JP2010103112A - 有機電界発光表示装置及びその製造方法 - Google Patents
有機電界発光表示装置及びその製造方法 Download PDFInfo
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Abstract
【解決手段】素子領域及び封止領域を有する基板と、前記素子領域の基板上に位置する有機電界発光素子と、前記基板に対応して素子領域及び封止領域を有する封止基板と、前記封止基板の素子領域上に形成された光透過層と、前記封止基板の素子領域上に形成され、前記光透過層の上部に形成される内部充填剤と、前記封止基板の封止領域に位置し、前記基板と封止基板とを封止する封止剤と、を含むことを特徴とする有機電界発光表示装置及びその製造方法。
【選択図】図7
Description
続いて、前記基板200の素子領域I上に有機電界発光素子210を形成する。前記有機電界発光素子210は、第1電極220、少なくとも発光層を含む有機膜層230及び第2電極240を含むことを特徴とする。
また、本発明は、基板と封止基板との間に内部充填剤を形成することで、封止剤としてガラスフリットを用い機械的強度を向上させることができ、また、封止基板側に光透過層を形成することで、内部充填剤を用い光効率の低下を防止することができる有機電界発光表示装置を提供することができる。
210 有機電界発光素子
220 第1電極
230 有機膜層
240 第2電極
250 保護膜
260 封止基板
270 光透過層
280 シーラント部
290 内部充填剤
300a ガラスフリット
300b 封止剤
Claims (20)
- 素子領域及び封止領域を有する基板と、
前記基板の前記素子領域の位置に形成される有機電界発光素子と、
前記基板に対応して素子領域及び封止領域を有する封止基板と、
前記封止基板の前記素子領域の位置に形成され、前記有機電界発光素子に対向して配置される光透過層と、
前記有機電界発光素子と前記光透過層との間に形成される内部充填剤と、
前記封止基板の前記封止領域に位置し、前記基板と前記封止基板を封止する封止剤と、
を含むことを特徴とする、有機電界発光表示装置。 - 前記有機電界発光素子を覆う保護膜をさらに含むことを特徴とする、請求項1に記載の有機電界発光表示装置。
- 前記封止基板の封止領域に位置し、前記内部充填剤を支持するシーラント部をさらに含むことを特徴とする、請求項1または2に記載の有機電界発光表示装置。
- 前記封止剤は、前記シーラント部の外側に位置することを特徴とする、請求項3に記載の有機電界発光表示装置。
- 前記封止剤は、ガラスフリットを含むことを特徴とする、請求項1〜4のいずれか1項に記載の有機電界発光表示装置。
- 前記ガラスフリットは、酸化鉛(PbO)、三酸化二ホウ素(B2O3)及び二酸化ケイ素(SiO2)で構成された群から選択された1つを少なくとも含むことを特徴とする、請求項5に記載の有機電界発光表示装置。
- 前記光透過層は、有機膜、無機膜またはそれらの多重層であることを特徴とする、請求項1〜6のいずれか1項に記載の有機電界発光表示装置。
- 前記光透過層の屈折率は、1.75〜1.85であることを特徴とする、請求項1〜7のいずれか1項に記載の有機電界発光表示装置。
- 前記光透過層の厚さは、630〜770Åであることを特徴とする、請求項1〜8のいずれか1項に記載の有機電界発光表示装置。
- 前記内部充填剤は、アクリル系樹脂、エポキシ系樹脂、フッ素樹脂及びテフロン(登録商標)樹脂で構成された群から選択されるいずれか1つの物質を少なくとも含むことを特徴とする、請求項1〜9のいずれか1項に記載の有機電界発光表示装置。
- 前記シーラント部は、シリコン系樹脂、エポキシ系樹脂、アクリル系樹脂及びポリイミド系樹脂で構成された群から選択されるいずれか1つの物質を少なくとも含むことを特徴とする、請求項1〜10のいずれか1項に記載の有機電界発光表示装置。
- 前記有機電界発光素子は、半導体層、ゲート電極及びソース/ドレイン電極を含む薄膜トランジスタをさらに有することを特徴とする、請求項1〜11のいずれか1項に記載の有機電界発光表示装置。
- 素子領域及び封止領域を有する基板を提供する段階と、
前記基板の前記素子領域の位置に有機電界発光素子を形成する段階と、
前記基板に対応して素子領域及び封止領域を有する封止基板を提供する段階と、
前記封止基板の素子領域上の位置に、前記有機電界発光素子に対向して光透過層を形成する段階と、
前記有機電界発光素子と前記光透過層との間に内部充填剤を形成する段階と、
前記封止基板の前記封止領域に、前記基板と前記封止基板とを封止する封止剤を形成する段階と、
を含むことを特徴とする、有機電界発光表示装置の製造方法。 - 前記有機電界発光素子を形成した後、前記有機電界発光素子を覆う保護膜を形成する段階をさらに含むことを特徴とする、請求項13に記載の有機電界発光表示装置の製造方法。
- 前記光透過層を形成した後、前記封止基板の封止領域にシーラント部を形成する段階をさらに含むことを特徴とする、請求項13または14に記載の有機電界発光表示装置の製造方法。
- 前記封止剤は、前記シーラント部の外側に位置することを特徴とする、請求項15に記載の有機電界発光表示装置の製造方法。
- 前記封止剤は、ガラスフリットを有し、前記ガラスフリットにレーザを照射して前記ガラスフリットを溶融し、固相化して形成することを特徴とする、請求項13〜16のいずれか1項に記載の有機電界発光表示装置の製造方法。
- 前記ガラスフリットは、酸化鉛(PbO)、三酸化二ホウ素(B2O3)及び二酸化ケイ素(SiO2)で構成された群から選択されたいずれか1つの物質を少なくとも含むことを特徴とする、請求項17に記載の有機電界発光表示装置の製造方法。
- 前記光透過層の屈折率は、1.75〜1.85であることを特徴とする、請求項13〜18のいずれか1項に記載の有機電界発光表示装置の製造方法。
- 前記光透過層の厚さは、630〜770Åであることを特徴とする、請求項13〜19のいずれか1項に記載の有機電界発光表示装置の製造方法。
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