Patent ID: 8937328
Filing Date: 2015-01-20
Classification: C09K,H01L

Abstract:
1. A light emitting device comprising: a light emitting element emitting light having a wavelength of 250 nm to 500 nm; and a green fluorescent layer disposed on the light emitting element, the green fluorescent layer including phosphor particles and resin, the phosphor particles being dispersed in the resin, the phosphor particles having an average particle diameter of 12 μm or more, the phosphor particles being plate-shaped particles having two side planes facing each other, the phosphor particles having a composition expressed by the following equation (1), wherein in the equation (1), M is an element selected from IA group elements, IIA group elements, IIIA group elements, IIIB group elements except Al, rare-earth elements, and IVB group elements, and x1, y, z, u, and w satisfy the following inequalities simultaneously, such that each of the following inequalities is satisfied by the choice of values of the identified paramaters within the noted ranges: 0<x1<1, −0.1<y<0.3, −3<z≦1, −3<u−w≦1.5), −2<u, w<21.