Electron emitting element, electron emitting device, light emitting device, image display device, air blowing device, cooling device, charging device, image forming apparatus, electron-beam curing device, and method for producing electron emitting element

A method for producing an electron emitting element that includes:

• an electrode substrate;
• a thin-film electrode;
• and
• an electron acceleration layer sandwiched between the electrode substrate and the thin-film electrode,
• the electron emitting element (i) accelerating electrons in the electron acceleration layer at a time when a voltage is applied between the electrode substrate and the thin-film electrode and (ii) emitting the electrons from the thin-film electrode,
• the method comprising the step of forming the electron acceleration layer,
• the step including the sub-steps of:
• forming, on the electrode substrate, a binder component layer by applying a dispersion solution of a binder component in which dispersion solution insulating fine particles are dispersed;
• and
• applying, on the binder component layer, a conductive fine particle dispersion solution in which conductive fine particles having a smaller average particle diameter than an average particle diameter of the insulating fine particles are dispersed in a solvent.

A method for producing an electron emitting element that includes:

• an electrode substrate;
• a thin-film electrode;
• and
• an electron acceleration layer including conductive fine particles and insulating fine particles, the electron acceleration layer being sandwiched between the electrode substrate and the thin-film electrode,
• the electron emitting element (i) accelerating electrons in the electron acceleration layer at a time when a voltage is applied between the electrode substrate and the thin-film electrode and (ii) emitting the electrons from the thin-film electrode, the method comprising the step of forming the electron acceleration layer,
• the step including the sub-steps of:
• forming, on the electrode substrate, a fine particle layer by applying an insulating fine particle dispersion solution in which the insulating fine particles are dispersed in a dispersion solvent, the fine particle layer including the insulating fine particles;
• and
• applying, on the fine particle layer, a conductive fine particle dispersion solution by an ink jet method, in which conductive fine particle dispersion solution the conductive fine particles are dispersed in a dispersion solvent.