An HVAC controller including a controller and a touch screen display operatively coupled to the controller. The touch screen display may include a first region and a second region. The first region of the display may have an array of pixels arranged in a plurality of rows and a plurality of columns for displaying an image in a dot matrix format. The second region of the display may have a plurality of predefined fixed segment graphical icons. The controller may be configured to display one or more selectable options in the first region of the display for selection by a user and to accept selection of a displayed selectable option by detecting a user touch of the displayed selectable option via the touch screen display.