| 摘要 |
<p>PURPOSE:To obtain the quality equal to or better than the electron emitting element produced by a forming, and to make it possible to control the performance by providing in dispersing minute particles of at least two or more of different substances between electrodes which have a minute interval. CONSTITUTION:Electrodes 2 and 3 which consist of a low resistant substance for applying voltage are provided placing a minute interval, on an insulator of a glass or the like, and between them, a discontinuous electron emitting member 4 in which at least two or more sorts of minute particles are dispersed is formed. By dispersing minute particles 5 of the particle diameter 3000Angstrom or more at the ratio 20% to the whole minute particle numbers, or minute particle of the particle diameter less than 200Angstrom at the ratio 20% to the whole minute particle numbers, the electron emitting efficiency can be further improved, or the driving voltage can be controlled.</p> |
