Patent ID: 8076437
Filing Date: 2011-12-13
Classification: C08G,H01L

Abstract:
1. A LED light-emitting device comprising: a light-emitting element; and an encapsulant material sealing the light-emitting element, wherein the encapsulant material having one or more kinds of units given by the following formula (1) and a refractive index of 1.55 to 1.65: where R is a hydrogen atom, alkyl group or phenyl group, Y is an alkyl group of which the carbon number is 1 to 6 or an alkyloxy group of which the carbon number is 1 to 6 and Z is one of functional groups given by the following formulas (2), (3), and (5) to (7) in which Z can be bonded to Y in all possible positions: