发明授权
US07511425B2 Image display apparatus having ion pump and electron-emitting devices in communication via mesh or stripe shaped member
失效
具有离子泵的图像显示装置和通过网状或条状部件连通的电子发射装置
- 专利标题： Image display apparatus having ion pump and electron-emitting devices in communication via mesh or stripe shaped member
- 专利标题（中）： 具有离子泵的图像显示装置和通过网状或条状部件连通的电子发射装置
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申请号： US11210814申请日： 2005-08-25
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公开(公告)号： US07511425B2公开(公告)日： 2009-03-31
- 发明人: Hisanori Tsuda , Masaru Kamio , Ihachiro Gofuku , Yasue Sato , Yoshiyuki Shimada , Hiromasa Mitani , Kazuyuki Seino , Takashi Nishimura
- 申请人： Hisanori Tsuda , Masaru Kamio , Ihachiro Gofuku , Yasue Sato , Yoshiyuki Shimada , Hiromasa Mitani , Kazuyuki Seino , Takashi Nishimura
- 申请人地址： JP Tokyo JP Tokyo
- 专利权人： Canon Kabushiki Kaisha,Kabushiki Kaisha Toshiba
- 当前专利权人： Canon Kabushiki Kaisha,Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo JP Tokyo
- 代理机构： Fitzpatrick, Cella, Harper & Scinto
- 优先权： JP2004-248612 20040827
- 主分类号： H01J17/24
- IPC分类号： H01J17/24 ; H01J19/70
摘要：
In an image display apparatus composed of a vacuum container having an electron source composed of multiple electron-emitting devices and a phosphor film that is irradiated with an electron from the electron source to emit light for display, an ion pump for exhausting the vacuum container through a communicating path by virtue of an action of a magnetism forming portion is arranged. A magnetic shielding member is arranged in a space where the ion pump and the electron-emitting devices are in communication with each other, whereby an influence of a magnetic field generated by the magnetism forming portion on the trajectory of an electron emitted from any one of the electron-emitting devices and display luminance unevenness incidental to the influence are removed.
公开/授权文献
- US20060043866A1 Image display apparatus 公开/授权日：2006-03-02