How to Lock Galaxy S3 Screen Automatically
Lock your Android phone automatically after its screen turn off. This action can be done immediately or after from 5 seconds to 30 minutes. Samsung ...Continue
Smart Screen (Smart Screen) on Optimus G is the feature that keeps the screen On as long as your eyes are looking at the screen, and turns off the screen when you look away. To disable / enable smart screen on LG Optimus G do as follows:
1. Open Settings application
2. Under Device settings, go to Display.
3. Mark "Smart Screen", so the screen wont turn off while you are looking at it