I have a couple Graphic LCD displays. They both use the ST7920. They are great little displays that require a few pins to communicate serially.
When looking for a library I found the GLCD library for the KS0108 (http://www.arduino.cc/playground/uploads/Code/ks0108GLCD.zip
). It appears to be a very good mature library with many features. I have watch some of the demos on YouTube. There is lots of animation, partitioning of the display, and games.
The problem is that it does not appear to support my chip. I found another library for the ST7920 (http://www.arduino.cc/playground/uploads/Code/LCD12864.zip
) but it seems weak. It also requires most (1K) of my working memory. In fairness, I don't know how much RAM the KS0108 library requires.
Before I start writing my own library, does anyone know of an existing, efficient full featured library?