JP2014224247A - 蛍光体及びそれを含む発光素子パッケージ - Google Patents
蛍光体及びそれを含む発光素子パッケージ Download PDFInfo
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Abstract
【解決手段】実施形態は、黄色波長領域の光を放出するシリケート(silicate)系の第1蛍光体と;緑色波長領域の光を放出するナイトライド(nitride)系の第2蛍光体と;赤色波長領域の光を放出するナイトライト系の第3蛍光体と;を含み、青色波長の光によって励起されて前記第1蛍光体乃至第3蛍光体が放出する光が合成されたスペクトルの半値幅は110nm以上である蛍光体を提供する。
【選択図】図3B
Description
120、220 発光構造物
300、400、500、600、700 発光素子パッケージ
900 映像表示装置
Claims (23)
- 黄色波長領域の光を放出するシリケート(silicate)系の第1蛍光体と、
緑色波長領域の光を放出するナイトライド(nitride)系の第2蛍光体と、
赤色波長領域の光を放出するナイトライト系の第3蛍光体とを含み、
前記第1蛍光体乃至第3蛍光体が放出する光が合成されたスペクトルの半値幅は110nm以上である、蛍光体。 - 前記第1蛍光体の重量比は60%〜75%であり、前記第2蛍光体の重量比は20%〜35%であり、前記第3蛍光体の重量比は2%〜3%である、請求項1に記載の蛍光体。
- 前記第1蛍光体は、(Ba、Sr)2SiO4:Euを含む、請求項1又は2に記載の蛍光体。
- 前記第2蛍光体は、La3Si6N11:Ceを含む、請求項1又は2に記載の蛍光体。
- 前記第3蛍光体は、(Sr、Ca)AlSiN3:Euを含む、請求項1又は2に記載の蛍光体。
- 前記第1蛍光体、第2蛍光体及び第3蛍光体から放出された光が白色光をなし、前記白色光をなす緑色光の色度座標(chromaticity coordinates)は、CIEx:0.296〜0.316であり、CIEy:0.606〜0.626である、請求項1又は2に記載の蛍光体。
- 前記第1蛍光体、第2蛍光体及び第3蛍光体から放出された光が白色光をなし、前記白色光をなす赤色光の色度座標は、CIEx:0.624〜0.644であり、CIEy:0.322〜0.342である、請求項1又は2に記載の蛍光体。
- 前記第1蛍光体、第2蛍光体及び第3蛍光体から放出された光が白色光をなし、前記白色光をなす青色光の色度座標は、CIEx:0.142〜0.162であり、CIEy:0.044〜0.064である、請求項1又は2に記載の蛍光体。
- 前記第1蛍光体は、青色波長領域の光によって励起されて、553nm乃至558nmにピーク波長を有し、86nm乃至88nmの半値幅を有する光を放出する、請求項1又は2に記載の蛍光体。
- 前記第2蛍光体は、青色波長領域の光によって励起されて、535nmにピーク波長を有し、半値幅が107nmである光を放出する、請求項1又は2に記載の蛍光体。
- 前記第3蛍光体は、青色波長領域の光によって励起されて、625nmにピーク波長を有し、半値幅が81nmである光を放出する、請求項1又は2に記載の蛍光体。
- 互いに電気的に分離された第1電極及び第2電極と、
前記第1電極及び第2電極にそれぞれ電気的に接続され、第1波長領域の光を放出する少なくとも一つの発光素子と、
前記発光素子から放出された青色波長領域の光によって励起されて第2波長領域の光を放出し、黄色波長領域の光を放出するシリケート系の第1蛍光体、緑色波長領域の光を放出するナイトライド系の第2蛍光体、及び赤色波長領域の光を放出するナイトライト系の第3蛍光体を含み、前記第1蛍光体乃至第3蛍光体が放出する光が混合されたスペクトルの半値幅は110nm以上である蛍光体と、を含む、発光素子パッケージ。 - 前記第1蛍光体の重量比は60%〜75%であり、前記第2蛍光体の重量比は20%〜35%であり、前記第3蛍光体の重量比は2%〜3%である、請求項12に記載の発光素子パッケージ。
- 前記第1蛍光体は、(Ba、Sr)2SiO4:Euを含む、請求項12又は13に記載の発光素子パッケージ。
- 前記第2蛍光体は、La3Si6N11:Ceを含む、請求項12又は13に記載の発光素子パッケージ。
- 前記第3蛍光体は、(Sr、Ca)AlSiN3:Euを含む、請求項12又は13に記載の発光素子パッケージ。
- 黄色波長領域の光を放出する第1蛍光体と、
緑色波長領域の光を放出する第2蛍光体と、
赤色波長領域の光を放出する第3蛍光体とを含み、
前記第1蛍光体、第2蛍光体及び第3蛍光体は窒素を含み、青色波長領域の光によって励起されて前記第1蛍光体乃至第3蛍光体が放出する光が合成されたスペクトルの半値幅は119nm以上である、蛍光体。 - 前記第1蛍光体は、(Ba、Sr)Si2(O、Cl)2N2:Euを含む、請求項17に記載の蛍光体。
- 前記第2蛍光体は、La3Si6N11:Ceを含む、請求項17に記載の蛍光体。
- 前記第3蛍光体は、(Sr、Ca)AlSiN3:Euを含む、請求項17に記載の蛍光体。
- 前記第1蛍光体、第2蛍光体及び第3蛍光体から放出された光が白色光をなし、前記白色光をなす緑色光の色度座標(chromaticity coordinates)は、CIEx:0.302〜0.322であり、CIEy:0.583〜0.603である、請求項17に記載の蛍光体。
- 前記第1蛍光体、第2蛍光体及び第3蛍光体から放出された光が白色光をなし、前記白色光をなす赤色光の色度座標は、CIEx:0.633〜0.653であり、CIEy:0.324〜0.344である、請求項17に記載の蛍光体。
- 前記第1蛍光体、第2蛍光体及び第3蛍光体から放出された光が白色光をなし、前記白色光をなす青色光の色度座標は、CIEx:0.143〜0.163であり、CIEy:0.039〜0.059である、請求項17に記載の蛍光体。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130056027A KR20140135556A (ko) | 2013-05-16 | 2013-05-16 | 형광체 및 이를 포함하는 발광소자 패키지 |
KR10-2013-0056027 | 2013-05-16 | ||
KR1020130117219A KR102131309B1 (ko) | 2013-10-01 | 2013-10-01 | 형광체 및 이를 포함하는 발광소자 패키지 |
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US20140339584A1 (en) | 2014-11-20 |
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EP2803715B1 (en) | 2020-02-26 |
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JP6542509B2 (ja) | 2019-07-10 |
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