| 摘要 |
<p>PURPOSE:To provide a surface conduction type electron emitting element, in which a position and shape of an electron emitting part can be controlled, and a picture forming device of using this element. CONSTITUTION:In an electron emitting element, electrodes 3, 4 are formed on an insulating substrate 1, to further form a fine grain film 5 of providing a step differenced part 2 with partly different film thickness. When electrification treatment is applied to the fine grain film 5, an electron emitting part 6 is linearly formed along the step differenced part 2. Consequently, by arbitrarily designing a shape of the step differenced part 2, an electron emission amount, electron emission efficiency, etc., can be controlled, and in the case of using for a picture forming device, a picture display of uniform brightness, shape and luminance of phosphor can be obtained.</p> |
