function as light-shielding structures. This multi-functionality allows the same structural elements to address multiple problems (capacitance, voltage uniformity, and light-shielding) without requiring separate dedicated structures for each function.