Is the screen dead or is the backlight dead. If its a backlight, turn it on, let it boot and hold the screen at an angle (move it around somewhat) to some bright light to see if you can see dark icons etc on the screen.
Most Laptop LCDs die because of backlight. When its a backlight problem the computer still works ok and you can see very faint images on the screen.
The backlight has 2 major components: a cold cathode tube (similar to a very thin very bright fluro tube); and an inverter powersupply to supply the cold cathode with high voltage.
Either can be replaced by yourself but you have to diagnose if it is a backlight problem 1st.
Post back and tell us if it is.