Method for recognising multi-touch of resistive type touch-screen and portable terminal using the same

摘要

PURPOSE: A multi-recognition method of a resistance film method capable of implementing various user interfaces is provided to reduce a cost of a mobile terminal without using the touch screen for implementing user interface using multi-touch. CONSTITUTION: A multi touch reading method of a resistance film method touch screen is as follows. The touch operation is sensed(S601). When sensing the touch operation, it confirms whether to be multi touch. The positive terminal of the X-axis terminal and the output voltage size of a cathode are compared. The positive terminal of the Y-axis terminal and the output voltage size of a cathode are compared.