Phosphor sheet-forming resin composition

摘要

A phosphor sheet-forming resin composition uses a low-cost resin material having high light fastness and low visible light absorption and is capable of providing a phosphor sheet at low cost with deterioration of a phosphor due to moisture being suppressed. The phosphor sheet-forming resin composition contains a film-forming resin composition and a powdery phosphor that emits fluorescence when irradiated with excitation light. The film-forming resin composition contains a hydrogenated styrene-based copolymer, and uses a sulfide-based phosphor as the phosphor. Examples of the hydrogenated styrene-based copolymer include hydrogenated products of styrene-ethylene-butylene-styrene block copolymers. CaS:Eu is used as a preferred sulfide-based phosphor.

主权项

1. A phosphor sheet-forming resin composition comprising a film-forming resin composition and a powdery phosphor that emits fluorescence when irradiated with excitation light, wherein
the film-forming resin composition contains a hydrogenated styrene-based copolymer, the phosphor contains a sulfide-based phosphor, and the hydrogenation ratio is 50% or higher in the hydrogenated styrene-based copolymer.