Patent · US Active

Composite LED modules

US8017955B2 · kind B2 · utility

70Cited by

7References

18Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Lingli Wang · Chengdu, CN
Koen Van Os · Eindhoven, NL
Johannes Petrus Maria Ansems · Hulsel, NL

Key dates

Filing date	Nov 15, 2005
Grant date	Sep 13, 2011
Priority date	—
Expiry date	Mar 9, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/856
WIPO fieldSemiconductors
WIPO sectorElectrical engineering

Abstract

A composite multi-color light emitting diode device includes a first light emitting diode unit and a second light emitting diode unit that is arranged on top of the first light emitting diode unit for emitting two different wavelengths of electromagnetic radiation. A third light emitting diode unit may be arranged on top of the second light emitting diode unit, thereby providing a stack of three light emitting diode units. Alternatively, the third light emitting diode unit may be arranged on the first light emitting diode unit, thereby providing two light emitting diode units side-by-side on top of the first light emitting diode unit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.