KR100735320B1 - 형광체막 형성방법 및 이를 이용한 발광다이오드 패키지제조방법 - Google Patents
형광체막 형성방법 및 이를 이용한 발광다이오드 패키지제조방법 Download PDFInfo
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- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
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- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
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- H—ELECTRICITY
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- H—ELECTRICITY
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Abstract
Description
Claims (19)
- 제1 극성의 전하를 갖는 형광체 입자의 표면에 제2 극성의 전하를 갖는 나노사이즈의 광투과성 비즈(beads)가 흡착되도록 상기 형광체와 상기 광투과성 비즈를 수계용매에서 혼합하는 단계;상기 혼합과정으로부터 얻어진 형광체 혼합용액을 형광체막이 형성될 영역에 코팅하는 단계; 및상기 코팅된 형광체 혼합용액을 건조시킴으로써 형광체막을 형성하는 단계를 포함하는 형광체막 형성방법.
- 제1항에 있어서,상기 형광체와 상기 광투과성 비즈를 혼합하는 단계는, 제2 극성을 갖는 분산제를 추가적으로 첨가하여 혼합하는 단계인 것을 특징으로 하는 형광체막 형성방법.
- 제1항에 있어서,상기 광투과성 나노비즈의 평균 입경은 50∼500㎚인 것을 특징으로 하는 형광체막 형성방법.
- 제1항에 있어서,상기 광투과성 나노비즈는 유리전이온도(Tg)가 적어도 200℃인 것을 특징으로 하는 형광체막 형성방법.
- 제1항에 있어서,상기 형광체 입자는 (+)극성을 가지며, 상기 광투과성 나노비즈는 그 표면에 술폰네이트기, 포스페이트기 및 카르복실레이트기로 구성된 그룹에서 선택된 (-)극성을 띠는 기능기를 갖는 것을 특징으로 하는 형광체막 형성방법.
- 제1항에 있어서,상기 광투과성 나노비즈는, 폴리에틸렌(PE), 폴리프로필렌(PP), 폴리스틸렌(PS), 폴리에틸렌 테레프탈레이트(PET), 폴리에틸렌 테레나프탈레이트(PEN), 폴리부틸렌 테레프탈레이트(PBT), 폴리에테르술폰(PES), 폴리에테르에테르케톤(PEEK), 폴리카보네이트(PC), 폴리이미드(PI), 폴리에테르이미드 및 폴리아크릴레이트로 구성된 그룹에서 선택된 적어도 하나인 것을 특징으로 하는 형광체막 형성방법.
- 제1항에 있어서,상기 형광체는 상기 수계 용매에 대해서 2 ∼ 10wt%의 범위로 혼합되는 것을 특징으로 하는 형광체막 형성방법.
- 제1항 또는 제7항에 있어서,상기 광투광성 나노비즈는 상기 혼합되는 형광체의 중량에 대해서 5 ∼ 10wt%의 범위로 혼합되는 것을 특징으로 하는 형광체막 형성방법.
- 제1항에 있어서,상기 수계 용매는 탈이온수인 것을 특징으로 하는 형광체 형성방법.
- 제1 극성의 전하를 갖는 형광체 입자의 표면에 제2 극성의 전하를 갖는 나노사이즈의 광투과성 비즈가 흡착되도록 상기 형광체와 상기 광투과성 비즈를 수계용매에서 혼합하는 단계;상기 혼합과정으로부터 얻어진 형광체 혼합용액을 적어도 발광다이오드 칩의 광방출면에 코팅하는 단계;상기 코팅된 형광체 혼합용액을 건조시킴으로써 형광체막을 형성하는 단계; 및상기 형광체막이 형성된 발광다이오드 칩 주위에 수지포장부를 형성하는 단계를 포함하는 발광다이오드 패키지 제조방법.
- 제10항에 있어서,상기 형광체와 상기 광투과성 비즈를 혼합하는 단계는, 제2 극성을 갖는 분 산제를 추가적으로 첨가하여 혼합하는 단계인 것을 특징으로 하는 발광다이오드 패키지 제조방법.
- 제10항에 있어서,상기 광투과성 나노비즈의 평균 입경은 50∼500㎚인 것을 특징으로 하는 발광다이오드 패키지 제조방법.
- 제10항에 있어서,상기 광투과성 나노비즈는 유리전이온도(Tg)가 적어도 200℃인 것을 특징으로 하는 발광다이오드 패키지 제조방법.
- 제10항에 있어서,상기 광투과성 나노비즈는 상기 발광다이오드의 구성물질의 굴절률보다 높고 상기 수지포장부의 굴절률보다 낮은 굴절률을 갖는 것을 특징으로 하는 발광다이오드 패키지 제조방법.
- 제10항에 있어서,상기 형광체 입자는 (+)극성을 가지며, 상기 광투과성 나노비즈는 그 표면에 술폰네이트기, 포스페이트기 및 카르복실레이트기로 구성된 그룹에서 선택된 (-)극 성을 띠는 기능기를 갖는 것을 특징으로 하는 발광다이오드 패키지 제조방법.
