Light emitting device comprising a light scattering material layer

Abstract

A light emitting device comprising: a substrate; a plurality of LED chips on a front face of the substrate; a photoluminescence material layer comprising broadband green to red photoluminescence material that is in contact with and covers each of the plurality of LED chips; and a light scattering layer comprising particles of light scattering material that is in contact with and covers the photoluminescence material layer; wherein there is no photoluminescence material layer on a back face of the substrate; and wherein, when the device is in an off-state, the color of the light scattering layer resembles the color of the light scattering material.

Dependencies are inferred from the claim text.