LED Package Reflective Layer Structure for Wide-Angle Brightness

The patent segments the package structure into distinct functional layers: a reflective layer with reflective elements for light redirection, an optical layer for light modification, and a light blocking layer for light management. This segmentation allows each layer to independently optimize its function, achieving high brightness in a compact volume by systematically managing light paths rather than relying on a single monolithic structure

The patent utilizes three-dimensional spatial arrangement of light paths by positioning the reflective layer to redirect light from the LED chip into the optical layer, which then directs light through the sidewalls. This dimensional approach to light management enables enhanced brightness and viewing angle without increasing package volume, as the light is efficiently routed through available spatial dimensions within the compact structure

The package is segmented into functional layers where the optical layer specifically addresses light distribution. This layer is configured to emit light through the sidewalls of the package, creating a broader viewing angle. The segmentation allows the optical layer to be optimized independently for wide-angle light emission while the overall package maintains compact dimensions

The patent achieves expanded light emitting angle by utilizing the sidewall surfaces as additional light emission dimensions. Rather than relying solely on top surface emission, the structure redirects light through the vertical sidewalls, effectively adding dimensional pathways for light exit. This enables viewing from multiple angles simultaneously without increasing the horizontal package footprint

The patent merges multiple light management functions into an integrated layered structure. The reflective layer, optical layer, and light blocking layer are combined in a compact stack configuration where each layer performs its function while occupying minimal space. This merging approach achieves high luminous intensity through coordinated light reflection and diffusion, while the integrated design prevents excessive complexity by maintaining a systematic, space-efficient arrangement

The patent employs thin-film reflective layers and light blocking layers that provide substantial optical control with minimal thickness. These thin film structures deliver high light reflection and blocking performance without adding significant volume or structural complexity, as the optical functionality is achieved through material properties rather than bulky mechanical structures