发明授权
- 专利标题: Electron-emitting device and image forming apparatus
- 专利标题(中): 电子发射器件和图像形成装置
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申请号: US09909016申请日: 2001-07-20
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公开(公告)号: US06885156B2公开(公告)日: 2005-04-26
- 发明人: Hisao Tajima , Toshimitsu Kawase
- 申请人: Hisao Tajima , Toshimitsu Kawase
- 申请人地址: JP Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Fitzpatrick,Cella, Harper & Scinto
- 优先权: JP2000-222936 20000724; JP2001-212033 20010712; JP2001-218314 20010718
- 主分类号: H01J9/32
- IPC分类号: H01J9/32 ; H01J29/92 ; H01J31/12 ; G09G3/10
摘要:
Abnormal discharge of an electron-emitting apparatus is suppressed and a thin electric earth connection structure is realized at a low cost. An image-forming apparatus has: a rear plate formed with electron-emitting devices; a face plate facing the rear plate, the face plate being formed with a phosphor which displays an image by emitting light upon incidence of an electron beam emitted from the electron-emitting device and an electrode applied with a voltage to accelerate the electron beam; a frame sandwiched and coupled between the rear and face plates and constituting a vacuum container together with the rear and face plates; a high voltage introducing member for introducing a high voltage from a voltage source; and an independent wire which is electrically independent from the high voltage introducing member and formed surrounding a high voltage area in the vacuum container, wherein a resistor film is formed between the high voltage introducing member and the independent wire. The wire is formed inside and outside of the vacuum container and is connected to an earth potential.
公开/授权文献
- US20020021081A1 Electron-emitting device and image forming apparatus 公开/授权日:2002-02-21
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