Invention Grant
- Patent Title: Electron-emitting device, electron source using the same, image display apparatus, and information displaying and reproducing apparatus
- Patent Title (中): 电子发射器件，使用其的电子源，图像显示装置和信息显示和再现装置
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Application No.: US11791785Application Date: 2005-12-21
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Publication No.: US07843118B2Publication Date: 2010-11-30
- Inventor: Koki Nukanobu , Takuto Moriguchi , Keisuke Yamamoto
- Applicant: Koki Nukanobu , Takuto Moriguchi , Keisuke Yamamoto
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2004-379955 20041228
- International Application: PCT/JP2005/024013 WO 20051221
- International Announcement: WO2006/070849 WO 20060706
- Main IPC: H01J9/02
- IPC: H01J9/02 ; H01J1/62
Abstract:
An electron-emitting device is provided with improved electron emitting efficiency. An electron-emitting device includes first and second electroconductive films disposed on a surface of a substrate in opposition to each other to form a gap between ends of the first and second electroconductive films. The end of the first electroconductive film includes a portion the minimum distance d1 from which to the second electroconductive film is 10 nm or less. Let d2 denote a minimum distance between the end of the first electroconductive film which is away from the portion the minimum distance d1 from which to the second electroconductive film is 10 nm or less by the minimum distance d1 and the end of the second electroconductive film. The relation of d2/d1≧1.2 is satisfied.
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