Patent ID: 8974852
Filing Date: 2015-03-10
Classification: C09K,H01L,H05B,Y10T

Abstract:
1. A method of manufacturing a light-emitting device comprising: disposing an LED chip on a supporting member; dispersing a fluorescent substance having a particle diameter ranging from 20 to 45 μM in a material of a light-transmitting member at a concentration of 40 to 60 wt % to obtain a raw material for a fluorescent layer; dripping the raw material for the fluorescent layer on the LED chip while lowering the viscosity of the raw material, thereby forming a coated layer; and thermally curing the coated layer to form the fluorescent layer having a thickness ranging from 80 to 240 μm, wherein a surface of the fluorescent layer is in contact with an external atmosphere and has recesses and projections that correspond to an arrangement of the particles of the fluorescent substance.