Patent ID: 8900710

Claim:
A light-emitting device comprising a light-emitting element and a molded part, wherein the light-emitting element comprises a gallium nitride compound semiconductor having an emission peak wavelength of 430 nm or longer; the molded part comprising a thermosetting epoxy resin composition in the cured state, the epoxy resin composition comprising (A) a reaction product obtained through reaction of a triazine derived epoxy resin with an acid anhydride in an epoxy group equivalent to acid anhydride group equivalent ratio from 0.6 to 2.0, (B) an internal parting agent, (C) a reflective agent including titanium dioxide, (D) an inorganic filler, (E) a curing catalyst, and (F) an antioxidant; wherein the triazine derived epoxy resin in component (A) is a 1,3,5-triazine nucleus derived epoxy resin, wherein the triazine derived epoxy resin, acid anhydride, and antioxidant (F) are pre-mixed to obtain the reaction product; wherein the internal parting agent (B) comprises glycerol monostearate having a melting point of 50 to 70° C. wherein the molded part forms a side surface or a bottom surface of a recess in which a light-emitting element is disposed, and the molded part has a high reflectance so as to reduce transmission of light from the light-emitting element into the surface, wherein the molded part has a reflectance of at least 70% at a wavelength of 430 nm or longer, and wherein the internal parting agent (B) is present in an amount of 0.2 to 5.0% by weight based on the total weight of the composition.