Keyboard Membrane and Keyboard

A keyboard membrane, being a thin sheet molded object thermoformed by a thermoplastic molding membrane, comprising a plurality of concave-convex parts;

• the concave-convex parts comprising a plurality of upwardly protruding pressing parts, each of the pressing parts having a top wall and a peripheral wall extending downward from a periphery of the top wall;
• the keyboard membrane being used for disposing on a key module;
• each of the pressing parts being used for corresponding to a key of the key module;
• a periphery of the keyboard membrane further having a peripheral edge extending outward from the pressing part, and the peripheral edge being used for wrapping the key module;
• and
• the keyboard membrane being a membrane material in the form of at least two layers, comprising:
• a wear-resistant polyurethane (PU) layer and a second polyurethane (PU) layer, the wear-resistant PU layer being polycarbonate polyurethane, or polyurethane added with a crosslinking agent to increase wear resistance, or polyurethane added with a wear-resistant auxiliary agent to reduce friction resistance, the wear-resistant PU layer being a surface layer of the keyboard membrane;
• the second PU layer being disposed on a surface of the wear-resistant PU layer to form an inner layer of the keyboard membrane.