Chosen Solution
black screen but ipad is on
If your iPad blinks for a second when the screen is turned on as @coopstrom described above than try a simple and effective trick that fixes this common issue on an iPad 2. Try the “iPad spanking trick” where you turn the iPad over and give it numerous sharp whacks until the LCD comes back on. Here’s a link to a similar post: My Ipad screen not working please help me?