Dual-Shading Layer Display Panel Light Leakage Prevention

The shading function is segmented into two separate layers: a first shading layer on the first substrate and a second shading layer on the second substrate. Each layer independently blocks light from data and scanning lines, ensuring that light leakage is prevented even if one layer is misaligned during cell-assembly. This segmentation resolves the contradiction by distributing the shading function across multiple components rather than relying on a single layer.

The dual shading layer structure serves as a pre-established protective measure against misalignment errors. By having redundant shading layers on both substrates before cell-assembly, the design compensates for potential positioning errors that occur during assembly, ensuring that at least one layer will effectively block light from the data and scanning lines.

The shading function is divided between two substrates, allowing each shading layer to be optimized for its specific position. This segmentation enables the shading layers to block light from data and scanning lines effectively without requiring excessive width on a single layer, thereby maintaining better overall transmittance.

The shading layers are positioned locally at the specific locations where data and scanning lines are present on each substrate. This localized shading approach ensures that light is blocked only where necessary (at the line positions) rather than across the entire display area, preserving transmittance in the pixel regions while preventing light leakage at the line positions.