Patent ID: 8541802
Filing Date: 2013-09-24
Classification: H01L

Abstract:
1. A Light Emitting Diode (LED) assembly comprising: a substrate; a LED die disposed on the substrate, wherein the LED die defines a right rectangular prism (RRP) having four side faces, wherein a first peripheral side of the LED die lies in a first plane that is substantially coplanar with a first side face of the RRP, wherein a second peripheral side of the LED die lies in a second plane that is substantially coplanar with a second side face of the RRP, wherein a third peripheral side of the LED die lies in a third plane that is substantially coplanar with a third side face of the RRP, wherein a fourth peripheral side of the LED die lies in a fourth plane that is substantially coplanar with a fourth side face of the RRP; a first volume of a first luminescent material that is disposed entirely outside the RRP, wherein the first volume surrounds the RRP in a lateral dimension, wherein the first luminescent material comprises a first phosphor material capable of emitting light having a first peak wavelength longer than 620 nanometers, wherein the first volume comprises substantially no phosphor material capable of emitting light having a peak wavelength shorter than approximately 620 nanometers; and a second volume of a second luminescent material that is disposed at least in part above the LED die within the RRP, wherein the second luminescent material comprises a second phosphor material capable of emitting light having a second peak wavelength shorter than 620 nanometers, wherein the second volume comprises substantially no phosphor material capable of emitting light having a peak wavelength longer than approximately 620 nanometers.