Flexible piezoelectric keyboard

The utility model discloses a flexible piezoelectric keyboard. The flexible piezoelectric keyboard comprises an upper flexible panel, an upper electrode, a piezoelectric film, a lower electrode and a lower flexible back plate, wherein the upper flexible panel, the upper electrode, the piezoelectric film, the lower electrode and the lower flexible back plate are sequentially arranged from top to bottom. The upper electrode and the lower electrode are led out through a leading wire and connected with an outer processor. The flexible piezoelectric keyboard is of a novel piezoelectric keyboard structure, piezoelectric composite material high in piezoelectric property is adopted as a force sensing element, so that the sensitivity and response speed are high; the flexible piezoelectric keyboard is good in impact resistance and durable, conversion between mechanical energy and electric energy is permanent, and electric signals will be generated when keys are touched without causing fatigue damage, so that service li