To provide an inexpensive large plane field emission cold cathode without need for particular processing such as acumination of an electron emission part etc.
In this field emission cold cathode composed of an electron emission part 2a and an electrode for impressing voltage on the electron emission part 2a, the electron emission part 2a is made of a mixture of a carbon material and a carbon material easily emitting electrons. The carbon material and the carbon material easily emitting electrons (e.g. low work function material) are stirred in a solvent and dispersed to be formed into paste. Thereafter, it is applied on a substrate 20 of metal, a semiconductor or an insulator, and baked in a vacuum or in an inert gas atmosphere, to form a film 21 which is used as the electron emission part 2a. Thus, the cold cathode enabling electron emission at low-voltage can be formed.
Yamamoto, Hirochika
