JP4400138B2 - 配線パターンの形成方法 - Google Patents
配線パターンの形成方法 Download PDFInfo
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- JP4400138B2 JP4400138B2 JP2003290656A JP2003290656A JP4400138B2 JP 4400138 B2 JP4400138 B2 JP 4400138B2 JP 2003290656 A JP2003290656 A JP 2003290656A JP 2003290656 A JP2003290656 A JP 2003290656A JP 4400138 B2 JP4400138 B2 JP 4400138B2
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Description
以下、本発明のバンクの形成方法について図面を参照しながら説明する。図1は、本発明のバンクの形成方法に用いられるバンク形成装置の一実施形態を示す概略構成図である。図1において、バンク形成装置10は、所定の波長を有するレーザ光束を射出するレーザ光源11と、処理対象である基材1を支持するステージ12とを備えている。基材1の上面には昇華性材料を含む昇華層2が設けられている。レーザ光源11及び基材1を支持するステージ12はチャンバ14内に配置されている。チャンバ14には、このチャンバ14内のガスを吸引可能な吸引装置13が接続されている。本実施形態では、レーザ光源11として近赤外半導体レーザ(波長830nm)が使用される。
基材1としてポリエチレンテレフタレート(PET)製シートを用い、そのPET製シート上に光熱変換層4を設け、その光熱変換層4上に昇華層2を設けた。そして、そのシートを回転ドラムに保持させ、回転ドラムを130rpmで回転しつつ、シートに対して出力11Wの近赤外半導体レーザ装置より波長830nmのレーザ光を照射した。すると、昇華層2の昇華性色素が消失した。そして、その光照射領域に対応する領域の昇華性材料が除去されたかどうかを、テトラデカンに対する接触角を測定することで確認した。光照射前の昇華層2のテトラデカンに対する接触角は49度であったが、光照射後の昇華性色素消失領域の接触角は7度であり、このことから、レーザ光照射によって昇華層2の一部が除去されたことを確認できた。
以下、上記説明した方法により形成されたバンクB、Bを使って基材1上に配線パターンを形成する方法について説明する。図7は、形成されたバンクBを使って基材1上に配線パターンを形成する方法を示す模式図である。本実施形態では、配線パターン形成用材料を基材1上に配置するために、配線パターン形成用材料を含む機能液の液滴を吐出する液滴吐出法(インクジェット法)を用いる。バンクBは、基材1上に予め設定された配線パターン形成領域を区画するように設けられている。液滴吐出法では、吐出ヘッド20と基材1とを対向させた状態で、バンクB、B間の溝部3に対して配線パターン形成用材料を含む機能液の液滴が吐出ヘッド20より吐出される。
次に、本発明の配線パターンの形成方法により形成された配線パターンを有する電気光学装置の一例として、プラズマディスプレイ(プラズマ表示装置)について図9を参照しながら説明する。図9は、アドレス電極511とバス電極512aとが製造されたプラズマディスプレイ500を示す分解斜視図である。このプラズマディスプレイ500は、互いに対向して配置されたガラス基板501とガラス基板502と、これらの間に形成された放電表示部510とから概略構成されている。
次に、本発明に係るバンクを使って液晶表示装置のカラーフィルタを製造する手順について、図10を参照しながら説明する。まず、図10(a)に示すように透明の基板(基材)Pの一方の面に対し、ブラックマトリックス(バンク)52を形成する。このブラックマトリックス52は、カラーフィルタ形成領域を区画するものであり、本発明に係るバンクの形成方法によって形成される。ブラックマトリクス(バンク)を形成するに際し、昇華性材料に黒色材料を使用するとともに、昇華性材料に光硬化性樹脂を混在させておくことで、光照射工程によりブラックマトリクスを硬化することができる。
次に、本発明に係るバンクを使って有機EL表示装置を製造する手順について、図11を参照しながら説明する。図11は、前記吐出ヘッド20により一部の構成要素が製造された有機EL表示装置の側断面図であり、まずこの有機EL表示装置の概略構成を説明する。なお、ここで形成される有機EL表示装置は、本発明における電気光学装置の一実施形態となるものである。図11に示すようにこの有機EL装置301は、基板(基材)311、回路素子部321、画素電極331、バンク部341、発光素子351、陰極361(対向電極)、および封止基板371から構成された有機EL素子302に、フレキシブル基板(図示略)の配線および駆動IC(図示略)を接続したものである。回路素子部321は基板311上に形成され、複数の画素電極331が回路素子部321上に整列している。そして、各画素電極331間にはバンク部341が格子状に形成されており、バンク部341により生じた凹部開口344に、発光素子351が形成されている。陰極361は、バンク部341および発光素子351の上部全面に形成され、陰極361の上には封止用基板371が積層されている。
