Cold cathode light emitting device, image display and method of manufacturing cold cathode light emitting device

A cold cathode light emitting device emitting light by electrons extracted from a cold cathode, comprising:

• a plurality of first electrodes;
• a plurality of insulating layers laminated in said plurality of first electrodes;
• a plurality of second electrodes provided on said plurality of insulating layers to intersect said plurality of first electrodes with said plurality of insulating layers interposed therebetween, for extracting electrons from said plurality of first electrodes;
• and
• a third electrode opposed to said plurality of second electrodes for emitting light upon receipt of said electrons, with a voltage for accelerating said electrons being applied between said third electrode and said plurality of first electrodes, wherein
• at least one hole is provided at intersections of said plurality of first electrodes and said plurality of second electrodes to extend through said plurality of second electrodes and said plurality of insulating layers to reach a surface of said plurality of first electrodes,
• said at least one hole has a first diameter d1 at a position where said plurality of insulating layers are in contact with said plurality of first electrodes and a second diameter d2 at a position where said plurality of insulating layers are in contact with said plurality of second electrodes, where d2 is greater than d1, and
• a nanofiber-structure layer is provided on said plurality of first electrodes in an opening portion having said first diameter d1 in said at least one hole.