KR101497953B1 - 광추출 효율이 향상된 발광 소자, 이를 포함하는 발광 장치, 상기 발광 소자 및 발광 장치의 제조 방법 - Google Patents
광추출 효율이 향상된 발광 소자, 이를 포함하는 발광 장치, 상기 발광 소자 및 발광 장치의 제조 방법 Download PDFInfo
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- KR101497953B1 KR101497953B1 KR1020080096685A KR20080096685A KR101497953B1 KR 101497953 B1 KR101497953 B1 KR 101497953B1 KR 1020080096685 A KR1020080096685 A KR 1020080096685A KR 20080096685 A KR20080096685 A KR 20080096685A KR 101497953 B1 KR101497953 B1 KR 101497953B1
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- light emitting
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Abstract
Description
Claims (26)
- 기판;상기 기판 상에 순차적으로 적층된 제1 도전형의 제1 도전층, 발광층, 제2 도전형의 제2 도전층을 포함하는 발광 구조체;상기 제1 도전층과 전기적으로 연결된 제1 전극; 및상기 제2 도전층과 전기적으로 연결되고, 상기 제1 전극으로부터 이격된 제2 전극을 포함하되,상기 제2 전극의 적어도 일부는 상기 발광 구조체의 상면에서부터, 상기 발광 구조체의 측벽을 거쳐, 상기 기판의 측벽까지 연결되어 있는 발광 소자.
- 제 1항에 있어서,상기 제1 도전층의 폭이 상기 제2 도전층의 폭 및 상기 발광층의 폭보다 넓어, 상기 제1 도전층은 상기 제2 도전층, 상기 발광층보다 측방향으로 돌출되어 있고, 상기 제1 전극은 상기 제1 도전층의 돌출된 영역 상에 형성된 발광 소자.
- 제 2항에 있어서,상기 제2 전극은 상기 제1 전극과 이격되어 있고, 상기 제1 전극을 둘러싸는 발광 소자.
- 제 1항에 있어서,상기 발광 구조체 또는 기판 각각 상부의 폭보다 하부의 폭이 넓어, 측벽이 경사져 있는 발광 소자.
- 제 1항에 있어서,상기 기판에 형성된 돔(dome) 패턴을 더 포함하고,상기 발광 구조체는 상기 돔 패턴을 따라 컨포말하게 형성된 발광 소자.
- 제 5항에 있어서,상기 돔 패턴은 볼록돔 패턴 또는 오목돔 패턴인 발광 소자.
- 제 1항에 있어서,상기 기판의 측벽과 상기 제2 전극 사이에는 n(단, n은 2이상 자연수)층의 절연층이 형성되고,상기 발광 구조체의 측벽과 상기 제2 전극 사이에는 m(단, m은 n보다 작은 자연수)층의 절연층이 형성되는 발광 소자.
- 제 1항에 있어서,상기 기판의 일면 상에 상기 발광 구조체가 형성되어 있고,상기 기판의 타면과, 상기 제2 전극의 일부는 동일 평면상에 위치하는 발광 소자.
- 기판;상기 기판의 상에 순차적으로 적층된 제1 도전형의 제1 도전층, 발광층, 제2 도전형의 제2 도전층을 포함하는 발광 구조체로서, 상기 제1 도전층의 폭이 상기 제2 도전층의 폭 및 상기 발광층의 폭보다 넓어, 상기 제1 도전층은 상기 제2 도전층, 상기 발광층보다 측방향으로 돌출되어 있는 발광 구조체;상기 제1 도전층과 전기적으로 연결되고, 상기 제1 도전층의 돌출된 영역 상에 형성된 제1 전극; 및상기 제2 도전층과 전기적으로 연결되고, 상기 제1 전극과 이격되어 있고, 상기 제1 전극을 둘러싸는 제2 전극을 포함하는 발광 소자.
- 기판 내에 홈을 형성하여, 소자 형성 영역을 정의하고,상기 소자 형성 영역 상에 제1 도전형의 제1 도전층, 발광층, 제2 도전형의 제2 도전층을 포함하는 발광 구조체를 형성하되, 상기 제1 도전층의 폭이 상기 제2 도전층의 폭 및 상기 발광층의 폭보다 넓어, 상기 제1 도전층은 상기 제2 도전층, 상기 발광층보다 측방향으로 돌출되도록 상기 발광 구조체를 형성하고,상기 제2 도전층과 전기적으로 연결되고, 상기 발광 구조체의 상면에서부터 상기 발광 구조체의 측벽을 거쳐, 상기 홈의 측벽까지 연결된 제1 전극을 형성하고,상기 제1 전극의 일부를 제거하여 상기 제1 도전층의 돌출된 영역의 일부를 노출되도록 하고,상기 노출된 제1 도전층 상에 상기 제1 도전층과 전기적으로 연결된 제2 전극을 형성하는 발광 소자의 제조 방법.
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US12/586,970 US8110843B2 (en) | 2008-10-01 | 2009-09-30 | Light emitting element with improved light extraction efficiency, light emitting device comprising the same, and fabricating method of the light emitting element and the light emitting device |
US13/343,147 US8415181B2 (en) | 2008-10-01 | 2012-01-04 | Light emitting element with improved light extraction efficiency, light emitting device comprising the same, and fabricating method of the light emitting element and the light emitting device |
US13/800,188 US8809888B2 (en) | 2008-10-01 | 2013-03-13 | Light emitting element with improved light extraction efficiency, light emitting device comprising the same, and fabricating method of the light emitting element and the light emitting device |
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US20120107988A1 (en) | 2012-05-03 |
US20100078670A1 (en) | 2010-04-01 |
US20130193474A1 (en) | 2013-08-01 |
US8809888B2 (en) | 2014-08-19 |
US8415181B2 (en) | 2013-04-09 |
KR20100037381A (ko) | 2010-04-09 |
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