JP5520902B2 - 発光装置の作製方法 - Google Patents
発光装置の作製方法 Download PDFInfo
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- JP5520902B2 JP5520902B2 JP2011197425A JP2011197425A JP5520902B2 JP 5520902 B2 JP5520902 B2 JP 5520902B2 JP 2011197425 A JP2011197425 A JP 2011197425A JP 2011197425 A JP2011197425 A JP 2011197425A JP 5520902 B2 JP5520902 B2 JP 5520902B2
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Description
このような不具合を防止するために、従来のインクジェット方式では、固形物による目詰まりを防止するために、頻繁にインクヘッドをクリーニングする必要に駆られていた。
は初期状態であり、被形成面700にパターンを形成するに当たっては、図7(B)に示すようにこのインクヘッド701が被形成面に近接し、組成物702の吐出が開始する。
この画素部は、ゲート線804、データ線805、電源供給線806、画素電極811、半導体層809、810を有し、これらにより薄膜トランジスタ820、830が形成されている。画素電極811は薄膜トランジスタ830と接続している。そしてマトリクス状に配列して、全体として画素部を形成している。有機化合物層は図3又は図4で説明するインクヘッドを用いて形成され、一滴毎に吐出される組成物を画素電極上で連続させて、全体として線状の有機化合物層を形成している。
など酸素や水蒸気に対しバリア性の高い材料を用いて形成する。
さらに、接着材を用いてカバー材1720で封止されている。熱や外力などによる変形に耐えるためカバー材1720は基板1700と同じ材質のもの、例えばガラス基板を用いることが望ましく、サンドブラスト法などにより図17に示す凹部形状(深さ3〜10μm)に加工する。さらに加工して乾燥剤1721が設置できる凹部(深さ50〜200μm)を形成することが望ましい。なお、1708はソース側駆動回路1701及びゲート側駆動回路1703に入力される信号を伝送するための配線であり、外部入力端子となるFPC(フレキシブルプリントサーキット)1709からビデオ信号やクロック信号を受け取る。
その全てをインクジェット方式の印刷技術で形成しても良いし、スピン塗布法とインクジェット方式を組み合わせて形成しても良い。
に示すディスプレイは中小型または大型のもの、例えば5〜20インチの画面サイズのものである。また、このようなサイズの表示部を形成するためには、基板の一辺が1mを越えるものを用い、多面取りを行って量産することが好ましい。
Claims (3)
- 有機化合物で発光層が形成される発光装置の作製方法であって、
基板上にマトリクス状に配列する複数の画素電極を形成し、
前記基板にインクヘッドを近接させ、前記インクヘッドのノズルから発光性を有する有機化合物を含む組成物を一滴毎に吐出させつつ、吐出された前記組成物が重なり合うようにして前記複数の画素電極に渡って連続する線状の有機化合物層を形成する工程を有し、
前記インクヘッドから前記組成物を吐出すると同時に、前記インクヘッドの前記ノズルの外周部に同心円状に設けられた第2のノズルから不活性気体を前記有機化合物層が形成される基板面に向けて噴出させて前記有機化合物層を平滑化することを特徴とする発光装置の作製方法。 - 有機化合物で発光層が形成される発光装置の作製方法であって、
基板上にマトリクス状に配列する複数の画素電極を形成し、
前記基板にインクヘッドを近接させ、前記インクヘッドのノズルに設けられたニードルバルブを開いて発光性を有する有機化合物を含む組成物を連続的に吐出させ、吐出された前記組成物を前記複数の画素電極に渡って連続する線状又はストライプ状の有機化合物層を形成する工程を有し、
前記インクヘッドから前記組成物を吐出すると同時に、前記インクヘッドの前記ノズルに近接して設けられた第2のノズルから不活性気体を前記有機化合物層が形成される基板面に向けて噴出させて前記有機化合物層を平滑化することを特徴とする発光装置の作製方法。 - 請求項1または2において、
前記組成物は、π共役ポリマー系材料をホスト材、π共役系配位子を有する金属キレート錯体をゲスト材として用い、前記ホスト材及び前記ゲスト材を溶媒に分散させたものであることを特徴とする発光装置の作製方法。
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JP2001206751A Division JP2003022892A (ja) | 2001-07-06 | 2001-07-06 | 発光装置の製造方法 |
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JP2013241460A Division JP2014056839A (ja) | 2013-11-22 | 2013-11-22 | 装置 |
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JP5520902B2 true JP5520902B2 (ja) | 2014-06-11 |
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JP2001060493A (ja) * | 1999-08-23 | 2001-03-06 | Seiko Epson Corp | インクジェット記録方法を用いた有機発光素子の製造方法 |
GB2360489A (en) * | 2000-03-23 | 2001-09-26 | Seiko Epson Corp | Deposition of soluble materials |
JP2001341296A (ja) * | 2000-03-31 | 2001-12-11 | Seiko Epson Corp | インクジェット法による薄膜形成方法、インクジェット装置、有機el素子の製造方法、有機el素子 |
JP4048687B2 (ja) * | 2000-04-07 | 2008-02-20 | セイコーエプソン株式会社 | 有機el素子および有機el素子の製造方法 |
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