Phosphor composition, phosphor sheet, phosphor sheet laminate, LED chip using them, LED package, and method for producing the same

摘要

A phosphor composition containing a phosphor, a matrix resin, and metal compound particles, wherein the metal compound particles have a refractive index of 1.7 or more and an average particle diameter. 1 to 50 nm, the average refractive index N1 of the metal compound particles and the matrix resin satisfies the following relationship with the refractive index N2 of the phosphor, and the metal compound particles are grafted: Provided is a phosphor composition capable of producing a sheet by a single coating process and improving the luminance of an LED package to which the sheet is applied using the phosphor composition or the like. 0.20 ≧ | N1-N2 |