KR102530385B1 - 청색 색소를 갖는 청색 방출 인광체 변환 led - Google Patents
청색 색소를 갖는 청색 방출 인광체 변환 led Download PDFInfo
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Abstract
Description
도 1a-1d는 LED 패키지들의 일부 실시예들을 개략적으로 도시하고;
도 2는 조명 디바이스의 실시예들을 개략적으로 도시하고;
도 3a는 450 내지 465㎚(실선들)의 주 파장 및 CIE 1931에 따라 보인 광 순응을 위한 루미너스 효율 함수(파선 곡선)를 갖는 청색 InGaN LED들의 표준화된 방출 스펙트럼을 도시하고;
도 3b는 도 1의 청색 LED들의 색점들 및 광 신호들의 CIE S 004/E-2001 및 DIN 6163-4:2011-07 색상들에 따르는 포화된 청색 색상들에 대한 청색 색상 영역을 도시한 CIE 1931 색도 차트를 도시한다. 외부 곡선은 단색 색상들에 대한 스펙트럼 궤적을 도시하고;
도 3c는 청색 LED들 상의 Ga,LuAG:Ce 인광체로 만들어진 pcLED들의 색점들을 도시한다. 정사각형들: 청색 색소 없음, 455.5㎚ 주 파장을 갖는 청색 LED. 삼각형들: 시코팔 색소가 있는 것(더 가파른 선, 이 비최적화된 예에서 선은 표시된 청색 영역의 최고 y-값에서 거의 끝난다). 원형: 본 발명의 예와 동일한 x 색상 좌표들에 대해 청색 색소가 없음. 청색 색소의 도포에 의한 이 청색 LED에 대한 결과적인 플럭스 이득은 동일한 x-색상 좌표에서 비교하여 20 퍼센트이고(아래 표 1 참조); 및
도 3d는 청색 LED들 상의 Ga,LuAG:Ce 인광체로 만들어진 pcLED들을 도시한다. 도 3c와 비교하여, 주 파장은 458㎚이다. 삼각형들: 시코팔 색소가 있는 것. 원형: 본 발명의 예와 동일한 x 색상 좌표들에 대해 청색 색소가 없음. 청색 색소의 도포에 의한 이 청색 LED에 대한 결과적인 플럭스 이득은 이제 26 퍼센트이고(아래 표 2 참조); 및
도 3e는 본 발명의 예들에서 사용된 발광 재료의 방출 및 색소의 투과를 도시한다.
개략적 도면들은 반드시 축척에 맞게(on scale) 도시되어 있지는 않다.
Claims (15)
- 청색 LED 패키지 광(101)을 발생하도록 구성되는 LED 패키지(100)로서,
상기 LED 패키지는 청색 광원 광(11)을 발생하도록 구성되는 고상 광원(10), 상기 광원 광(11)의 일부를 녹색 광을 포함하는 발광 재료 광(21)으로 변환하도록 구성되는 발광 재료(20), 및 상기 발광 재료 광(21)의 일부를 흡수하도록 구성되며, 상기 발광 재료 광(21)의 긴 파장 방출 부분의 일부를 흡수하고 상기 발광 재료 광(21)의 짧은 파장 방출 부분의 일부를 제거하는 청색 색소(30)를 포함하며, 상기 발광 재료(20)는,
(a) (Lu(1-x),Cex)3(Al(1-y),Gay)5O12, 0.005 ≤ x ≤ 0.08 및 0 ≤ y ≤ 0.7,
(b) Si(6-x)AlxOyN(6-y):Eu, 0 < x ≤ 4.2, 0 < y ≤ 4.2 (베타 시알론),
(c) 유로퓸으로 도핑된 알칼리 토금속 오쏘실리케이트(alkaline earth metal orthosilicate doped with europium),
(d) BaMgAl10O17:Eu,Mn,
(e) BaMg2Al16O27:Eu,Mn, 및
(f) Sr4Al14O25:Eu 중 하나 이상을 포함하는, LED 패키지(100). - 제1항에 있어서, 상기 청색 LED 패키지 광(101)의 CIE 좌표들은 x-CIE 좌표에 대해 0.091-0.175의 범위에 있고, y-CIE 좌표에 대해 0.025-0.183의 범위에 있는 LED 패키지(100).
