Preparation process of fingerprint module cover plate LOGO

The invention, which relates to the field of the preparation process of the fingerprint module cover plate, discloses a preparation process of a fingerprint module cover plate LOGO. The preparation process is implemented as follows: a piece of cover plate base material is split into a single piece; CNC machining and toughening treatment are carried out on the single glass piece; after the toughening treatment, the processed glass piece is placed in a fixture for setting; the processed glass surface is processed by using one or two layers of ink in a silk-screen or spraying manner; laser irradiation is carried out to generate a height difference; the glass unit after laser treatment is naked and cured; silk screen or spraying of one or two layers of ink is carried out; and then baking and curing, cleaning, and checking for delivery are carried out successively. According to the invention, the laser irradiation strength is low and thus the glass cover plate is protected from being broken; dust after laser irrad