Light emitting device exhibiting excellent heat resistance and good color reproducibility through fluorescent material arrangement

摘要

A light emitting device comprising: a base; a light emitting element arranged on a surface of the base; a first resin layer arranged to surround a side portion of the light emitting element and to be spaced apart from the side portion; and a second resin layer arranged on the surface of the base, the second resin layer being present at least on a top of the light emitting element, on a top of the first resin layer, and in an area between the light emitting element and the first resin layer, wherein the first resin layer comprises a light transmissive resin and a first fluorescent material, wherein the second resin layer comprises a light transmissive resin and a second fluorescent material, and wherein the second fluorescent material exhibits higher heat resistance than that of the first fluorescent material.

主权项

1. A light emitting device comprising:
a base; a light emitting element arranged on a surface of the base; a first resin layer arranged on the surface of the base to surround a side portion of the light emitting element and to be spaced apart from the side portion of the light emitting element, the first resin layer not being exposed to an external environment at an upper surface of the light emitting device; and a second resin layer arranged on the surface of the base, wherein the second resin layer is in contact with at least an upper surface of the light emitting element and an entirety of an uppermost surface of the first resin layer, wherein the second resin layer is disposed in an area between the light emitting element and the first resin layer, wherein the first resin layer comprises a light transmissive resin and a first fluorescent material that is excitable by at least part of light emitted by the light emitting element to emit light, wherein the second resin layer comprises a light transmissive resin and a second fluorescent material that is excitable by at least part of light emitted by the light emitting element to emit light, and wherein the second fluorescent material exhibits higher heat resistance than that of the first fluorescent material.