Patent ID: 9515239
Filing Date: 2016-12-06
CPC Classification: H01L

Claim Text:
1. A light-emitting device comprising: a photoluminescent layer extending parallel to a first plane, the photoluminescent layer emitting first light having a wavelength λ a light-transmissive layer, on the photoluminescent layer, extending parallel to the first plane, the light-transmissive layer transmitting the first light, wherein at least one of the photoluminescent layer and the light-transmissive layer includes a submicron structure comprising projections or recesses arranged parallel to the first plane, at least one of the photoluminescent layer and the light-transmissive layer has a light emitting surface parallel to the first plane, the first light being emitted from the light emitting surface, the submicron structure includes at least first directly adjacent two of the projections or the recesses, centers of which are separated from each other by a minimum distance D the submicron structure satisfies 0.8D