Patent ID: 7965027

Claim:
An image display apparatus, comprising: an airtight container having an inner space, a light-emitting member, for emitting light by irradiation with an electron beam, located in the inner space, an electrode to be maintained with anode potential located in the inner space, an electron-emitting device, for emitting the electron beam, located in the inner space, and an electroconductive film which is distant from an outer periphery of the electrode and is arranged to surround the outer periphery of the electrode; wherein the electroconductive film has an end portion opposed to the outer periphery of the electrode, and at least a part of an edge of the end portion is covered with a dielectric film, and wherein, when an interval between the light-emitting member and the electron-emitting device is given by H [μm], the dielectric film covers the electroconductive film over a length given by L [μm] from the edge of the electroconductive film in a direction distant from the first electrode, where L>0.025×H +15.