These screens are called capacitive touchscreens because the nodes act like capacitors by storing charge.
这些屏幕被称为电容式触摸屏，因为节点通过存储电荷就像电容器一样。
Capacitive touchscreen
原声例句
TED-Ed（视频版）
英语百科
Touchscreen
![The prototype[2] x-y mutual capacitance touchscreen (left) developed at CERN[3][4] in 1977 by Bent Stumpe, a Danish electronics engineer, for the control room of CERN’s accelerator SPS (Super Proton Synchrotron). This was a further development of the self-capacitance screen (right), also developed by Stumpe at CERN[5] in 1972.](https://wiki-gateway.eudic.net/wikipedia_en/I/m/CERN-Stumpe_Capacitance_Touchscreen.jpg)
A touchscreen is an input device normally layered on the top of an electronic visual display of an information processing system. A user can give input or control the information processing system through simple or multi-touch gestures by touching the screen with a special stylus and/or one or more fingers. Some touchscreens use ordinary or specially coated gloves to work while others use a special stylus/pen only. The user can use the touchscreen to react to what is displayed and to control how it is displayed; for example, zooming to increase the text size.
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