- 제1항에 있어서, 상기 청색 LED 패키지 광(101)의 CIE 좌표들은 (0.091, 0.133), (0.149, 0.025), (0.175, 0.098) 및 (0.174, 0.183)에 의해 정의된 CIE 다이어그램의 부분 내에 있고, 상기 청색 LED 패키지 광(101)의 x-CIE 좌표는 최대 0.175에 있고 상기 청색 LED 패키지 광(101)의 y-CIE 좌표는 최소 0.140에 있는 LED 패키지(100).
- 제1항에 있어서, 상기 고상 광원(10)은 450-465㎚의 범위의 피크 파장을 갖는 청색 광원 광(11)을 발생하도록 구성되는 LED 패키지(100).
- 제1항에 있어서, 상기 발광 재료(20)는 490-530㎚의 범위로부터 선택된 피크 파장을 갖고 50-150㎚의 범위로부터 선택된 반치전폭(full width half maxiumum)(FWHM)을 갖는 발광 재료 광(21)을 제공하도록 구성되는 LED 패키지(100).
- 제1항에 있어서, 상기 발광 재료(20)는 세륨 도핑된 가넷(cerium doped garnet)을 포함하는 LED 패키지(100).
- 삭제
- 삭제
- 제1항에 있어서, 상기 청색 색소(30)는 42,000-45,000의 범위로부터 선택된 색 지수 국제 번호(color index international number)를 갖는 유기 염료를 포함하는 LED 패키지(100).
- 제1항에 있어서, 상기 청색 색소(30)는 프탈로시아닌(phthalocyanine)을 포함하는 LED 패키지(100).
- 제1항에 있어서, 상기 청색 색소(30)는 (a) MAl2O4 - M은 Co, Ni, Mg, Cu 및 Zn 중 하나 이상을 포함하고, M은 적어도 Co를 포함함 - , 및 (b) NaxAl6Si6O24Sy (6 ≤ x ≤ 8 및 2 ≤ y ≤ 4) 중 하나 이상을 포함하는 LED 패키지(100).
- 제1항에 있어서, 상기 발광 재료(20)를 포함하는 제1 층(120), 및 상기 청색 색소(30)를 포함하는 제2 층(130)을 포함하고, 상기 고상 광원(10)에 대해 상기 제2 층(130)은 상기 제1 층(120)의 하류(downstream)에 구성되는 LED 패키지(100).
- 제1항에 있어서, 상기 발광 재료(20) 및 상기 청색 색소(30)를 포함하는 제1 층(120)을 포함하는 LED 패키지(100).
- 제1항 내지 제6항, 및 제9항 내지 제13항 중 어느 한 항에 따른 LED 패키지(100), 및 제어 유닛(151), 및 (a) 광학계(152)와 (b) 추가 광원(200) 중 하나 이상을 포함하고, 상기 제어 유닛(151)은 상기 LED 패키지(100) 및 상기 추가 광원(200)을 제어하도록 구성되는 조명 디바이스(2).
- 청색 비상용 조명을 제공하기 위해 또는 장식용 조명을 제공하기 위해, 제1항 내지 제6항, 및 제9항 내지 제13항 중 어느 한 항에 따른 LED 패키지(100)를 사용하는 단계를 포함하는, 방법.
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EP15160458.4 | 2015-03-24 | ||
EP15160458 | 2015-03-24 | ||
PCT/EP2016/055669 WO2016150789A1 (en) | 2015-03-24 | 2016-03-16 | Blue emitting phosphor converted led with blue pigment |
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KR102530385B1 true KR102530385B1 (ko) | 2023-05-09 |
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US (1) | US10658552B2 (ko) |
EP (1) | EP3274423B1 (ko) |
JP (1) | JP6991066B2 (ko) |
KR (1) | KR102530385B1 (ko) |
CN (1) | CN107406766B (ko) |
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WO (1) | WO2016150789A1 (ko) |
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CN107406766A (zh) | 2017-11-28 |
CN107406766B (zh) | 2024-03-22 |
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US10658552B2 (en) | 2020-05-19 |
TW201706394A (zh) | 2017-02-16 |
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WO2016150789A1 (en) | 2016-09-29 |
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