To provide a manufacturing method of an image display device, relaxing a stress which a base material receives from a jointing material along with heating/cooling of the jointing material and the base material, and easily suppressing cracks likely to be generated and developed from a corner part of the jointing material.
Between a pair of base materials which are to become a first substrate 12 having a plenty of electron emitting elements and a frame member 14, or a second substrate 13 having a fluorescent film to which electrons emitted from the electron emitting element are irradiated and which display images, and a frame member 14, arranged are jointing materials 3, 3' provided with a main part extending along the one base material which is to become the frame member in a closed state and an additional part thinner than the main part which branches from the main part as an extension line of a side composing the main part. Then, while the pair of the base material are pressed by each other and irradiation positions are moved along the jointing material, electromagnetic waves are irradiated to the main part, and the main part of the jointing material is melted and then is solidified to joint the pair of the base material by the jointing material.
MATSUMOTO SHINJI
SAITO ARIHIRO
Ishibashi Masayuki
Masaaki Ogata