JP4535387B2 - ドナー基板の製造方法,およびドナー基板を用いた有機電界発光表示装置の製造方法 - Google Patents
ドナー基板の製造方法,およびドナー基板を用いた有機電界発光表示装置の製造方法 Download PDFInfo
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Description
図1は,本発明の第1実施形態に係るドナー基板の製造方法を示す図である。図1を参照すると,少なくとも一つの転写領域および非転写領域を有するベース基板100を形成し,ベース基板100の転写領域および非転写領域を有する面上に光熱変換層を形成する。光熱変換層上にシャドーマスク50を用いて転写用物質を蒸着することにより,ベース基板100の転写領域に転写層を形成する。つまり,本発明の第1実施形態に係るドナー基板は,ベース基板100の少なくとも一つの転写領域および非転写領域を有する面上に,光熱変換層を有し,光熱変換層上に転写用物質を蒸着することで,転写領域に転写層を有する。ここで,ベース基板100において,転写領域は,レーザで照射される領域であり,非転写領域は,レーザで照射されない領域である。
図3a〜図3cを参照して,各単位画素ごとに説明すると,転写領域140および非転写領域145を備えるドナー基板105の転写領域140に,R発光物質,G発光物質,B発光物質よりなる転写層を蒸着して,R単位画素,G単位画素,B単位画素ごとに各々のドナー基板105を備える。ここで,図3a〜図3cにおいて,説明のために,ドナー基板105のアクセプター基板201に対向する面に形成される転写領域140,非転写領域145,転写層をドナー基板105のアクセプター基板201に対向する面の反対面に投射している。図2も,同様の理由で転写領域140,非転写領域145をドナー基板105のアクセプター基板201に対向する面の反対面に投射している。
50a 開口領域
70 支持板
100 ベース基板
105 ドナー基板
140 転写領域
145 非転写領域
200 下部基板
201 アクセプター基板
205 表示領域
210 薄膜トランジスタ
220 絶縁膜
230 画素電極
240 画素定義膜
250 転写層
260 対向電極
270 シーラント
280 上部基板
Claims (12)
- 少なくとも一つの転写領域および非転写領域を有するベース基板を形成する段階と;
前記ベース基板の前記転写領域および前記非転写領域を有する面上に、光熱変換層を形成する段階と;
前記光熱変換層上に、シャドーマスクを用いて転写物質を蒸着することにより、前記転写領域に選択的に転写層を形成する段階と;
を含み、
各々の前記転写領域に形成される前記転写層は、前記ベース基板に対向する前記基板の前記表示領域よりエッジ効果の現れる領域だけ広いことを特徴とする、レーザ熱転写法に用いるドナー基板の製造方法。 - 前記転写層は、前記ベース基板の背面に支持板を固定させた後、形成されることを特徴とする、請求項1に記載のレーザ熱転写法に用いるドナー基板の製造方法。
- 前記ベース基板は、2つ以上の前記転写領域を備え、前記非転写領域は、前記転写領域の間に位置することを特徴とする、請求項1または2のいずれかに記載のレーザ熱転写法に用いるドナー基板の製造方法。
- 前記転写層は、有機電界発光素子の発光層であることを特徴とする、請求項1〜3のいずれかに記載のレーザ熱転写法に用いるドナー基板の製造方法。
- 前記転写層は、正孔注入層、正孔輸送層、正孔抑制層および電子注入層よりなる群から選択される少なくとも1層をさらに含むことを特徴とする、請求項1〜4のいずれかに記載のレーザ熱転写法に用いるドナー基板の製造方法。
- 前記ベース基板と前記光熱変換層との間、または前記光熱変換層と前記転写層との間にバッファ層をさらに形成することを特徴とする、請求項1〜5のいずれかに記載のレーザ熱転写法に用いるドナー基板の製造方法。
- 少なくとも一つの転写領域および非転写領域を備えるベース基板の前記転写領域上に、シャドーマスクを用いて転写層を選択的に形成して、ドナー基板を形成する段階と;
前記ドナー基板に対向し、少なくとも一つの表示領域を備える基板を備える段階と;
前記ドナー基板の前記転写層と前記基板の前記表示領域とが対向するように整列する段階と;
前記基板の前記表示領域上に、前記ドナー基板の前記転写領域の前記転写層を転写させる段階と;
を含み、
各々の前記転写領域に形成される前記転写層は、前記ベース基板に対向する前記基板の前記表示領域よりエッジ効果の現れる領域だけ広いことを特徴とする、
むことを特徴とする、レーザ熱転写法を用いた有機電界発光表示装置の製造方法。 - 前記基板の前記表示領域上に、前記ドナー基板の前記転写領域の前記転写層を転写させる段階は、前記ドナー基板上の連続的なレーザ照射によって行われることを特徴とする、請求項7に記載のレーザ熱転写法を用いた有機電界発光表示装置の製造方法。
- 前記ドナー基板は、前記基板より大きいことを特徴とする、請求項7または8のいずれかに記載のレーザ熱転写法を用いた有機電界発光表示装置の製造方法。
- 前記ドナー基板は、前記ドナー基板の前記ベース基板と、前記ベース基板上に形成される光熱変換層との間、または前記光熱変換層と前記転写層との間に、バッファ層をさらに含むことを特徴とする、請求項7〜9のいずれかに記載のレーザ熱転写法を用いた有機電界発光表示装置の製造方法。
- 前記転写層は、発光層であることを特徴とする、請求項7〜10のいずれかに記載のレーザ熱転写法を用いた有機電界発光表示装置の製造方法。
