Backlit Display Coating with Interference Pigments for Dynamic Opacity

The patent applies a transparent coating containing effect pigments (such as pearlescent pigments, interference pigments, or metallic flake pigments) that change their optical properties based on lighting conditions. Without backlighting, the coating appears opaque or reflective, hiding the mask. With backlighting switched on, the coating becomes transparent, allowing the mask and information to be visible. This resolves the contradiction by making the coating's transparency dynamic rather than fixed.

The patent changes the optical parameters of the coating by controlling the backlighting state. The coating is designed to have different optical properties (opaque vs. transparent) depending on the presence or absence of backlighting. This parameter change allows the system to achieve both high light transmission when needed and information hiding when needed, resolving the contradiction between these two opposing requirements.

The patent uses composite coating materials that combine effect pigments (such as pearlescent or interference pigments) with transparent binders. These composite materials provide both the desired hiding power when backlighting is off and sufficient transparency when backlighting is on. The composite nature of the coating allows it to exhibit dual optical properties that neither metal pigments alone nor transparent pigments alone could achieve.

The patent employs effect pigments that exhibit color and transparency changes based on lighting conditions and viewing angles. These pigments appear opaque or reflective without backlighting, providing hiding power, but become transparent when backlighting is applied. This dynamic color and transparency change resolves the contradiction between hiding power and transparency.

The patent replaces the static screen-printed mask with a dynamic light source configuration that can be electronically controlled. The light source can be programmed to illuminate different areas, change intensity, and vary the displayed information dynamically. This dynamic approach allows the same physical structure to display different information types and patterns without requiring physical mask changes, thus resolving the contradiction between information control and information variability.

The patent replaces the mechanical screen-printed mask system with an electronic light control system. Instead of using a physical mask with fixed openings, the system uses electronic control of the light source to define and vary the information display. This substitution of mechanical control with electronic control enables flexible, programmable information display while maintaining precise control over what information is transmitted.

The patent uses composite coating materials that integrate multiple functional properties into a single layer. The coating contains effect pigments, transparent binders, and optional absorption pigments in a unified composite structure. This composite approach achieves the desired optical performance (opacity without backlighting, transparency with backlighting) without requiring multiple separate physical layers, thus reducing manufacturing complexity while maintaining optical effectiveness.

The patent merges multiple functional components (effect pigments, binders, absorption pigments) into a single integrated coating layer. This merging of components achieves the dual optical performance of opacity and transparency control within one layer, eliminating the need for complex multilayer structures and simplifying the manufacturing process while maintaining the desired optical effects.