电阻式触摸屏两点触摸原理

探讨了电阻触摸屏的原理,提出了在四线电阻触摸屏上,突破四线接口的限制从而实现两点触摸。通过分析四线电阻触摸屏电路,阐述了电阻触摸屏两点实现原理。利用此原理可以求出两点坐标,开发出电阻触摸屏两点触摸驱动,能移植在各种嵌入式系统下,在消费电子和工业控制等领域都可有广泛应用,具有很大的研究价值和经济价值。

he Principle of Dual Touch in Resistive Screen

This paper put forward a way to implement the dual touch in four-wire resistive screen by investigating the principle of resistive screen. The way to get the dual touch positions was described clearly, which can be transplanted to kinds of embedded systems, and can be widely applied in the fields of consumer electronics and industrial control, with lots of research and economic value.