Electron beam generation device having spacer

An image display apparatus comprising:

• a first substrate provided with an electron source which has a plurality of electron-emitting devices each having an electron-emitting region and a plurality of wiring electrodes for supplying a drive signal to the electron-emitting devices, the electron-emitting regions being arranged so as to have a substantially equal space with respect to each other;
• a second substrate disposed to be opposed to the first substrate and having an acceleration electrode to which an acceleration voltage is applied and on which the electrons emitted from the electron-emitting regions arrive, the acceleration voltage acting on the emitted electrons to accelerate them;
• and
• one or more spacers disposed between the first substrate and the second substrate, the spacers being disposed on some of the plurality of wiring electrodes,
• wherein spaces among the plurality of wiring electrodes are partially varied so that the electrons emitted from each of the electron-emitting regions in the electron-emitting devices arrive at a region on the acceleration electrodes, which is positioned substantially right above that electron-emitting region.