Trademark and Patent Office of the United States has recently published details of a new Microsoft patent related to a 2-way system for mobile phones and tablets. This invention features a second screen is a low-power, possibly with E Ink (such as eReader) that will feature several types of information.
The second screen can create a vendor can move some standard items like a clock from the main screen to the second screen, or display information other. This second screen can also use low-power processor itself. The use of low-power screen can be useful if you just want to look at, or SMS entry on your smartphone, without having to turn on the main screen that greater helplessness.