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US 8,319,414 B2Granted
Image display apparatus with low-potential electrode set
AssigneeCanon Kabushiki Kaisha
InventorTakashi Date
Life of this patent
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Abstract
An image display apparatus includes a face plate including a low-potential electrode and a plate-like spacer including a longitudinal-direction end. The low-potential electrode is set at a lower potential than that of a resistive anode and is disposed between the resistive anode and a feed electrode. The longitudinal-direction end of the plate-like spacer is disposed between the resistive anode and the feed electrode so as to overlap the low-potential electrode.
Claims6
An image display apparatus comprising:
- a rear plate including an electron-emitting device;
- a face plate including a resistive anode and a feed electrode, the feed electrode being disposed outside of the resistive anode so as to surround the resistive anode and connect the resistive anode and a power supply, the face plate facing the rear plate such that the resistive anode faces the electron-emitting device, a resistance of the resistive anode being greater than a resistance of the feed electrode;
- and
- a plate-like spacer disposed between the rear plate and the face plate, the plate-like spacer having a longitudinal-direction end disposed outside of the resistive anode so as to lie across the resistive anode,
- wherein the face plate further includes a low-potential electrode set at a lower potential than that of the resistive anode, the low-potential electrode being disposed between the resistive anode and the feed electrode, and
- the longitudinal-direction end of the plate-like spacer being disposed between the resistive anode and the feed electrode so as to overlap the low-potential electrode.
3 more elements
Dependencies are inferred from the claim text.