JP2013084878A - 発光素子及びこれを含む照明装置 - Google Patents
発光素子及びこれを含む照明装置 Download PDFInfo
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- JP2013084878A JP2013084878A JP2012029681A JP2012029681A JP2013084878A JP 2013084878 A JP2013084878 A JP 2013084878A JP 2012029681 A JP2012029681 A JP 2012029681A JP 2012029681 A JP2012029681 A JP 2012029681A JP 2013084878 A JP2013084878 A JP 2013084878A
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Led Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
【解決手段】本発明の一実施例に係る発光素子は、第1の導電型半導体層、活性層及び第2の導電型半導体層を有する発光構造物と、前記発光構造物の下部に位置し、第2の導電型半導体層と電気的に連結された第2の電極層と、第2の電極層の下部に位置する主電極、及び前記主電極から分岐され、第2の電極層、第2の導電型半導体層及び活性層を貫通して第1の導電型半導体層と接する少なくとも1つの接触電極を有する第1の電極層と、第1の電極層と第2の電極層との間及び第1の電極層と前記発光構造物との間の絶縁層とを備え、第1の導電型半導体層は、第1の領域と、第1の領域と区分され、第1の領域より高さの低い第2の領域とを有し、第1の領域は前記接触電極と重畳されている。
【選択図】図1a
Description
110 支持基板
115 接合層
120 第1の電極層
120a 主電極
120b 接触電極
130 第2の電極層
132 オーミック層
134 反射層
136 電流拡散層
140 発光構造物
142 第2の導電型半導体層
144 活性層
146 第1の導電型半導体層
148 凹凸構造
148a 凸部
148b 凹部
170 絶縁層
180 パッシベーション層
190 電極パッド
212、214 ビアホール
250 PR層
310 パッケージ本体
321、322 第1及び第2のリードフレーム
330 ワイヤ
340 モールディング部
350 蛍光体
400 ハウジング
500 放熱部
600 光源
700 ホルダー
710 発光モジュール
720 リフレクタ
730 シェード
800 表示装置
810 ボトムカバー
820 反射板
840 導光板
850 第1のプリズムシート
860 第2のプリズムシート
870 パネル
880 カラーフィルター
Claims (13)
- 第1の導電型半導体層、活性層及び第2の導電型半導体層を有する発光構造物と、
前記発光構造物の下部に位置し、前記第2の導電型半導体層と電気的に連結された第2の電極層と、
前記第2の電極層の下部に位置する主電極、及び前記主電極から分岐され、前記第2の電極層、第2の導電型半導体層及び活性層を貫通して前記第1の導電型半導体層と接する少なくとも1つの接触電極を有する第1の電極層と、
前記第1の電極層と前記第2の電極層との間及び第1の電極層と前記発光構造物との間の絶縁層と
を備え、
前記第1の導電型半導体層は、第1の領域と、前記第1の領域と区分され、前記第1の領域より高さの低い第2の領域とを有し、前記第1の領域は前記接触電極と重畳されている、発光素子。 - 所定の方向に積層された第1の導電型半導体層、活性層及び第2の導電型半導体層を有する発光構造物と、
前記発光構造物の下部に位置し、前記第2の導電型半導体層と電気的に連結された第2の電極層と、
前記第2の電極層の下部に位置する主電極、及び前記主電極から分岐され、前記第2の電極層、第2の導電型半導体層及び活性層を貫通して前記第1の導電型半導体層と接する少なくとも1つの接触電極を有する第1の電極層と、
前記第1の電極層と前記第2の電極層との間及び第1の電極層と前記発光構造物との間の絶縁層と
を備え、
前記第1の導電型半導体層は、第1の領域と、前記第1の領域と区分され、前記第1の領域より厚さの薄い第2の領域とを有し、前記第1の領域は前記接触電極と前記所定の方向に重畳されている、発光素子。 - 前記第1の領域の幅が前記接触電極の幅と同じか、前記接触電極の幅より広い、請求項1又は2に記載の発光素子。
- 前記第1の領域の幅は前記接触電極の幅の1〜5倍である、請求項3に記載の発光素子。
- 前記第1の導電型半導体層の上面にラフネス又はパターンが形成された、請求項4に記載の発光素子。
- 前記発光構造物の側面には、第2の導電型半導体層、活性層及び第1の導電型半導体層の少なくとも一部を覆うパッシベーション層をさらに備える、請求項5に記載の発光素子。
- 前記第2の電極層の一側が前記発光構造物の外部に露出し、露出した部分に電極パッドが形成されている、請求項6に記載の発光素子。
- 前記第2の電極層は、前記第2の導電型半導体層の下部に位置するオーミック層及び/又は反射層を有する、請求項7に記載の発光素子。
- 前記第2の電極層は電流拡散層を有し、前記電極パッドが前記電流拡散層と接して配置されている、請求項8に記載の発光素子。
- 前記第1の領域の形状は、ストライプ状、円柱状、円錐状、ピラミッド状、四角柱状又は半円球状のうちの少なくとも1つを含む、請求項9に記載の発光素子。
- 前記第1の領域の側面に形成されたパッシベーション層をさらに備える、請求項10に記載の発光素子。
- 前記第1の導電型半導体層と接する前記接触電極の部分にラフネスが形成されている、請求項11に記載の発光素子。
- 基板上に複数の発光素子パッケージを含んで光を放出する光源と、
前記光源が内蔵されたハウジングと、
前記光源の熱を放出する放熱部と、
前記光源と前記放熱部を前記ハウジングに結合するホルダーと
を備え、
前記発光素子パッケージは、本体と、前記本体に配置された第1及び第2のリードフレームと、前記本体に配置され、前記第1及び第2のリードフレームと電気的に連結されている発光素子とを備え、
前記発光素子は、第1の方向に積層された第1の導電型半導体層、活性層及び第2の導電型半導体層を有する発光構造物と、前記発光構造物の下部に位置し、前記第2の導電型半導体層と電気的に連結された第2の電極層と、前記第2の電極層の下部に位置する主電極、及び前記主電極から分岐され、前記第2の電極層、第2の導電型半導体層及び活性層を貫通して前記第1の導電型半導体層と接する少なくとも1つの接触電極を有する第1の電極層と、前記第1の電極層と前記第2の電極層との間及び第1の電極層と前記発光構造物との間の絶縁層とを備え、前記第1の導電型半導体層は、第1の領域と、前記第1の領域と区分され、前記第1の領域より厚さの薄い第2の領域とを有し、前記第1の領域は前記接触電極と前記第1の方向に重畳されている、照明装置。
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CN103035803A (zh) | 2013-04-10 |
US20150014713A1 (en) | 2015-01-15 |
US8884312B2 (en) | 2014-11-11 |
KR20130038465A (ko) | 2013-04-18 |
CN103035803B (zh) | 2017-05-31 |
KR101827975B1 (ko) | 2018-03-29 |
US20130087814A1 (en) | 2013-04-11 |
US9356007B2 (en) | 2016-05-31 |
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