JP5513917B2 - 発光装置 - Google Patents
発光装置 Download PDFInfo
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- JP5513917B2 JP5513917B2 JP2010025926A JP2010025926A JP5513917B2 JP 5513917 B2 JP5513917 B2 JP 5513917B2 JP 2010025926 A JP2010025926 A JP 2010025926A JP 2010025926 A JP2010025926 A JP 2010025926A JP 5513917 B2 JP5513917 B2 JP 5513917B2
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- Prior art keywords
- substrate
- light
- light emitting
- organic
- emitting device
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Description
以下、本実施形態の発光装置について、図1に基づいて説明する。
本実施形態の発光装置の基本構成は実施形態1と略同じであって、図7に示すように、パッケージ用基板40において透光性基板10に対向する一面側に、有機EL素子20の各パッド122,124それぞれとボンディングワイヤ(例えば、金線、アルミニウム線などの金属線)からなる接続部132,134を介して電気的に接続される外部接続電極42,44が形成されている点など相違する。なお、実施形態1と同様の構成要素には同一の符号を付してある。
本実施形態の発光装置の基本構成は実施形態2と略同じであって、図8に示すように、保護部50を第2のガラス基板により構成し、当該ガラス基板からなる保護部50が、パッケージ用基板40を構成するガラス基板に対してフリットガラスからなる接合部80を介して封着されている点などが相違する。なお、実施形態2と同様の構成要素には同一の符号を付して説明を省略する。
本実施形態の発光装置の基本構成は実施形態3と略同じであって、図9に示すように、多数の突起31のうちの一部の突起31がスペーサ60を構成している点が相違するだけである。図9では、高さの異なる2種類の突起31が混在しており、高さ寸法の大きい突起31がスペーサ60を構成している。なお、実施形態3と同様の構成要素には同一の符号を付して説明する。
本実施形態の発光装置の基本構成は実施形態4と略同じであって、図10および図11に示すように、スペーサ60が凹凸構造部30の突起31とは別の壁状のリブにより構成されている点が相違する。なお、実施形態4と同様の構成要素には同一の符号を付して説明を省略する。
図12に示す本実施形態の発光装置の基本構成は実施形態4と略同じであり、有機EL素子20の陽極22と陰極24との両方が透明電極からなり、透光性基板10から遠い第2の電極(図示例では、陰極24)における透光性基板10側とは反対の表面側に、発光層からの光を反射する光反射性部材25を配置してある点が相違する。なお、実施形態4と同様の構成要素には同一の符号を付して説明を省略する。
20 有機EL素子
30 凹凸構造部
31 突起
32 凹部
40 パッケージ用基板
50 保護部
60 スペーサ
70 空間
Claims (6)
- 透光性基板と、前記透光性基板の一表面側に形成された有機EL素子と、前記透光性基板の他表面側に設けられ前記有機EL素子から放射された光の前記他表面での反射を抑制する凹凸構造部とを備えた発光装置であって、前記透光性基板の前記他表面側に配置され少なくとも一部が透光性材料により形成されたパッケージ用基板と、前記有機EL素子における前記透光性基板側とは反対側を覆い前記有機EL素子への水分の到達を阻止する保護部と、前記透光性基板の周部を全周に亘って前記パッケージ用基板に接合する接合部と、前記透光性基板と前記パッケージ用基板との間に介在し前記透光性基板と前記パッケージ用基板との間の距離を所定距離に保つスペーサとを有し、前記凹凸構造部と前記パッケージ用基板との間に空間が存在し、前記スペーサは、前記凹凸構造部を構成する多数の突起のうちの一部により構成され、前記スペーサとなる突起を一定間隔で設けてあることを特徴とする発光装置。
- 前記凹凸構造部は、前記突起が周期的に配列されてなることを特徴とする請求項1記載の発光装置。
- 前記凹凸構造部は、前記突起が錐状もしくは半球状に形成されてなることを特徴とする請求項1または請求項2記載の発光装置。
- 前記パッケージ用基板が第1のガラス基板からなるとともに、前記保護部が第2のガラス基板からなり、前記第2のガラス基板における前記第1のガラス基板との対向面の周部の全周が、フリットガラスにより前記第1のガラス基板側に封着されてなることを特徴とする請求項1ないし請求項3のいずれか1項に記載の発光装置。
- 前記透光性基板は、プラスチック基板からなることを特徴とする請求項1ないし請求項4のいずれか1項に記載の発光装置。
- 前記空間が、真空、不活性ガス、窒素ガス、ドライエアーの群から選択される1つの雰囲気であることを特徴とする請求項1ないし請求項5のいずれか1項に記載の発光装置。
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JPWO2013051633A1 (ja) | 2011-10-04 | 2015-03-30 | パナソニック株式会社 | 発光装置 |
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