| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a field emission element which can be mass-produced with a high yield. SOLUTION: An anode 7 composed of an anode conductor 5 and a phosphor layer 6 is provided inside an anode substrate 4 of an envelope 2. This field emission element 8 is formed inside a cathode substrate 3. The field emission element 8 has a conductive electrode 9, a rugged layer 10, an emission layer 11, and a gate electrode 12. The rugged layer 10 is composed of conductive particles, resistive particles, insulation particles and the like. The emission layer 11 is composed of a carbon nanotube and the like. The electric field produced by the gate electrode 12 is concentrated at the edges of the rugged layer 10 covered with the emission layer 11, and then field electrons are emitted from the emission layer 11. The electrons pass through the gate electrode 12 so as to collide with the phosphor layer 6 of the anode 7, resulting in light emission from the phosphor layer 6.</p> |
