JP2009516931A - 電圧感応状態遷移誘電体材料を用いる発光デバイス - Google Patents
電圧感応状態遷移誘電体材料を用いる発光デバイス Download PDFInfo
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Abstract
Description
図1は、本発明の実施形態にしたがう、VSD材料を組み込むかまたは一体化するように構成された、発光デバイスのブロック図である。デバイス100は、入力端子112から出力端子114に電流が流れる発光コンポーネント110を有する。電流がコンポーネント110を通って流れる結果、光が発生する。コンポーネント110は様々な材料及び/または構造を有することができる。例えばLEDの場合、コンポーネント110は多くの可能な半導体材料の内のいずれか1つで形成することができる。一方、OLEDはポリマーを含む有機材料で形成することができる。発光コンポーネント110は他の種類のコンポーネントも有することができる。例えば、本明細書に説明される1つまたはそれより多くの実施形態は、電流がそれを通って流れると「燃えて」特定のスペクトルの光を発する、新種材料で形成されたフィラメントに実施することができる。
発光ダイオードは、本明細書に説明される実施形態にしたがい、VSD材料を複合するかまたは一体化することができる発光デバイスの一種である。本節では、本発明の実施形態にしたがい、VSD材料を複合するかまたは一体化する発光ダイオードの様々な実施態様が示される。
1つまたはそれより多くの実施形態では、VSD材料がOLEDデバイスに組み込まれるかまたは一体化される。一実施形態にしたがえば、OLEDデバイスの動作仕様をこえる過渡電圧及びその他の異常な電気事象の発生時に電流伝導路をOLEDデバイスから逸らすことができるように、OLEDデバイスがVSD材料に結合される。
図7は、本発明の一実施形態にしたがう、VSD材料が一体化されている発光デバイスを形成するための手法を示す。図7で説明されるような方法は、ボードまたは基板上に搭載されて他のコンポーネントとの電気的相互接続を有することができるコンポーネントを含む、LEDまたはその他の発光コンポーネントのようなデバイスを形成するために用いることができる。
添付図面を参照して説明した実施形態は例示的と見なされ、出願人
による特許請求の範囲はそのような例示的実施形態の詳細に限定されるべきではない。説明した実施形態には、相異なる例示的実施形態で個別に説明した特徴の組合せを含む、様々な改変及び変形を含めることができるであろう。したがって、本発明の範囲は添付される特許請求の範囲によって定められるとされる。さらに、個別に、またはある実施形態の一部として、説明される特定の特徴は別の個別に説明される特徴または他の実施形態の一部と、別の特徴及び実施形態ではその特定の特徴についての言及がなされていないとしても、組み合せることができると考えられる。
110 発光コンポーネント
112 入力端子
114 出力端子
116,118 リード
122,220,420,510 基板
124 ケース
210,310,410,514 LEDデバイス
415,520,620,812 VSD材料
610 OLEDデバイス
Claims (20)
- 発光デバイスにおいて、
少なくとも第1の端子と第2の端子の間に電流を流すことによって発光するコンポーネント、及び
材料であって、(i)前記材料の特性電圧レベルをこえる電圧がない状態では誘電性であり、(ii)前記特性電圧レベルをこえる前記電圧の印加によって導電性になる特性を有する、電圧感応状態遷移誘電体(VSD)材料、
を有し、
前記VSD材料が、発光する前記コンポーネントに対して、前記VSD材料の前記特性電圧レベルをこえるいかなる過渡電圧に対しても前記コンポーネントに接地を与えるように、配置されることを特徴とするデバイス。 - 前記コンポーネントがダイオードであることを特徴とする請求項1に記載のデバイス。
- 前記コンポーネントが半導体材料で形成されることを特徴とする請求項1に記載のデバイス。
- 前記コンポーネントが前記第1の端子から延びる第1のリード及び前記第2の端子から延びる第2のリードを有し、前記VSD材料が前記第1のリードと前記第2のリードの間に前記第1のリード及び前記第2のリードと接して配置されることを特徴とする請求項3に記載のデバイス。
- 前記コンポーネントが基板上に設けられ、前記VSD材料が前記基板によって与えられることを特徴とする請求項3に記載のデバイス。
- 前記コンポーネントが有機ポリマーで形成されることを特徴とする請求項1に記載のデバイス。
- 前記VSD材料が、(i)前記半導体材料、(ii)前記コンポーネントの前記第1の端子、(iii)前記コンポーネントの前記第2の端子、(iv)前記第1の端子の第1のリードまたは(v)前記第2の端子の第2のリードの内のいずれか1つまたはそれより多くの下になるように、前記基板上に設けられることを特徴とする請求項3に記載のデバイス。
