WAVELENGTH CONVERTING SUBSTANCE AND LIGHT EMITTING DEVICE AND ENCAPSULATING MATERIAL COMPRISING THE SAME

摘要

A wavelength converting substance comprises a wavelength converting material particle and a transparent layer on the wavelength converting material particle. The wavelength converting substance is a material possessing both wavelength converting and light scattering properties. Thus, when the wavelength converting substance is used in a light emitting device, the brightness is improved and the light mixing is more uniform than that of a traditional package. A light emitting device and an encapsulating material comprising the wavelength converting substance are also disclosed.