Change the display time out, brightness and orientation.
INSTRUCTIONS & INFO
ADJUST BRIGHTNESS: Swipe down from the Notification bar, then select the Settings icon > Displays & gestures > Brightness level. Drag the Brightness slider left or right to adjust the brightness manually. Check the Auto brightness checkbox to turn auto brightness on or off. Select OK when finished.
ADJUST SCREEN TIMEOUT: From the Settings screen, select Display & gestures > Screen timeout > desired timeoutoption.
LOCK/UNLOCK SCREEN ROTATION: Swipe down from the Notification bar with two fingers, then select AUTO ROTATE.