KR20120048020A - 형광체, 발광 장치, 및 그를 사용한 액정 표시 장치 - Google Patents
형광체, 발광 장치, 및 그를 사용한 액정 표시 장치 Download PDFInfo
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Abstract
Description
도 2는 본 발명의 다른 바람직한 일례의 발광 장치(21)를 대략적으로 나타낸 단면도이다.
|
|
초기 | 5000시간 후 |
| 밝기(상대값) | 밝기(유지율) | |
| 실시예 1 | 109.8% | 90.3% |
| 비교예 1 | 100.0% | 70.6% |
| 조성 | 평균입도 (d1)(μm) |
50% D (μm) |
50% D/d1 | 600nm 흡수율(%) |
|
| 실시예 2 | Eu0.05Si11.50Al0.50O0.30N15.70 | 13.1 | 21.0 | 1.60 | 6.30 |
| 비교예 2 | Eu0.05Si11.95Al0.05O0.06N15.94 | 7.3 | 17.5 | 2.40 | 13.6 |
| 실시예 3 | Eu0.10Si11.00Al1.00O0.40N15.60 | 9.5 | 15.0 | 1.58 | 5.70 |
| 비교예 3 | Eu0.10Si11.90Al0.10O0.10N15.90 | 5.9 | 16.8 | 2.85 | 14.7 |
|
|
초기 | 5000시간 후 |
| 밝기(상대값) | 밝기(유지율) | |
| 실시예 2 | 110.8% | 91.6% |
| 비교예 2 | 100.0% | 72.1% |
| 실시예 3 | 109.0% | 90.9% |
| 비교예 3 | 100.0% | 71.3% |
|
|
초기 | 5000시간 후 | ||||
| 밝기 (상대값) |
x | y | 밝기 (유지율) |
x | y | |
| 실시예 4 | 108.5% | 0.295 | 0.280 | 92.5% | 0.294 | 0.278 |
| 비교예 4 | 100.0% | 0.296 | 0.280 | 74.8% | 0.290 | 0.268 |
11,21 : 발광 장치
12 : 발광 소자
13 : 파장 변환부
14 : 본 발명의 형광체 이외의 형광체
15 : 매질
Claims (12)
- 일반식 (A) : EuaSibAlcOdNe
(일반식 (A) 중 0.005≤a≤0.4, b+c=12, d+e=16을 만족하는 수이다.)로 실질적으로 표시되고, 평균 입도(d1)(공기 투과법)가 9~16μm이고, 입도 분포에서의 메디안 직경 (50% D)이 12.5~35μm이고, 50% D/d1=1.4~2.2이고, 또한 600nm에 있어서의 흡수율이 8.0% 이하인 β형 SiAlON인, 2가의 유로퓸 활성화 산질화물 녹색계 발광 형광체. - 제1항에 있어서, 10μm≤d1≤13μm, 50% D/d1=1.6~2.0이고 600nm에 있어서의 흡수율이 7.0% 이하인, 형광체.
- 제1항에 있어서, 일반식 (A) 중, c≥0.3인, 형광체.
- 제1항에 있어서, 일반식 (A) 중, 0.01≤a≤0.2인, 형광체.
- 피크 파장이 430~480nm의 1차광을 발하는 질화갈륨계 반도체인 발광 소자와, 상기 1차광의 일부를 흡수하여 1차광의 파장보다도 긴 파장을 갖는 2차광을 발하는 파장 변환부를 구비한 발광 장치로서, 상기 파장 변환부는,
일반식 (A) : EuaSibAlcOdNe
(일반식 (A) 중 0.005≤a≤0.4, b+c=12, d+e=16을 만족하는 수이다.)로 실질적으로 표시되고, 평균 입도(d1) (공기 투과법)가 9~16μm이고, 입도 분포에서의 메디안 직경(50% D)이 12.5~35μm이고, 50% D/d1=1.4~2.2이고, 또한 600nm에 있어서의 흡수율이 8.0% 이하인 β형 SiAlON인, 2가의 유로퓸 활성화 산질화물 녹색계 발광 형광체를 포함하는, 발광 장치. - 제5항에 있어서, 형광체가, 10μm≤d1≤13μm, 50% D/d1=1.6~2.0이고 600nm에 있어서의 흡수율이 7.0% 이하인, 발광 장치.
- 제5항에 있어서, 일반식 (A) 중, c≥0.3인, 발광 장치.
- 제5항에 있어서, 일반식 (A) 중, 0.01≤a≤0.2인, 발광 장치.
