发明名称 |
Electron beam apparatus and image display apparatus using the same |
摘要 |
The present invention provides an electron beam apparatus provided with an electron-emitting device which has a simple structure, shows high electron-emitting efficiency and stably works. This electron beam apparatus has an insulating member (3) and a gate (5) formed on a substrate (1), a recess portion (7) formed in the insulating member, a protruding portion that protrudes from an edge of the recess portion toward the gate and is provided on an end part of a cathode (6) opposing to the gate, which is arranged on the side face of the insulating member and makes an electric field converge on an end part in the width direction of the protruding portion to make an electron emitted therefrom.
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申请公布号 |
EP2109132(A2) |
申请公布日期 |
2009.10.14 |
申请号 |
EP20090156252 |
申请日期 |
2009.03.26 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
TSUKAMOTO, TAKEO;MORIGUCHI, TAKUTO;TAKEUCHI, EIJI |
分类号 |
H01J1/312;H01J3/02;H01J9/02;H01J31/12 |
主分类号 |
H01J1/312 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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