My Lenovo may turn on but screen does not show?

I turned on my lenovo t-60 and the starting sound and music went on but, the screen did NOT show up. It was still blank. Indicators may not light up either except for the Internet signal. How do O fix this problem so that the screen and indicators may go on again as normal?

Can you connect an External screen to it? If that screen works, then the screen on your laptop needs replacing.