触摸感应技术有4大类，现分别介绍如下。红外线式触摸屏红外线式触摸屏安装简单，只需为显示器装上光点距架框，无需在屏幕表面加上涂层或接驳控制器。光点距架框的四边排列了红外线发射管及接收管，在屏幕表面形成一个红外线网。用户以手指触摸屏幕某一点时会挡住经过该位置的 Touch sensing technology has four categories, are introduced as follows. Infrared Touch Screen The Infrared Touch Screen is easy to install and simply attaches a dot pitch frame to the display without the need to apply a coating or connect the controller to the screen surface. The light spot is arranged on the four sides of the frame with an infrared transmitting tube and a receiving tube, and forms an infrared network on the surface of the screen. When a user touches the screen at some point with the finger, it will block the passage of the position