An electron beam apparatus in which a spacer having a high-resistance film
coating a surface of a base material is inserted between a rear plate
having electron emitting elements and row-direction wires, and a
faceplate having a metal back. The row-direction wires and the metal back
are electrically connected via the high-resistance film. An electric
field near an electron emitting element near the spacer is maintained to
substantially constant irrespective of the positional relationship
between the spacer and the electron emitting element near the spacer.
When a sheet resistance value of the high-resistance film on a first
facing surface of the spacer that faces a row-direction wire is
represented by R1, and a sheet resistance value of the high-resistance
film on a side surface adjacent to the electron emitting element is
represented by R2, R2/R1 is 10 to 200.