KR100764148B1 - 시트상 형광체와 그 제조방법 및 이를 이용한 발광장치 - Google Patents
시트상 형광체와 그 제조방법 및 이를 이용한 발광장치 Download PDFInfo
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- KR100764148B1 KR100764148B1 KR1020060004760A KR20060004760A KR100764148B1 KR 100764148 B1 KR100764148 B1 KR 100764148B1 KR 1020060004760 A KR1020060004760 A KR 1020060004760A KR 20060004760 A KR20060004760 A KR 20060004760A KR 100764148 B1 KR100764148 B1 KR 100764148B1
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Abstract
Description
소결시간 (hours) | 공극률 |
2 | 8 % |
4 | 5 % |
8 | 2 % |
Claims (10)
- 청색/근자외선 계열의 빛을 흡수하여 가시광을 내는 광원용으로 사용되는 형광체에 있어서,상기 형광체는 형광체 단독 또는 형광체의 발광휘도를 조절하기 위한 광투광성 세라믹 소재와 혼합되어 시트(sheet)상으로 성형 및 소결된 것을 특징으로 하는 시트상 형광체.
- 제1항에 있어서,상기 시트상 형광체는 그 표면의 적어도 어느 한 면 이상에 그루브(groove)가 형성된 것을 특징으로 하는 시트상 형광체.
- 제2항에 있어서,상기 그루브는 일방향으로 평행하게 또는 양방향으로 직교하여 메쉬형상으로 형성된 것을 특징으로 하는 시트상 형광체.
- 제1항에 있어서,상기 광투과성 세라믹 소재는 MgO, CaO, SrO, BaO, SiO2, GeO2, SiN, SiAlON, Si3N4, Al2O3, Ga2O3, Y2O3, TiO2, ZrO2, CeO2, Sm2O3, BaTiO3, BaTa2O6, Ta2O3, Sr(Zr, Ti)O3, PbTiO3, WO3, V2O3, In2O3-SnO2으로 이루어진 군으로부터 선택된 하 나 이상이고, 시트상 형광체의 전체 중량을 기준으로 0 내지 60중량%의 중량비로 혼합되는 것을 특징으로 하는 시트상 형광체.
- 청색/근자외선 계열의 빛을 흡수하여 가시광을 내는 광원용으로 사용되는 형광체의 제조방법에 있어서,ⅰ)상기 형광체 원료를 혼합 및 분쇄하는 단계:ⅱ)상기 분쇄된 혼합물을 환원분위기하에서 1100 내지 1600℃에서 소성시켜 파우더 형광체를 합성하는 소성단계:ⅲ)상기 1차 소성된 혼합물을 재분쇄하는 단계:ⅳ)상기 재분쇄한 파우더 형광체를 몰드에 넣고 압력을 가하여 시트(sheet)상으로 성형하는 단계 및;ⅴ)상기 성형된 형광체를 환원분위기하에서 1100 내지 1600℃에서 소결시키는 단계를 포함하는 시트상 형광체의 제조방법.
- 제5항에 있어서,상기 형광체는 (Ba, Sr, Ca)2SiO4 :Eu2+, (Y, Gd)3(Al, Ga)5O12:Ce3+, (Tb, Gd)3(Al, Ga)5O12:Ce3+, (Ba, Sr, Ca)3SiO5:Eu2+, (Ba, Sr, Ca)MgSi2O6: Eu2+, Mn2+, (Ba, Sr, Ca)3MgSi2O8: Eu2+, Mn2+ 및 (Ba, Sr, Ca)MgSiO4: Eu2+,Mn2+ 로 구성된 군으로부터 선택된 1종 이상인 것을 특징으로 하는 시트상 형광체의 제조방법.
- 제5항 또는 제6항에 있어서,상기 ⅳ)성형 단계를 수행하기 전 MgO, CaO, SrO, BaO, SiO2, GeO2, SiN, SiAlON, Si3N4, Al2O3, Ga2O3, Y2O3, TiO2, ZrO2, CeO2, Sm2O3, BaTiO3, BaTa2O6, Ta2O3, Sr(Zr, Ti)O3, PbTiO3, WO3, V2O3, In2O3-SnO2으로 이루어진 군으로부터 선택된 하나 이상의 광투과성 세라믹 소재를 시트상 형광체의 총중량을 기준으로 0 내지 60중량% 범위가 되도록 형광체에 추가하여 혼합하는 단계를 추가적으로 포함한 것을 특징으로 하는 시트상 형광체의 제조방법.
- 제5항에 있어서,상기 ⅳ)성형 단계 또는 ⅴ)소결단계 후 시트상 형광체의 적어도 일면상에 그루브를 형성하는 단계를 추가적으로 포함하는 것을 특징으로 하는 시트상 형광체의 제조방법.
- 제8항에 있어서,상기 그루브는 일방향으로 평행하게 또는 양방향으로 직교하여 메쉬형상으로 형성된 것을 특징으로 하는 시트상 형광체의 제조방법.
- 제1항 내지 제4항 중 어느 한 항의 시트상 형광체를 청색/근자외선 LED상에 접합하여 제조한 발광장치.
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PCT/KR2007/000250 WO2007083907A1 (en) | 2006-01-17 | 2007-01-16 | Sheet type phosphors, preparation method thereof, and light emitting devices using these phosphors |
US12/161,282 US20090002810A1 (en) | 2006-01-17 | 2007-01-16 | Sheet Type Phosphors, Preparation Method Thereof, And Light Emitting Devices Using These Phosphors |
CNA2007800025312A CN101370903A (zh) | 2006-01-17 | 2007-01-16 | 片式荧光体、其制备方法以及使用这些荧光体的发光器件 |
JP2008551176A JP2009524235A (ja) | 2006-01-17 | 2007-01-16 | シート状系抗体、その製造方法、及びそれを用いた発光装置 |
EP07700975A EP1979434A1 (en) | 2006-01-17 | 2007-01-16 | Sheet type phosphors, preparation method thereof, and light emitting devices using these phosphors |
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St.27 status event code: N-4-6-H10-H13-oth-PC1903 Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE Not in force date: 20150929 |
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P22-X000 | Classification modified |
St.27 status event code: A-4-4-P10-P22-nap-X000 |