LG VS840 - Manual (Page 52)

50
The Basics
The default Lock screen
Press the Power/Lock Key to illuminate the touchscreen if it has timed
out. If the unlock sequence is set to Swipe, a default Lock screen is
displayed, but you can still conveniently check the date, time, and Status
Bar icons. You can drag the Status Bar down to open the Notifications
Panel without unlocking the screen. In addition, you can also quickly access
four applications (Phone, Messaging, Voicemail, and Camera) without fully
unlocking the screen. Simply swipe the icon upward to open and use it.
Changing the items on the default Lock Screen
1. From the Home screen, touch the Apps Key > Settings > Lock
screen.
2. Touch Clocks & shortcuts.
 To change the Quick access icons, touch one of the icons at the
bottom of the screen, then touch the application you want to replace
it with.
 To change the date and time format, swipe left or right until the one
you want is displayed.
3. Touch the Save button to save these settings.