Touch pad, and touch screen and electronic device using same, and touch pad manufacturing method

A touch pad is disclosed. The disclosed touch pad comprises: a transparent piezoelectric film layer on which electrical signals variate, the electrical signals being generated according to a contact pressure; and an electrode layer comprising a plurality of transparent electrodes disposed in a plurality of areas on the transparent piezoelectric film layer in order to detect the voltages of the electrical signals generated in the areas in which the transparent electrodes are disposed.