Visible Light Sensing Structure for Off-Angle Display Communication

The patent applies curvature by transforming the planar photosensitive film layers into a three-dimensional protrusion structure. The photosensitive film layers are configured to form a protrusion that extends toward the light signal source, with the protrusion having a curved or rounded top surface. This curved structure enables the device to receive light signals from multiple angles effectively, solving the problem of signal reception deterioration when the light source deflects, while maintaining manufacturing simplicity through conventional thin-film deposition techniques on patterned substrates

The patent transitions from a two-dimensional planar structure to a three-dimensional protrusion structure by adding vertical dimension. The photosensitive film layers are arranged in a laminated configuration that forms a protrusion extending in the vertical direction toward the light source. This dimensional transformation allows the device to maintain low structural complexity while achieving enhanced signal reception capability from multiple angles, as the protrusion creates multiple light paths and increases the effective receiving area

The patent applies local quality by creating a protrusion structure where the photosensitive film layers are concentrated in a specific three-dimensional region rather than being uniformly distributed in a planar configuration. The protrusion is positioned at a specific location on the substrate and has a specific height and cross-sectional shape, creating localized optical properties that enhance signal reception. This localized structural modification maintains ease of manufacture through standard photolithography and thin-film deposition while significantly improving communication quality at various deflection angles