High efficiency white light emitting diode and method for...

Details High efficiency white light emitting diode and method for... High efficiency white light emitting diode and method for...

2007-02-06

2010-06-15

Williams, Joseph L (Department: 2889)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

Reexamination Certificate

active

07737635

ABSTRACT:
A light source module of a white light emitting diode comprising a blue LED, a packaging substrate, wherein the blue LED is mounted on and electrically connected to the packaging substrate, a cap layer, enclosing the blue LED, wherein the cap layer includes a mixture of silicon and phosphor blend at ratio of 1:0.2-0.5, and a protective layer over the cap layer.

REFERENCES:
patent: 5683823 (1997-11-01), Shi et al.
patent: 2002/0105266 (2002-08-01), Juestel et al.
patent: 2003/0214233 (2003-11-01), Takahashi et al.

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