Patent ID: 6897606
Filing Date: 2005-05-24
Classification: H01J

Abstract:
1. A fluorescent-substance light emitting element comprising: a cold cathode type emitter section for emitting electrons, a fluorescent-substance layer configured to emit light by collision with electrons emitted from the emitter section, and an anode section disposed to be opposed to the emitter section and having an anode electrode and the fluorescent-substance layer provided inside of the anode electrode, wherein a porous-substance layer, composed of an electrically insulative porous substance, is sandwiched between the emitter section and the anode section, the electrons emitted from the emitter section pass through the porous-substance layer and the fluorescent-substance layer is irradiated with the electrons that have passed through the porous-substance layer, and the porous substance has a solid skeletal part formed into a three-dimensional network shape and a hole extending continuously in the form of a mesh of the solid skeletal part.