Array Substrate Layout Reduces Coupling Capacitance

The patent introduces touch control signal lines as intermediary elements positioned between the data signal lines and pixel electrodes. This intermediary structure serves multiple functions: it maintains compact layout while reducing coupling capacitance between data lines and pixel electrodes, and simultaneously enables touch control functionality. The touch control signal lines act as a mediating layer that resolves the conflict between compactness and electrical isolation.

The patent utilizes multi-layer film structures to arrange data signal lines and touch control signal lines in different vertical layers. This dimensional separation allows the signal lines to extend in the same horizontal direction without interfering with each other, reducing coupling capacitance while maintaining compact overall layout. The vertical layering provides additional spatial dimension to resolve the contradiction between proximity and electrical isolation.

The patent positions data signal lines at substantially equal distances from pixel electrodes, creating uniform electrical conditions. This equipotential arrangement ensures that coupling capacitance remains consistent across different pixel locations, preventing picture display quality degradation. The uniform spacing creates equivalent electrical environments for all pixel-electrode interactions.

The touch control signal lines serve multiple functions simultaneously: they provide touch control functionality, act as spacers to maintain uniform distances between data signal lines and pixel electrodes, and contribute to overall layout flexibility. This multi-functional design allows the system to achieve both layout adaptability and coupling capacitance uniformity without compromise.