Patent ID: 6965194
Filing Date: 2005-11-15
Classification: H01J,Y10S

Abstract:
1. A vacuum fluorescent display comprising: a front glass member which has light transmission properties at least partly; a substrate opposing said front glass member through a vacuum space; a phosphor film formed on a surface of said front glass member which opposes said substrate and having a predetermined large-area display pattern; a surface electron-emitting portion comprising a coating film formed of a large number of nanotube fibers, said surface electron-emitting portion is mounted on said substrate to oppose said phosphor film and having an electron-emitting surface corresponding to the large-area display pattern; an electron extracting electrode arranged in the vacuum space between said surface electron-emitting portion and said phosphor film to be spaced apart from said surface electron-emitting portion by a predetermined distance; and an insulating support member formed on said substrate having partitions for supporting said electron extracting electrodes and dividing the electron-emitting surface of said surface electron-emitting portion into a plurality of regions, said partitions being made of material from which a larger number of secondary than that of bombarded electrons are emitted; wherein said partitions divide the electron-emitting surface of said surface electron-emitting portion into a plurality of electron-emitting regions of almost the same shape; said insulating support member has an opening corresponding to the large-area display pattern, and said partitions are integrally formed with said insulating support member so as to divide the opening into a plurality of slit-like divisional openings.