An image-forming apparatus, which consumes low electrical power and prevents discharge owing to the surfaces exposed onto the inside of a vacuum container at the time of image display, and can obtain a good image having high brightness, is disclosed. The image-forming apparatus comprises a rear plate provided with an electron source for emitting an electron, and a face plate provided with an image-forming member having an anode electrode, to which electric potential higher than the highest voltage to be applied to the electron source is applied, and a member for forming an image by being irradiated with electrons emitted from the electron source. And, a vacuum container is formed by arranging the rear plate and the face plate to be opposed to each other. At least a part of the surfaces exposed into the inside and the outside of the area in which the image-forming member is formed among the surfaces exposed into the vacuum container is covered with a high resistance film, and a sheet resistance value of one part of the high resistance film which is situated on the inside of the area where the image-forming member is formed is lower than that of another part of the high resistance film which is situated on the outside of the area where the image-forming member is formed.