Hi Georgia,
Yes, in terms of fixing your laptop, this is a good sign. Yes, it does indicate there's a problem with your display so it is fixable.
Now as to exactly what part of the display is the problem would be the next thing to try and figure out. We frequently see problems with the cables that connect the motherboard to the display since they get flexed and bent every time you open and close the lid. So you might try opening the display up to various angles to see if it comes on or flickers at any point in the process; that would point to a cable as the source of the problem.
If that doesn't help, you probably need to open it up and check the connectors and cables. Verify that the display cables are all plugged in securely then look for any areas where the cable bends and flexes and try manually manipulating them to see if the display reacts when you do.
I have to give HP props for making their service manuals available to the general public so we have guides to go by when we need to fix our machines. Here's the one for your laptop, Georgia.
[link|http://h10032.www1.hp.com/ctg/Manual/c05357609.pdf|OMEN by HP Laptop PC Maintenance and Service GuideIMPORTANT! This document is intended for HP authorized service providers only.|new_window=true]
The display assembly removal procedure is on Page 37. I'd say start by removing the base enclosure then power it up and follow that display cable from the motherboard to the screen, taking note of where it bends. Power up the laptop and fiddle with the cable. It looks like the display cable is replaceable separately from the screen, but if that's not the issue then the LCD is most likely the next item that would need to be replaced.