Change the display time out, brightness and orientation.
INSTRUCTIONS & INFO
From the home screen, swipe down from the top of the screen, then tap Screen rotation to lock/unlock the screen orientation.
To access additional display settings, tap the Settings icon.
Scroll to and tap Display.
Tap Brightness.
Tap the Auto-brightness checkbox to toggle automatic brightness on/off. Drag the Brightness slider left or right to adjust the brightness manually. Then tap OK.
Tap Screen timeout to change the screen timeout.