Light emitting diode (LED) components and methods
Light emitting diode (LED) components and related methods are disclosed. LED components include a submount, at least one LED chip on a first surface of the submount, and a non-reflective, light permeable structure or dam. The light permeable dam can provide a component having a viewing angle that is greater than 115°. A method of providing an LED component includes providing a non-metallic submount, attaching at least one LED chip to a first surface of the submount, and dispensing a non-reflective, light permeable dam over the first surface of the submount about the at least one LED chip thereby providing a component having a viewing angle that is greater than 115°.
1. A light emitting diode (LED) component, comprising:
a submount;
a plurality of electrical traces disposed over a first surface of the submount;
at least one LED chip disposed over the first surface of the submount, wherein the at least one LED chip is electrically connected to one or more of the plurality of electrical traces; and
a non-reflective, light permeable dam disposed on the first surface of the submount and around the at least one LED chip thereby providing a component having a viewing angle that is greater than 115°, wherein the dam entirely covers the plurality of electrical traces such that the first surface is devoid of uncovered traces.
2. The component of claim 1 , wherein component comprises a viewing angle that is approximately 120° or more.
3. The component of claim 1 , wherein component comprises a viewing angle that is approximately 130° or more.
4. The component of claim 1 , wherein component comprises a viewing angle that is approximately 140° or more.
5. The component of claim 1 , wherein component comprises a viewing angle that is approximately 160° or more.
6. The component of claim 1 , wherein the non-reflective, light permeable dam extends only peripherally around the at least one LED chip.
7. The component of claim 1 , wherein a filler material is disposed between opposing surfaces of the dam.
8. The component of claim 7 , wherein the filler material comprises phosphor.
9. The component of claim 1 , wherein the dam is a silicone dam and further comprises one or more light-permeable binders or fillers, and wherein the one or more binders or fillers comprises fumed silica, silica gel, nanomaterials, ceramic nanoparticles, ceramic micro-particles, quantum dots, phosphor, ceramic fibers, non-ceramic fibers, or any combination thereof.
10. The component of claim 1 , wherein the submount comprises alumina, zirconia, or a mixture, composite or alloy thereof.
11. The component of claim 1 , further comprising a plurality of LED chips that are configured to collectively emit white light.
12. A light bulb incorporating the component of claim 1 .
13. A light emitting diode (LED) component, comprising:
a submount;
an array of LED chips disposed on a first surface of the submount;
a plurality of traces disposed on the first surface of the submount;
a non-reflective, light permeable dam disposed on the first surface of the submount about the plurality of LED chips thereby providing a component having a viewing angle that is greater than 115°, wherein the dam entirely covers the plurality of electrical traces such that the first surface is devoid of uncovered traces; and
a filler material disposed over the array of LED chips and between portions of the dam, wherein the dam and the filler material each comprise multiple, discrete layers of material.
14. The component of claim 13 , wherein the dam and the filler material each comprise two discrete layers of material.
15. The component of claim 13 , wherein the dam and the filler material each comprise three discrete layers of material.
16. The component of claim 13 , wherein the dam comprises at least one layer that is devoid of phosphor.
17. The component of claim 13 , wherein the filler material comprises at least one layer that is devoid of phosphor.
18. The component of claim 13 , wherein the dam comprises at least one layer that comprises phosphor.
19. The component of claim 13 , wherein the filler material comprises at least one layer that comprises phosphor.
20. The component of claim 13 , wherein component comprises a viewing angle that is approximately 120° or more.
21. The component of claim 13 , wherein component comprises a viewing angle that is approximately 140° or more.
22. The component of claim 13 , wherein the dam comprises silicone and one or more light-permeable binders or fillers.
23. The component of claim 22 , wherein the one or more binders or fillers comprises fumed silica, silica gel, nanomaterials, ceramic nanoparticles, ceramic micro-particles, quantum dots, phosphor, ceramic fibers, non-ceramic fibers, or any combination thereof.
24. The component of claim 22 , wherein the silicone is a dispensable silicone material.