Multiple LED light source lens design in an integrated package

Light emitting diode (LED) packages and LED displays utilizing the LED packages are disclosed. LED packages can have a plurality of cavities with each having one or more LEDs. The LEDs can be individually controllable so that the LED package emits the desired color combination of light from the pack...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Pang, Chak Hau Charles, Lau, Yue Kwong Victor, Sheng, JuZuo, Hussell, Christopher P
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Light emitting diode (LED) packages and LED displays utilizing the LED packages are disclosed. LED packages can have a plurality of cavities with each having one or more LEDs. The LEDs can be individually controllable so that the LED package emits the desired color combination of light from the package. The LED packages are arranged with an encapsulant over the cavities that shape the LED package emission to a wide angle or pitch. Some of the LED packages can have three cavities, while others can have four or more cavities. The packages can comprise an encapsulant that forms lenses over the cavities and continues beyond the cavities to cover surfaces of the LED package body. The body can include different anchoring features to improve package reliability by anchoring the encapsulant to the body. One embodiment of an LED display according to the present invention comprises a plurality of LED packages, at least some having a plurality of cavities. Each of the packages comprises a lens over each cavity to produce an emission of the LEDs that has a wider angle compared to the emission without the lens. A potting material can be included between adjacent ones of the LED packages and overlaps the package encapsulant to further improve reliability.