Monolithic multi-color matrix emitter with patterned phosphor layer
AssigneeLumileds LLC
InventorsToni Lopez, Marcel Rene Bohmer
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Abstract
A lighting device is disclosed that includes a plurality of light emitting diodes arranged in an array, a plurality of trenches disposed between and optically isolating the light emitting diodes, and a patterned converter layer disposed over an array surface formed by light emitting surfaces of the light emitting diodes and upper surfaces of the trenches, the patterned converter layers including a first region having a first converter and a second region having a second converter different from the first converter, the first region and second region disposed over different areas of the array surface.
Claims19
A lighting device comprising:
- a plurality of light emitting diodes arranged in an array;
- a plurality of trenches disposed between and optically isolating the light emitting diodes;
- and
- a patterned converter layer disposed over an array surface formed by light emitting surfaces of the light emitting diodes and upper surfaces of the trenches, the patterned converter layers comprising a first region having a first converter and a second region having a second converter different from the first converter, the first region disposed over and in contact with one of the light emitting surfaces, and the second region disposed over, in contact with, and covering the entire upper surface of one of the trenches.
A lighting device comprising:
- a plurality of light emitting diodes arranged in an array, each light emitting diode comprising a light emitting surface;
- and
- a patterned converter layer disposed over and in contact with the light emitting surfaces of the light emitting diodes, the patterned converter layers comprising a first region having a first converter and a second region having a second converter different from the first converter, and at least one first region and at least one second region are disposed over each light emitting surface.
A lighting device comprising:
- a plurality of light emitting diodes, each light emitting diode comprising a light emitting surface;
- a plurality of first electrical contacts each electrically connected one of the light emitting diodes and configured to activate light emission from a first portion of each of the light emitting diode;
- a plurality of second electrical contacts each electrically connected to one of the light emitting diodes and configured to activate light emission from a second portion of each of the light emitting diode;
- and
- a patterned converter layer disposed over the light emitting surfaces of the light emitting diodes, the patterned converter layers comprising a plurality of first regions having a first converter and disposed over the first portions of the light emitting diodes, and a plurality of second regions having a second converter different from the first converter and disposed over the second portion of the light emitting diodes.
Dependencies are inferred from the claim text.