Field emission double-plane light source and method for making the same

A field emission double-plane light source comprising:

• a first anode;
• a second anode, each of the first and second anodes comprises an anode substrate, an anode conductive layer, and a fluorescent layer, the anode conductive layer located on a surface of the anode substrate, the fluorescent layer located on the anode conductive layer;
• and
• a cathode arranged between the first and second anodes, the cathode comprising a metallic based network, the metallic based network comprising a plurality of metal wires crossed with each other defining a plurality of thorough openings and having two opposite surfaces, each opposite surface of metallic based network having one electron emission layer thereon, each electron emission layer is opposite to a corresponding fluorescent layer of one of the first and second anodes, wherein each of the electron emission layers comprises a glass matrix, and a plurality of carbon nanotubes, metallic conductive particles, and getter powders dispersed in the glass matrix.