Image display apparatus with particular ion pump location

Details Image display apparatus with particular ion pump location Image display apparatus with particular ion pump location

2005-08-15

2008-11-04

Ton, Toan (Department: 2889)

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

C313S496000, C313S153000, C313S359100, C313S361100

Reexamination Certificate

active

07446467

ABSTRACT:
An image display apparatus for forming an image in an image displaying region provided with a vacuum chamber having an electron source substrate and an image forming substrate has an ion pump for evacuating the vacuum chamber by an action of a magnet-filed-forming portion through an aperture portion formed in the electron source substrate or an image displaying substrate, wherein the magnet-filed-forming portion is arranged so that a shadow formed by perpendicularly projecting the magnet-filed-forming portion onto the electron source substrate or the image forming substrate can be located outside the image displaying region.

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