- 제5항에 있어서,
일반식 (B) : (MI1-xEux) MIISiN3
(일반식 (B) 중 MI는 Mg, Ca, Sr 및 Ba로부터 선택되는 적어도 1종의 알칼리 토류 금속 원소를 나타내며, MII는 Al, Ga, In, Sc, Y, La, Gd 및 Lu로부터 선택되는 적어도 1종의 3가의 금속 원소를 나타내고, 0.001≤x≤0.10을 만족하는 수이다.)로 실질적으로 표시되는 2가의 유로퓸 활성화 질화물 적색계 발광 형광체를 파장 변환부에 포함하는, 발광 장치. - 제5항에 있어서, 일반식 (B) 중, MII는 Al, Ga 및 In으로부터 선택되는 적어도 1종의 원소인, 발광 장치.
- 제5항에 기재된 발광 장치를 점광원으로서 복수 포함하는 백라이트 광원 장치.
- 액정 패널과,
액정 패널의 배면에 배치된 제11항에 기재된 백라이트 광원 장치를 구비하는, 액정 표시 장치.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPJP-P-2010-003058 | 2010-01-08 | ||
| JP2010003058 | 2010-01-08 | ||
| PCT/JP2010/072684 WO2011083671A1 (ja) | 2010-01-08 | 2010-12-16 | 蛍光体、発光装置およびそれを用いた液晶表示装置 |
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| Publication Number | Publication Date |
|---|---|
| KR20120048020A true KR20120048020A (ko) | 2012-05-14 |
| KR101378813B1 KR101378813B1 (ko) | 2014-03-27 |
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| KR1020127006888A Active KR101378813B1 (ko) | 2010-01-08 | 2010-12-16 | 형광체, 발광 장치, 및 그를 사용한 액정 표시 장치 |
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| Country | Link |
|---|---|
| US (2) | US8709283B2 (ko) |
| EP (1) | EP2468836A4 (ko) |
| JP (2) | JP5589002B2 (ko) |
| KR (1) | KR101378813B1 (ko) |
| CN (1) | CN102656248B (ko) |
| BR (1) | BR112012016731A2 (ko) |
| TW (1) | TWI468495B (ko) |
| WO (1) | WO2011083671A1 (ko) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013163720A (ja) * | 2012-02-09 | 2013-08-22 | Denki Kagaku Kogyo Kk | 蛍光体及び発光装置 |
| JP2013163721A (ja) * | 2012-02-09 | 2013-08-22 | Denki Kagaku Kogyo Kk | 蛍光体及び発光装置 |
| JP2013163738A (ja) * | 2012-02-09 | 2013-08-22 | Denki Kagaku Kogyo Kk | 蛍光体及び発光装置 |
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| JP5367218B2 (ja) | 2006-11-24 | 2013-12-11 | シャープ株式会社 | 蛍光体の製造方法および発光装置の製造方法 |
| CN102790164B (zh) | 2008-03-03 | 2016-08-10 | Ge磷光体技术有限责任公司 | 发光装置 |
| CN102656248B (zh) * | 2010-01-08 | 2014-07-16 | 夏普株式会社 | 荧光体、发光装置及使用它的液晶显示装置 |
| US9399731B2 (en) * | 2012-12-14 | 2016-07-26 | Denka Company Limited | Phosphor, method for producing the same, and luminescent device using the same |
| KR102353443B1 (ko) | 2014-12-22 | 2022-01-21 | 삼성전자주식회사 | 산질화물계 형광체 및 이를 포함하는 백색 발광 장치 |
| WO2017122800A1 (ja) * | 2016-01-15 | 2017-07-20 | デンカ株式会社 | 蛍光体および発光装置 |
| CA3072755C (en) * | 2017-08-18 | 2024-04-30 | Thorlabs, Inc. | Broadband light source based on crystalline phosphor |
| US11781064B2 (en) | 2019-04-23 | 2023-10-10 | Denka Company Limited | Phosphor powder and light-emitting device |
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| JP3609709B2 (ja) | 2000-09-29 | 2005-01-12 | 株式会社シチズン電子 | 発光ダイオード |
| CA2489237A1 (en) | 2002-06-13 | 2003-12-24 | Cree, Inc. | Semiconductor emitter comprising a saturated phosphor |
| KR100609830B1 (ko) | 2003-04-25 | 2006-08-09 | 럭스피아 주식회사 | 녹색 및 적색형광체를 이용하는 백색 반도체 발광장치 |
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| EP2463354B1 (en) | 2005-12-08 | 2017-03-29 | National Institute for Materials Science | Phosphor, Process for producing the same, and luminescent device |
