The technology does not require a cover glass over the display, which leads to a reduction in overall thickness of the device. (ibtimes.com)
Other, more expected changes that the iPad Air 2 will bring in, is the use of the TouchID fingerprint reader which debuted on the iPhone 5s, and also a reduction in thickness of the device. (techtree.com)
The extra rounding that has been applied to the edges of the Galaxy S7 series not only improve its ergonomics, but also help hide the extra thickness of the device. (techspot.com)