Patent ID: 8896196

Claim:
A field emission flat light source, comprising: an anode member, a cathode member, a light-transmittable panel, and a isolater, wherein the anode member and the light-transmittable panel are in a flat plate shape, wherein the anode member is disposed in a spaced apart relationship with said light-transmittable panel and in a parallel relationship with the cathode member, and wherein the anode member and the light-transmittable panel is separated by the isolater; wherein the anode member, the light-transmittable panel, and the isolater cooperatively form a vacuum confined space, the cathode member being suspended in the vacuum confined space; wherein the anode member comprises an anode substrate, a metal reflective layer positioned above the anode substrate, an emitting layer positioned above the metal reflective layer, and a substantially singe anode electrode formed of a material selected from a group including Cr, Mo, and ITO, and positioned in a predetermined relationship with said metal reflective layer and in a spaced apart relationship with said light-transmittable panel; and wherein the cathode member comprises a plurality of cathode substrates which are separately disposed, and an electron emitter formed on surfaces of said cathode substrates.