Patent ID: 8637883

Claim:
A light emitting diode (LED) device, comprising: an LED chip on a mount surface, said LED chip comprising sidewalls and a textured light emission surface, said LED chip having a first index of refraction; a reflective element opposite said textured light emission surface such that said reflective element is between said LED chip and said mount surface; a spacer layer disposed on said LED chip and covering said light emission surface and said sidewalls, said spacer layer having a second index of refraction that is smaller than said first index of refraction; and at least one functional layer comprising a wavelength conversion layer disposed on said spacer layer, said wavelength conversion layer comprising a binder material embedded with a plurality of phosphor particles, said phosphor particles having a third index of refraction that is larger than said second index of refraction, wherein said binder material has a substantially similar index of refraction to said phosphor particles; wherein said spacer layer and said functional layer are conformal to said LED chip.