Touch control force detection method, touch control force detection device, touch control panel and display device

The invention provides a touch control force detection method, a touch control force detection device, a touch control panel and a display device. The method comprises following steps: S1. obtaining the number N of touch control points of a panel to be detected, wherein N is an integer larger than or equal to 1; S2. randomly selecting M test positions in the panel to be detected, wherein M is an integer larger than or equal to N, and obtaining the capacitance variation of each test position, wherein the capacitance variation is the variation of the capacitance between an induced electrode and a reference electrode at a test position when touching the panel to be detected at the position; S3. according to the capacitance variation at each test position, obtaining the panel deformation variation at each test position; S4. according to the corresponding relationship between panel deformation variation and the touch control force, obtaining the touch control force at touch control points. By means of the touch co