1. From the home screen, tap Apps.
   
2. Swipe to, then tap Settings.
   
3. From the "My device" tab, tap Display.
   
4. To adjust the display brightness, tap Brightness.
   
5. Tap the Automatic brightness checkbox.
   
6. Touch, then drag the Brightness slider to set the desired brightness level.
   
7. Tap OK.
   
8. To adjust the screen timeout duration, tap Screen timeout.
   
9. Tap the desired setting.
   
10. To quickly adjust the display brightness, from the home screen, swipe down from the notifications bar.
    
11. Touch, then drag the Brightness slider to adjust the display brightness.