来自英特尔、华盛顿大学和美国马萨诸塞大学的团队开发基于电子墨水的辅助显示屏，不仅可以从手机的无线NFC连接下载文本和图像，而且可以在此过程中获取所需的最少电量进行显示屏更新。

 

    第二显示屏的电子墨水屏使得这一切都成为可能，因为它只有在进行屏幕更新的时候才需要用电。然而，不足之处是第二屏上永远是不变的静态黑白图像。但假如你需要便捷地保存地址、电话号码或者地图的截屏，不需要给LCD通电即可完成。

 

    This NFC-Powered Bonus E-Ink Display for Your Phone Needs No Batteries

 

    No matter what you're doing at a computer, two displays are always better than one, and that could soon be true for your mobile devices as well. Prototypes of dual-display smartphones have already been demonstrated, but researchers have now revealed a wireless second display for your mobile devices that magically sucks the minimal power it requires from a wireless NFC connection.Teams from Intel, the University of Washington, and the University of Massachusetts developed the e-ink based secondary display which can not only download text and images from a phone's wireless NFC connection, but also steal the minimal power it needs to update its own display in the process.

 

    The second display's e-ink screen is what makes this whole approach possible, since it only needs power when it's updating what's on screen. So the downside is that you're stuck with static black and white images on the second display. But if you needed to keep an address or phone number handy, or a screenshot of a map, it allows you to do so without leaving your smartphone's battery-draining LCD powered on.