KR101399652B1 - 실리케이트 형광체, 이를 포함하는 백색 발광 소자 - Google Patents
실리케이트 형광체, 이를 포함하는 백색 발광 소자 Download PDFInfo
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- KR101399652B1 KR101399652B1 KR1020070119311A KR20070119311A KR101399652B1 KR 101399652 B1 KR101399652 B1 KR 101399652B1 KR 1020070119311 A KR1020070119311 A KR 1020070119311A KR 20070119311 A KR20070119311 A KR 20070119311A KR 101399652 B1 KR101399652 B1 KR 101399652B1
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Abstract
Description
Claims (15)
- 하기 화학식 1의 화합물로 표시되는 실리케이트 형광체:<화학식 1>Lia-xAxSrb-y-z-lByEuzClSic-mDmOd-nEn상기 식에서, A는 Na1+, K1+, Rb1+, 및 Cs1+로 이루어진 군으로부터 선택된 하나 이상이고, B는 Mg2+, Ca2+, Ba2+ 및 Zn2+로 이루어진 군으로부터 선택된 하나 이상이고, C는 Sc3+, Y3+, La3+, Gd3+, Ce3+, Pr3+, Nd3+, Sm3+, Tb3+, Dy3+, Ho3+, Er3+, Tm3+, Yb3+, Lu3+ 및 Bi3+로 이루어진 군으로부터 선택된 하나 이상이고, D는 B3+, Al3+, Ga3+, In3+ 및 Tl3+로 이루어진 군으로부터 선택된 하나 이상이고, E는 F-, Cl-, Br-, 및 I-로 이루어진 군으로부터 선택된 하나 이상이고, 1.5≤a≤2.5, 1.0≤b≤2.5, 1.0≤c≤2.5, 3≤d≤5, 0≤x<2, 0≤y<1, 0<z≤0.1, 0<l≤0.1, 0<m≤0.1 및 0≤n≤1이다.
- 제1항에 있어서, 상기 화학식 1에서 C는 Ce이고, D는 Al인 것을 특징으로 하는 실리케이트 형광체.
- 제1항에 있어서, 상기 z의 범위가 0<z+l≤0.05인 것을 특징으로 하는 실리케이트 형광체.
- 제1항에 있어서, 상기 화학식 1의 화합물이 Li2Sr1-p-qEupCeqSi1-qAlqO4 이고, 0<p+q≤0.05인 것을 특징으로 하는 실리케이트 형광체.
- UV 발광 다이오드 (LED: light emitting diode); 및제1항 내지 제4항 중 어느 한 항의 실리케이트 형광체을 포함하는 백색 발광 소자.
- 제5항에 있어서, 상기 UV-LED는 여기 광원이 자외선, 근자외선 영역의 전자기파인 것을 특징으로 하는 백색 발광 소자.
- 제6항에 있어서, 상기 발광 다이오드의 여기 광원이 380 내지 460nm 범위의 피크 파장 대역을 갖는 것을 특징으로 하는 백색 발광 소자.
- 제7항에 있어서, 청색 형광체, 녹색 형광체 및 적색 형광체 중에서 선택된 하나 이상을 더 포함하는 것을 특징으로 하는 백색 발광 소자.
- 제8항에 있어서, 상기 청색 형광체는 (Sr,Ba,Ca)5(PO4)3Cl:Eu2 +; BaMg2Al16O27:Eu2+; Sr4Al14O25:Eu2 +; BaAl8O13:Eu2 +; BaMgAl10O17:Eu2 + , Sr2Si3O8·2SrCl2:Eu2+; Ba3MgSi2O8:Eu2 + 및 (Sr,Ca)10(PO4)6·nB2O3:Eu2 +로 이루어진 군으로부터 선택된 하나 이상인 것을 특징으로 하는 백색 발광 소자.
- 제8항에 있어서, 상기 녹색 형광체는 (Ba,Sr,Ca)2SiO4:Eu2 +; Ba2MgSi2O7:Eu2 +; Ba2ZnSi2O7:Eu2+; BaAl2O4:Eu2 +; SrAl2O4:Eu2 +; BaMgAl10O17:Eu2 +, Mn2 + ; 및 BaMg2Al16O27:Eu2+,Mn2+로 이루어진 군으로부터 선택된 하나 이상인 것을 특징으로 하는 백색 발광 소자.
