LIGHT EMITTING DEVICE - SEOUL OPTO DEVICE CO LTD

Title:

LIGHT EMITTING DEVICE

Document Type and Number:

WIPO Patent Application WO/2005/109532

Kind Code:

A1

Abstract:

Disclosed herein is a light emitting device including one or more light emitting diodes to primarily emit light having different wavelengths in the wavelength range of ultraviolet rays and/ or blue light, and a wavelength-conversion means to convert the primary light into secondary light in the visible light wavelength range. The light emitting device of the current invention has a high color temperature of 2000 to 8000 K or 10000 K and a high color rendering index of 90 or more, thus easily realizing desired emission on the color coordinate system. Therefore, the lighting emitting device is applicable to mobile phones, notebook computers, and keypads or backlight units for various electronic products, and, in particular, automobiles and exterior and interior lighting fixtures.

Inventors:

LEE CHUNG-HOON (KR)
ROTH GUNDULA (DE)
TEWS WALTER (DE)

Application Number:

PCT/KR2005/001287

Publication Date:

November 17, 2005

Filing Date:

May 03, 2005

Export Citation:

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Assignee:

SEOUL OPTO DEVICE CO LTD (KR)
LEE CHUNG-HOON (KR)
ROTH GUNDULA (DE)
TEWS WALTER (DE)

International Classes:

H01L33/50; H01L25/075; (IPC1-7): H01L33/00

Foreign References:

JPH09153644A	1997-06-10
US6686691B1	2004-02-03
JP2004127988A	2004-04-22
JP2003224306A	2003-08-08
JP2002359403A	2002-12-13

Other References: