Patent ID: 7629737

Claim:
A fluorescent display device comprising: a front glass at least part of which is translucent; a substrate which is formed of an insulating member arranged to oppose said front glass, said front glass and said substrate constituting part of a vacuum envelope; a cathode which is disposed on said substrate; an electron-emitting layer which comprises a carbon nanotube and is formed on a surface of said cathode; an electron extracting electrode which is arranged between said substrate and said front glass to be spaced apart from said cathode; a phosphor film and an anode which stack on a surface of said front glass which opposes said substrate; a conductive layer which is formed between said cathode and said substrate, wherein said cathode comprises a plurality of split electrodes which extend on said substrate to be parallel to each other in a first direction and are arranged at predetermined intervals in a second direction perpendicular to the first direction, said electron extracting electrode comprises a plurality of split electrodes which extend parallel to each other in the second direction and are arranged at predetermined intervals in the first direction, and said conductive layer comprises a plurality of split conductive layers which are formed between said substrate and said plurality of split electrodes and insulated and isolated from each other for each of said plurality of split electrodes.