Sounds like both screens are faulty, you would need to follow the guide in here on how to replace them. The reason it turns off when you fully open it is that the top ribbon cable for the screen is getting more pressure on it when you open the hinge all the way so it is probably disconnecting. Unless you have experience with taking these apart I wouldn't recommend trying to do the top screen yourself though as it's very easy to damage the top screen ribbon cable.
Have you tried hard resetting it? Usually you have to hold power button and either volume up or down. A quick Google should tell you how to hard reset it.
