Apple has been working on technologies to elevate glass on demand for keyboards and notifications for a long time, and newly published research from Carnegie Mellon may have a solution.

The technology could enable smartphones like the [iPhone](https://appleinsider.com/inside/iphone "iPhone") to physically deform a display for various elements, such as notifications. For example, such a display could present a raised bump to inform users of notifications more subtly, such as when the smartphone is in silent mode.  