JP2010177712A - 発光素子及びその製造方法並びにこれを用いた発光装置 - Google Patents
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Abstract
【解決手段】基板と、基板上に形成された、下部電極、下部電極上に形成された第1半導体層、第1半導体層上に形成された活性層、活性層上に形成された第2半導体層、及び第2半導体層上に形成された上部電極を各々有する複数の発光セルと、複数の発光セル中の一つの発光セルの下部電極とその発光セルに隣接する別の発光セルとの間に形成された絶縁膜と、を備え、複数の発光セルは、複数の発光セルを二つ以上有する第1の発光セルブロック及び複数の発光セルを四つ以上有する第2の発光セルブロックを構成し、第1の発光セルブロックの一端の発光セルの下部電極は、第2の発光セルブロックの二つの発光セルの上部電極と絶縁膜上に形成された配線で接続され、第1の発光セルブロックの他端の発光セルの上部電極は、第2の発光セルブロックの二つの発光セルとは異なる二つの発光セルの下部電極と絶縁膜上に形成された配線で接続される発光素子。
【選択図】図10
Description
図12を参照すると、この実施形態による発光素子300は、直列に接続されている複数の発光セル100、200と、発光セル100、200に所定の電流を加えるための整流ブリッジ部301と、整流ブリッジ部301に接続されている第1及び第2の電極310及び320と、整流ブリッジ部301に接続されてLEDアレイの抵抗を調節するための外部接続用の負電極350と、発光セル100、200に接続されている直流用の正電極360とを備える。
20、201 基板
30 バッファ層
40、220 N型半導体層
50、230 活性層
60、240 P型半導体層
70 透明電極
80、260 (金属)配線
90、95、210、250 (P型、N型)パッド
100、200 発光セル
301 整流ブリッジ部
310、320、330、340 (第1〜第4の)電極
350 外部接続用の負電極
360 直流用の正電極
410 電源部
420 制御部
Claims (7)
- 基板と、
前記基板上に形成された、下部電極、前記下部電極上に形成された第1半導体層、前記第1半導体層上に形成された活性層、前記活性層上に形成された第2半導体層、及び前記第2半導体層上に形成された上部電極をそれぞれ有する複数の発光セルと、
前記複数の発光セルのうちの一つの発光セルの前記下部電極と前記一つの発光セルに隣接する別の発光セルとの間に形成された絶縁膜と、
を具備し、
前記複数の発光セルは、前記複数の発光セルを二つ以上有する第1の発光セルブロックと、前記複数の発光セルを四つ以上有する第2の発光セルブロックとを構成し、
前記第1の発光セルブロックの一端の前記発光セルの前記下部電極は、前記第2の発光セルブロックの二つの前記発光セルの前記上部電極と前記絶縁膜上に形成された配線により電気的に接続され、
前記第1の発光セルブロックの他端の前記発光セルの前記上部電極は、前記第2の発光セルブロックの前記二つの発光セルとは異なる別の二つの発光セルの前記下部電極と前記絶縁膜上に形成された前記配線により電気的に接続されることを特徴とする発光素子。 - 前記基板は、導電性基板であり、
絶縁層が前記基板と前記下部電極との間に形成されることを特徴とする請求項1に記載の発光素子。 - 前記下部電極の一部は、前記発光セルの外側に露出されることを特徴とする請求項1に記載の発光素子。
- 前記第1の発光セルブロックは交流電源の順方向及び逆方向の電圧印加時の両方で光を出射し、前記第2の発光セルブロックは前記交流電源の順方向又は逆方向の電圧印加時で光を出射する発光セルを少なくとも二つずつ有することを特徴とする請求項1に記載の発光素子。
- 基板と、
前記基板上に形成された、下部電極、前記下部電極上に形成された第1半導体層、前記第1半導体層上に形成された活性層、前記活性層上に形成された第2半導体層、及び前記第2半導体層上に形成された上部電極をそれぞれ有する複数の発光セルと、
前記複数の発光セルのうちの一つの発光セルの前記下部電極と前記一つの発光セルに隣接する別の発光セルとの間に形成された絶縁膜と、
を具備し、
前記複数の発光セルは、交流電源の順方向および逆方向の電圧印加時の両方で光を出射する前記複数の発光セルを二つ以上有する発光セルブロックと、前記交流電源の順方向でのみ光を出射する前記複数の発光セルと前記交流電源の逆方向でのみ光を出射する前記複数の発光セルとをそれぞれ二つ以上有する整流ブリッジ部とを構成し、
前記発光セルブロックの一端の前記発光セルの下部電極は、前記整流ブリッジ部の二つの前記発光セルの前記上部電極と前記絶縁膜上に形成された配線により電気的に接続され、
前記発光セルブロックの他端の前記発光セルの前記上部電極は、前記整流ブリッジ部の前記二つの発光セルとは異なる別の二つの発光セルの前記下部電極と前記絶縁膜上に形成された前記配線により電気的に接続されることを特徴とする発光素子。 - 前記基板は、導電性基板であり、
絶縁層が前記基板と前記下部電極との間に形成されることを特徴とする請求項5に記載の発光素子。 - 前記下部電極の一部は、前記発光セルの外側に露出されることを特徴とする請求項5に記載の発光素子。
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KR20040104569A KR20060065954A (ko) | 2004-12-11 | 2004-12-11 | 다수의 셀이 결합된 발광 소자 및 이의 제조 방법 |
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JPH05198843A (ja) * | 1992-01-23 | 1993-08-06 | Toshiba Lighting & Technol Corp | 発光ダイオードランプおよび発光ダイオード表示装置 |
JPH0722936A (ja) * | 1993-06-17 | 1995-01-24 | Hokuyo Automatic Co | 光電スイッチ用led装置 |
JP2004512687A (ja) * | 2000-10-16 | 2004-04-22 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Ledモジュール |
JP2002359402A (ja) * | 2001-03-29 | 2002-12-13 | Lumileds Lighting Us Llc | 高抵抗性基層の上に形成されたモノリシック直列/並列ledアレイ |
JP2003151306A (ja) * | 2001-11-09 | 2003-05-23 | Sotoyoshi Kanayama | 電球用口金に発光ダイオードを組み込んだ電球 |
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JP4841550B2 (ja) | 2011-12-21 |
JP5777948B2 (ja) | 2015-09-09 |
US20100109031A1 (en) | 2010-05-06 |
US20120235583A1 (en) | 2012-09-20 |
US7804098B2 (en) | 2010-09-28 |
US20080017871A1 (en) | 2008-01-24 |
US20110210350A1 (en) | 2011-09-01 |
JP2008505478A (ja) | 2008-02-21 |
WO2006004337A1 (en) | 2006-01-12 |
US20110062465A1 (en) | 2011-03-17 |
US8492775B2 (en) | 2013-07-23 |
US8168988B2 (en) | 2012-05-01 |
US20130277682A1 (en) | 2013-10-24 |
US7964880B2 (en) | 2011-06-21 |
EP1787336B1 (en) | 2016-01-20 |
EP2144286A3 (en) | 2011-03-30 |
EP2144286A2 (en) | 2010-01-13 |
US7871839B2 (en) | 2011-01-18 |
EP1787336A1 (en) | 2007-05-23 |
JP2011181973A (ja) | 2011-09-15 |
EP2733744A1 (en) | 2014-05-21 |
US20110037397A1 (en) | 2011-02-17 |
EP1787336A4 (en) | 2011-03-30 |
US8198643B2 (en) | 2012-06-12 |
JP2010034610A (ja) | 2010-02-12 |
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