- 제8항에 있어서, 상기 적색 형광체는 CaAlSiN3:Eu2 +; Sr2Si5N8:Eu2 +; (Sr,Ba,Ca)2P2O7:Eu2+,Mn2+; (Ba,Mg)SiO4:Eu2 +,Mn2 +; (Ba,Ca)Ga2O7:Eu2 +,Mn2 +; Ba2MgSi2O7:Eu2+,Mn2+ 및 3.5MgO·0.5MgF2·GeO4:Mn4 +로 이루어진 군으로부터 선택된 하나 이상인 것을 특징으로 하는 백색 발광 소자.
- 제11항에 있어서, 상기 실리케이트 형광체의 방출 스펙트럼 피크 파장이 565 내지 600 nm이고, 상기 청색 형광체의 방출 스펙트럼 피크 파장이 420 내지 480 nm이고, 상기 녹색 형광체의 방출 스펙트럼 피크 파장이 510 내지 560 nm이고, 상기 적색 형광체의 방출 스펙트럼 피크 파장이 610 내지 670 nm인 것을 특징으로 하는 백색 발광 소자.
- 청색 발광 다이오드 (LED: light emitting diode); 및제1항 내지 제4항 중 어느 한 항의 실리케이트 형광체을 포함하는 백색 발광 소자.
- 제13항에 있어서, 상기 발광 다이오드의 여기 광원이 420 내지 480nm 범위의 파장 대역을 갖는 것을 특징으로 하는 백색 발광 소자.
- 제5항 내지 제14항 중 어느 한 항에 있어서, 상기 백색 발광 소자는 신호등, 통신 기기의 광원, 디스플레이 장치의 백라이트 또는 조명용인 것을 특징으로 하는 백색 발광 소자.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070119311A KR101399652B1 (ko) | 2007-11-21 | 2007-11-21 | 실리케이트 형광체, 이를 포함하는 백색 발광 소자 |
| US12/139,055 US8262934B2 (en) | 2007-11-21 | 2008-06-13 | Silicate phosphor and white light emitting device including the same |
| US12/173,628 US8239385B2 (en) | 2007-11-21 | 2008-07-15 | Method of writing and reproducing multimedia service by using tag and apparatus therefor |
| US13/544,276 US9245706B2 (en) | 2007-11-21 | 2012-07-09 | Method of writing and reproducing multimedia service by using tag and apparatus therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070119311A KR101399652B1 (ko) | 2007-11-21 | 2007-11-21 | 실리케이트 형광체, 이를 포함하는 백색 발광 소자 |
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| Publication Number | Publication Date |
|---|---|
| KR20090052690A KR20090052690A (ko) | 2009-05-26 |
| KR101399652B1 true KR101399652B1 (ko) | 2014-06-27 |
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| KR1020070119311A Expired - Fee Related KR101399652B1 (ko) | 2007-11-21 | 2007-11-21 | 실리케이트 형광체, 이를 포함하는 백색 발광 소자 |
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| Country | Link |
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| US (3) | US8262934B2 (ko) |
| KR (1) | KR101399652B1 (ko) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9870796B2 (en) * | 2007-05-25 | 2018-01-16 | Tigerfish | Editing video using a corresponding synchronized written transcript by selection from a text viewer |
| KR101537234B1 (ko) | 2007-11-21 | 2015-07-23 | 삼성전자주식회사 | 태그를 이용하여 멀티미디어 서비스를 기록 및 재생하는방법과 그 장치 |
| KR101399652B1 (ko) | 2007-11-21 | 2014-06-27 | 삼성전기주식회사 | 실리케이트 형광체, 이를 포함하는 백색 발광 소자 |
| US8823554B2 (en) * | 2010-12-09 | 2014-09-02 | The Boeing Company | Managing a plurality of radio frequency identification devices |
| US8791823B2 (en) | 2011-06-03 | 2014-07-29 | The Boeing Company | Aircraft part control system |
| KR101877391B1 (ko) * | 2011-10-24 | 2018-07-11 | 엘지전자 주식회사 | 미디어 카드, 미디어 장치, 컨텐츠 서버 및 그 동작방법 |
| KR20130048035A (ko) * | 2011-11-01 | 2013-05-09 | 엘지전자 주식회사 | 미디어 장치, 컨텐츠 서버 및 그 동작방법 |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20090130484A1 (en) | 2009-05-21 |
| KR20090052690A (ko) | 2009-05-26 |
| US20090132595A1 (en) | 2009-05-21 |
| US20120274454A1 (en) | 2012-11-01 |
| US9245706B2 (en) | 2016-01-26 |
| US8262934B2 (en) | 2012-09-11 |
| US8239385B2 (en) | 2012-08-07 |
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