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| WO2008004640A1 (en) | 2006-07-05 | 2008-01-10 | Ube Industries, Ltd. | Sialon-base oxynitride phosphors and process for production thereof |
| JP2008120938A (ja) * | 2006-11-14 | 2008-05-29 | Sharp Corp | 蛍光体およびその製造方法、ならびに半導体発光装置および画像表示装置 |
| WO2008062781A1 (en) | 2006-11-20 | 2008-05-29 | Denki Kagaku Kogyo Kabushiki Kaisha | Fluorescent substance and production method thereof, and light emitting device |
| JP5367218B2 (ja) | 2006-11-24 | 2013-12-11 | シャープ株式会社 | 蛍光体の製造方法および発光装置の製造方法 |
| WO2009008250A1 (ja) * | 2007-07-09 | 2009-01-15 | Sharp Kabushiki Kaisha | 蛍光体粒子群およびそれを用いた発光装置 |
| JP2009019163A (ja) * | 2007-07-13 | 2009-01-29 | Sharp Corp | 発光装置用蛍光体粒子集合体、発光装置、および液晶表示用バックライト装置 |
| JP2009092253A (ja) | 2007-10-04 | 2009-04-30 | Masaji Furukawa | 二重煙突燃焼器具 |
| KR101213298B1 (ko) * | 2007-10-10 | 2012-12-18 | 우베 고산 가부시키가이샤 | β-사이알론 형광체 분말 및 그 제조 방법 |
| JP2009167338A (ja) * | 2008-01-18 | 2009-07-30 | Sharp Corp | 波長変換部材およびこれを備える発光装置、ならびに蛍光体 |
| CN102656248B (zh) * | 2010-01-08 | 2014-07-16 | 夏普株式会社 | 荧光体、发光装置及使用它的液晶显示装置 |
| JP4740379B1 (ja) | 2010-02-25 | 2011-08-03 | 電気化学工業株式会社 | β型サイアロン蛍光体、その用途及びβ型サイアロン蛍光体の製造方法 |
-
2010
- 2010-12-16 CN CN201080054430.1A patent/CN102656248B/zh active Active
- 2010-12-16 WO PCT/JP2010/072684 patent/WO2011083671A1/ja not_active Ceased
- 2010-12-16 JP JP2011548943A patent/JP5589002B2/ja active Active
- 2010-12-16 EP EP10842184.3A patent/EP2468836A4/en not_active Ceased
- 2010-12-16 KR KR1020127006888A patent/KR101378813B1/ko active Active
- 2010-12-16 US US13/500,803 patent/US8709283B2/en active Active
- 2010-12-16 BR BR112012016731A patent/BR112012016731A2/pt not_active Application Discontinuation
- 2010-12-27 TW TW99146167A patent/TWI468495B/zh active
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2014
- 2014-04-09 US US14/248,664 patent/US9496463B2/en active Active
- 2014-07-22 JP JP2014149016A patent/JP2014209660A/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013163720A (ja) * | 2012-02-09 | 2013-08-22 | Denki Kagaku Kogyo Kk | 蛍光体及び発光装置 |
| JP2013163721A (ja) * | 2012-02-09 | 2013-08-22 | Denki Kagaku Kogyo Kk | 蛍光体及び発光装置 |
| JP2013163738A (ja) * | 2012-02-09 | 2013-08-22 | Denki Kagaku Kogyo Kk | 蛍光体及び発光装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5589002B2 (ja) | 2014-09-10 |
| EP2468836A1 (en) | 2012-06-27 |
| BR112012016731A2 (pt) | 2018-05-15 |
| JP2014209660A (ja) | 2014-11-06 |
| WO2011083671A1 (ja) | 2011-07-14 |
| US20140218658A1 (en) | 2014-08-07 |
| EP2468836A4 (en) | 2014-07-30 |
| CN102656248B (zh) | 2014-07-16 |
| TWI468495B (zh) | 2015-01-11 |
| US8709283B2 (en) | 2014-04-29 |
| CN102656248A (zh) | 2012-09-05 |
| US20120194762A1 (en) | 2012-08-02 |
| TW201134922A (en) | 2011-10-16 |
| KR101378813B1 (ko) | 2014-03-27 |
| JPWO2011083671A1 (ja) | 2013-05-13 |
| US9496463B2 (en) | 2016-11-15 |
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