Dense-luminescent-materials-coated violet LEDs
First Claim
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1. An apparatus comprising:
- a submount;
at least one LED die attached to the submount, wherein the perimeter of the LED die defines a plurality of sides; and
a conformal coating over the plurality of sides to define a thickness on each of the sides, and comprising at least one luminescent material;
wherein at least one of the LED die or the thickness of the conformal coating on the sides of the LED die is configured such that light emitted from each of the sides has a chromaticity with a Du′
v′
that varies by no more than 0.015 from the Du′
v′
of the light of the other sides.
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Abstract
Techniques for fabricating and using arrays of violet-emitting LEDs coated with densely-packed-luminescent-material layers together with apparatus and method embodiments thereto are disclosed.
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Citations
15 Claims
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1. An apparatus comprising:
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a submount; at least one LED die attached to the submount, wherein the perimeter of the LED die defines a plurality of sides; and a conformal coating over the plurality of sides to define a thickness on each of the sides, and comprising at least one luminescent material; wherein at least one of the LED die or the thickness of the conformal coating on the sides of the LED die is configured such that light emitted from each of the sides has a chromaticity with a Du′
v′
that varies by no more than 0.015 from the Du′
v′
of the light of the other sides. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification