HTC DROID Incredible - Manual (Page 37)

Basics 
Waking up from Sleep mode
Your phone wakes up automatically when you have an incoming call.
To wake up your phone manually, press the POWER button. You will
then see that the phone has locked the screen. To find out how to
unlock the screen, see “Unlocking the screen.”
Unlocking the screen
Press the bar on the lock screen and then slide your finger down to
unlock the screen or to answer an incoming call.
If you have set up a screen unlock pattern, you will be prompted to
draw the pattern on the screen before it unlocks. For more information
on how to create and enable the screen unlock pattern, see
“Protecting your phone with a screen lock” in the Security chapter.