NITRIDE-BASED RED LIGHT-EMITTING PHOSPHOR IN RGB (RED-GREEN-BLUE) LIGHTING SYSTEM

Japanese Patent JP2015143364

A

PROBLEM TO BE SOLVED: To provide a nitride-based red light-emitting phosphor in a red, green and blue (RGB) lighting system.SOLUTION: There is provided a red light-emitting phosphor which is based on a CaAlSiNtype compound activated with divalent europium. In one embodiment, there is provided the nitride-based red light-emitting compound which has an impurity oxygen content of less than about 2 percentage by weight and contains a solid solution of a calcium and strontium compound (Ca, Sr) AlSiN:Eu. In another embodiment, there is provided the nitride-based red light-emitting compound in which a (Ca,Sr)AlSiN:Eucompound further contains halogen in an amount ranging from about 0 to about 2 atomic percentage (In the formula, the halogen may be fluorine (F), chlorine (Cl) or any combination thereof). In further another embodiment, there is provided the nitride-based red light-emitting compound in which at least half of halogen is distributed on a 2-fold coordinated nitrogen (N2) site compared to a 3-fold coordinated nitrogen (N3) site.

JP2019134150	LIGHT EMITTING DEVICE
WO/2004/081142	PHOSPHOR, METHOD FOR PRODUCING PHOSPHOR, PHOSPHOR PASTE AND PLASMA DISPLAY PANEL
JP5254418	Lighting equipment and headlights

LIU SHENGFENG
TAO DEJIE
YUAN XIANGLONG
LI YI QUN

JP2015040587A

August 06, 2015

March 02, 2015

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INTEMATIX CORP

C09K11/64; H01L33/50

JP2006063214A	2006-03-09
JP2009094231A	2009-04-30
JP2006008721A	2006-01-12
JP2006274265A	2006-10-12
JP2010018771A	2010-01-28
JP2006124501A	2006-05-18
JP2005239985A	2005-09-08
JP2004010786A	2004-01-15

US20060065878A1	2006-03-30
EP1630219A2	2006-03-01

Kenji Sugimura
Tsukanaka Tetsuo

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