LIGHT-EMITTING DIODE PACKAGES WITH MATERIALS FOR REDUCING EFFECTS OF ENVIRONMENTAL INGRESS

Solid-state lighting devices including light-emitting diodes (LEDs) and more particularly LED packages with materials for reducing effects of environmental ingress are disclosed. Reactive materials are provided within LED packages that preferentially absorb environmental ingress away from other pack...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Wilcox, Robert, Pertuit, Andre, Blakely, Colin, Sokol, Joseph G, Suich, David, Check, Michael
Format: Patent
Sprache:eng
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Zusammenfassung:Solid-state lighting devices including light-emitting diodes (LEDs) and more particularly LED packages with materials for reducing effects of environmental ingress are disclosed. Reactive materials are provided within LED packages that preferentially absorb environmental ingress away from other package elements, thereby extending operating lifetimes. Such reactive materials may be configured with redox potentials that are lower than the other package elements to more readily attract and react with environmental ingress that may enter LED packages under various operating environments. Arrangements of reactive materials are described relative to LED chips and corresponding electrical connections. Reactive materials may be formed as coatings, layers, pre-formed structures, and/or distributions of particles within LED packages.