- 제10항에 있어서,상기 광투과성 나노비즈는, 폴리에틸렌(PE), 폴리프로필렌(PP), 폴리스틸렌(PS), 폴리에틸렌 테레프탈레이트(PET), 폴리에틸렌 테레나프탈레이트(PEN), 폴리부틸렌 테레프탈레이트(PBT), 폴리에테르술폰(PES), 폴리에테르에테르케톤(PEEK), 폴리카보네이트(PC), 폴리이미드(PI), 폴리에테르이미드 및 폴리아크릴레이트로 구성된 그룹에서 선택된 적어도 하나인 것을 특징으로 하는 발광다이오드 패키지 제조방법.
- 제10항에 있어서,상기 형광체는 상기 수계 용매에 대해서 2 ∼ 10wt%의 범위로 혼합되는 것을 특징으로 하는 발광다이오드 패키지 제조방법.
- 제10항 또는 제17항에 있어서,상기 광투광성 나노비즈는 상기 혼합되는 형광체의 중량에 대해서 5 ∼ 10wt%의 범위로 혼합되는 것을 특징으로 하는 발광다이오드 패키지 제조방법.
- 제10항에 있어서,상기 수계 용매는 탈이온수인 것을 특징으로 하는 발광다이오드 패키지 제조방법.
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KR1020050130153A KR100735320B1 (ko) | 2005-12-27 | 2005-12-27 | 형광체막 형성방법 및 이를 이용한 발광다이오드 패키지제조방법 |
TW095133424A TWI355414B (en) | 2005-12-27 | 2006-09-11 | Method of forming phosphor film and method of manu |
JP2006254853A JP4879685B2 (ja) | 2005-12-27 | 2006-09-20 | 蛍光体膜形成方法及びこれを用いた発光ダイオードパッケージの製造方法 |
US11/524,952 US7842333B2 (en) | 2005-12-27 | 2006-09-22 | Method of forming phosphor film and method of manufacturing light emitting diode package incorporating the same |
US12/914,042 US8226852B2 (en) | 2005-12-27 | 2010-10-28 | Method of forming phosphor film and method of manufacturing light emitting diode package incorporating the same |
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KR100735320B1 (ko) * | 2005-12-27 | 2007-07-04 | 삼성전기주식회사 | 형광체막 형성방법 및 이를 이용한 발광다이오드 패키지제조방법 |
US8058088B2 (en) | 2008-01-15 | 2011-11-15 | Cree, Inc. | Phosphor coating systems and methods for light emitting structures and packaged light emitting diodes including phosphor coating |
US8940561B2 (en) * | 2008-01-15 | 2015-01-27 | Cree, Inc. | Systems and methods for application of optical materials to optical elements |
US20100244064A1 (en) * | 2009-03-27 | 2010-09-30 | Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. | Light source |
US20110220920A1 (en) * | 2010-03-09 | 2011-09-15 | Brian Thomas Collins | Methods of forming warm white light emitting devices having high color rendering index values and related light emitting devices |
TW201200580A (en) * | 2010-06-29 | 2012-01-01 | Nihon Ceratec Co Ltd | Fluorescent substance material and light-emitting device |
JP5777242B2 (ja) * | 2010-06-29 | 2015-09-09 | 株式会社日本セラテック | 蛍光体材料および発光装置 |
CN102451812B (zh) * | 2010-10-26 | 2014-02-19 | 展晶科技(深圳)有限公司 | 荧光粉涂布方法 |
DE102010054280B4 (de) * | 2010-12-13 | 2025-05-22 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Verfahren zum Erzeugen einer Lumineszenzkonversionsstoffschicht, Zusammensetzung hierfür und Bauelement umfassend eine solche Lumineszenzkonversionsstoffschicht |
US9166126B2 (en) | 2011-01-31 | 2015-10-20 | Cree, Inc. | Conformally coated light emitting devices and methods for providing the same |
US9508904B2 (en) | 2011-01-31 | 2016-11-29 | Cree, Inc. | Structures and substrates for mounting optical elements and methods and devices for providing the same background |
EP2685512A4 (en) * | 2011-03-11 | 2014-09-03 | Konica Minolta Inc | METHOD FOR PRODUCING A LIGHT-EMITTING DEVICE AND A MIXING PHOSPHORIZED SOLUTION |
KR101971123B1 (ko) * | 2012-08-23 | 2019-04-23 | 삼성디스플레이 주식회사 | 나노 형광체 시트 및 백라이트 장치 |
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US20110043100A1 (en) | 2011-02-24 |
JP4879685B2 (ja) | 2012-02-22 |
KR20070068495A (ko) | 2007-07-02 |
TWI355414B (en) | 2012-01-01 |
JP2007180494A (ja) | 2007-07-12 |
US20070148332A1 (en) | 2007-06-28 |
US8226852B2 (en) | 2012-07-24 |
US7842333B2 (en) | 2010-11-30 |
TW200724666A (en) | 2007-07-01 |
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