Method for recognizing multi-touch of resistive touch screen

Abstract

Disclosed herein is a method for recognizing a resistive touch screen. The method for recognizing the resistive touch screen includes: sensing touch generated at the resistive touch screen; calculating a difference value, a searching value by detecting voltage at two electrode wirings connected with a transparent resistive layer of the resistive touch screen; and comparing the searching value with a reference value that is a difference value between voltages detected at the two electrode wirings when the resistive touch screen is single-touched, whereby the single touch and the multi-touch can be differentiated. Further, the embodiment sets the error range in the single touch and the error range in the multi-touch and compares these error ranges, thereby making it possible to more accurately differentiate the multi-touch and the single touch and provides various input information, thereby making it possible to provide various user interfaces.

Dependencies are inferred from the claim text.