Why won't my display turn on?

I have an HP Envy Dv6 (Beats Audio) . I have just recently replaced the battery, but prior to this I was experiencing difficulties with the display. If I turn on the laptop, the power light comes on as does the light over the “wifi/airplane mode key". The fan comes on, and if it is plugged in, the charging light comes on as well.

The display itself however, flicks “on" where I can see that it is backlit but not showing the startup. Then it turns right off and remains black.

Occasionally if I leave the laptop completely turned off and unplugged for (example) a day, it will start normally. However it will continue to experience the same issue a few days.

There are a few other issues with this laptop (overheating, a glitch where if it is not properly shut down it will not recognize any connections, and a few others) but the display is the newest and now most prevalent issue.

Thanks,

Sean