以下、上記電気光学装置(液晶表示装置、有機EL表示装置、プラズマ表示装置等)を備えた電子機器の適用例について説明する。図12(a)は、携帯電話の一例を示した斜視図である。図12(a)において、符号1000は携帯電話本体を示し、符号1001は上記の電気光学装置を用いた表示部を示している。図12(b)は、腕時計型電子機器の一例を示した斜視図である。図12(b)において、符号1100は時計本体を示し、符号1101は上記の電気光学装置を用いた表示部を示している。図12(c)は、ワープロ、パソコンなどの携帯型情報処理装置の一例を示した斜視図である。図12(c)において、符号1200は情報処理装置、符号1202はキーボードなどの入力部、符号1204は情報処理装置本体、符号1206は上記の電気光学装置を用いた表示部を示している。図12(a)〜(c)に示す電子機器は、上記実施の形態の電気光学装置を備えているので、表示品位に優れ、明るい画面の表示部を備えた電子機器を実現することができる。
図13は、本発明に係るバンクを使ってマイクロレンズを形成する工程の一例を示す図である。
図13(a)に示すように、基材810上に、本発明に係るバンクの形成方法に基づいてバンク811が形成される。そして、そのバンク811、811間の溝部に対してレンズ材料を含む機能液812が吐出ヘッド20より吐出される。レンズ材料としては、透明且つ高屈折率の材料であることが好ましく、例えば、光硬化性や熱硬化性の樹脂、無機材料などが用いられる。本例では、硬化処理の低温化を図ること等を目的として、光硬化性の樹脂を用いる。なお、機能液812を吐出する工程の前に、バンク811に対して上述した撥液化処理を行うことが好ましい。次いで、図13(b)に示すように、基材810上に配置されたレンズ材料812を硬化させる。硬化処理としては、レンズ材料に対して所定波長の光を照射することにより行う。なお、レンズ材料として熱硬化性の樹脂を用いた場合、レンズ材料を所定の温度に加熱することにより硬化処理を行う。硬化処理により、バンク811によって区画された領域に凸状の曲面レンズ813が形成される。
図15は、本発明に係るバンクを使って、検査機としてのDNAチップを形成する実施形態を説明するための図であり、(a)は平面図、(b)及び(c)はA−A断面図である。なお、DNAチップに関する技術は、例えば、特開平10−168386号公報、特開2000−232883号公報などに記載されている。
図15(a)及び(b)において、本例のDNAチップは、基材900上に、図13を参照して説明した曲面レンズ901が設けられ、このレンズ901上に反応剤902が定着された構成からなる。また、レンズ901及び反応剤902は、本発明に係る形成方法により形成されたバンク903によって区画された領域に重ねて配置されている。DNAチップ用の反応剤としては、例えばDNA断片が用いられる。あらかじめ遺伝子配列の判明している数十から数百種類のDNA断片を溶液中に含ませ、対応するバンク903に固定する。さらに、本例のDNAチップは、図15(c)に示すように、基材900の裏側から光が入射し、レンズ901及び反応剤902を通過して取り出されるようになっている。本例のDNAチップの使用にあたっては、液状の遺伝子サンプル905を作成し、それをチップ上に配置する。サンプルに適合する遺伝子がある場合は、捕捉反応により反応剤902に反応し塩基配列が特定され、合成された蛍光染料により蛍光を発する。基体900の裏側から入射した光はレンズ901によって集光され、取り出される光の輝度が上がり、視認性が向上する。
Claims (5)
- 昇華性材料を含む昇華層が設けられた基材に対して光を照射し、前記昇華性材料を昇華させることで、前記基材上に該基材の所定領域を区画するバンクを形成し、
前記バンク間に配線パターン形成用材料を含む液滴を配置させて前記基材上に配線パターンを形成する方法であって、
光エネルギーを熱エネルギーに変換する光熱変換材料を含む光熱変換層が前記基材と前記昇華層との間に設けられていて、
前記バンク間に配線パターン形成用材料を含む液滴を配置した後、前記光熱変換層に光を照射して、前記配線パターン用材料に導電性を発現させることを特徴とする配線パターンの形成方法。 - 前記昇華層に、液体に対する親和性を調整する調整材料が混在されていることを特徴とする請求項1記載の配線パターンの形成方法。
- 前記液体に対する親和性がそれぞれ異なる複数の昇華層が積層されていることを特徴とする請求項2記載の配線パターンの形成方法。
- 前記基材上に、第1の昇華層と該第1の昇華層より撥液性を有する第2の昇華層とがこの順に積層されていることを特徴とする請求項3記載の配線パターンの形成方法。
- 前記基材の前記昇華層が設けられていない他方の面側から前記光を照射することを特徴とする請求項1〜4のいずれか一項記載の配線パターンの形成方法。
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US10/898,184 US7732003B2 (en) | 2003-08-08 | 2004-07-26 | Bank forming method, wiring pattern forming method, electro-optical device, and electronic apparatus |
CN2004100558616A CN1582091B (zh) | 2003-08-08 | 2004-08-04 | 贮格围堰及配线图案的形成方法,电光学装置及电子机器 |
KR1020040061942A KR100684702B1 (ko) | 2003-08-08 | 2004-08-06 | 뱅크의 형성 방법 및 배선 패턴의 형성 방법, 전기 광학장치 및 전자 기기 |
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