LCD Pixel Electrode Protrusions for White Bruising

The patent applies local quality by adding protrusions specifically at the edge regions of the pixel electrode where reverse alignment occurs. The protrusions are localized structural modifications that create different electric field characteristics only at the problematic edge areas, while the central region maintains its original wide-viewing-angle properties. This allows the electrode to simultaneously achieve wide viewing angle and prevent white bruising at edges.

The protrusions are designed to preemptively counteract the reverse electric field formation at electrode edges. By extending the electrode structure outward at the edges, the design creates a preliminary geometric configuration that prevents the formation of reverse-aligned liquid crystal regions before they can occur during normal operation, thereby eliminating white bruising.

The protrusions create a preliminary geometric configuration that counteracts high-voltage-induced reverse alignment. When high voltage is applied for fast response, the protrusions ensure that the electric field direction at electrode edges remains consistent with the central region, preventing the formation of reverse-aligned liquid crystal regions that would cause spotting even at elevated voltages.

The patent changes the geometric parameters of the pixel electrode by adding protrusions, which modifies the electric field distribution characteristics. This parameter change ensures that even when voltage increases for faster response, the electric field direction at edges remains controlled and consistent, preventing reverse alignment and spotting issues.