ELECTRON SOURCE, IMAGE FORMING DEVICE AND MANUFACTURE OF THESE ELECTRON SOURCE AND IMAGE FORMING DEVICE

摘要

PROBLEM TO BE SOLVED: To prevent wire breaking and cracking of wiring on an insulation belt, by providing a recessed part formed with a step difference in accordance with a number of insulation belt layers in the insulation belt. SOLUTION: In an insulation belt 4, 5 orthogonal to a wiring 3 connected to one element electrode 1 of a surface conduction electron emitting element, a recessed part 9a, 9b is provided so as to prevent overlapping with the other element electrode 2. In the recessed part 9a, 9b of the insulation belt 4, 5, a step difference 6 in accordance with number of insulation belt layers is provided, a wiring 7 connected to the element electrode 2 is formed. By forming the wiring 7 thus on the insulation belt 4, 5, the wiring 7 and the element electrode 2 can be directly electrically connected without generating wire breaking and cracking. Further, a plurality of the insulation belts 4, 5 are layered, the step difference 6 is provided in the recessed part 9a, 9b, so as to decrease a height per one step of the step difference, wire breaking and wire cracking can be more prevneted from being easily generated.