Adhesive Optical Structure for LED Light Interference Reduction

An adhesive structure with optical properties is introduced as an intermediary between light-emitting diodes and the substrate. This adhesive structure acts as a mediator to manage light propagation, reducing light interference between adjacent light-emitting elements while maintaining effective light emission. The adhesive structure's refractive index and optical characteristics are specifically designed to control light behavior in the gap regions.

The adhesive structure is selectively positioned in specific regions between light-emitting elements rather than uniformly across the entire device. This local application targets the specific areas where light interference occurs, applying optical control properties where needed while leaving other regions unaffected. The adhesive structure's optical characteristics are optimized for the local light interference conditions.

The adhesive structure serves multiple functions simultaneously: it provides mechanical adhesion between the substrate and light-emitting diodes, manages optical properties to reduce light interference, and enhances color purity through its specific refractive index characteristics. By combining these functions into a single component, the design avoids adding separate dedicated structures for each function, thereby limiting the increase in device complexity.

The adhesive structure merges the mechanical bonding function with the optical management function into a single integrated component. Rather than having separate adhesive layers and optical control structures, the design combines these functions into one adhesive structure that performs both mechanical and optical roles, simplifying the overall device architecture.