Proximity sensors have been around for so long that they have become more of an expected trait than an actual feature. However, it was only a matter of time before developers found some alternative ways to use the proximity sensor. This was started awhile ago, as an application called Smart Screen Off gave users the ability to turn their screens off using the proximity sensor instead of the power button.
Building on the functionality of the first app, XDA Forum Member DDeleted brings us Smart Screen On, which performs the opposite function. It was initially created for the Samsung Galaxy Nexus, but it has been shown to work on other devices as well. The application does far more than its predecessor. Options include being able to wave your hand over the sensor to turn the screen on, tapping and swiping to turn it on, starting at boot, and even turning the screen off similar to functionality offered by Smart Screen Off.
Users looking to give this a try can head on over to the original thread for additional info and download links._________