Pixel Structure Keel Overlapping Data Lines Aperture Ratio

The patent merges the data line and shielding metal into a combined structure where the shielding metal is positioned directly beneath the data line. This overlapping arrangement allows a single structural element to serve both as a signal conductor and as a shielding component, thereby reducing the total opaque area while maintaining effective signal shielding.

The patent transitions from a planar arrangement where data lines and shielding metal are separate to a three-dimensional overlapping configuration. By positioning the shielding metal in a lower layer directly beneath the data line, the solution utilizes vertical stacking to achieve both shielding and aperture ratio improvement simultaneously.

The patent designs the shielding metal structure to serve multiple functions: it provides signal shielding for the data line, acts as a light shielding line for display quality, and eliminates the need for separate additional light shielding structures. This multi-functional design reduces manufacturing complexity and cost while maintaining display quality.

The patent extracts the light shielding function from separate light shielding lines and integrates it into the shielding metal structure that already exists for signal shielding purposes. By removing the need for additional dedicated light shielding lines, the solution reduces manufacturing steps and costs.