High-dielectric-constant ceramic cover plate with anti-fingerprint function

The utility model relates to a high-dielectric-constant ceramic cover plate with an anti-fingerprint function, which comprises a substrate made of a ceramic material, and a Parylene film layer, an InSn film layer, an SIO2 film layer and an AF film layer which are sequentially deposited and formed on the substrate. The ceramic cover plate can be used on a fifth-generation mobile terminal. A substrate used by the ceramic cover plate is ceramic; the method comprises the following steps: depositing a Parylene material on a substrate; the method comprises the following steps: firstly, filling holesin a ceramic substrate; the cover plate has a high dielectric constant; then preparing an InSn film layer of the non-conductive metal layer by adopting InSn alloy; the island-shaped InSn film layer can avoid the interference of signals; the film can also be used as a visible light reflecting layer of a substrate; according to the preparation method, the SiO2 film layer is prepared on the AF substrate, interference colori