METHOD FOR DETECTING MULTI TOUCH IN A TOUCH DISPLAY CAPABLE OF EXACTLY DETECTING LINE, AND POINT

摘要

PURPOSE: A method for detecting multi touch in a touch display is provided to eliminate a virtual image which is generated by touching a sensor.;CONSTITUTION: An infrared rays transmitting device projects beam by touching a sensor. The number of blocked unit is checked in an infrared rays receiving device(S1). A number of infrared beam receiving units, and sensor distribution information are checked. A virtual image is eliminated. An exact sensor touching point is checked by the virtual image elimination and sensor detecting information(S2).;COPYRIGHT KIPO 2011