PURPOSE: To eliminate defective landing of electron beam and obtain high quality image having no defect by using non-magnetic material for electrode and structural parts of image display device wherein at least the display surface is housed in a transparent glass.

CONSTITUTION: A display device is composed of a rear surface electrode 1, a line cathode 2 as the electron beam source, vertical focusing electrodes 3a, 3b, a vertical deflection electrode 4, a beam flow control electrode 5, a horizontal focusing electrode 6, a horizontal deflection electrode 7, a beam acceleration electrode 8 and a screen plate 9 arranged in this sequence from the rear side. These are housed in a flat and vacuum glass bulb. For these electrode materials, non magnetic materials such as non magnetic stainless, copper alloy and titanium alloy are used. Thereby, defective landing of electron beam can be eliminated and high quality image having no defect can be obtained.