Method of manufacturing electron-emitting source

摘要

A film ( 7 ) is formed by electrodeposition, thermal CVD, or spraying. After that, the film is irradiated with a laser beam. Carbon nanotubes that form the film ( 7 ) are disconnected by laser irradiation, so that the density of the carbon nanotubes is optimized. When the film ( 7 ) is formed in this manner, stable emission can be obtained from a cathode structure ( 5 ).