Sony Light-Up Controller Patent Details Figures 3-6 of the Sony patent show how the light-up controller would assist players in knowing which buttons to press at any given time.

This could allow Backbone to streamline its production by selling a single Backbone One controller model that would work with both PlayStation and Xbox, instead of selling separate models for each ...

Another image shows an on-screen interface buttons similar to those on a TV remote, with images indicating Play, Pause, Next, Previous, Fast Forward, and rewind. There's also a "Return" button.