Light emitting device package with a coating layer
AssigneeLumileds LLC
InventorShu Li
Life of this patent
Estimating the term…
Abstract
A light emitting device comprising a coating layer is disclosed. A reflective layer is on a base. A structure on the reflective layer has a first opening there through. The first opening exposes a surface of the reflective layer. A light emitting diode (LED) is on the exposed surface of the reflective layer. A coating layer is on the exposed surface of the reflective layer, at least a portion of the structure inside the first opening, and at least a portion of the LED. A second opening is in the coating layer. The second opening exposes a portion of the reflective layer. A conductive element electrically couples the LED to the base through the portion of the reflective layer exposed by the second opening in the coating layer.
Claims12
A light emitting device comprising:
- a reflective layer on a base;
- a structure on the reflective layer having a first opening there through, the first opening exposing a surface of the reflective layer;
- a light emitting diode (LED) on the exposed surface of the reflective layer;
- a transparent coating layer on the exposed surface of the reflective layer, at least a portion of the structure inside the first opening, and at least a portion of the LED;
- a second opening in the transparent coating layer, the second opening exposing a portion of the reflective layer;
- and
- a conductive element electrically coupling the LED to the base through the portion of the reflective layer exposed by the second opening in the transparent coating layer.
A method for manufacturing a light-emitting device, comprising:
- molding an electrically insulating compound on a first lead frame and a second lead frame to form a base;
- forming a reflective material on a respective surface of the first lead frame and the second lead frame to form a reflective layer of the base;
- mounting a light-emitting diode (LED) on the reflective layer;
- applying a liquid solution material containing precursors on the reflective layer, and at least a portion of the LED;
- heating at least the liquid solution material containing precursors to form a transparent coating layer;
- and
- forming an opening in the coating layer, the opening exposing a portion of the reflective layer.
Dependencies are inferred from the claim text.