▎ 摘　　要

NOVELTY - The utility model claims a diaphragm for speaker and a speaker, the diaphragm for speaker comprises an LCP substrate layer and a composite layer compounded on the LCP substrate layer, at least one layer of the composite layer is a graphene layer. The diaphragm for loudspeaker uses LCP material as base material layer and at least one layer in the composite layer is a graphene layer, the LCP base material layer has large rigidity, large tensile strength, which can effectively inhibit the split vibration of the diaphragm, it can improve the technical defect of the film in the vibration process of the fragmentation, and the graphene is a super-thin material with high toughness, large breaking strength, good elasticity, stretching amplitude exceeds 20 %, the LCP substrate layer and the graphene layer are compounded, which greatly reduces the risk of irreversible deformation of the membrane, and effectively improves the reliability of the diaphragm for loudspeaker. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for speaker.