White light emitting device

Details White light emitting device White light emitting device

2007-03-22

2009-10-27

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S483000, C313S498000, C313S505000, C313S506000, C252S30140R, C428S690000, C428S917000

Reexamination Certificate

active

07608994

ABSTRACT:
A high quality white light emitting device suitable for miniaturization. The white light emitting device according to the present invention includes a substrate and a light emitting structure composed of an n-semiconductor layer, an active layer and a p-semiconductor layer. The light emission structure emits first emission light. The white light emitting device also includes a wavelength-converting film for absorbing and converting the first emission light to second emission light of another wavelength. The wavelength-converting film is made of europium-silicate.

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patent: 2005/0269582 (2005-12-01), Mueller et al.
patent: 2006/0065900 (2006-03-01), Hsieh et al.
patent: 2007/0228931 (2007-10-01), Kim et al.
patent: 2008/0128735 (2008-06-01), Yoo et al.
patent: 2004-363343 (2004-12-01), None
patent: 2006-5367 (2006-01-01), None
Korean Office Action, with English translation, Korean Patent Application No. KR 10-2006-0026039, mailed Jul. 27, 2007.

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