- 前記転写層は、正孔注入層、正孔輸送層、正孔抑制層および電子注入層よりなる群から選択される少なくとも1層をさらに含むことを特徴とする、請求項7〜11のいずれかに記載のレーザ熱転写法を用いた有機電界発光表示装置の製造方法。
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KR1020040079250A KR100793355B1 (ko) | 2004-10-05 | 2004-10-05 | 도너 기판의 제조방법 및 유기전계발광표시장치의 제조방법 |
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US (1) | US7223514B2 (ja) |
EP (1) | EP1646094B1 (ja) |
JP (1) | JP4535387B2 (ja) |
KR (1) | KR100793355B1 (ja) |
CN (1) | CN100388422C (ja) |
DE (1) | DE602005013729D1 (ja) |
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US7419757B2 (en) * | 2006-10-20 | 2008-09-02 | 3M Innovative Properties Company | Structured thermal transfer donors |
JP2008235010A (ja) * | 2007-03-20 | 2008-10-02 | Sony Corp | 表示装置の製造方法 |
CN101271869B (zh) * | 2007-03-22 | 2015-11-25 | 株式会社半导体能源研究所 | 发光器件的制造方法 |
US20090130427A1 (en) * | 2007-10-22 | 2009-05-21 | The Regents Of The University Of California | Nanomaterial facilitated laser transfer |
US8425974B2 (en) * | 2007-11-29 | 2013-04-23 | Semiconductor Energy Laboratory Co., Ltd. | Evaporation donor substrate and method for manufacturing light-emitting device |
US8080811B2 (en) | 2007-12-28 | 2011-12-20 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing evaporation donor substrate and light-emitting device |
WO2009107548A1 (en) * | 2008-02-29 | 2009-09-03 | Semiconductor Energy Laboratory Co., Ltd. | Deposition method and manufacturing method of light-emitting device |
US8182863B2 (en) * | 2008-03-17 | 2012-05-22 | Semiconductor Energy Laboratory Co., Ltd. | Deposition method and manufacturing method of light-emitting device |
US7932112B2 (en) * | 2008-04-14 | 2011-04-26 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing light-emitting device |
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- 2005-10-03 JP JP2005289898A patent/JP4535387B2/ja not_active Expired - Fee Related
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- 2005-10-04 EP EP05109172A patent/EP1646094B1/en not_active Not-in-force
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US7223514B2 (en) | 2007-05-29 |
KR100793355B1 (ko) | 2008-01-11 |
CN1797713A (zh) | 2006-07-05 |
CN100388422C (zh) | 2008-05-14 |
EP1646094A1 (en) | 2006-04-12 |
US20060073406A1 (en) | 2006-04-06 |
JP2006108098A (ja) | 2006-04-20 |
EP1646094B1 (en) | 2009-04-08 |
KR20060030405A (ko) | 2006-04-10 |
DE602005013729D1 (de) | 2009-05-20 |
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