Capacitive touchscreens are increasingly widespread, featuring in mobile phones and tablets, as well as everyday objects such as cars and home appliances. As a result, the interfaces are uniquely placed to provide a means of communication in the era of the Internet of Everything. Here we show that commercial touchscreens can be used as reader interfaces for capacitive coupled data transfer. The transfer of data to the touchscreen is achieved using a 12-bit thin-film capacitive radio frequency identification tag powered by a thin-film battery or a thin-film photovoltaic cell that converts light from the screen. The thin-film integrated circuit has a 0.8 cm2 on-chip monolithic antenna, employs 439 transistors, and dissipates only 31 nW of power at a supply voltage of 600 mV. The chip has an asynchronous data rate of up to 36 bps, which is limited by the touchscreen readout electronics.

中文翻译：

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基于薄膜电子产品的触摸屏标签，适用于万物互联。

电容式触摸屏日益普及，并出现在移动电话和平板电脑以及汽车和家用电器等日常物品中。结果，在万物互联时代，接口被独特地放置以提供一种通信方式。在这里，我们展示了商用触摸屏可以用作电容耦合数据传输的阅读器接口。使用12位薄膜电容式射频识别标签将数据传输到触摸屏，该标签由薄膜电池或转换来自屏幕的光的薄膜光伏电池供电。该薄膜集成电路具有0.8 cm2的片上单片天线，采用439个晶体管，在600 mV的电源电压下仅消耗31 nW的功率。该芯片具有高达36 bps的异步数据速率，