Display Device Coating Layer Impact Resistance

The patent applies composite materials by combining an organic base layer with inorganic filler particles (such as alumina, silica, or titania) to create a coating layer that provides both mechanical strength and impact resistance. This composite structure allows the display device to maintain thin overall thickness while the filler-reinforced coating layer compensates for the reduced structural support that would normally come from multiple thick functional layers.

The patent implements local quality by creating a coating layer with non-uniform filler distribution and varying thickness across different regions of the display panel. The coating layer is configured to provide enhanced protection in specific areas that require greater impact resistance, while maintaining thinner sections in areas where flexibility or other properties are prioritized, thus resolving the contradiction between overall thinness and localized strength requirements.

The patent applies universality by designing a single coating layer that simultaneously performs multiple functions: mechanical protection against impact, optical functions through light-transmissive fillers, electrical properties through conductive or shielded filler configurations, and thermal management capabilities. This multi-functional coating layer replaces what would traditionally require multiple separate functional layers, thereby reducing device complexity while maintaining comprehensive functional capabilities.

The patent uses composite materials with diverse filler types (light-transmissive, conductive, magnetic, or heat-resistant particles) dispersed in the organic base layer to enable a single coating layer to deliver multiple functional properties. By carefully selecting and combining different filler materials, the coating achieves optical transparency, electrical conductivity, magnetic shielding, or thermal resistance as needed, all within one integrated layer structure.