Patent ID: 7843121

Claim:
A field emission double-plane light source comprising: a first anode; a second anode, each of the first and second anodes comprising an anode substrate, an anode conductive layer, and a fluorescent layer, the anode conductive layer being formed on a surface of the anode substrate, the fluorescent layer being created on the anode conductive layer; and a cathode arranged between the first and second anodes and separated therebetween, the cathode comprising a conductive network, the network having two opposite surfaces each facing a respective one of the first and second anodes, each of the surfaces of the network having an electron emission layer thereon, each electron emission layer respectively facing a corresponding fluorescent layer of one of the first and second anodes, each of the electron emission layers comprising a glass matrix, and a plurality of carbon nanotubes, metallic conductive particles, and getter powders dispersed in the glass matrix.