How to take out the Information Display on a Nikon D3000?

When I want to take a picture I can't see anything because of the Information Display.

That is all controlled in your cameras menu.

Look in the user manual and pick the type display you want.

The D3000 is a DSLR camera. You're NOT supposed to look at the rear LCD when taking a photo with a DSLR. You're supposed to frame the photo by looking through the viewfinder. If you can't handle that, sell your DSLR and purchase a point and shoot camera instead.

If you are trying to see the picture after you just took it, you might be on a mode that shows all of the technical information. Press the up or down key on the rear selector to cycle through the different display options, and you'll get to normal soon enough.

You do not have liveview in that camera. You can't look at the screen while taking pictures.