US Patent 10540037 Force detection method and apparatus, and electronic terminal

Embodiments of the present application provide a force detection method, a force detection apparatus and an electronic terminal thereof. The force detection method includes: acquiring an output electrical signal of a voltage dividing capacitor formed between a driving electrode and a force sensing electrode, and an output electrical signal of a force detecting capacitor formed between the force sensing electrode and a reference electrode, determining force feature data when a force is applied to the force sensing electrode based on the output electrical signal of the voltage dividing capacitor and the output electrical signal of the force detecting capacitor. Based on the present application, the force detection model is simplified, the voltage variation amount is increased, the impacts caused by environment changes to the force performance are mitigated or eliminated, and environment self-calibration and self-calibration of an initial gap between the force sensing electrode and the reference electrode are implemented.