▎ 摘　　要

NOVELTY - The graphene is a separate graphene material with negative electronic affinity. The field emitting cathode is a strip made of graphene and is arranged in the middle of the glass tube along axial direction. The anode conductive film is metal aluminum or metal silver conductor. USE - Graphene used as field emitting cathode material of electro luminance light source e.g. graphene cold cathode fluorescent tube (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for graphene cold cathode fluorescent tube. DESCRIPTION OF DRAWING(S) - The drawing shows the schematic view of the graphene.