In an image display apparatus including: an electron source; a target
having a phosphor and an anode electrode, the target emits light for
display by being illuminated with electrons from the electron source; and
an intermediate electrode disposed in the midpoint between the electron
source and the target, the intermediate electrode is applied with a
potential greater than that applied to the anode electrode. Thereby,
halation caused by back scattering electrons reentering a phosphor is
reduced.