Displays using organic light-emitting diodes (OLED) incorporate organic materials that light up when in contact with electricity. The active-matrix aspect of AMOLED sets it apart from OLED. AMOLED, then, is a kind of screen technology that includes not only a way to display light but also a method to detect touch (the "active-matrix" part). While it's true that this method is a part of AMOLED displays as well, super-AMOLEDs are slightly different.
Here's a quick summary of some pros and cons of AMOLED displays.
Pros:
Wide viewing angles
Support for a large range of color
Great display of black
Long battery life if using darker colors
Cons:
Oversaturated images
Shortened battery life when displaying vibrant colors
AMOLED displays are known for being able to render a deep black color when needed, a huge plus on any display and something you'll notice right away when comparing with your standard IPS (in-plane switching) LCD (liquid crystal display). The benefit is obvious when watching a movie or viewing a picture that's supposed to contain 'true' black.
