EXCITATION LIGHT-CONTROLLED FLUORESCENT BODY WAVELENGTH CONVERSION WHITE LIGHT-EMITTING ELEMENT, AND LIGHT-EMITTING DEVICE COMPRISING SAME

WIPO Patent Application WO/2019/182195

A1

The present invention relates to a white light-emitting element and a light-emitting device for adjusting the mixing ratio of a fluorescent body, which generates white light in a high color rendering white light-emitting diode (LED) element excited by ultraviolet and violet light and configured by a fluorescent body wavelength conversion scheme, wherein the ultraviolet and violet light, which is excitation light, is completely removed from the white light. The present invention provides a fluorescent body wavelength conversion white light-emitting element having a wide color temperature range (1900K to 7000K) with controlled excitation light, the white light-emitting element comprising: a semiconductor LED chip for emitting light of ultraviolet and violet wavelength regions having an emission peak at 350 nm to 430 nm inclusive; and a fluorescent body layer distributed in a transparent resin layer which is excited by an excitation wavelength of the violet LED chip so as to emit light, wherein the fluorescent body layer comprises: a first fluorescent body having an emission peak wavelength at 440 to 455 nm; and a second fluorescent body having an emission peak wavelength at 460 to 470 nm.

AN JONG UK (KR)
BAE JEONG BIN (KR)
SHIM JAI GON (KR)

PCT/KR2018/006298

September 26, 2019

June 01, 2018

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ALLIX CO LTD (KR)
AN JONG UK (KR)

H01L33/50; H01L27/15

WO2013069435A1

2013-05-16

KR20170134241A	2017-12-06
KR100706750B1	2007-04-11
KR20170068728A	2017-06-20
KR20110085206A	2011-07-27

DAHAI INTERNATIONAL PATENT & LAW FIRM (KR)

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