Patent ID: 9506608
Filing Date: 2016-11-29
CPC Classification: C09K,F21K,H01L,Y02B

Claim Text:
1. A light emitting structure comprising: a plurality of light emitting diodes (LEDs) generating a visible primary light; a light-passing support structure, not forming part of the LEDs, overlying the plurality of LEDs, the support structure comprising an array of light-passing protruding features, the support structure having flat surfaces between the protruding features, the protruding features having a height above the flat surfaces between the protruding features, wherein the support structure, including the protruding features, does not contain any wavelength conversion material; and a first layer containing wavelength conversion particles deposited at least over the flat surfaces of the support structure between the protruding features so as to surround the protruding features in the array, such that a bottom surface of the first layer is flat, a top surface of the first layer is flat, and the top and bottom surfaces are parallel to each other, wherein the first layer has a thickness less than the height of the protruding features so that the protruding features protrude through the first layer across the first layer, wherein there are no additional wavelength conversion particles covering portions of the protruding features that are not already covered by the first layer; wherein a first portion of the primary light passes through the protruding features without being wavelength-converted, and a second portion of the primary light is converted by the wavelength conversion particles to a secondary light in the areas between the protruding features, and wherein a combination of the secondary light and the primary light passing though the protruding features contributes to an overall visible color emission of the light emitting structure.