JP2009212075A - 電子放出源、これを適用した電子装置及び電子放出源の製造方法 - Google Patents
電子放出源、これを適用した電子装置及び電子放出源の製造方法 Download PDFInfo
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- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
- H01J31/123—Flat display tubes
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- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/022—Manufacture of electrodes or electrode systems of cold cathodes
- H01J9/025—Manufacture of electrodes or electrode systems of cold cathodes of field emission cathodes
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
【解決手段】 基板と別途に製造されたカソードを備え、カソードには、接着層によって固定された針状電子放出物質、例えば、カーボンナノチューブ層が設けられる電子放出源である。カーボンナノチューブ層は、懸濁液フィルタリング法を利用して形成され、後続する電子放出物質層の表面処理によって電子放出密度が上昇する。
【選択図】図1
Description
11 板状カソード
11a スカート部分
12,12a 接着層
13 CNT層
14 カソードベース
14a 突出部
15 固定部材
Claims (26)
- 導電性板状カソードと、
前記カソードの表面に形成された針状電子放出物質層と、
前記カソードを支持するベースと、
前記ベースに前記カソードを固定する固定要素と、を備える電子放出源。 - 前記カソードは、電気的抵抗を有することを特徴とする請求項1に記載の電子放出源。
- 前記カソードの一側面及び他側面のうち少なくとも何れか一側に接着層が形成されていることを特徴とする請求項1または2に記載の電子放出源。
- 前記カソードは、前記ベースに対して溶接されていることを特徴とする請求項1または2に記載の電子放出源。
- 前記ベースには、前記針状放出物質層に対応する突出部が形成されており、前記固定要素は、前記突出部に前記カソードのエッジ部分を圧着固定する固定部材であることを特徴とする請求項1に記載の電子放出源。
- 前記固定要素は、前記ベースと共に相補的結合構造を有することを特徴とする請求項1に記載の電子放出源。
- 前記電子放出物質層は、SW(Single−Walled) CNT、DW(Double Walled) CNT、MW(Multi−Walled) CNT、ナノワイヤのうち少なくとも何れか一つを含むことを特徴とする請求項1ないし6のうち何れか1項に記載の電子放出源。
- 前記カソードは、アルミニウム、銅、ニッケルのうち何れか一つを含有する伝導性シート及び伝導性ファブリックのうち何れか一つで形成されたことを特徴とする請求項1に記載の電子放出源。
- テンプレートに電子放出物質層を形成する工程と、
前記CNT層を接着層が形成された板状カソードに転写する工程と、
前記カソードに転写された電子放出物質層を表面処理して、電子放出物質をカソードに対して組立てる整列工程と、を含む電子放出源の製造方法。 - 前記テンプレートは、濾過性を有する濾過テンプレートであることを特徴とする請求項9に記載の電子放出源の製造方法。
- 前記テンプレート上に電子放出物質層を形成する工程は、
テンプレート上に電子放出物質が分散された懸濁液を供給する工程と、
前記懸濁液を乾燥させる工程と、を含むことを特徴とする請求項9または10に記載の電子放出源の製造方法。 - 前記表面処理工程は、接着性テープを利用した方法、ローララビング法、イオンビーム照射法、プラズマ処理法、レーザビーム照射法、中性子ビーム照射法、水素ガス露出法のうち何れか一つを利用することを特徴とする請求項9に記載の電子放出源の製造方法。
- 前記懸濁液は、溶媒と界面活性剤とを含むことを特徴とする請求項11に記載の電子放出源の製造方法。
- 基板の上面に固定されるカソードと、
前記カソードの上面に形成される一定間隔に形成される多数の電子放出物質層と、
前記電子放出物質層を前記カソードに固定する固定要素と、
前記基板に離隔されている前面板と、
前記電子放出物質層に対向する前記前面板の内面に形成されるアノードと、
前記アノードの表面に形成される蛍光体層と、
前記カソードと蛍光体層との間に位置して電子放出物質層から電子を抽出するグリッドと、を備えるディスプレイ。 - 前記カソードは、電気的抵抗を有することを特徴とする請求項14に記載のディスプレイ。
- 前記カソードの一側面及び他側面のうち少なくとも何れか一側に前記電子放出物質層を固定する接着層が形成されていることを特徴とする請求項14または15に記載のディスプレイ。
- 前記カソードは前記ベースに対して溶接されていることを特徴とする請求項14または15に記載のディスPELEI。
- アノードが形成される前面板とカソードが形成される基板とを備えるディスプレイの製造方法において、
バンド状のテンプレートに多数の電子放出物質層を一定間隔に形成する工程と、
前記電子放出物質層を接着層が形成されたバンド状のカソードに転写する工程と、
前記カソードに転写された電子放出物質層を表面処理して電子放出物質をカソードに対して組立てる表面処理工程と、
前記カソードを背面板に固定する工程と、を含むディスプレイの製造方法。 - 前記テンプレートは、濾過性を有する濾過テンプレートであることを特徴とする請求項18に記載のディスプレイの製造方法。
- 前記テンプレート上に多数の電子放出物質層を形成する工程は、
テンプレート上に電子放出物質が分散された懸濁液を供給する工程と、
前記懸濁液を乾燥させる工程と、を含むことを特徴とする請求項18または19に記載のディスプレイの製造方法。 - 前記カソードの一側面及び他側面のうち少なくとも何れか一側に接着層が形成されていることを特徴とする請求項18に記載のディスプレイの製造方法。
- 前記表面処理工程は、接着性テープを利用した方法、ローララビング法、イオンビーム照射法、プラズマ処理法、レーザビーム照射法、中性子ビーム照射法、水素ガス露出法のうち何れか一つを利用することを特徴とする請求項18に記載のディスプレイの製造方法。
- 前記懸濁液は、溶媒と界面活性剤とを含むことを特徴とする請求項20に記載のディスプレイの製造方法。
- 前記懸濁液を供給する工程は、ノズルを利用して前記懸濁液を供給することを特徴とする請求項20に記載のディスプレイの製造方法。
- 前記懸濁液を供給する工程は、前記テンプレートに電子放出物質層に対応する貫通孔を有するマスクを付着させた後、前記懸濁液を供給することを特徴とする請求項20に記載のディスプレイの製造方法。
- 請求項1ないし8のうち何れか1項に記載の電子放出源を含む電子装置。
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US20090218930A1 (en) | 2009-09-03 |
US20130295815A1 (en) | 2013-11-07 |
KR20090093655A (ko) | 2009-09-02 |
KR100922399B1 (ko) | 2009-10-19 |
EP2096659B1 (en) | 2012-12-26 |
JP4843001B2 (ja) | 2011-12-21 |
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