Electron emitting element and method for producing the same

A method for producing an electron emitting element, which includes:

• a first electrode;
• an insulating layer formed on the first electrode and having an opening of through hole;
• a second electrode formed on the insulating layer, the second electrode being disposed so as to cover at least the opening and face the first electrode via the opening;
• and a fine particle layer disposed between the first electrode and the second electrode, the fine particle layer being composed of insulating fine particles and conductive fine particles, wherein the insulating layer is disposed between the first electrode and the fine particle layer, or between the second electrode and the fine particle layer, when a voltage is applied between the first electrode and the second electrode, electrons are emitted from the first electrode and accelerated in the fine particle layer to pass through the second electrode, the method comprising the steps of:
• forming the insulating layer having an opening on the first electrode;
• forming the fine particle layer composed of insulating fine particles and conductive fine particles on the insulating layer so as to fill the opening;
• and forming the second electrode on the insulating layer, the second electrode being disposed so as to face the first electrode via the opening and partially overlap the insulating layer.