- 前記VSD材料が、(i)前記半導体材料で形成された前記コンポーネント、(ii)前記コンポーネントの前記第1の端子、(iii)前記コンポーネントの前記第2の端子、(iv)前記第1の端子の第1のリードまたは(v)前記第2の端子の第2のリードの内のいずれか1つまたはそれより多くの下になるように、基板上に設けられることを特徴とする請求項5に記載のデバイス。
- 前記デバイスが前記コンポーネントに印加されると前記デバイスを故障させる最小電圧値に対応する特性破壊電圧を有し、前記VSD材料の前記特性電圧レベルが前記特性破壊電圧より低いことを特徴とする請求項1に記載のデバイス。
- 発光デバイスにおいて、
電流が印加されると発光するように構成された半導体コンポーネント、及び
前記半導体コンポーネントに結合された電圧感応状態遷移誘電体(VSD)材料であって、(i)前記VSD材料の特性電圧レベルをこえる電圧がない状態では誘電性であり、(ii)前記特性電圧レベルをこえる前記電圧の印加によって導電性になる特性を有するように配置されるVSD材料、
を有し、
前記VSD材料が導電性である間は電流を前記半導体コンポーネントから逸らして流すように、前記VSD材料が配置されることを特徴とするデバイス。 - 前記半導体コンポーネントがダイオードであることを特徴とする請求項10に記載のデバイス。
- 前記デバイスが、前記コンポーネントに印加されると前記デバイスを故障させる最小電圧値に対応する特性破壊電圧を有し、前記VSD材料の前記特性電圧レベルが前記特性破壊電圧より低いことを特徴とする請求項10に記載のデバイス。
- 前記半導体コンポーネントが搭載されている基板上に前記VSD材料が設けられることを特徴とする請求項10に記載のデバイス。
- 前記VSD材料が前記半導体コンポーネントを前記基板に接合するために用いられることを特徴とする請求項13に記載のデバイス。
- 前記半導体コンポーネントが第1の端子及び第2の端子を有し、前記VSD材料が前記第1の端子及び前記第2の端子のいずれかに、またはいずれとも、電気的に接していることを特徴とする請求項10に記載のデバイス。
- 前記VSD材料が前記第1の端子から延びる第1のリードと前記第2の端子から延びるリードの間にまたがり、前記第1のリード及び前記第2のリードに接することを特徴とする請求項15に記載のデバイス。
- 前記デバイスがケースをさらに有し、前記VSD材料が前記ケースによって、または前記ケースの一部として、与えられることを特徴とする請求項10に記載のデバイス。
- 発光デバイスにおいて、
有機発光層を含む複数の層を有する積層構造体、及び
前記積層構造体に結合された電圧感応状態遷移誘電体(VSD)材料であって、(i)前記VSD材料の特性電圧レベルをこえる電圧がない状態では誘電性であり、(ii)前記特性電圧レベルをこえる前記電圧の印加によって導電性になる特性を有するように配置されるVSD材料、
を有し、
前記VSD材料が導電性である間は、電流を前記積層構造体から逸らして流すように前記VSD材料が配置されることを特徴とするデバイス。 - 前記積層構造体が、それらの間に電位差が与えられるアノード端子及びカソード端子を有し、前記VSD材料が前記端子の内の1つと、またはいずれとも、接して設けられることを特徴とする請求項18に記載のデバイス。
- 前記カソード端子がドライバ上に設けられ、前記VSD材料が前記ドライバの下にあって、導電性になったときに、電流を前記積層構造体から逸らして流すことを特徴とする請求項19に記載のデバイス。
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Also Published As
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---|---|
EP1958271A2 (en) | 2008-08-20 |
EP2490508A3 (en) | 2013-05-15 |
KR20080085146A (ko) | 2008-09-23 |
US20070126018A1 (en) | 2007-06-07 |
EP2490508A2 (en) | 2012-08-22 |
MY147844A (en) | 2013-01-31 |
US20100270545A1 (en) | 2010-10-28 |
WO2007062171A3 (en) | 2009-04-30 |
US20100270546A1 (en) | 2010-10-28 |
WO2007062171A2 (en) | 2007-05-31 |
US7825491B2 (en) | 2010-11-02 |
WO2007062171A9 (en) | 2008-08-28 |
JP2012238860A (ja) | 2012-12-06 |
EP1958271A4 (en) | 2009-12-23 |
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