▎ 摘　　要

NOVELTY - The method involves manufacturing oxidation graphene dispersion solution from the graphite flake powder. The graphite flake is immersed in the solvent. The oxidation graphene dispersion solution is restored through a wet process. The graphene dispersion solution is coated on graphene film (110) using a filter. The graphene film is separated from the filter and formed on a substrate (100). USE - Manufacturing method of emitter (claimed). ADVANTAGE - The density and length of the graphene emitter is controlled. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for emitter. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the manufacturing process of emitter.