SOLID-STATE LIGHT EMITTING DEVICES AND SIGNAGE WITH PHOTOLUMINESCENCE WAVELENGTH CONVERSION AND PHOTOLUMINESCENT COMPOSITIONS THEREFOR

摘要

A photoluminescent composition ("phosphor ink") comprises a suspension of particles of a phosphor material capable of exciting at least one blue light (380 nm to 480 nm) in a light transmissive liquid binder, wherein at least one phosphor material The weight load is in the range of 40% to 75%. The binder may be an ultraviolet cure, a thermoset, a solvent based, or a combination thereof, and may include a polymer resin; Monomeric resins, acrylics, silicones, or fluoropolymers. The composition may further comprise particles of a light reflecting material suspended in a liquid binder. A photoluminescence wavelength conversion component using the composition; A solid state light emitting device; A luminescent sidewall surface, and a luminescent sidewall, are disclosed.