Method and Apparatus for a Flat Top Light Source

摘要

A light-emitting device and method for manufacturing the device are disclosed. In one embodiment, the light-emitting device comprises a flat substrate and an encapsulation layer formed above the flat substrate. The top portion of the encapsulation layer is flat and the encapsulation layer is divided into a high density layer and a low density layer. The high density layer is formed from a wavelength-converting material precipitated on one side of the encapsulation layer. In the low density layer, the wavelength-converting material exists in particle form suspended within the encapsulation layer.